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Title:
電気透析法を用いる水酸化オニウムの製造又は精製の方法
Document Type and Number:
Japanese Patent JP4233764
Kind Code:
B2
Abstract:
Methods of preparing or purifying onium hydroxides of the elements N, S or P by electrodialysis involve an electrodialysis apparatus comprising one or more cell units, each cell unit comprising a bipolar membrane and an anion-selective membrane, and a bipolar membrane or a cation-selective membrane being located on the anode side between the last anion-selective membrane and the anode.

Inventors:
Jork Botzel
Liner coverr
Marx Frede
Application Number:
JP2000586674A
Publication Date:
March 04, 2009
Filing Date:
December 06, 1999
Export Citation:
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Assignee:
BASF SE
International Classes:
B01D61/44; C02F1/469; B01D61/46; C07C209/68; C07C209/84; C07C211/63; C07F9/54; C25B3/00
Domestic Patent References:
JP2001519852A
JP11001788A
JP10225624A
JP6299385A
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel