Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1998-05-14
1999-06-29
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C07C 1716
Patent
active
059170999
ABSTRACT:
Methyl chloride is prepared by effecting liquid-phase reaction between hydrogen chloride and methanol in the absence of a catalyst. The reaction is effected in divided stages including at least an early stage and a last stage. The early stage of reaction is effected in a stoichiometric excess of hydrogen chloride. The last stage of reaction is effected in a stoichiometric excess of methanol. The invention is industrially advantageous in that methyl chloride can be prepared at a high conversion of hydrogen chloride while suppressing the formation of dimethyl ether by-product.
REFERENCES:
patent: 4922043 (1990-05-01), Petrosky
Derwent Publications, Ltd., XP-002071593 Aug. 1995.
Kobayashi Hiroyuki
Narita Tomomi
Satoh Yukinori
Shirota Yoshihiro
Shin-Etsu Chemical Co. , Ltd.
Siegel Alan
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