Compositions – Electrolytes for electrical devices
Patent
1989-10-10
1990-05-29
Howard, Jacqueline V.
Compositions
Electrolytes for electrical devices
252 332, 252 334, 252 25, C10M13510
Patent
active
049293737
ABSTRACT:
In the preparation of an overbased calcium sulfonate, it has been found that adding the calcium hydroxide during the carbonation reaction reduced solid waste. An initial charge of 15 to 25 wt % of the total calcium hydroxide is added to initiate the carbonation reaction. The balance is added by a process whereby calcium hydroxide concentration remains low in the reaction admixture to reduce amorphous calcium carbonate residence time. In the process, calcium hydroxide is added in amounts whereby the molar ratio of carbon dioxide to the sum of calcium hydroxide and calcium oxide is about 0.8.
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Jao Tze-Chi
Matthews Leonard A.
Powers, III William J.
Howard Jacqueline V.
Medley Margaret B.
Morgan Richard A.
Park Jack H.
Priem Kenneth R.
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