1
Dean A Young: Landfill material. Union Oil Company of California, Richard C Hartman, Lannas S Henderson, Gregory F Wirzbicki, March 6, 1979: US04142912 (39 worldwide citation)

A method for treating arsenic-containing waste materials for disposal in landfill sites comprises admixing an arsenic waste, Portland cement, sand, one or more water-soluble manganese or alkaline earth metal salts, and water, thereby producing a slurry similar to wet concrete, which slurry, when cur ...


2
Dean A Young: Method of preparing crystalline silica polymorph. Union Oil Company of California, Dean Sandford, Cleveland R Williams, April 20, 1982: US04325929 (32 worldwide citation)

A silica polymorph suitable for use in preparing an aromatic alkylation or isomerization catalyst is prepared by hydrothermally crystallizing said silica polymorph from a silicate solution containing an organic agent, in combination with a base solution, and an acid solution. Crystallization is effe ...


3
Dean A Young: Method of preparing crystalline silica polymorph. August 17, 1982: US04344927 (29 worldwide citation)

A crystalline silicate suitable for use in preparing an aromatic alkylation or isomerization catalyst is prepared by hydrothermally crystallizing said crystalline silicate from a silicate solution containing an organic agent, in combination with a base solution, and an acid solution. Crystallization ...


4
Dean A Young: Process for selectively producing para-xylene. Union Oil Company of California, Cleveland R Williams, Dean Sandford, May 26, 1981: US04270017 (29 worldwide citation)

Para-xylene is selectively prepared by reacting toluene and a methylating agent in the presence of a phosphorus modified catalyst comprising a silica polymorph intermixed with an inorganic refractory oxide, said catalyst having an alkali content of less than about 1.3 milliequivalents per gram as av ...


5
Dean A Young: Shock calcined aluminosilicate zeolites. Union Oil Company of California, Yale S Finkle, Gregory F Wirzbicki, Dean Sandford, July 19, 1988: US04758328 (27 worldwide citation)

A process for producing a thermally shock calcined aluminosilicate zeolite comprising (A) precalcining an aluminosilicate zeolite at a relatively low temperature, (B) very rapidly increasing the temperature of the aluminosilicate zeolite to a relatively high temperature for a short period of time, a ...


6
Dean A Young, Jeffery W Koepke: Catalytically active amorphous silica. Union Oil Company of California, Gregory F Wirzbicki, Dean Sandford, November 8, 1983: US04414137 (17 worldwide citation)

Catalytically active amorphous silicas are prepared by dehydrating a silica hydrogel or precipitate prepared from an acidified aqueous silicate solution containing an amine of pK.sub.a above 10 or a cation containing either a nitrogen or phosphorus atom bonded to four carbon atoms. The resultant amo ...


7
Dean A Young: Shock calcined aluminosilicate zeolites. Union Oil Company of California, Yale S Finkle, Gregory F Wirzbicki, Dean Sandford, November 18, 1986: US04623633 (16 worldwide citation)

A process for producing a thermally shock calcined aluminosilicate zeolite comprising (A) precalcining an aluminosilicate zeolite at a relatively low temperature, (B) very rapidly increasing the temperature of the aluminosilicate zeolite to a relatively high temperature for a short period of time, a ...


8
Dean A Young, Jeffery W Koepke: Hydrocracking with catalytically active amorphous silica and zeolites. Union Oil Company of California, Dean Sandford, Gregory F Wirzbicki, Alan H Thompson, October 22, 1985: US04548705 (10 worldwide citation)

Catalytically active amorphous silicas are prepared by dehydrating a silica hydrogel or precipitate prepared from an acidified aqueous silicate solution containing an amine of pK.sub.a above 10 or a cation containing either a nitrogen or phosphorus atom bonded to four carbon atoms. The resultant amo ...


9
Dean A Young: Demetallization of petroleum feedstocks with zinc chloride and titanium tetrachloride catalysts. Union Oil Company of California, Gregory F Wirzbicki, Richard C Hartman, Dean Sandford, April 10, 1979: US04148717 (10 worldwide citation)

Heavy residual fractions are treated to remove vanadium and nickel contaminants by contact with zinc chloride and/or titanium tetrachloride under mild conditions of elevated temperature and pressure. The zinc chloride and titanium tetrachloride act as catalysts for the conversion of vanadium and nic ...


10
Dean A Young: Crystalline silica catalysts. Union Oil Company of California, Robert J Baran, Cleveland R Williams, Dean Sandford, May 21, 1985: US04518703 (9 worldwide citation)

Para-xylene is selectively prepared by reacting toluene and a methylating agent in the presence of a phosphorus modified catalyst comprising a silica polymorph intermixed with an inorganic refractory oxide, said catalyst having an alkali content of less than about 1.3 milliequivalents per gram as av ...