METHOD FOR RECOVERING ABRASIVE MATERIAL COMPONENT FROM USED ABRASIVE MATERIAL SLURRY, AND CERIUM OXIDE RECOVERED THROUGH METHOD

Title:

METHOD FOR RECOVERING ABRASIVE MATERIAL COMPONENT FROM USED ABRASIVE MATERIAL SLURRY, AND CERIUM OXIDE RECOVERED THROUGH METHOD

Document Type and Number:

WIPO Patent Application WO/2012/101868

Kind Code:

A1

Abstract:

Provided is a method for recovering an abrasive material component from used slurry having cerium oxide as the principal component of the abrasive material therein, the abrasive component recovery method being one in which post-recovery treatment of the abrasive agent and waste liquid is easy. Also provided is cerium oxide recovered through the novel recovery method. A method for recovering an abrasive material component from used abrasive slurry containing cerium oxide in the abrasive material thereof is characterized in that the abrasive material component is recovered by: adding a magnesium salt to the used abrasive slurry; coagulating the abrasive material component and causing the same to sediment from the abrasive slurry, which contains the abrasive material component and components derived from the material subjected to abrasion; and separating the solids and liquids.

Inventors:

TAKAHASHI ATSUSHI (JP)
NAGAI YUUKI (JP)
MAEZAWA AKIHIRO (JP)

Application Number:

PCT/JP2011/072476

Publication Date:

August 02, 2012

Filing Date:

September 29, 2011

Export Citation:

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Assignee:

KONICA MINOLTA HOLDINGS INC (JP)
TAKAHASHI ATSUSHI (JP)
NAGAI YUUKI (JP)
MAEZAWA AKIHIRO (JP)

International Classes:

B24B57/00; C01F17/235; C09K3/14; B24B55/12

Foreign References:

JP2000254659A	2000-09-19
JP2004237163A	2004-08-26
JP2004216352A	2004-08-05
JPH06254764A	1994-09-13
JPH1190825A	1999-04-06
JPH1150168A	1999-02-23

Other References: