Main Feature
English
Vacuum Metallurgy Technology refers to the metallurgical process carried out under conditions below 1 atmosphere to ultra-high vacuum, including the smelting, purification, refining, molding and processing of metals and alloys.
Principle:
a) The application of vacuum metallurgy technology in comprehensive recovery mainly utilizes the difference in boiling point and saturated vapor pressure between elements to separate, purify and refine substances under certain temperature and vacuum conditions
b) Due to the difference in saturated vapor pressure of metals and their compounds under vacuum environment and the ease of gasification of substances in vacuum, metals and their compounds with low boiling points evaporate first before metals and their compounds with higher boiling points, thereby achieving the purpose of separation and purification from each other.
1) The removal of lead, bismuth and antimony reduces the blowing amount and slag production of the silver separation furnace;
2) The equipment has a large production capacity, which shortens the production cycle of the silver separation process, thereby increasing the output speed of silver;
3) Lead, bismuth and antimony are produced in the form of alloys. Depending on the content of the components, they can be directly subjected to high-bismuth lead electrolysis or antimony removal processes;
4) The direct recovery rate of vacuum treatment elements is generally improved, the mechanical adhesion loss is small, and the comprehensive metal recovery rate is also high.
Based on theoretical research, TOMINE’S vacuum distillation process for complex tin alloys was invented, which solved the problem of clean and efficient comprehensive recovery of valuable metals such as tin, lead, bismuth, antimony, zinc and arsenic from complex tin alloys such as tin-lead, tin-zinc, tin-lead-antimony, tin-lead-antimony-arsenic and crude tin.
| Feed Materials Code | |
| | |
| 1. Pb-Sn alloy | |
| Raw Material Requirements: any component Pb-Sn alloy. | |
| Product Technical Index: | |
| ① Sn Product: Pb<0.005% | |
| ② Pb Product: Sn<0.02-0.3% | |
| Capacity: 20-45 tons/d. | |
| 2. Bi-Sn alloy | |
| Raw Material Requirements: any component Bi-Sn alloy. | |
| Product Technical Index: | |
| ① Sn Product: Bi<0.001% | |
| ② Bi Product: Sn<0.02-0.3% | |
| Capacity: 20-45 tons/d. | |
| 3. Pb-Bi-Sn alloy | |
| Raw Material Requirements: any component Pb-Bi-Sn alloy. | |
| Product Technical Index: | |
| ① Sn Product: Pb<0.005%, Bi<0.001% | |
| ② Pb-Bi alloy Products: Sn<0.02-0.3% | |
| Capacity: 20-45 tons/d. | |
| 4. Pb-Sb-Sn alloy | |
| Raw Material Requirements: Sb<20%, balance: Sn and Pb. | |
| Product Technical Index: | |
| ① Sn Product: Pb<0.005%, Sb<0.02% | |
| ② Pb-Sb Alloy Product: Sn<0.3% | |
| Capacity: 10-20 tons/d. | |
| 5. Pb-Sb-Sn containing As | |
| Raw Material Requirements: Sb<20%, As<3%, balance: Sn and Pb. | |
| Product Technical Index: | |
| ① Sn Product: Pb<0.005%, Sb<0.02%, As<0.01% | |
| ② Pb-Sb alloy Product: Sn<0.3% | |
| ③ As Product: As>90% | |
| Capacity: 10-20 tons/d. | |
| 6. Pb-Sb-Sn alloy contains Ag | |
| Raw Material Requirements: Sb<20%, Ag0.1-5%, balance: Sn and Pb. | |
| Product Technical Index: | |
| ① Sn Product: Pb<0.005%, Sb<0.02%, Ag<0.05% | |
| ② Pb-Sb Alloy Product: Sn<0.3%, Ag<0.01% | |
| ③ Ag Product: Sb<1-20%, Sn<1% | |
| Capacity: 5-10 tons/d. | |
| 7. Sn-Sb alloy | |
| Raw Material Requirements: Sb20-70%, Pb<10%, balance: Sn. | |
| Product Technical Index: | |
| ① Sn Product: Sb<0.1% | |
| ② Sb Product: Sn<0.3%, balance: Pb and Sb | |
| Capacity: 1-10 tons/d. | |
| 8. Sn-In alloy | |
| Raw Material Requirements: In-1-20%, balance: Sn. | |
| Product Technical Index: | |
| ① Sn Product: In<0.02% | |
| ② In Product: Sn<0.01% | |
| Capacity: 0.1-3 tons/d. | |
| 9. Sn-Ag alloy | |
| Raw Material Requirements: Ag5-20%, balance: Sn. | |
| Product Technical Index: | |
| ① Sn Product: Ag<0.05% | |
| ② Ag Product: Sn<1% | |
| Capacity: 500Kg/batch·24hrs. | |
| 10. Sn-In-Pb-Sb-As alloy | |
| Raw Material Requirements: As0.5-30%, Sb1-10%, balance: In, Sn and Pb. | |
| Product Technical Index: | |
| ① Pb Product: In<0.05%, Sn<0.05% | |
| ② In Product: In>80% | |
| ③ Sn Product: In<0.1% | |
| ④ As Product: As>90% | |
| Capacity: 1 ton/batch·24hrs. | |
| 11. Precious Pb alloy | |
| Raw Material Requirements: Ag0.5-20%, Pb30-50%, Bi5-15%, Cu1-20%, Sb1-20% | |
| Product Technical Index: | |
| ① Ag Product: Ag>50% | |
| ② Pb-Bi Alloy Product: Ag<0.005% | |
| Capacity: 1-10 tons/d. | |
| 12. Precious Bi alloy | |
| Raw Material Requirements: Ag0.5-20%, Pb10-20%, Bi60-80% | |
| Product Technical Index: | |
| ① Ag Product: Ag>60% | |
| ② Pb-Bi Alloy Product: Ag<0.005% | |
| Capacity: 10-15tons/d. | |
| 13. Removal of Ag and Cu from crude Pb and crude Bi. | |
| Raw Material Requirements: Pb(Bi)>98%, Cu<0.5%, Ag<0.5% | |
| Product Technical Index: | |
| ① Pb Product: Ag<40g/t, Cu<10g/t | |
| ② Bi Product: Ag<20g/t, Cu<5g/t | |
| ③ Pb(Bi)-Cu-Ag Alloy Product: Recovery of Ag by VDU as precious Pb(Bi) via multiple passes. | |
| Capacity: 10-15tons/d. | |
| 14. Ag-Cu-Pb(Bi) alloy | |
| Raw Material Requirements: Cu1-20%, Ag0.5-5%, balance: Pb, Sb and Bi. | |
| Product Technical Index: | |
| ① Pb(Bi) Product: Ag0.5-2%, Cu<0.5%, balance: Pb(Bi) (Recovery of Ag by VDU again.) | |
| ② Cu-Ag Alloy Product: Pb(Bi)<1%, Ag1-20%, balance: Cu and Sb (Recovery of Ag by VDU again.) | |
| Capacity: 800Kg/batch·12hrs. | |
| 15. Cu-Ag alloy | |
| Raw Material Requirements: Ag5-90%，Cu5-90%, Pb<1%, Bi<1%, Sb<15% | |
| Product Technical Index: | |
| ① Ag Product: Cu<1% (Then get pure Ag by electrolysis.) | |
| ② Cu Product: Ag<0.5% (Then get pure Cu and recover Ag by electrolysis.) | |
| Capacity: 800Kg/batch·12hrs. | |
| 16. Ag-Zn slag alloy | |
| Raw Material Requirements: Ag1-20%, Cu1-10%, Zn20-30%, balance: Pb and Bi. | |
| Product Technical Index: | |
| ① Ag Product: Ag60-95% | |
| ② Pb-Bi Alloy Product: Ag<2% | |
| Capacity: 500Kg/batch·12hrs. | |
| 17. Zn-Fe alloy | |
| Raw Material Requirements: hot galvanizing slag; hard zinc (Zn>80%) | |
| Product Technical Index: | |
| ① Zn Product: Zn>99%, Fe<0.003% | |
| ② Fe-Al slag: Zn<5% | |
| Capacity: 2-3 tons/d. | |
| 18. Zn(Cd)-Sn alloy | |
| Raw Material Requirements: any component Zn(Cd)-Sn alloy | |
| Product Technical Index: | |
| ① Zn(Cd) Product: Zn>99%, Sn<0.01% | |
| ② Sn Product: Zn<0.5% | |
| Capacity: 800Kg/batch·12hrs. | |
| 19. Continuous Vacuum Refining of Crude Cadmium | |
| Raw Material Requirements: Cd>97% | |
| Product Technical Index: | |
| Pure Cd Product: Cd>99.995% | |
| Capacity: 2 tons/d. | |
| 20. Continuous Vacuum Refining of Crude Indium | |
| Raw Material Requirements: impurities in crude In: Cd<1%, Pb<100ppm, Tl<100ppm, Zn<100ppm | |
| Product Technical Index: | |
| ① Sn Product: 99.99% | |
| ② Crude In Product: Cd<5ppm, Pb<30ppm,Tl<30ppm, Zn<5ppm | |
| Capacity: 3-5 tons/d. | |
| 21. Recovery of Sn and In from waste ITO metal | |
| Raw Material Requirements: waste ITO | |
| Product Technical Index: | |
| Pure Sn Product: Sn>99% | |
| Pure In product: In>99.9% | |
| Capacity: 100-300 Kg/d. | |
| 22. Crude Se refining. | |
| Raw Material Requirements: Crude Se | |
| Product Technical Index: | |
| Pure Se Product: Se>99% | |
| Capacity: 0.5-1.5 tons/d. | |
| 23. Removal of Sulfur Dross from copper by adding sulfur in crude tin refining process. | |
| Raw Material Requirements: Sulfur Dross | |
| Product Technical Index: | |
| Products: SnS, PbS, CuS | |
| Capacity: 1-2 tons/d. | |
| 24. High Purity SnS materials | |
| Producing and selling high Purity SnS material (SnS>99%-99.99%) | |
