High Efficiency Refining Lead Melting Kettle

High Efficiency Refining Lead Melting Kettle

Product description:

Lead pot / kettle is used for lead bullion refining, to remove Cu, Sn and recover Ag. The lead product purity is 99%~99.94%. The dust in the off-gas will be back to reverberatory furnace, so the Pb recover rate is above 98%.

Product advantages:

• Simple structure and low cost;
• Compact installation configuration;
• Qualified pure Lead products based on lead bullion composition and client requirement.;
• Completed system can be designed based on site condition

Company advantage:

• We can customized according to your production capacity and other requirement, The capacity ranges from 10MT to 160MT. 
• We can do both desginning work and manufactuer work.
• We have exports this kind of lead pots / kettle to many countries including Algeria, Sri Lanka,Egypt,Tunisia,Thailand,India ,Myanmar and so on. We have enough experience to save your cost on delivery.

Working Principle

• Cu removal: When the lead bullion is heated to 330~350°C, adding Sulphur or pyriteis to remove Cu as CuS flotation slag;
• As, Sb, and Sn removal: Air or oxygen is injected into the lead pot to oxidizethe As, Sb, Sn, then the oxides will react with sodium hydroxide, and finally be removed as sodium salt;
• Ag removal: Zn is added to combine Ag as solid metal compound whose melting point is higher than lead. So we can remove and recover Ag from lead;
• Zn removal: the main equipment is refining lead pot with closed water cooler which connects with vacuum facilities. When heating under vacuum, the Zn steam will evaporate from lead liquid, and then be cooled into solid Zinc;
• Bi removal: Ca and Mg are added to combine Bi as solid metal compound which will be separated from lead liquid;
• Final refining: Air or NaNO3 will be added, then the residual Ca, Mg will form slag, and finally be remove.

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.

 Why choose Unionsum 

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 

 Global Market 

                                            Vacuum distillation project at Bulgaria                                           Rotary Furnace at Thailand                                        

 Contact information 

Skype: annaqiujingyu

M.P: 86-13762311254

Web:           http://unionsum.en.china.cn

Add: 3F, Yubang International Plaza, No.222, Xinyao Road (S),

Tianxin District, Changsha, Hunan, China