发明名称 |
Process for the production of aromatic discocyanates in the gas |
摘要 |
Aromatic diisocyanates are produced by reacting in the gas phase the corresponding primary aromatic diamine with phosgene. The phosgene and the primary aromatic diamine are reacted within a mean residence time of from 0.05 to 15 seconds. The aromatic diamine used contains less than 0.05 mole % overall of aliphatic amine containing no keto groups, per mole of primary amino groups.
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申请公布号 |
US2009149672(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20080313469 |
申请日期 |
2008.11.20 |
申请人 |
POHL FRITZ;BISKUP KLAUS;BRUNS RAINER;STEFFENS FRIEDHELM;PADEKEN LARS |
发明人 |
POHL FRITZ;BISKUP KLAUS;BRUNS RAINER;STEFFENS FRIEDHELM;PADEKEN LARS |
分类号 |
C07C263/10 |
主分类号 |
C07C263/10 |
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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