Technology for extracting indium from indium-rich bottom lead
The invention relates to a technique of extracting indium from indium-rich bottom lead, which comprises steps as follows: firstly, the indium-rich bottom lead is melt down and cast into an anode plate, while a stainless-steel plate or a refined lead plate is used as a cathode, and electrolysis is co...
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| creator | ZUO XINTIAN LIU WEI LAI FUXING LU BOKANG TANG MOTANG TANG CHAOBO FENG KAIHANG HE JING YANG SHENGHAI HAN YI WANG JIAN ZHANG PENG CHEN YONGMING WU BINXIU WU CHENGCHUN LU JUNLE |
| description | The invention relates to a technique of extracting indium from indium-rich bottom lead, which comprises steps as follows: firstly, the indium-rich bottom lead is melt down and cast into an anode plate, while a stainless-steel plate or a refined lead plate is used as a cathode, and electrolysis is conducted in a silicofluoric acid system; secondly, lead is electrolyzed out of the anode and into an electrolyte solution, and electrolytic lead is precipitated from the cathode; thirdly, indium is dissolved along with the lead and retained in the electrolyte solution, from which the indium is extracted with P204, and the indium is re-extracted with hydrochloric acid to obtain an indium-rich re-extracting solution, a pH value thereof is regulated and then sponge indium is obtained through aluminum plate replacement, and rude indium is obtained through conventional pressing and flake caustic casting of the sponge indium. The technique can effectively recover the indium while directly obtaining the electrolytic lead p |
| format | Patent |
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secondly, lead is electrolyzed out of the anode and into an electrolyte solution, and electrolytic lead is precipitated from the cathode; thirdly, indium is dissolved along with the lead and retained in the electrolyte solution, from which the indium is extracted with P204, and the indium is re-extracted with hydrochloric acid to obtain an indium-rich re-extracting solution, a pH value thereof is regulated and then sponge indium is obtained through aluminum plate replacement, and rude indium is obtained through conventional pressing and flake caustic casting of the sponge indium. 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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Technology for extracting indium from indium-rich bottom lead |
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