Title:
METHOD FOR RECYCLING ABRASIVE SLURRY
Document Type and Number:
WIPO Patent Application WO/2011/016996
Kind Code:
A3
Abstract:
Systems and methods are provided for processing abrasive slurry used in cutting operations such as slicing a water from a silicon ingot with a wive saw. The slurry is mixed with a first solvent in a tank. The slurry is vibrated and/or ultrasonically agitated such that abrasive grain contained in the slurry separates from the other components of the slurry and the first solvent. After the abrasive grain has settled to a bottom portion of the container, the other components of the slurry and the first solvent are removed from the tank. The abrasive grain may then be washed with a second solvent. The abrasive grain is then heated and is suitable for reuse in an abrasive slurry.
Inventors:
ERK HENRY F (US)
TANNA VANDAN (US)
TANNA VANDAN (US)
Application Number:
PCT/US2010/042750
Publication Date:
March 31, 2011
Filing Date:
July 21, 2010
Export Citation:
Assignee:
MEMC ELECTRONIC MATERIALS (US)
ERK HENRY F (US)
TANNA VANDAN (US)
ERK HENRY F (US)
TANNA VANDAN (US)
International Classes:
B28D5/00; B01D21/00; B01D21/28; B24B55/12; B28D1/02; B28D5/04; C01B33/00; C01B33/037; C10M175/00; F26B3/00
Domestic Patent References:
WO2005123888A1 | 2005-12-29 | |||
WO2000001519A1 | 2000-01-13 | |||
WO2009126922A2 | 2009-10-15 |
Foreign References:
US4313829A | 1982-02-02 | |||
EP0786317A2 | 1997-07-30 |
Other References:
DATABASE WPI Week 200420, Derwent World Patents Index; AN 2004-209032, XP002607634
Attorney, Agent or Firm:
MUNSELL, Michael, G. et al. (7700 Forsyth Blvd.Suite 180, St. Louis Missouri, US)
Download PDF:
Previous Patent: DISPLAYING IMAGE DATA AND GEOGRAPHIC ELEMENT DATA
Next Patent: ELECTRICAL PENETRATOR ASSEMBLY
Next Patent: ELECTRICAL PENETRATOR ASSEMBLY