METAL EXTRACTION METHOD USING ACIDOPHILIC THIOBACILLUS FERROOXIDANS

Title:

METAL EXTRACTION METHOD USING ACIDOPHILIC THIOBACILLUS FERROOXIDANS

Document Type and Number:

Japanese Patent JP2016054736

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide an efficient metal extraction method using organisms from a used electronic equipment part, such as a wasted electronic substrate.SOLUTION: An acidophilic thiobacillus ferrooxidans, Sulfobacillus thermosulfidooxidans NE106G strain, or a microbial mixture containing it is cultured with a dilute sulfuric acid culture medium, in which low concentration ferrous ion is added, and subsequently is brought into contact with a metal-containing electronic part, such as a wasted electronic substrate to extract and recover a valuable metal.SELECTED DRAWING: Figure 5

Inventors:

MIYATA NAOYUKI
TOJO FUYUMI
LIANG RUILU
FUKUSHIMA ATSUSHI
TANI YUKINORI

Application Number:

JP2015174284A

Publication Date:

April 21, 2016

Filing Date:

September 04, 2015

Export Citation:

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Assignee:

UNIV AKITA PREFECTURAL
SHIZUOKAKEN KORITSU DAIGAKU HOJIN

International Classes:

C12N1/20; B09B3/00; C12P3/00; C22B3/18; C22B7/00; C22B15/00; C22B17/00; C22B19/20; C22B23/00; C22B34/36; C22B47/00

Attorney, Agent or Firm:

Patent Service Corporation Patent Office Sykes

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