Process for reclaiming a grinding suspension

Details Process for reclaiming a grinding suspension Process for reclaiming a grinding suspension

1998-10-01

2000-01-04

Walsh, Donald P.

Classifying, separating, and assorting solids

Plural, diverse separating operations

209 11, 209 3, B03B 700, B03B 100

Patent

active

060100109

ABSTRACT:
A process for reclaiming a consumed grinding suspension which has been used for machining silicon, quartz or ceramic is made from a cutting fluid, in which abrasive grain and abraded material are dispersed. In a first process step, the grinding suspension is carefully separated, by means of a drying step, into a solid component and a liquid component. In a second process step, the solid component is separated into abrasive grain and abraded material by a separation method.

REFERENCES:
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patent: 4190422 (1980-02-01), Hitzrot, Jr.
patent: 5470466 (1995-11-01), Schaaf
patent: 5520288 (1996-05-01), Drenter et al.
patent: 5647989 (1997-07-01), Hayashi et al.
patent: 5830369 (1998-11-01), Toyama
Derwent Abstract (#92-285668[35]) Corresponding to EP 0 502 461.
Derwent Abstract (#96-499183[50]) Corresponding to EP 0 742 079.
Patent Abstracts of Japan vol. 14, No. 119 (M-945 +JP 01 316170 A (Osaua Titanium).
Patent Abstracts of Japan (#M-945, Mar. 6, 1990, vol. 14/No. 119).

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