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Title:
METAL ADSORBENT HAVING NONWOVEN FABRIC FORM, AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2015/129559
Kind Code:
A1
Abstract:
Provided are a metal adsorbent having a nonwoven fabric form, for use in adsorption and recovery of metals in solution, wherein the metal adsorbent having a nonwoven fabric form is produced by passing through: a) a step for preparing a polymer having glycidyl groups in the molecules thereof; b) a step for kneading the polymer having glycidyl groups, and a polyolefin fiber matrix polymer having a flow initiation temperature of 200°C or below; c) a step for forming a nonwoven fabric by a melt blowing process or spunbonding process; and d) a step for reacting long-chain metalloligands having amino groups or imino groups, with the glycidyl groups on the nonwoven fabric fiber surfaces, or with halohydrin groups formed by reacting a hydrogen halide with these the glycidyl groups, to introduce metal-adsorbing functional groups. The metal adsorbent has high adsorbent capacity and high chemical resistance, can be endowed with a variety of metal-adsorbing properties, and can be readily processed into various forms. Also provided is a production method for the metal adsorbent.

Inventors:
INOUE YOSHINORI (JP)
KAJIWARA TAKEHIRO (JP)
SAITO MASAHARU (JP)
FUJII TAKAYUKI (JP)
Application Number:
PCT/JP2015/054713
Publication Date:
September 03, 2015
Filing Date:
February 20, 2015
Export Citation:
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Assignee:
NIPPON FILCON KK (JP)
KB SEIIREN LTD (JP)
International Classes:
B01J20/26; B01J20/30; B01J45/00; B01J47/12; C08L23/02; C08L29/04; D04H1/4291; D04H3/007; D04H3/16; D06M13/467; D06M13/48
Domestic Patent References:
WO2013111891A12013-08-01
WO2014038415A12014-03-13
Foreign References:
JP2011056350A2011-03-24
JP2013027863A2013-02-07
JPH11290702A1999-10-26
Attorney, Agent or Firm:
UBUKATA Kazuo (JP)
産 form Kazuhisa (JP)
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