公开(公告)号：WO1991000369A1

公开(公告)日：1991-01-10

申请号：PCT/US1990003667

申请日：1990-06-27

Applicant: TECHNICAL RESEARCH, INC.

Inventor： TECHNICAL RESEARCH, INC. ,  BOWERS-IRONS, Gail, L., A. ,  PEASE, John, R.

IPC: C22B30/04

CPC classification number: C12R1/01 ,  C12N15/52 ,  C12P3/00 ,  C22B3/18 ,  C22B41/00 ,  C22B58/00 ,  Y02P10/234

Abstract: Disclosed is a process for leaching selected metal compounds (e.g. gallium arsenide) from integrated circuits containing those compounds. The method includes placing the integrated circuits into a culture medium containing bacteria. Bacteria capable of leaching the metal compounds from the integrated circuits leach metals from the integrated circuits. The bacteria preferably used will be ATCC 53921 and mutations and recombinants thereof. The integrated circuits are generally crushed to between 20 and-400 mesh before placement into the culture medium containing bacteria.

公开(公告)号：WO1991003424A1

公开(公告)日：1991-03-21

申请号：PCT/US1990004977

申请日：1990-08-31

Applicant: TECHNICAL RESEARCH, INC.

Inventor： TECHNICAL RESEARCH, INC. ,  BOWERS-IRONS, Gail, L., A. ,  PEASE, John, R. ,  TRAN, Quynh, K. ,  GIBB, Tracy ,  PRYOR, Robert, J. ,  HADDAD, Sandra

IPC: C01G17/00

CPC classification number: C12N15/52 ,  C12P3/00 ,  C12R1/01 ,  C22B3/18 ,  C22B13/04 ,  C22B19/20 ,  C22B25/04 ,  C22B41/00 ,  C22B58/00 ,  Y02P10/234 ,  Y10S423/17

Abstract: A high temperature process for leaching selected metal compounds, such as gallium or germanium, from ores containing those selected metal compounds is disclosed. The method generally includes contacting metal-containing ores with an admixture of nutrient medium and bacteria capable of leaching selected metal compounds contained in the ore. Preferably, bacteria designated as ATCC 53921 are used in the method. The ore is typically crushed prior to contacting it with the admixture, and the process is carried out at between 62 DEG C and 75 DEG C and at a pH of between 1.0 and 2.5. The method presents a novel process for recovering valuable metals from ores which are otherwise difficult or impossible to recover. Metals which are particularly recoverable using the present method are germanium, gallium and mixtures thereof.

Abstract translation: 公开了一种用于从含有这些选择的金属化合物的矿石中浸出所选择的金属化合物如镓或锗的高温方法。 该方法通常包括使含金属矿石与营养培养基和能够浸出矿石中所含金属化合物的细菌的混合物接触。 优选地，在该方法中使用指定为ATCC 53921的细菌。 矿石通常在与混合物接触之前被粉碎，并且该方法在62℃至75℃之间和在1.0至2.5之间的pH下进行。 该方法提出了从矿石中回收有价值的金属的新方法，否则其难于或不可能恢复。 使用本方法特别可回收的金属是锗，镓及其混合物。