| 摘要 |
Ethyl chloroformate a useful material for thiocarbamate herbicide, were prepd. Thus, EtSH was contacted with COcl2 in a 1st liq. phase reaction zone contg. and activated C catalyst, the product was removed and passed over activated C in 2nd liq. phase reaction zone, and the product, was removed from the 2nd zone.
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