Zinc Residue Recovery Vacuum Distillation Furnace
Zinc residue recovery vacuum distillation furnace
Vacuum distillation furnace is a newly developed distillation furnace by Unionsum.Now it is widely used by customer to recover Sn, Sb, Bi, Ag, and Cd from drosses from refining process, slag, Lead eletro-refining anode slime, Copper eletro-refining anode slime and so on. Its main power is that it can separate Sn, Zn, Ag, Pb and Sb from each other when they are in the alloy.
Decrease boiling point of metals in alloy under vacuum condition to distil & purify each low boiling point(≤2000°C) metal from alloy and leave & purify high boiling point metals Produce liquid metal or nanoscale powder by control of the condensation speed.
- Bi-Ag-Zn slag, Pb-Ag-Zn slag distillation
Bi-Ag-Zn slag, Pb-Ag-Zn slag from adding Zn to removal Ag process for Bi /Pb fire-refining process can go through vacuum distillation process to separate Bi-Zn or Pb-Zn from rich Ag residue.
- Pb/Cu floating slag treatment
Pb/Cu floating slag from Cu removal process for Pb (95~98%) fire-refining can go through vacuum distillation process to separate Pb from Copper matte (Pb≤2%).
- Ag recovery from Lead anode slime and Copper anode slime
Pb anode slime with precious metal (Au/Ag), or crude rich Lead from reduction smelting, can be through vacuum distillation process to separate Pb/Sb/Bi from rich Au/Ag residue.
- Pb secondary material distillation
Pb secondary material can go through vacuum distillation process to separate Pb/Sb/Bi from Sn/Cu/Ag/Au residue.
- Spent Cd-Ni battery pollution-free recycling
Cd-Ni batteries can go through comprehensive process to produce stainless steel and Cd ingot (99.998%).
- High pure Zn ingot distillation
Zn ingot (98%) can go through distillation process to produce high pure Zn ingot (99.999%).
- Valuable metals enrichment from hard Zinc
Hard Zinc can go through distillation process to produce Zn (99.5%), remove Fe / Pb, and enrich Ag/Ge/Im.
- High-pure super-fine Zn powder
Zn (90~99%) can go through distillation process to produce high-pure super-fine Zn powder (99.99%, 2~15μm).
- Hot galvanizing Zn residue distillation
Hot galvanizing Zn residue (Zn/Fe/Al alloy) can go through distillation process to produce Zn ingot/powder (99.99%) and Al residue.
- Example process
- Low energy consumption, 600~800kwh/MT raw materials
- High purity of metal product, ≥99.95%
- Can produce liquid metal and solid metal powder
- Large capacity, single furnace 10t/d, continuous or batch shift
- No off-gas, environmental friendly, hygiene working
- Automatically operation
- Low infrastructure cost, less construction area
Unionsum offer experience center in Hunan province, which can supply customers a different consumption patterns, it means distillation test experience for metals of boiling point under 2000°C before order.


Unionsum, a subsidiary of CRIMM, provides sustainable system solution for mining and
metallurgy industry, including engineering, procurement and construction, and offers a widerange of
scientific research and consultingservices.
Mining and Metallurgy Experts
History from 1953
Most authoritative and comprehensive organization in China mining and metallurgy industry
2 academicians of China Engineering Academy, 108 professors and 500 senior engineers
50 Laboratories and Pilot Plants (2 state key Labs)
Decades experiences in research and engineering service
Qualifications
Clients Visiting


Contact information
Skype: claire.zhou
M.P: 86-18890384660
Web: http://unionsum.en.china.cn
Add: 3F, Yubang Internation Plaza, No.222, Xinyao Road (S),
Tianxin District,Changsha, Hunan, China
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