Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REMOVAL OF DIMETHYL ETHER FROM METHYL CHLORIDE
Document Type and Number:
Japanese Patent JPS62298540
Kind Code:
A
Abstract:
A process is described for the removal of dimethyl ether in methyl chloride by catalytic cleavage by means of hydrogen chloride. Dimethyl ether is present as an impurity in crude methyl chloride produced by the catalytic esterification of methanol. The crude methyl chloride is cooled so that water and hydrogen chloride separate out. Gaseous hydrogen chloride is then added to the methyl chloride in an amount corresponding to at least twice the molar amount of dimethyl ether, and the gaseous mixture is passed over a methanol esterification contact catalyst at an elevated temperature.

More Like This:
JPH0920716PRODUCTION OF 2,2-DIALKYL-ARLIDENE-CYCLOALKANONE COMPOUNDS
JP2006206588METHOD OF NUCLEOPHILIC ACYL SUBSTITUTION OF ANHYDRIDE USING OXOMETAL COMPLEX CATALYST
JP3795917Synthetic method of substituted sulfoxide
Inventors:
POST HENDRIK W (DE)
VON PLESSEN HELMOLD (DE)
LENDLE WILHELM (DE)
Application Number:
JP14542287A
Publication Date:
December 25, 1987
Filing Date:
June 12, 1987
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HOECHST AG
International Classes:
C07B61/00; B01J21/04; C07C17/00; C07C17/16; C07C17/38; C07C17/395; C07C19/03; C07C67/00; (IPC1-7): B01J21/04; C07C17/38; C07C19/02
Attorney, Agent or Firm:
Ezaki Mitsuyoshi



 
Previous Patent: PRODUCTION OF CONJUGATED DIENE COMPOUND

Next Patent: PRODUCTION OF HALOGENATED BENZENE DERIVATIVE