发明名称 |
THERMAL DECOMPOSITION OF CARBAMIC ACID ESTER |
摘要 |
The use of a solvent (I) for the thermal cracking of carbamic esters (II) is claimed. (I) has a definite b.pt. (pure substance) or a narrow boiling range < 10 degrees C at the operating pressure and is obtained as distillation cut of thermostable liquids. Preferably (I) is a distillation cut of commercially-available heat transfer oils, e.g. partly hydrogenated terphenyl, dibenzyltoluene, phenoxybiphenyl and o-phenoxybiphenyl. Its boiling range especially is < 3 degrees C at the operating pressure. Cracking is carried out in a reactive rectification column. |
申请公布号 |
JPH09249632(A) |
申请公布日期 |
1997.09.22 |
申请号 |
JP19970076714 |
申请日期 |
1997.03.13 |
申请人 |
BAYER AG |
发明人 |
YURUGEN DAAMAA;DEIITAA SHIYUREENSHIYUTAIN;HAINRITSUHI SUCHIYUUDE;OZUWARUDO UIRUMESU;KURISUCHIAN RASUPU;GEORUGU RONGE;KURAUSU NAHATOKAMUPU;BUIRUFURIITO RITSUTSU;SUTEFUAN KABERATSUKU |
分类号 |
C07C263/04;C07C265/04;C07C265/14;C07C269/06;C07C271/20 |
主分类号 |
C07C263/04 |
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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