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:
Sep. 09, 2025
Filed:
Sep. 06, 2021
Johnson Matthey Public Limited Company, 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 Public Limited Company, 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 first basic precipitant solution in a first precipitation step to form a first precipitate, (b) combining an acidic aluminium-containing solution, further comprising one or more metal compounds selected from copper compounds, zinc compounds and promoter compounds, with a second basic precipitant solution in a second precipitation step to form a second precipitate, (c) contacting the first and second precipitates together in a further mixing step to form a catalyst precursor, and (d) washing, drying and calcining the catalyst precursor to form the copper-containing catalyst, wherein 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 S1O2, in the range of 0.1 to 5.0 wt %.