| 发明名称 |
Process for manufacturing isocyanates |
| 摘要 |
The present invention relates to a process for manufacturing isocyanates from an amine compound. The process comprises the steps of
a) Providing chlorine;b) Providing carbon monoxide;c) Reacting said chlorine and said carbon monoxide for providing phosgene, the carbon monoxide being provided in an adjustable molar excess;d) Providing an amine compound and phosgenating said amine compound using said phosgene thereby providing said isocyanate;
the process further comprises adjusting said adjustable molar excess, i.e. the molar excess of carbon monoxide, for adjusting the color of the isocyanate. |
| 申请公布号 |
US8802890(B2) |
申请公布日期 |
2014.08.12 |
| 申请号 |
US200913130773 |
申请日期 |
2009.11.05 |
| 申请人 |
Huntsman International LLC |
发明人 |
Carr Robert Henry;Koole Johannes Lodewijk;Bruinsma Udo Brian Dave Mike Rodger |
| 分类号 |
C07C265/12;C07C263/10 |
主分类号 |
C07C265/12 |
| 代理机构 |
|
代理人 |
Diaz Robert A. |
| 主权项 |
1. A process for manufacturing isocyanates from an amine compound, the process comprising the steps of
a) providing chlorine, wherein the chlorine comprises bromine in the range of 50 to 500 ppm in molecular or bound form; b) providing carbon monoxide; c) reacting said chlorine and said carbon monoxide for providing phosgene, the carbon monoxide being provided in an adjustable molar excess, wherein the mol ratio of carbon monoxide over chlorine is in a range of above 1.000:1.000 up to or equal to 1.025:1.000; d) providing an amine compound and phosgenating said amine compound using said phosgene thereby providing said isocyanate; and wherein the process further comprises adjusting said adjustable molar excess for adjusting the colour of the isocyanate. |
| 地址 |
The Woodlands TX US |
