production of slag for silicon refining molten sog solar macedonia

The whole equipment includes vibrating feeder, jaw crusher, Raymond mill, bucket elevator, belt conveyor, adjusting hopper, control cabinet, etc. The main grinding equipment is our patented product, 4525 Raymond Mill, with the capacity of 35t/h.

The limonite is a kind of common iron mineral. Limonite shows various structures, such as massive, earthy, milky or grape-like structure. Limonite is mainly used in chemical industry, building materials, refractory materials, metallurgy and other industri

Gypsum powder plant is a kind of micronized line which turns natural dihydrate gypsum ore (raw gypsum) or industrial by-product gypsum (desulphurization gypsum, phosphogypsum, etc.) into construction gypsum (calcined gypsum) through crushing, grinding, he

River Gravel Mobile Crushing production line in Kenya is composed of FTM938E69 mobile coarse crushing station, FTM935F1214L（4YK1860） medium and fine mobile crushing and screening station.

Magnetic separation makes use of magnetic differences between minerals to separate material, which occupies a very important position in iron ore separation field. Magnetic separating plant has the advantages of energy saving, high efficiency and high

Related Equipments: two PE600×900 jaw crushers, two impact crushers, two cone crushers, two sand makers and three circular vibrating screens.

Aug 06 2001 · abstractNote This report summarizes the results of the developed technology for producing SoG silicon by upgrading MG silicon with a cost goal of 20kg in largescale production A Heat Exchanger Method HEM furnace originally designed to produce multicrystalline ingots was modified to refine molten MG silicon feedstock prior to directional solidification

in an MG silicon production plant where molten MG silicon from a standard production furnace was poured into a ladle and laboratorydeveloped procedures were used prior to solidification of the

Production of Solar Grade SoG Silicon by Refining Liquid Metallurgical Grade MG Silicon Final Report 19 April 2001 Technical Report Khattak C P Joyce D B Schmid F This report summarizes the results of the developed technology for producing SoG silicon by upgrading MG silicon with a cost goal of more » 20kg in largescale production

The kinetics of boron removal from liquid silicon during slag refining as a process step in the production of solar grade silicon has been investigated by means of small scale mass transfer

A program has been initiated to produce solar grade SoG silicon by upgrading metallurgical grade MG silicon using pyrometallurgical techniques in the liquid state followed by directional

Impurity removal from metallurgical grade silicon MGSi is an important issue for solargrade silicon production and solvent refining is used as an effective method to purify silicon

In the present paper the purification process for the solar grade silicon SOGSi of which the required purity is 7 N and the thermodynamic considerations and evaluation of the refining process are discussed Additionally the refining process for SOGSi production was evaluated

The slag treatment on MGSi for SOGSi production is based on the principle of liquidliquid extraction in steel industry The slag used for the extraction of impurities must dissolve individual impurities better than molten silicon does the solubility of silicon in the slag must

Aug 06 2001 · articleosti786367 title Production of Solar Grade SoG Silicon by Refining Liquid Metallurgical Grade MG Silicon Final Report 19 April 2001 author Khattak C P and Joyce D B and Schmid F abstractNote This report summarizes the results of the developed technology for producing SoG silicon by upgrading MG silicon with a cost goal of 20kg in largescale production

For industrial use silicon can be classified into three categories according to their purity metallurgical grade silicon MGSi 2N solar grade silicon SOGSi 6N–7N and semiconductor grade silicon SEGSi 11N–12N

Production of solargrade silicon by refining of liquid metallurgicalgrade silicon Article PDF Available · March 1999 with 129 Reads How we measure reads

The simplicity of the refining process when adapted to a commercial MG silicon plant is expected to produce solar grade SoG silicon at low cost View Show abstract

The slag treatment on MGSi for SOGSi production is based on the principle of liquidliquid extraction in steel industry The slag used for the extraction of impurities must dissolve individual impurities better than molten silicon does the solubility of silicon in the slag must be low and the slag must be nonreactive with molten silicon and

Thermodynamics on SOGSi Refining Processes Institute of Industrial Science and Waste Management ･Microwave Processing for Recycling and Waste Treatment ･Thermodynamics and Processing on Solar Grade Silicon SOGSi Production 2 Slag SiO 2 Crucible Molten SiMg Alloy Molten MgSiO 3 SiO 2 SiO 2Al 2 O 3 Slag MgSiO 3

As a new promising route for solar grade silicon SOGSi production metallurgical refining processes was developed in the early eighties of the last century followed by the establishment of NEDOJFE process in the beginning of the 2000s where P was removed by electron beam EB in vacuum conditions and B by ArH2O plasma

PROCESSES FOR THE PRODUCTION OF SILICON Raw Materials Silicon metal is made from the reaction of silica silicon dioxide SiO2 and carbon materials like coke coal and wood chips Silica is typically received in the form of metallurgical grade gravel This gravel is 995 silica and is 3 x 1 or 6 x 1 in 8 x 3 cm or 15 x 3 cm in size

Removal methods of impurity from metallurgicalgrade silicon Si are intensively studied to produce solargrade silicon SoGSi with a smaller economical load and lower cost Removal of phosphorus P has been an important issue because of difficulties in application of conventional metallurgical methods such as solidification refining Because P evaporates preferentially from molten Si due

The steel slag produced during the primary stage of steel production is referred to as furnace slag or tap slag This is the major source of steel slag aggregate After being tapped from the furnace the molten steel is transferred in a ladle for further refining to

Addressing many aspects of extraction and processing metallurgy this volume covers in three sections modeling of multiscale phenomena in materials processing production refining and recycling of rare earth metals and solar cell silicon

Production of solargrade silicon through metallurgical refining methods can be less expensive than current production methods both in terms of energy use and capital cost Slag refining is a potential metallurgical refining method for removal of boron from silicon

in slag–silicon equilibria for oxidative refining of metallurgical silicon for solar cell applications Solar energy materials and solar cells 9412 elements between the molten silicon and slag was examined in terms of the basicity and oxygen for it to remain a possible starting material for the production of SoGSi Many