Catalyst and method for its preparation

Patent metadata

Field	Value
Publication number	US-2016304418-A1
Application number	US-201615193228-A
Country	US
Kind code	A1
Filing date	Jun 27, 2016
Priority date	Jul 11, 2011
Publication date	Oct 20, 2016
Grant date	—

Abstract

A catalyst including gold, or a compound thereof, and sulphur, a compound of sulphur, trichloroisocyanuric acid or a metal dichloroisocyanurate on a support, together with a process for manufacturing the catalyst and its use in a chemical process are described.

First claim

1 . A catalyst comprising gold, or a compound thereof, and trichloroisocyanuric acid or a metal dichloroisocyanurate on a support.

2 . The catalyst according to claim 1 , comprising from 0.01-10% of gold, by weight based on the weight of the total catalyst.

3 . The catalyst according claim 1 , wherein said support comprises carbon.

4 . The catalyst according to claim 1 , wherein said support comprises a metal oxide.

5 . The catalyst according to claim 1 , wherein said support is in the form of a powder, granulate or shaped unit.

6 . The catalyst according to claim 1 , wherein at least some of the gold is in a positive oxidation state.

7 . The catalyst according to claim 1 , further comprising a metal or a compound of a metal selected from the group consisting of cobalt, copper, lanthanum, cerium, lithium, sodium, potassium, rubidium, caesium, magnesium, calcium, strontium and barium.

8 . A method of manufacturing the catalyst of claim 1 , comprising the steps of:
impregnating a catalyst support with a solution of gold or a compound thereof and a solution of at least one of trichloroisocyanuric acid or a metal dichloroisocyanurate; and drying the impregnated catalyst support.

9 . A chemical process comprising reacting at least one chemical substrate in the presence of a catalyst comprising:
a) gold, or a compound thereof; and b) trichloroisocyanuric acid or a metal dichloroisocyanurate, on a support.

10 . The chemical process according to claim 9 , comprising oxidation of said chemical substrate.

11 . The process according to claim 9 , wherein the chemical process is hydrochlorination of an alkyne comprising reacting said alkyne with hydrogen chloride in the presence of said catalyst.

12 . The process according to claim 11 , wherein the catalyst comprises from 0.01-10% by weight of gold.

13 . The process according to claim 13 , wherein the catalyst comprises from 0.01-0.6% by weight of gold.

14 . The process according to claim 11 , further comprising a step of treating said catalyst with hydrogen chloride in the absence of acetylene.

15 . The process according to claim 11 , wherein said support comprises carbon.

16 . The process according to claim 11 , wherein said support comprises a metal oxide.

17 . The process according to claim 11 , wherein said support is in the form of a powder, granulate or shaped unit.

18 . The process according to claim 11 , wherein at least some of the gold is in a positive oxidation state.

19 . The process according to claim 11 , wherein said catalyst further comprises a metal or a compound of a metal selected from the group consisting of cobalt, copper, lanthanum, cerium, lithium, sodium, potassium, rubidium, caesium, magnesium, calcium, strontium and barium.

Assignees

• Johnson Matthey Plc

Inventors

• Bishop Peter Trenton
• Carthey Nicholas Andrew
• Johnston Peter

Classifications

• B01J2531/845

  Cobalt · CPC title

• B01J2531/16

  Copper · CPC title

• B01J37/0209

  involving a reaction between the support and a fluid · CPC title

• B01J37/02

  Impregnation, coating or precipitation ({B01J37/0009 and B01J37/0018 take precedence } ; protection by coating B01J33/00) · CPC title

• B01J31/16 Primary

  containing coordination complexes · CPC title