Preparation of butynediol using bismuth modified spheroidal mala

Details Preparation of butynediol using bismuth modified spheroidal mala Preparation of butynediol using bismuth modified spheroidal mala

1978-01-16

1978-11-28

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 2900

Patent

active

041277341

ABSTRACT:
Spheroidal agglomerates of malachite crystals are prepared by bringing together solutions of a cupric salt, a bismuth salt and an alkali metal carbonate or bicarbonate to form a mixture containing amorphous hydrated copper carbonate, and then holding the mixture, without agitation, at a temperature of less than about 55.degree. C.

REFERENCES:
patent: 2300969 (1942-11-01), Reppe et al.
patent: 3650985 (1972-03-01), Kirchner

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