Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1990-12-10
1992-05-05
Dixon, Jr., William R.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106472, 106401, 106400, 10628732, 264 291, 423445, 423448, 423449, 423460, 423414, C09C 144
Patent
active
051103591
ABSTRACT:
A process for treating high sulfur petroleum coke to inhibit puffing is disclosed wherein particles of the petroleum coke are contacted with a compound containing an alkali or alkaline earth metal selected from the group consisting of sodium, potassium, calcium and magnesium, at an elevated temperature above that at which the alkali or alkaline earth metal compound begins to react with carbon, but below the temperature at which the coke particles would begin to puff in the absence of the compound. The coke particles are maintained at the elevated temperature for a sufficient period of time to permit the reaction to proceed and allow products of reaction to penetrate into the particles and form an alkali-or alkaline-earth-metal-containing deposit throughout the mass of the particles; and then cooling the so-treated coke particles.
REFERENCES:
patent: 2814076 (1957-11-01), Gartland
patent: 3506745 (1970-04-01), Juel et al.
patent: 3624231 (1971-11-01), Juel et al.
patent: 3642962 (1972-02-01), Wallouch
Mellors Comprehensive Treaties on Inorganic and Theoretical Chemistry, 1961, vol. II, Supplement II, pp. 324, 325 and 1149.
Industrial and Engineering Chemistry by D. A. Fox and A. H. White vol. 23, No. 3, Mar. 1931, pp. 259-266 "Effect of Sodium Carbonate Upon Gasification of Carbon and Production of Producer Gas".
Ball David R.
Orac Thomas H.
Quandt Herbert C.
Dixon Jr. William R.
Hertzog Scott L.
O'Brien Cornelius F.
UCAR Carbon Technology Corporation
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