Phenol-Free Overbased Alkaline Earth Metal Carboxylate

摘要

A phenol-free overbased alkaline earth metal carboxylate is obtained by reacting a cyclic ether alcohol, an alkaline earth metal hydroxide, a fatty carboxylic acid, carbon dioxide, an optional fatty alcohol, and an optional liquid hydrocarbon solvent or oil.

主权项

1. A method of making a phenol-free overbased alkaline earth metal carboxylate comprising:
a. providing and reacting the following to form a reaction mixture:
i. cyclic ether alcohol,ii. alkaline earth metal hydroxide, andiii. optionally a hydrocarbon solvent or oil and b. heating the reaction mixture to a temperature of 250-280° F., c. adding (iv) a fatty acid to the reaction mixture, d. adding (v) carbon dioxide to the reaction mixture, to produce the phenol-free overbased alkaline earth metal carboxylate and water, and e. distilling at a temperature of over 280 to 300° F. to remove residual water, wherein no phenol or compound containing a phenol group is present in the reaction mixture.