Zinc Dross

Recovery & Purification 

Tin-Lead & Tin-Lead-Antimony Separation

Purification Refining of

Pb, Sb, As, Sn

Indium & Zinc

Multi - Purpose 

Recovery & Purification

The Elements

VDU Feed Materials

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 

Diboo and IAT are now producing and selling high Purity SnS material (SnS>99%-99.99%)