METHOD FOR RECOVERING Ru COMPLEX DYE FROM USED DYE SOLUTION

Title:

METHOD FOR RECOVERING Ru COMPLEX DYE FROM USED DYE SOLUTION

Document Type and Number:

WIPO Patent Application WO/2014/077230

Kind Code:

A1

Abstract:

The present invention is a method for recovering Ru complex dye from a used dye solution containing a polypyridine Ru complex as a Ru complex, the used dye solution having been discharged from a step for manufacturing a dye-sensitized solar cell, wherein the method comprises the following steps. Step (a): a step for filtering the used dye solution to separate and remove solid content. Step (b): a step for bringing a separating solvent composed of an ether-based solvent indicated by the chemical formula CxH(2x+1)-O-CyH(2y+1) (x = 1 to 4, y = 1 to 4, where x + y ≥ 4) or an alkane-based solvent indicated by the chemical formula CxH(2x+2) (x = 5 to 7) into contact with the used dye solution to separate the Ru complex dye.

More Like This:

JP6300380	Amino-triazolyl-body pie compounds with high Stokes shift and application to live neuron staining and human serum albumin FA1 drug site probing
JP5633370	Dinuclear ruthenium complex dye, ruthenium-osmium complex dye, photoelectric conversion element having the complex dye, and photochemical cell
WO/2013/089194	DIRUTHENIUM COMPLEX DYE, PHOTOELECTRIC CONVERSION ELEMENT INCLUDING SAID DYE, AND PHOTOCHEMICAL CELL

Inventors:

INOUE KENICHI (JP)
SATO HIROKI (JP)
SAITO MASAYUKI (JP)

Application Number:

PCT/JP2013/080497

Publication Date:

May 22, 2014

Filing Date:

November 12, 2013

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TANAKA PRECIOUS METAL IND (JP)

International Classes:

C09B57/10; B01D11/02; C09B67/54; H01L31/04; H01M14/00

Domestic Patent References:

WO2012070181A1

2012-05-31

Foreign References:

JP2011048938A	2011-03-10
JP2010159340A	2010-07-22
JP2009215539A	2009-09-24
JP2011513530A	2011-04-28

Other References: