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US 6,399,801 B1Granted
Dry powder lithium carboxylates
AssigneeLithchem International
InventorsW. Novis Smith, Joel McCloskey
Life of this patent
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Abstract
The invention provides a process for preparing lithium carboxylates which can be used in the preparation of soaps, oils and greases. The process utilizes molten carboxylic acids in a reaction utilizing a minimum of water and provides a powdery product which does not need filtration.
Claims9
A process for the preparation of lithium carboxylate compounds of four or more carbon atoms and recovering the product without filtration which comprises the steps of:
- a) adding at least one molten carboxylic acid or glyceride ester thereof having at least four carbon atoms to a heated reaction vessel with high shear stirring;
- b) adding the requisite amount of concentrated lithium hydroxide aqueous solution or lithium hydroxide monohydrate crystals;
- c) heating the stirred mixture to a temperature of at least 80° C., and then;
- d) heating and stirring the resulting lithium carboxylate mixture until dry.
1 more element
A process for manufacturing lithium carboxylate compounds of four or more carbon atoms which comprise the following steps:
- a) adding at least one molten carboxylic acid or glyceride ester thereof having at least four carbon atoms to a reactor with high shear stirring and heating to a temperature of a least 80° C.;
- b) adding a stoichiometric amount of lithium hydroxide as monohydrate crystals or concentrated solutions thereof;
- c) heating the stirred mixture above 80° until reacted;
- and then
- d) heating and stirring the resulting lithium carboxylate mixture until dry.
2 more elements
Dependencies are inferred from the claim text.