| 发明名称 |
METHOD OF SECONDARY LEAD-BEARING STOCK PROCESSING FOR EXTRACTION OF SILVER |
| 摘要 |
FIELD: metallurgy.SUBSTANCE: method of pyrometallurgical extraction of silver from secondary lead-bearing stock comprises stock furnacing in two steps. First, lead-bearing stock is furnaced at 1150-1200°C, the melt being cooled to 400°C at the rate of 1950°C/h to 2050°C/h. Then, the melt is heated from 400°C/h to 500°C/h to 1150-1200°C to remove the yellow lead from silver surface.EFFECT: higher yield of silver.1 tbl, 3 ex |
| 申请公布号 |
RU2515414(C1) |
申请公布日期 |
2014.05.10 |
| 申请号 |
RU20130111291 |
申请日期 |
2013.03.14 |
| 申请人 |
FEDERAL'NOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "NATSIONAL'NYJ ISSLEDOVATEL'SKIJ TEKHNOLOGICHESKIJ UNIVERSITET "MISIS" |
发明人 |
STRIZHKO LEONID SEMENOVICH;KOTYKHOV MIKHAIL IGOREVICH;TRESHCHETENKOV EVGENIJ EVGEN'EVICH;TRESHCHETENKOVA IRINA LEONIDOVNA;KHAJRULLINA RIMMA TALGATOVA;SHIGIN EVGENIJ SERGEEVICH |
| 分类号 |
C22B11/02;C22B7/00 |
主分类号 |
C22B11/02 |
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