SEPARATION RECOVERY METHOD OF PLATINUM GROUP METAL

Title:

SEPARATION RECOVERY METHOD OF PLATINUM GROUP METAL

Document Type and Number:

Japanese Patent JP2015227474

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a separation recovery method which enables mutual separation and recovery of platinum and palladium, as metal particles, from a raw material solution containing platinum ion and palladium ion by a low-energy type (low environmental load type) simple treatment.SOLUTION: A separation recovery method of platinum group metals includes a first bio-reduction step of adding a metal ion reducing bacterium to a first reaction solution containing a raw material solution, a metal ion reducing bacterium and an electron donor to reduce platinum ion and thereby precipitate platinum, a first recovery step of recovering platinum precipitated by the first bio-reduction step, a second bio-reduction step of adding a metal ion reducing bacterium to a second reaction solution after the first recovery step to reduce palladium ion and thereby precipitate palladium, and a second recovery step of recovering palladium precipitated by the second bio-reduction step from the second reaction solution.

More Like This:

JP7386519	Pretreatment method, platinum group metal extraction method, and platinum group metal extraction system
JP6735702	Method for recovering precious metal from hydrochloric acid acidic Sn-containing noble metal catalyst recovery solution
JP2011513583	Selective Gold Extraction from Copper Anode Slime with Alcohol

Inventors:

KONISHI YASUHIRO
SAITO NORIZO
NOBORI MISAO

Application Number:

JP2014112461A

Publication Date:

December 17, 2015

Filing Date:

May 30, 2014

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNIV OSAKA PREFECTURE
HIDAKA FINE TECHNOLOGIES CO LTD

International Classes:

C22B11/00; C12P3/00; C22B3/44

Domestic Patent References:

JP2012107294A	2012-06-07
JP2014201821A	2014-10-27
JP2011113788A	2011-06-09
JP2013005794A	2013-01-10
JP2007113116A	2007-05-10
JP2014037591A	2014-02-27
JP2014234551A	2014-12-15
JP2016183371A	2016-10-20

Foreign References:

US20100184179A1	2010-07-22
WO2015049959A1	2015-04-09
WO2015099189A1	2015-07-02

Attorney, Agent or Firm:

Fukami patent office

Previous Patent: METHOD FOR PRODUCING GREEN LIGHT-EMITTING PHOSPHOR PARTICLES

Next Patent: LEAD-FREE FREE-CUTTING BRONZE ALLOY FOR CASTING