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1. WO1991000369 - BIODEGRADATION AND RECOVERY OF GALLIUM AND OTHER METAL FROM INTEGRATED CIRCUITS

Publication Number WO/1991/000369
Publication Date 10.01.1991
International Application No. PCT/US1990/003667
International Filing Date 27.06.1990
Chapter 2 Demand Filed 25.01.1991
IPC
C12N 15/52 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
C12P 3/00 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
3Preparation of elements or inorganic compounds except carbon dioxide
C22B 3/18 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
18with the aid of microorganisms or enzymes, e.g. bacteria or algae
C22B 41/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
41Obtaining germanium
C22B 58/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
58Obtaining gallium or indium
CPC
C12N 15/52
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
C12P 3/00
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
3Preparation of elements or inorganic compounds except carbon dioxide
C12R 1/01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
RPROCESSES USING MICROORGANISMS
1Processes using microorganisms
01using bacteria or actinomycetales
C22B 3/18
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
18with the aid of microorganisms or enzymes, e.g. bacteria or algae
C22B 41/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
41Obtaining germanium
C22B 58/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
58Obtaining gallium or indium
Applicants
  • TECHNICAL RESEARCH, INC. [US/US]; 410 Chipeta Way Suite 222 Salt Lake City, UT 84108, US
Inventors
  • BOWERS-IRONS, Gail, L., A.; US
  • PEASE, John, R.; US
Agents
  • BAKER, Charles; Technical Research Inc. 410 Chipeta Way Suite 222 Salt Lake City, UT 84108, US
Priority Data
372,05827.06.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BIODEGRADATION AND RECOVERY OF GALLIUM AND OTHER METAL FROM INTEGRATED CIRCUITS
(FR) BIODEGRADATION ET RECUPERATION DU GALLIUM ET D'AUTRES METAUX PROVENANT DE CIRCUITS INTEGRES
Abstract
(EN)
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.
(FR)
La présente invention décrit un procédé pour lessiver certains composés métalliques (par exemple arséniure de gallium) contenus dans des circuits intégrés. Pour ce faire, on place ces derniers dans un bouillon de culture contenant des bactéries capables d'en lessiver les composés métalliques. Les bactéries utilisées sont de préférence les ATCC 53921, leurs mutations et leurs recombinants. Les circuits intégrés sont généralement broyés pour atteindre entre 20 et 400 mailles avant d'être placés dans le bouillon de culture bactérien.
Also published as
Latest bibliographic data on file with the International Bureau