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Title:
CHELATE-FORMING FIBER, METHOD FOR PRODUCING SAME, METAL ION TRAPPING METHOD USING CHELATE-FORMING FIBER, AND METAL CHELATE FIBER
Document Type and Number:
WIPO Patent Application WO/2013/141175
Kind Code:
A1
Abstract:
Provided is a chelate-forming fiber which is capable of trapping and recovering metal ions even in cases where the metal ions and a chelating agent are coexistent in a solution to be treated. This chelate-forming fiber is characterized in that a substituent represented by formula (1) is introduced into each molecule that constitutes the fiber. (In formula (1), each of D1 and D2 represents a carboxy group-containing substituent or a hydrogen atom; each of A1 and A2 represents a carboxy group-containing substituent, a hydrogen atom or the like; each of R1 and R2 represents a C1-5 alkylene group; and l represents an integer of 1-6. In this connection, a substituent represented by formula (1) has at least one carboxy group in the structure thereof.)

Inventors:
NAMBU NOBUYOSHI (JP)
OBATA KENICHI (JP)
NAKAMURA ATSUSHI (JP)
NAMBU TADAHIKO (JP)
Application Number:
PCT/JP2013/057529
Publication Date:
September 26, 2013
Filing Date:
March 15, 2013
Export Citation:
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Assignee:
CHUBU CHELEST CO LTD (JP)
CHELEST CORP (JP)
International Classes:
D06M13/342; D06M13/21; D06M13/332
Foreign References:
JPH10183470A1998-07-14
JP2004137652A2004-05-13
JP2002173665A2002-06-21
JP2000248467A2000-09-12
JP2000328449A2000-11-28
JP2004068182A2004-03-04
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
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