Basic carbonate for manufacture of copper-containing catalyst
CA 1055677 A · Owner: Basf Aktiengesellschaft · Inventors: Schroeder, Wolfgang; Lingk, Heinz; Laurer, Peter R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a basic mixed carbonate of copper and aluminum of the empirical general composition, CumAl6(CO3)0.5mO3(OH)m+12 where m is a number between 2 and 6, as obtained by precipitating, at pH 8 to 9.5 and a temperature of from 60° to 90°C, (a) an aqueous dilute solution of copper and aluminum salts capable of being precipitated by carbonate the copper and aluminum being present in said solution in an atomic ration of from 2:6 to 6:6, with (b) an aqueous alkali metal carbonate or bicarbonate solution the atomic, concentration of alkali being about twice the concentration of copper and aluminum in said solution. This coppercontaining material dried and annealed for 1 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 5, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 1996.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.