Title:
METHOD FOR PRODUCING TRANS-1,4-BIS(AMINOMETHYL)CYCLOHEXANE
Document Type and Number:
WIPO Patent Application WO/2012/046782
Kind Code:
A1
Abstract:
A method for producing trans-1,4-bis(aminomethyl)cyclohexane involves: a nuclear hydrogenation step of subjecting at least one type of terephthalic acid or a derivative thereof selected from a group consisting of terephthalic acid, terephthalate esters, and terephthalic acid amides to nuclear hydrogenation to thereby obtain hydrogenated terephthalic acid or a derivative thereof; a cyanation step of bringing the hydrogenated terephthalic acid or the derivative thereof obtained in the nuclear hydrogenation step into contact with ammonia to thereby obtain trans-1,4-dicyanocyclohexane from the obtained 1,4-dicyanocyclohexane; and an aminomethylation step of bringing the trans-1,4-dicyanocyclohexane obtained in the cyanation step into contact with hydrogen to thereby obtain trans-1,4-bis(aminomethyl)cyclohexane. In the cyanation step, a metal oxide is used as a catalyst, and the metal content of the obtained trans-1,4-dicyanocyclohexane is 3000 ppm or less.
Inventors:
YOSHIMURA NARITOSHI (JP)
KIYONO SHINJI (JP)
HAMADA TETSUYA (JP)
WATANABE EIJI (JP)
SAWADA SAIKO (JP)
KIYONO SHINJI (JP)
HAMADA TETSUYA (JP)
WATANABE EIJI (JP)
SAWADA SAIKO (JP)
Application Number:
PCT/JP2011/073005
Publication Date:
April 12, 2012
Filing Date:
October 05, 2011
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
YOSHIMURA NARITOSHI (JP)
KIYONO SHINJI (JP)
HAMADA TETSUYA (JP)
WATANABE EIJI (JP)
SAWADA SAIKO (JP)
YOSHIMURA NARITOSHI (JP)
KIYONO SHINJI (JP)
HAMADA TETSUYA (JP)
WATANABE EIJI (JP)
SAWADA SAIKO (JP)
International Classes:
C07C209/48; B01J23/14; B01J23/44; B01J25/00; C07C211/18; C07C253/22; C07C253/34; C07C255/46; C07B61/00
Foreign References:
| JP2001181223A | 2001-07-03 | |||
| JPS6310752A | 1988-01-18 | |||
| JP2001187765A | 2001-07-10 | |||
| JPH10259167A | 1998-09-29 | |||
| JPH10330329A | 1998-12-15 | |||
| JPH10306066A | 1998-11-17 | |||
| JPH11335335A | 1999-12-07 | |||
| JPH11335335A | 1999-12-07 | |||
| JPH10306066A | 1998-11-17 | |||
| JP2003026638A | 2003-01-29 | |||
| JP2001181223A | 2001-07-03 | |||
| JPS6310752A | 1988-01-18 | |||
| JP2001187765A | 2001-07-10 |
Other References:
BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, vol. 71, no. 4, 1938, pages 759
Attorney, Agent or Firm:
OKAMOTO, HIROYUKI (JP)
Hiroyuki Okamoto (JP)
Hiroyuki Okamoto (JP)
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Claims: