Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing
Patent
1993-06-15
1994-11-15
Lewis, Michael
Chemistry of inorganic compounds
Carbon or compound thereof
Oxygen containing
423430, C01D 702
Patent
active
053646100
ABSTRACT:
In the process for making calcium carbonate by the double decomposition reaction of sodium carbonate and calcium hydroxide in aqueous reaction medium the improvement of producing calcium carbonate having a scalenohedral particle shape and a rosette aggregate structure comprising adding said sodium carbonate in more than one stream to said calcium hydroxide over a period of 1 to 8 hours and maintaining said reaction medium in the range of 80.degree. to 140.degree. F.
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Kalinchak Stephen G.
Lewis Michael
P. H. Glatfelter Company
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