Invention Grant
- Patent Title: Aldehyde adsorbent, method for removing aldehyde, method for producing acetic acid, and method for regenerating aldehyde adsorbent
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Application No.: US14897125Application Date: 2014-06-03
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Publication No.: US09662646B2Publication Date: 2017-05-30
- Inventor: Zhixiong You , Yoichi Umehara , Tetsuro Matsumura , Takeshi Minami
- Applicant: CHIYODA CORPORATION
- Applicant Address: JP Yokohama-shi, Kanagawa
- Assignee: CHIYODA CORPORATION
- Current Assignee: CHIYODA CORPORATION
- Current Assignee Address: JP Yokohama-shi, Kanagawa
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-123746 20130612
- International Application: PCT/JP2014/002950 WO 20140603
- International Announcement: WO2014/199593 WO 20141218
- Main IPC: B01J39/20
- IPC: B01J39/20 ; C07C51/44 ; C07C51/47 ; C07C45/79 ; C07C51/12 ; B01J39/05 ; B01J39/19 ; B01J49/06 ; B01J49/53
Abstract:
An aldehyde adsorbent that can adsorb and remove aldehyde from a carboxylic acid-containing liquid is provided. The aldehyde adsorbent is an aldehyde adsorbent for adsorbing aldehyde in a carboxylic acid-containing liquid containing aldehyde, including a cation exchange resin ion-exchanged with a polyvalent amine in 1 to 99% by mol of the total exchange capacity.
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