The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2026
Filed:
Sep. 06, 2021
Johnson Matthey Davy Technologies Limited, London, GB;
Youxin Cui, Billingham, GB;
Monica Garcia, Billingham, GB;
Pauline Elizabeth Glen, Billingham, GB;
Norman Macleod, Billingham, GB;
Michael Thomas Nicholson, Billingham, GB;
Simone Roloff-Standring, Billingham, GB;
Kaamila Un Din, Billingham, GB;
Johnson Matthey Davy Technologies Limited, London, GB;
Abstract
A method for preparing a copper-containing catalyst is described comprising the steps of: (a) combining an acidic copper-containing solution with a basic precipitant solution in a first precipitation step to form a first precipitate, (b) combining an alkali metal aluminate solution with an acidic solution in a second precipitation step to form a second precipitate, (c) contacting the first and second precipitates together in a further precipitate mixing step to form a catalyst precursor, and (d) washing, drying and calcining the catalyst precursor to form the copper-containing catalyst, wherein at least 70% by weight of the copper in the catalyst is present in the first precipitate and a silica precursor is included in the first precipitation step, the second precipitation step or the precipitate mixing step, to provide a catalyst with a silica content, expressed as SiO, in the range of 0.1 to 5.0 wt %.