SORTING METHOD OF RESIDUE SILICON MATERIAL MIXED WITH FOREIGN SUBSTANCE

Title:

SORTING METHOD OF RESIDUE SILICON MATERIAL MIXED WITH FOREIGN SUBSTANCE

Document Type and Number:

WIPO Patent Application WO/2010/069119

Kind Code:

A1

Abstract:

A sorting method of residue silicon material mixed with foreign substance is characterized in that: the residue silicon material mixed with foreign substance is put into a carbonate solution; the gas generated by the reaction of the carbonate solution and the silicon material drives the rest silicon material floating upwardly; the silicon material floated upwardly is taken out, and the separation of the foreign substance and silicon material is achieved; the sorting of residue silicon material mixed with foreign substances is accomplished. Said sorting method is a sorting method of residue fine crushing silicon material mixed with foreign substance. The sorted silicon material is mainly used in the reign of semiconductor and solar energy photovoltaic. The present invention employs carbonate solution to sort silicon material，and the sorting method is efficient. It is suitable for large scale sorting, and can substitute traditional manual sorting work completely.

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Inventors:

ZHANG JINBING (CN)
WANG ZHIHUI (CN)
YE CHUNCHAO (CN)
GUO YANGFEI (CN)
WANG PINGJUN (CN)

Application Number:

PCT/CN2009/001228

Publication Date:

June 24, 2010

Filing Date:

November 05, 2009

Export Citation:

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Assignee:

JIANGXI SAI WEI LDK SOLAR HI T (CN)
ZHANG JINBING (CN)
WANG ZHIHUI (CN)
YE CHUNCHAO (CN)
GUO YANGFEI (CN)
WANG PINGJUN (CN)

International Classes:

B03D1/002

Foreign References:

CN1947870A	2007-04-18
CN101428252A	2009-05-13
CN1057598A	1992-01-08
CN201016091Y	2008-02-06
US4054442A	1977-10-18

Attorney, Agent or Firm:

SHANGCHENG & PARTNERS (18th FloorEver Bright World Center No.28,West Ping An Li Avenu, Xicheng District Beijing 4, CN)

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