Title:
METHOD OF RECOVERING ABRASIVE FROM ABRASIVE SLURRY WASTE LIQUID AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2008/020507
Kind Code:
A1
Abstract:
Not only small-diameter foreign matter but also large-diameter foreign matter
mixed in polishing is effectively removed from an abrasive slurry waste liquid
to thereby attain recovery of abrasive. Recovery of abrasive from an abrasive
slurry waste liquid is accomplished by the use of a recovery apparatus comprising
a high pressure jet disperser machine capable of mutual collision of abrasive
slurry waste liquids as high pressure jet streams in a dispersion vessel; an ultrasonic
strainer capable of, while applying ultrasonic waves to the dispersion liquid
obtained by dispersion by means of the high pressure jet disperser machine and/or
a barrier filter, straining the dispersion liquid through the barrier filter;
and a cyclone capable of classifying of the filtrate liquid obtained by straining
by means of the ultrasonic strainer.
Inventors:
NAKAMURA, Hideo (Limited 12-1, Yurakucho1-chome, Chiyoda-k, Tokyo 05, 1008405, JP)
中村 英生 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 1008405, JP)
KOBAYASHI, Katsuhiro (Limited 12-1, Yurakucho1-chome, Chiyoda-k, Tokyo 05, 1008405, JP)
中村 英生 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 1008405, JP)
KOBAYASHI, Katsuhiro (Limited 12-1, Yurakucho1-chome, Chiyoda-k, Tokyo 05, 1008405, JP)
Application Number:
JP2007/062046
Publication Date:
February 21, 2008
Filing Date:
June 14, 2007
Export Citation:
Assignee:
ASAHI GLASS COMPANY, LIMITED (12-1, Yurakucho 1-chome Chiyoda-k, Tokyo 05, 1008405, JP)
旭硝子株式会社 (〒05 東京都千代田区有楽町一丁目１２番１号 Tokyo, 1008405, JP)
NAKAMURA, Hideo (Limited 12-1, Yurakucho1-chome, Chiyoda-k, Tokyo 05, 1008405, JP)
中村 英生 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 1008405, JP)
旭硝子株式会社 (〒05 東京都千代田区有楽町一丁目１２番１号 Tokyo, 1008405, JP)
NAKAMURA, Hideo (Limited 12-1, Yurakucho1-chome, Chiyoda-k, Tokyo 05, 1008405, JP)
中村 英生 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 1008405, JP)
International Classes:
B24B57/02; B01D29/01; B01D29/66; B02C19/06; B03B5/32; B24B57/00; B01D29/01; B01D29/66; B02C19/06; B03B5/28
Attorney, Agent or Firm:
SENMYO, Kenji et al. (4th Floor, SIA Kanda Square17, Kanda-konyach, Chiyoda-ku Tokyo 35, 1010035, JP)
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