Method for making copper-containing catalysts
Номер патента: EP4221887A1
Опубликовано: 09-08-2023
Автор(ы): Kaamila UN DIN, Michael Thomas NICHOLSON, Monica GARCIA, Norman MacLeod, Pauline Elizabeth GLEN, Simone ROLOFF-STANDRING, Youxin CUI
Принадлежит: JOHNSON MATTHEY PLC
Опубликовано: 09-08-2023
Автор(ы): Kaamila UN DIN, Michael Thomas NICHOLSON, Monica GARCIA, Norman MacLeod, Pauline Elizabeth GLEN, Simone ROLOFF-STANDRING, Youxin CUI
Принадлежит: JOHNSON MATTHEY PLC
Реферат: 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%.
Method for making copper-containing catalysts
Номер патента: US20230278015A1. Автор: Pauline Elizabeth GLEN,Norman MacLeod,Michael Thomas NICHOLSON,Simone ROLOFF-STANDRING,Youxin CUI,Monica GARCIA,Kaamila UN DIN. Владелец: JOHNSON MATTHEY PLC. Дата публикации: 2023-09-07.