发明名称 |
METHOD OF HEAP BACTERIAL LEACHING OF SULPHIDE CONTAINING PRODUCTS |
摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to hydro-metallurgical production and can be implemented at heap leaching of suplhide products, containing various non-ferrous and precious metals. The method includes leaching of sulphide containing ore stacked in a heap on a water impregnable base with water solution, containing sulphuric acid of concentration 2-10 g/l, trivalent iron ions 1-20 g/l and iron oxidising bacteria with microelements. Regeneration of bivalent iron is performed in a liquid phase of leaching in a separate assembly; it is performed by means of iron oxidising bacteria with aeration with ozone-air mixture at concentration of ozone 0.5-5 mg/l and consumption 0.1-1 l per litre of a treated liquid phase in a minute and at pH 1.5-2.2. ^ EFFECT: increased degree of metal extraction out of sulphide containing product and increased rate of leaching. ^ 4 cl, 2 ex |
申请公布号 |
RU2336341(C1) |
申请公布日期 |
2008.10.20 |
申请号 |
RU20070113937 |
申请日期 |
2007.04.16 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "MOSKOVSKIJ GOSUDARSTVENNYJ INSTITUT STALI I SPLAVOV" (TEKHNOLOGICHESKIJ UNIVERSITET);OTKRYTOE AKTSIONERNOE OBSHCHESTVO "MOSKOVSKIJ KOMITET PO NAUKE I TEKHNOLOGIJAM" |
发明人 |
KRYLOVA LJUBOV' NIKOLAEVNA;PANIN VIKTOR VASIL'EVICH |
分类号 |
C22B3/18;C22B15/00 |
主分类号 |
C22B3/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|