Method for phosgenating compounds containing hydroxyl, thiol, amino and/or formamide groups

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United States of America Patent

PATENT NO 10105675
APP PUB NO 20170274346A1
SERIAL NO

15503855

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Abstract

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The invention relates to a method particularly for reacting phosgene with compounds that contain hydroxyl, thiol, amino and/or formamide groups, comprising the steps of: (I) providing a reactor which has a first reaction chamber (300, 310, 320, 330, 340, 350) and a second reaction chamber (200, 210, 220, 230, 240, 250, 260), the first and the second reaction chambers being separated from one another by means of a porous carbon membrane (100, 110, 120, 130, 140, 150); (II) providing carbon monoxide and chlorine in the first reaction chamber; and simultaneously (III) providing a compound containing hydroxyl, thiol, amino and/or formamide groups in the second reaction chamber. The porous carbon membrane is configured to catalyze the reaction of carbon monoxide and chlorine to obtain phosgene, and to allow this formed phosgene to pass into the second reaction chamber. The invention also relates to a reactor that is suitable for carrying out the claimed method.

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Patent Owner(s)

Patent OwnerAddress
BAYER AKTIENGESELLSCHAFTKAISER-WILHELM-ALLEE 1 51373 LEVERKUSEN GERMANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Metaxas, Konstantinos Cologne, DE 4 1
Mleczko, Leslaw Dormagen, DE 101 680
Roggan, Jens Stefan Cologne, DE 3 1
Schellen, Ralf Dormagen, DE 3 4
Wolf, Aurel Wuelfrath, DE 110 437

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