| 发明名称 |
IMPROVEMENTS IN CHEMICALS PROCESS AND APPARATUS THEREFOR |
| 摘要 |
<p>1508836 Urea production MITSUI TOATSU CHEMICALS Inc 1 July 1975 [8 July 1974] 27772/75 Heading C2C [Also in Divisions B1 C7 and F4] Urea is prepared from ammonia and carbon dioxide in the head of a heat exchanger where a non-corrosive material, liquid ammonia, flows in a gap between the inner surface and the outside of an inner member, to protect the inner surface from corrosion by the reactants (see Division B1).</p> |
| 申请公布号 |
IN143794(B) |
申请公布日期 |
1978.02.04 |
| 申请号 |
IN1153CA1975 |
申请日期 |
1975.06.11 |
| 申请人 |
MITSUI TOATSU CHEMICALS |
发明人 |
TAKAE TOSHINORI;OTSUKA EIJI;KATO TOSHIKI;TSUJI NORIO;KIMURA TETSUO;INOUE SHIGERU |
| 分类号 |
B01J3/04;B01J4/00;B01J19/00;B01J19/02;C01B7/00;C01B7/01;C07C67/00;C07C239/00;C07C273/04;F28D3/04;(IPC1-7):B01J1/00;C23F15/00 |
主分类号 |
B01J3/04 |
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代理人 |
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