Florian Kongoli - Academia.edu (original) (raw)

Papers by Florian Kongoli

The industrial area around RTB Bor encompasses about 9,190,940 tons of techno genic deposits of c... more The industrial area around RTB Bor encompasses about 9,190,940 tons of techno genic deposits of copper smelting slag with an average of 0.715% copper content. As part of a project to recuperate copper from these deposits, this work investigates the effect of the rapid cooling of these slags on their physicochemical milling and flotation properties. Two sets of samples from these deposits were analyzed and compared. The first set of samples were analyzed as is, without any pre-treatment. The second set of samples were melted in a furnace and then quenched and granulated in the water. Both sets of samples were analyzed and compared in terms of their physicochemical, milling and flotation properties. This included the results of chemical and SEM - EDS tests, Bond Work Index in rods and balls mills, milling kinetics and flotation parameters. The analysis and comparison served to draw proper conclusions on the copper recovery of each set of conditions.

In a previous paper, the ORIEN Technology was introduced as a new, compact, energy intensive and ... more In a previous paper, the ORIEN Technology was introduced as a new, compact, energy intensive and self-sufficient as well as environmentally friendly iron and steel technology that has numerous advantages compared to the classical iron and steel production technologies. The purpose of this paper is to describe the basic physicochemical principles of this process. The core of the technology, that can otherwise be named a direct iron-ore to steel technology, is a special direct liquid-state reduction of unique iron-ore cold-pressed briquettes in a single electric furnace unit achieving simultaneously the reduction of iron ore in the briquettes and converting it into steel based on the principles of the energy self-sufficiency. The output of ORIEN process is a unique iron melt of a special type in which the carbon exists in non-equilibrium colloidal form and can be controlled to vary widely from 0.04% to 30%. Based on these fundamentals the new ORIEN technology can be used to produce va...

The role of science and technology as one of the most important pillars of sustainable developmen... more The role of science and technology as one of the most important pillars of sustainable development has been analysed within the new FLOGEN sustainability framework. Many distant and recent historical examples have been considered to make the point that science and technology are grand disruptors of boundaries, borders, and ways of life, and they have opened society’s eyes to new serious problems and realities. The paper points out that science and technology are well credited for this great diagnostic role, but have been frequently ignored for their role as solution producers. Numerous examples illustrate the fact that usually solutions are sought far from science and technology, or without their close cooperation, and this has been in fact the cause of failures. It is shown that science and technology are grand solution providers, and this is clear from the distant, recent, and current realities, where they have proven wrong all non-scientific solutions or doomsday predictions. It ...

Metallurgical and power industries are the largest consumers of organic fuel. Fuel and energy res... more Metallurgical and power industries are the largest consumers of organic fuel. Fuel and energy resources make more than 30% of the total cost of the production. The energy efficiency of the entire cycle of a traditional metallurgical process in Russia is about 20%. Almost 40-50% of the produced energy is lost with the exhaust gas. As such recuperating the exhaust gas energy in thermal and chemical forms is an efficient way to maximize the utilization of fuel energy. The recuperation of the thermal energy is usually done through waste heat boilers, cooling systems, and heating fuel installations in adjacent power plants. An alternative to this method is the recuperation of exhaust energy of the gas by using its chemical potential to obtain another synthetic gas which can serve as fuel for other units or engines. This paper introduces a new spray-emulsion metallurgical technology (SER) that makes this possible. This new technology has several advantages: It assures a high speed physica...

... 179,47 € Ajouter au panier le livre de KONGOLI Florian, REDDY Ramana G. Date de parution : 05... more ... 179,47 € Ajouter au panier le livre de KONGOLI Florian, REDDY Ramana G. Date de parution : 05-2010 Langue : ANGLAIS 860p. Paperback Disponible chez l'éditeur (délai d'approvisionnement : 7 jours). ... It Is All About Energy (PR Atkins). ...

TMS Annual Meeting, 1998

Non-ferrous smelting slags can contain magnesia, which substantially increases the liquidus tempe... more Non-ferrous smelting slags can contain magnesia, which substantially increases the liquidus temperature. One option to counter this increase is to flux with calcia. In this work, experimental liquidus measurements including new measurements on industrial slags have been compared with a FACT-based thermodynamic model, which predicts the liquidus surface of multi-component iron silicate smelting slags containing both magnesia and calcia. The predictions, which agree well with experimental results, are summarized in both isothermal and non-isothermal diagrams to give a quantitative description of the liquidus surface

The scope of applications of silicon nitride (Si3N4) has increased notably in the last years. In ... more The scope of applications of silicon nitride (Si3N4) has increased notably in the last years. In addition to its well-known structural properties, not only it has been considered as matrix or reinforcement in metal and ceramic composites but also as electronic material and biomaterial. Owing to the variety of phase shapes in which it can be produced, namely, particles, whiskers, fibers, films and coatings, Si3N4 is selected for various applications. Recently, orthopedic applications and bacteriostatic characteristics of silicon nitride compared to that of titanium biomaterials have been reported. Inherent to the potential of Si3N4 is the synthesis route used. The hybrid system chemical vapor deposition (or infiltration) (HYSY-CVD, HYSY-CVI) route has been proposed and applied for synthesizing Si3N4 in a variety of morphologies. Alpha silicon nitride produced by this route has also been reported as a promising candidate for emitting in the blue light region. In this contribution, aut...

In a previous publication at FLOGEN SIPS 2016, ORIEN Technology was introduced as a new technolog... more In a previous publication at FLOGEN SIPS 2016, ORIEN Technology was introduced as a new technology that is compact, energy intensive and self-sufficient. It is also environmentally friendly with numerous advantages compared to the classical iron and steel production technologies. In a subsequent paper at FLOGEN SIPS 2017, the basic physicochemical principles of this process were described. This included its special characteristics of direct liquid-state reduction of unique iron-ore cold-pressed briquettes which simultaneously achieve the reduction of iron ore out of the briquettes and convert it into steel. This process is performed in a single electric furnace unit and produces a unique iron melt of a special type in which the carbon exists in a non-equilibrium colloidal form that can be controlled to vary widely from 0.04% to 30%. This paper describes various unique characteristics and advantages of this process in terms of energy saving, environmental protection, economy and stee...

The refining processes of precious and platinum group metals generate large volumes of aqueous re... more The refining processes of precious and platinum group metals generate large volumes of aqueous residues that contain considerable concentration levels of copper (Cu), gold (Au), silver (Ag), platinum (Pt), Palladium (Pd), Iridium ( Ir ) and other platinum group metals. One possible treatment of these residues is their use in the production of secondary copper anodes (SCA) which in turn can be used in electrolytic refining processes to separate PM, PGM and other elements that these SCA contains. This work, which is part of a bigger study on separation of Au, Ag, Pt, Pd and Ir from anode slime gained from secondary copper, describes a compositional characterization of secondary copper anodes obtained from various aqueous residues. It was found that SCA contains Cu, PMs, PGM and some other recoverable metals such as nickel, selenium and tellurium. The composition of the secondary copper anodes differs from the composition of the primary Cu anode. Although SCA contains less precious met...

INFOMANPRO, 2020

Pengembangan pariwisata Kabupaten Trenggalek diarahkan pada pengembangan wisata alam dan budaya, ... more Pengembangan pariwisata Kabupaten Trenggalek diarahkan pada pengembangan wisata alam dan budaya, pemasaran daya tarik wisata, pembinaan dan pengembangan nilai-nilai budaya, pembinaan kesenian, peninggalan sejarah yang bertujuan untuk mengembangkan daya tarik wisata potensial sebagai daya tarik utama bagi wisatawan, yang menjadikan pariwisata sebagai sarana peningkatan pendapatan masyarakat, dan daerah, serta media bagi penciptaan lapangan dan kesempatan kerja. Di Desa Watulimo, Kecamatan Watulimo dilakukan serangkaian kegiatan yang dimulai dengan Survei Pendahuluan, Pengumpulan Data Lapangan, Analisa Data dan pembuatan perencanaan wisata. Dengan demikian tersusunlah Masterplan Desa Wisata Kepung Budaya dengan memperhatikan bangunan tata ruang dalam, keseimbangan, keserasian dan keselarasan dengan Lingkungan.

Orthopaedic Journal of Sports Medicine, 2018

Background: Revision anterior cruciate ligament (ACL) reconstruction can be potentially devastati... more Background: Revision anterior cruciate ligament (ACL) reconstruction can be potentially devastating for a patient. As such, it is important to identify prognostic factors that place patients at an increased risk for graft failure. There are no data on the effects of patellar tendinopathy on failure of ACL reconstruction when using a bone-patellar tendon-bone (BPTB) autograft. Purpose/Hypothesis: The purpose of this study was to investigate the association of patellar tendinopathy with the risk of graft failure in primary ACL reconstruction when using a BPTB autograft. The hypothesis was that patellar tendinopathy would result in higher rates of graft failure when using a BPTB autograft for primary ACL reconstruction.

Materialwissenschaft und Werkstofftechnik, 2009

This paper has as main objective to investigate the influence of nickel (Ni), iron (Fe) and coppe... more This paper has as main objective to investigate the influence of nickel (Ni), iron (Fe) and copper (Cu) addition on the tantalum (Ta) powder processing, by promoting a liquid phase sintering (LPS). The role of these metals is to lower the Ta sintering temperature, maintaining good densification and mechanical properties.

High Temperature Materials and Processes, 2011

ABSTRACT The so-called "fayalite" slag, despite problems associated with it, is... more ABSTRACT The so-called "fayalite" slag, despite problems associated with it, is the most widely used slag in copper smelting processes. Thirty years ago, in order to overcomes some drawbacks of this slag a new "calcium ferrite" slag was proposed especially for continuous copper converting. Since both slags have strong and weak points depending on the field of their application about 8 years ago another new "ferrous calcium silicate" slag was proposed that is expected to solve the drawbacks of each slag. This new slag is defined as mainly consisting of FeOx, CaO and SiO2 as its main components but it can practically have several combinations of these constituents. In order to determine the best area of this slag for possible industrial application the quantification of phase relations is an important subject. In this paper the work carried out by the authors in quantifying through an original physical model the phase relations, liquidus surface, liquidus regions, behavior of solid phases and the effect of minor components is reviewed. Several special compositions of this slag have been identified and discussed for possible applications in the industrial practice.

The industrial area around RTB Bor encompasses about 9,190,940 tons of techno genic deposits of c... more The industrial area around RTB Bor encompasses about 9,190,940 tons of techno genic deposits of copper smelting slag with an average of 0.715% copper content. As part of a project to recuperate copper from these deposits, this work investigates the effect of the rapid cooling of these slags on their physicochemical milling and flotation properties. Two sets of samples from these deposits were analyzed and compared. The first set of samples were analyzed as is, without any pre-treatment. The second set of samples were melted in a furnace and then quenched and granulated in the water. Both sets of samples were analyzed and compared in terms of their physicochemical, milling and flotation properties. This included the results of chemical and SEM - EDS tests, Bond Work Index in rods and balls mills, milling kinetics and flotation parameters. The analysis and comparison served to draw proper conclusions on the copper recovery of each set of conditions.

In a previous paper, the ORIEN Technology was introduced as a new, compact, energy intensive and ... more In a previous paper, the ORIEN Technology was introduced as a new, compact, energy intensive and self-sufficient as well as environmentally friendly iron and steel technology that has numerous advantages compared to the classical iron and steel production technologies. The purpose of this paper is to describe the basic physicochemical principles of this process. The core of the technology, that can otherwise be named a direct iron-ore to steel technology, is a special direct liquid-state reduction of unique iron-ore cold-pressed briquettes in a single electric furnace unit achieving simultaneously the reduction of iron ore in the briquettes and converting it into steel based on the principles of the energy self-sufficiency. The output of ORIEN process is a unique iron melt of a special type in which the carbon exists in non-equilibrium colloidal form and can be controlled to vary widely from 0.04% to 30%. Based on these fundamentals the new ORIEN technology can be used to produce va...

The role of science and technology as one of the most important pillars of sustainable developmen... more The role of science and technology as one of the most important pillars of sustainable development has been analysed within the new FLOGEN sustainability framework. Many distant and recent historical examples have been considered to make the point that science and technology are grand disruptors of boundaries, borders, and ways of life, and they have opened society’s eyes to new serious problems and realities. The paper points out that science and technology are well credited for this great diagnostic role, but have been frequently ignored for their role as solution producers. Numerous examples illustrate the fact that usually solutions are sought far from science and technology, or without their close cooperation, and this has been in fact the cause of failures. It is shown that science and technology are grand solution providers, and this is clear from the distant, recent, and current realities, where they have proven wrong all non-scientific solutions or doomsday predictions. It ...

Metallurgical and power industries are the largest consumers of organic fuel. Fuel and energy res... more Metallurgical and power industries are the largest consumers of organic fuel. Fuel and energy resources make more than 30% of the total cost of the production. The energy efficiency of the entire cycle of a traditional metallurgical process in Russia is about 20%. Almost 40-50% of the produced energy is lost with the exhaust gas. As such recuperating the exhaust gas energy in thermal and chemical forms is an efficient way to maximize the utilization of fuel energy. The recuperation of the thermal energy is usually done through waste heat boilers, cooling systems, and heating fuel installations in adjacent power plants. An alternative to this method is the recuperation of exhaust energy of the gas by using its chemical potential to obtain another synthetic gas which can serve as fuel for other units or engines. This paper introduces a new spray-emulsion metallurgical technology (SER) that makes this possible. This new technology has several advantages: It assures a high speed physica...

... 179,47 € Ajouter au panier le livre de KONGOLI Florian, REDDY Ramana G. Date de parution : 05... more ... 179,47 € Ajouter au panier le livre de KONGOLI Florian, REDDY Ramana G. Date de parution : 05-2010 Langue : ANGLAIS 860p. Paperback Disponible chez l'éditeur (délai d'approvisionnement : 7 jours). ... It Is All About Energy (PR Atkins). ...

TMS Annual Meeting, 1998

Non-ferrous smelting slags can contain magnesia, which substantially increases the liquidus tempe... more Non-ferrous smelting slags can contain magnesia, which substantially increases the liquidus temperature. One option to counter this increase is to flux with calcia. In this work, experimental liquidus measurements including new measurements on industrial slags have been compared with a FACT-based thermodynamic model, which predicts the liquidus surface of multi-component iron silicate smelting slags containing both magnesia and calcia. The predictions, which agree well with experimental results, are summarized in both isothermal and non-isothermal diagrams to give a quantitative description of the liquidus surface

The scope of applications of silicon nitride (Si3N4) has increased notably in the last years. In ... more The scope of applications of silicon nitride (Si3N4) has increased notably in the last years. In addition to its well-known structural properties, not only it has been considered as matrix or reinforcement in metal and ceramic composites but also as electronic material and biomaterial. Owing to the variety of phase shapes in which it can be produced, namely, particles, whiskers, fibers, films and coatings, Si3N4 is selected for various applications. Recently, orthopedic applications and bacteriostatic characteristics of silicon nitride compared to that of titanium biomaterials have been reported. Inherent to the potential of Si3N4 is the synthesis route used. The hybrid system chemical vapor deposition (or infiltration) (HYSY-CVD, HYSY-CVI) route has been proposed and applied for synthesizing Si3N4 in a variety of morphologies. Alpha silicon nitride produced by this route has also been reported as a promising candidate for emitting in the blue light region. In this contribution, aut...

In a previous publication at FLOGEN SIPS 2016, ORIEN Technology was introduced as a new technolog... more In a previous publication at FLOGEN SIPS 2016, ORIEN Technology was introduced as a new technology that is compact, energy intensive and self-sufficient. It is also environmentally friendly with numerous advantages compared to the classical iron and steel production technologies. In a subsequent paper at FLOGEN SIPS 2017, the basic physicochemical principles of this process were described. This included its special characteristics of direct liquid-state reduction of unique iron-ore cold-pressed briquettes which simultaneously achieve the reduction of iron ore out of the briquettes and convert it into steel. This process is performed in a single electric furnace unit and produces a unique iron melt of a special type in which the carbon exists in a non-equilibrium colloidal form that can be controlled to vary widely from 0.04% to 30%. This paper describes various unique characteristics and advantages of this process in terms of energy saving, environmental protection, economy and stee...

The refining processes of precious and platinum group metals generate large volumes of aqueous re... more The refining processes of precious and platinum group metals generate large volumes of aqueous residues that contain considerable concentration levels of copper (Cu), gold (Au), silver (Ag), platinum (Pt), Palladium (Pd), Iridium ( Ir ) and other platinum group metals. One possible treatment of these residues is their use in the production of secondary copper anodes (SCA) which in turn can be used in electrolytic refining processes to separate PM, PGM and other elements that these SCA contains. This work, which is part of a bigger study on separation of Au, Ag, Pt, Pd and Ir from anode slime gained from secondary copper, describes a compositional characterization of secondary copper anodes obtained from various aqueous residues. It was found that SCA contains Cu, PMs, PGM and some other recoverable metals such as nickel, selenium and tellurium. The composition of the secondary copper anodes differs from the composition of the primary Cu anode. Although SCA contains less precious met...

INFOMANPRO, 2020

Pengembangan pariwisata Kabupaten Trenggalek diarahkan pada pengembangan wisata alam dan budaya, ... more Pengembangan pariwisata Kabupaten Trenggalek diarahkan pada pengembangan wisata alam dan budaya, pemasaran daya tarik wisata, pembinaan dan pengembangan nilai-nilai budaya, pembinaan kesenian, peninggalan sejarah yang bertujuan untuk mengembangkan daya tarik wisata potensial sebagai daya tarik utama bagi wisatawan, yang menjadikan pariwisata sebagai sarana peningkatan pendapatan masyarakat, dan daerah, serta media bagi penciptaan lapangan dan kesempatan kerja. Di Desa Watulimo, Kecamatan Watulimo dilakukan serangkaian kegiatan yang dimulai dengan Survei Pendahuluan, Pengumpulan Data Lapangan, Analisa Data dan pembuatan perencanaan wisata. Dengan demikian tersusunlah Masterplan Desa Wisata Kepung Budaya dengan memperhatikan bangunan tata ruang dalam, keseimbangan, keserasian dan keselarasan dengan Lingkungan.

Orthopaedic Journal of Sports Medicine, 2018

Background: Revision anterior cruciate ligament (ACL) reconstruction can be potentially devastati... more Background: Revision anterior cruciate ligament (ACL) reconstruction can be potentially devastating for a patient. As such, it is important to identify prognostic factors that place patients at an increased risk for graft failure. There are no data on the effects of patellar tendinopathy on failure of ACL reconstruction when using a bone-patellar tendon-bone (BPTB) autograft. Purpose/Hypothesis: The purpose of this study was to investigate the association of patellar tendinopathy with the risk of graft failure in primary ACL reconstruction when using a BPTB autograft. The hypothesis was that patellar tendinopathy would result in higher rates of graft failure when using a BPTB autograft for primary ACL reconstruction.

Materialwissenschaft und Werkstofftechnik, 2009

This paper has as main objective to investigate the influence of nickel (Ni), iron (Fe) and coppe... more This paper has as main objective to investigate the influence of nickel (Ni), iron (Fe) and copper (Cu) addition on the tantalum (Ta) powder processing, by promoting a liquid phase sintering (LPS). The role of these metals is to lower the Ta sintering temperature, maintaining good densification and mechanical properties.

High Temperature Materials and Processes, 2011

ABSTRACT The so-called "fayalite" slag, despite problems associated with it, is... more ABSTRACT The so-called "fayalite" slag, despite problems associated with it, is the most widely used slag in copper smelting processes. Thirty years ago, in order to overcomes some drawbacks of this slag a new "calcium ferrite" slag was proposed especially for continuous copper converting. Since both slags have strong and weak points depending on the field of their application about 8 years ago another new "ferrous calcium silicate" slag was proposed that is expected to solve the drawbacks of each slag. This new slag is defined as mainly consisting of FeOx, CaO and SiO2 as its main components but it can practically have several combinations of these constituents. In order to determine the best area of this slag for possible industrial application the quantification of phase relations is an important subject. In this paper the work carried out by the authors in quantifying through an original physical model the phase relations, liquidus surface, liquidus regions, behavior of solid phases and the effect of minor components is reviewed. Several special compositions of this slag have been identified and discussed for possible applications in the industrial practice.