Smelting bismuth must undergo smelting and refining in two stages smelting bismuth-containing feedstock is processed through the initial fire or wet, the crude intermediate outputs; bismuth refining is further refined crude bismuth, bismuth fine output. There are many methods of scouring and refining, and different methods are often chosen depending on the raw materials.
First, rough
1. After mixing reverberatory furnace smelting concentrate button pulverized coal concentrates with a reducing agent, replacing the scrap iron agent, soda ash flux and other ingredients, mixing was added reverberatory furnace smelting, output slag, matte and rough inserts.
2. Converter smelting of oxidized slag The precious lead produced by reduction and smelting of lead anode mud is charged into a silver furnace, and the oxidized drill slag produced in the oxidative blowing process is added to the converter for melting. output slag, matte and lead-ming alloy.
3. Lead dross alkaline melting of outputs lead pyrometallurgical refining slag secret Ca, Mg, and an NaOH melt, Ming output lead alloy.
4. Leaching a precipitation method to liquefy the copper converter soot to make the toughness into the solution, and then use the hydrolysis method or the displacement method to separate the secret precipitate, and then melt-cast into a rough
Second, refining
1. Fire refining The crude w is charged into a steel refining pot, and the copper, arsenic , antimony and tin are removed by processes such as refining and refining, oxidative refining, alkali refining, zinc refining, refining and refining, and final refining. , pounds, silver, lead, zinc and other impurities, produce refined tin.
2. Electrolytic refining and toughness is refined by preliminary fire method, and then cast into an anode plate, using an atmosphere salt solution or a silicic acid sulphate solution as an electrolyte to produce an electric bell, and then further refining to a fine sputum.
Fixed Frequency Air Compressor
This series electric screw Air Compressor is applicated for industy of Machinery , Chemical , Electric Power, Cement, Furniture, Construction Material...This range of compressor is equiped with name brand airend(screw) ,centrifugal cooling fan and touch screen controller, with direct drive, dust proof, sound proof design. VSD type is also available for this model , it can save energy of 30-35% , it can save more cost for enprise owner.
Power Fixed/Variable Frequency Speed Direct Driven Screw Air Compressor with Ce ISO Certificate 100-1200cfm/100-200psig Single/Twin Rotary Type Air Compressor
Unique Designed Save Energy High Efficiency Fixed Frequency Direct Air Compressor 315kw 430HP for sale
Fixed Frequency Direct Air Compressor 75kw 100HP Unique Designed Save Energy High Efficiency
Oil Free Water Lubricated Fixed Frequency Screw Air Compressor
Fixed Frequency Direct Air Compressor 45kw 60HP Unique Designed Save Energy High Efficiency
Power Fixed/Variable Frequency Speed Direct Driven Screw Air Compressor with CE Certificate 25-1000cfm/100-145psi Single/Twin Rotary Screw Type Air Compressor
Fixed Frequency Direct-Coupled Screw Air Compressor 110kw with Competitive Price
Heavy Duty Air Compressor General Electric Compressor /Frequency Converter Air Compressor/Fixed Air Compressor
Wholesale SEF Power Frequency Fixed Screw Air Compressor
High Pressure 60HP 45kw Fixed Speed Power Frequency Air Compressor
Power Fixed/Variable Frequency Speed Direct Driven Screw Air Compressor with Ce ISO Certificate 120-1200cfm/100-200psig Single/Twin Rotary Type Air Compressor
Power Fixed/Variable Frequency Speed Direct Driven Screw Air Compressor with CE ISO Certificate 100-1200cfm/100-200psig for sale in Africa south America countries
Electric Screw air compressor, fix speed type air compressor
Henan YikYui Prospecting Machinery Co., Ltd , https://www.yikyui-rig.com