how to process lead ore
Lead ore smelting process
Most of the raw material is lead smelting lead sulfide concentrate , a small part of the lead-zinc oxide ore , which contained almost the price of the metal can be recycled in the smelting process . China lead sulfide concentrates often contain less valuable metals : lead, zinc, copper , arsenic , antimony, bismuth , cadmium , mercury, gold, silver, selenium, tellurium , indium, germanium, thallium . During the sintering process , more than 95 % of the mercury entering the flue gas ;
70 percent thallium , from 30 to 40% of cadmium, selenium, tellurium, and a small portion of arsenic, antimony, bismuth and other metals into the dust ; rest back and remain in the sintered cakes powder . In the blast furnace process, almost all of the gold, silver and most of the copper , arsenic , antimony, bismuth , tin, selenium, tellurium into crude lead , more than 95 % zinc , germanium, indium into more than 50 % of the slag, 80 ~ 90% of cadmium into the smoke . Pyrometallurgical refining process in the initial , crude lead in copper , tin, indium most dross into gold, silver , bismuth, lead and other metals remain in the . In the lead electrolytic refining process , than lead to correct electrical resistance of metals such as gold, silver, copper , antimony , bismuth, arsenic , selenium, tellurium , which do not dissolve and remain in the anode mud , more negatively charged metal such as iron, zinc than lead , nickel, cobalt and lead a dissolution into the electrolyte , the cathode but not precipitated.
After the primary lead smelting crude was further refined, there are two kinds of fire and wet methods. The world to fire based method, wet lead smelting still in the testing stage. Foreign to fire based method, our main electrolytic refining. Electrolysis is characterized by better recovery of gold, silver, bismuth and other valuable metals, and get pure electric lead. Fire refining are more flexible and can be produced according to the needs of the impurities in crude lead the organization and market conditions, investment and save.
Lead ore beneficiation process
Lead ore can be divided into several different types. Using different processing methods and processing equipment according to the different types of booze required to process the ore. Lead ore beneficiation methods gravity separation, flotation method, re-election – a variety of different types of flotation combined method.
To re-elect a beneficiation method is carried out according to the different materials sorting difference in specific gravity. Proportion of Lead ore was 11.34, the proportion of waste rock between 2.3-3, between the two has a larger proportion of poor, so to take advantage of re-sorting equipment for sorting, and can achieve good results.
But the re-election have to consider the problem of dissemination size, the monomer solution for coarse, medium-grained disseminated in Lead ore, through simple crushing (to use more jaw crusher) can be achieved from galena, and then re-election on able to achieve good results. For fine disseminated Lead ore, it must go through the grinding mill monomer dissociation can be achieved, the next step of re-election.
Specific process is: After crushing ore into the hopper, electromagnetic vibrating feeder hopper located beneath the coarse ore even after breaking into the rod mill to be ground in order to break even with the body results achieved lead and waste rock monomer dissociation, after grinding the ore jigging machine for gravity separation and, ultimately, lead concentrate and tailings.
Lead ore re-election method is mainly applied to coarse-grained galena disseminated sulfide Lead ore beneficiation process is simple, small investment cost, easy equipment repair and maintenance. Beneficiation indicators is satisfactory, Lead ore beneficiation methods is the most simple and effective one.If you have any questions about how to deal with lead ore information, please contact us for further contact, for more information on lead ore flotation, flotation equipment, crushing equipment, milling equipment handling.