Process for producing peroxydicarbonates
AssigneeThe B. F. Goodrich Company
InventorKeith L. Gardner
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Abstract
The invention covered relates to an improved, solvent-free process for the continuous manufacture of peroxydicarbonate polymerization catalysts. The improvement in the process is the mere decanting of the reaction product through a filtering medium into a separation zone, decanting to a washing zone, decanting to a second separation zone and then taking the product up in an aqueous medium containing a suitable emulsifying agent whereby the resultant initiator or catalyst emulsion can be conveniently and safely stored until ready for use in a polymerization reaction.
Claims13
A process for the continuous production of liquid peroxydicarbonates consisting essentially of continuously reacting in one or more reaction zones a chloroformate having the formula RO--C(O)--Cl, wherein R is an alkyl group containing from 3 to 16 carbon atoms, an aqueous hydrogen peroxide and an aqueous alkali metal hydroxide at a temperature in the range of about 0.degree. C. to about 40.degree. C., continuously decanting the reaction mixture through a gravity filtering zone into a separation zone wherein the mixture is separated into a liquid organic layer containing the reaction product and a water layer, decanting said liquid organic layer into a washing zone and washing the same with water, decanting into a second separation zone to separate the washed organic layer, and decanting said organic layer into an agitated aqueous solution containing from about 0.5% to about 10.0% by weight of an emulsifier, thereby forming an emulsion containing the peroxydicarbonate.
Dependencies are inferred from the claim text.