发明名称 |
PROCESS FOR PRODUCING POLYAMIDES FROM AMINONITRILES |
摘要 |
PURPOSE: A process for producing a polyamide is provided, which polyamide is made from water or aminonitriles. CONSTITUTION: A process for producing a polyamide by reacting at least one aminonitrile with water has the following steps: (1) at least one aminonitrile is reacted with water at a temperature from 100 to 360°C and pressure from 0.1 to 35.x 10(6) Pa, yielding a reaction mixture; (2) the reaction mixture is further reacted at a temperature from 150 to 400°C and pressure lower than the pressure in step 1. The temperature and pressure are selected to yield a first gaseous phase and a first liquid or solid phase or a mixture of a first solid and a first liquid phase. The first gaseous phase is separated from the first liquid or solid phase or the mixture of a first liquid and a first solid phase is separated; and (3) the first liquid or solid phase or the mixture of a first liquid and first solid phase is mixed with a water-containing gaseous or liquid phase at a temperature from 150 to 360°C and pressure from 0.1 to 30 x 10(6) Pa, yielding a product mixture.
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申请公布号 |
KR20000035962(A) |
申请公布日期 |
2000.06.26 |
申请号 |
KR19997001738 |
申请日期 |
1999.03.02 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WEISS ROBERT;KRAUSS DIETER;KELLER DIETER;PIPPER GUNTER;HARDER WOLFGANG;LUDWIG ALFONS;MOHRSCHLADT RALF |
分类号 |
C08G69/00;C08G69/04;C08G69/08;C08G69/28;C08G69/36;(IPC1-7):C08G69/00 |
主分类号 |
C08G69/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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