| 发明名称 |
METHOD FOR PRODUCING BIS (AMINOMETHYL) CYCLOHEXANE |
| 摘要 |
A method for producing a bis(aminomethyl)cyclohexane having an isomerization step of isomerizing a cis-isomer of 1,4-bis(aminomethyl)cyclohexane and/or a trans-isomer of 1,3-bis(aminomethyl)cyclohexane at the bottom part of a distillation tower to obtain a trans-isomer of 1,4-bis(aminomethyl)cyclohexane and/or a cis-isomer of 1,3-bis(aminomethyl)cyclohexane; and a distillation step of separating the trans-isomer of 1,4-bis(aminomethyl)cyclohexane and/or the cis-isomer of 1,3-bis(aminomethyl)cyclohexane by distillation, in the top part of the distillation tower, in which the isomerization reaction temperature in the isomerization step is 80 to 140° C., and the isomerization step and the distillation step are simultaneously carried out. |
| 申请公布号 |
US2016229792(A1) |
申请公布日期 |
2016.08.11 |
| 申请号 |
US201415021841 |
申请日期 |
2014.09.17 |
| 申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
YAMAMOTO Yoshiaki;SAMESHIMA Yuko |
| 分类号 |
C07C209/68;C07C209/86;C07C211/18 |
主分类号 |
C07C209/68 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for producing a bis(aminomethyl)cyclohexane comprising:
isomerizing a cis-isomer of 1,4-bis(aminomethyl)cyclohexane and/or a trans-isomer of 1,3-bis(aminomethyl)cyclohexane at a bottom part of a distillation tower to obtain a trans-isomer of 1,4-bis(aminomethyl)cyclohexane and/or a cis-isomer of 1,3-bis(aminomethyl)cyclohexane; and separating the trans-isomer of 1,4-bis(aminomethyl)cyclohexane and/or the cis-isomer of 1,3-bis(aminomethyl)cyclohexane by distillation, in a top part of the distillation tower, wherein an isomerization reaction temperature of the isomerizing is 80 to 140° C.; and the isomerizing and the distillation are simultaneously carried out. |
| 地址 |
Chiyoda-ku, Tokyo JP |
