(クロロ)炭化水素とホスゲンとを含む塩化水素ガス流から(クロロ)炭化水素を含まない塩化水素とホスゲンを含まない(クロロ)炭化水素とを回収する方法

Japanese Patent JP5158719

B2

(Chloro)hydrocarbon-free hydrogen chloride and phosgene-free (chloro)hydrocarbons are recovered from a hydrogen chloride stream having (chloro)hydrocarbons and phosgene. The recovery involves connecting a first adsorber and a second adsorber in series and passing the fresh hydrogen chloride stream comprising phosgene and (chloro)hydrocarbons firstly through the first adsorber and subsequently through the second adsorber until essentially no more (chloro)hydrocarbon is adsorbed by the first adsorber, passing the fresh hydrogen chloride stream through the second adsorber while the first adsorber is regenerated, with essentially phosgene-free (chloro)hydrocarbon being obtained in the regeneration, passing the fresh hydrogen chloride stream firstly through the second adsorber and subsequently through the regenerated first adsorber until essentially no more (chloro)hydrocarbon is adsorbed by the second adsorber, and passing the fresh hydrogen chloride stream through the first adsorber while the second adsorber is regenerated, with essentially phosgene-free (chloro)hydrocarbon being obtained in the regeneration.

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Martin Zezzing
Jacopsen, Knut
Reinhard, Claus-Dieter
Palash, Hans-Jurgen
Van den abert, peter
Schelling, Heiner

JP2008551785A

March 06, 2013

January 25, 2007

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BASF SE

C07C17/389; C01B7/01; C01B7/07; C07C25/06; C07C25/08

JP8505833A
JP2006117529A
JP2000272906A
JP3265503A

WO2006109416A1

Satoshi Eto

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