Exxon Research and Engineering Company

Laurence F King

Joseph Serratore

Noel J Gaspar

Israel S Pasternak

Thomas H Sutherland

James R Wallace

A high bulk density/low porosity polyvinyl chloride resin which is highly processable and thermally stable is prepared by suspension polymerization wherein a vinyl chloride monomer is polymerized in the presence of: hydroxyethyl cellulose; an internal lubricant-type long chain compound such as butyl stearate; and a water insoluble/monomer soluble initiator such as lauryl peroxide, and wherein the polymerization is performed under low shear conditions in the presence of a minimum amount of oxygen.

Preparation of high bulk density/low porosity PVC resins

Heavy hydrocarbon feedstocks, such as atmospheric and vacuum residua, heavy crude oils and the like, are converted to predominantly liquid hydrocarbon products by contacting said feedstocks in the presence of hydrogen with a regenerable alkali metal carbonate molten medium containing a glass-forming oxide, such as boron oxide, at a temperature in the range of from above about the melting point of said molten medium to about 1000.degree.F. and at elevated pressures. Preferably, the regenerable molten medium comprises an oxide of boron in combination with a mixture of sodium and lithium carbonate or a mixture of sodium carbonate, potassium carbonate and lithium carbonate. The carbonaceous materials (coke) which are formed in the molten medium during the above-described conversion process are gasified by contacting said carbonaceous materials with a gaseous stream containing oxygen, steam, or carbon dioxide at temperatures of from above about the melting point of said medium to about 2000.degree.F. in order to gasify said carbonaceous materials and thereby regenerate the molten medium. The conversion of a heavy hydrocarbon feedstock by the above-described process reduces the viscosity of the feedstock and thereby produces increased proportions of predominantly liquid hydrocarbon products of the motor fuel range, fuel oils and lubricant basestocks.

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Mooretown, Canada

Laurence F King