Process for hydrogenating dichloroisopropyl ether

Patent metadata

Field	Value
Publication number	US-9758454-B2
Application number	US-201515326523-A
Country	US
Kind code	B2
Filing date	Sep 9, 2015
Priority date	Sep 16, 2014
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

Convert dichloroisopropyl ether into a halogenated derivative by contacting the dichloroisopropyl ether with a source of hydrogen and a select heterogeneous hydrogenation catalyst under process conditions selected from a combination of a temperature within a range of from 50 degrees centigrade (° C.) to 350° C., a pressure within a range of from atmospheric pressure (0.1 megapascals) to 1000 pounds per square inch (6.9 MPa), a liquid feed volume flow to catalyst mass ratio between 0.5 and 10 L/Kg*h and a volume hydrogen/volume liquid ratio between 100 and 5000 ml gas/ml liquid. The halogenated derivative is at least one of 1-chloro-2-propanol and 1,2-dichloropropane 1, and glycerin monochlorohydrin.

First claim

What is claimed is:

1. A process for converting dichloroisopropyl ether into a halogenated derivative that comprises contacting the dichloroisopropyl ether with a source of hydrogen and a heterogeneous hydrogenation catalyst selected from a group consisting of a ruthenium on carbon catalyst, a copper/chromium/manganese/barium catalyst, a copper/calcium supported on silica catalyst and a copper/zinc catalyst under process conditions selected from a combination of a temperature within a range of from 50 degrees centigrade (° C.) to 350° C., a pressure within a range of from atmospheric pressure (0.1 megapascals) to 1000 pounds per square inch (6.9 MPa), a liquid feed volume flow to catalyst mass ratio between 0.5 and 10 L/Kg*h and a volume hydrogen/volume liquid ratio between 100 and 5000 ml gas/ml liquid, the halogenated derivative at least one of 1-chloro-2-propanol and 1,2-dichloropropane, and glycerin monochlorohydrin.

2. The process of claim 1 , wherein the combination includes at least one of a temperature of from 100° C. to 300° C., a pressure of from 10 psi (0.069 megapascal (MPa) to 200 psi (1.38 MPa, a liquid feed volume flow to catalyst mass ratio within a range of from 1 L/Kg*h to 8 L/Kg*h, and a volume hydrogen/volume liquid ratio of from 350 ml gas/ml liquid to 3500 ml gas/ml liquid.

3. The process of claim 1 , wherein the combination includes at least one of a temperature of from 150° C. to 250° C., a pressure of from 10 psi (0.069 MPa) to 20 psi (0.138 MPa), a liquid feed volume flow to catalyst mass ratio within a range of from 1.4 L/Kg*h to 5 L/Kg*h, and a volume hydrogen/volume liquid ratio of from 600 ml gas/ml liquid to 2700 ml gas/ml liquid.

Assignees

• Dow Global Technologies Llc

Inventors

• Ferrari Daniela
• Stears Brien A
• Liu Yu

Classifications

• B01J21/18

  Carbon · CPC title

• B01J35/0006

  Operations & Transport · mapped topic

• C07C19/01

  containing chlorine · CPC title

• B01J23/78

  with alkali- or alkaline earth metals · CPC title

• B01J21/08

  Silica · CPC title