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Title:
樹脂固体酸の製造方法
Document Type and Number:
Japanese Patent JP6607673
Kind Code:
B2
Abstract:
Provided is a resin solid acid capable of reducing intermediate stage production costs by omitting the synthetic resin carbonization step and allowing sulfo groups to be introduced directly into the synthetic resin, and a method for producing that resin solid acid. The resin solid acid is a sulfo group-modified resin obtained by introducing sulfo groups into a raw material resin in an uncarbonized state, the yield of the sulfo group-modified resin based on the weight of the uncarbonized raw material resin is 80% or more, the amount of sulfo groups in the sulfo group-modified resin is 1 mmol/g or more, and the raw material resin is in the form of a powder, granules or fibers. In addition, the method for producing the resin solid acid is a production method for obtaining a sulfo group-modified resin by comprising a step for adding a sulfonating agent in the form of any of sulfuric acid, fuming sulfuric acid or chlorosulfonic acid to a raw material resin in an uncarbonized state, and a step for heating the uncarbonized raw material resin at 200°C or lower.

Inventors:
Atsushi Kodama
Hiroshi Yamada
Ryuji Kawakami
Tatsuya Shingu
Application Number:
JP2014257771A
Publication Date:
November 20, 2019
Filing Date:
December 19, 2014
Export Citation:
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Assignee:
Futamura Chemical Co., Ltd.
International Classes:
B01J31/06; B01J37/08; C08G8/28; C08G12/40; C08G59/14; C08G65/36
Domestic Patent References:
JP6199739A
JP1288305A
JP48028596A
JP2012193169A
JP2003272672A
JP2005285449A
JP2008066221A
Foreign References:
CN101550223A
US3933424
Attorney, Agent or Firm:
Noriaki Goto