Abstract: A process for fluidizing oily heavy slurries chosen from slurries of catalyst fines in hydrocarbon, coke slurries in hydrocarbon, and asphalt residues in hydrocarbon which comprises:(1) heating, with effective mixing, the oily heavy slurries to at least 140.degree. F., thereby forming a heated heavy slurry;(2) Adding to said heated heavy slurry with effective mixing, an effective fluidizing amount of a fluidizing agent which comprises the ingredients:______________________________________ Ingredient Wt. Percent ______________________________________ (a) water 15-85 (b) an ethoxylated nonyl phenol/ 40-5 formaldehyde resin having a molecular wt. between about 1000-25,000 (c) Surfactants having an HLB 40-5 between about 2.0-25.

Abstract: A process for fluidizing oily heavy slurries chosen from slurries of catalyst fines in hydrocarbon, coke slurries in hydrocarbon, and asphalt residues in hydrocarbon which comprises: (1) heating, with effective mixing, the oily heavy slurries to at least 140.degree. F., thereby forming a heated heavy slurry; (2) Adding to said heated heavy slurry with effective mixing, an effective fluidizing amount of a fluidizing agent which comprises the ingredients:______________________________________ Ingredient Wt. Percent ______________________________________ (a) water 15-85 (b) an ethoxylated nonyl phenol/formaldehyde 40-5 resin having a molecular wt. between about 1000-25,000 (c) Surfactants having an HLB bwtween about 40-5 2.0-25.

Abstract: Method for inhibiting the formation of foulants on petrochemical equipment which involves adding to the petrochemical, during processing, a composition comprising a thiodipropionate and either a dialkyl acid phosphate ester or a dialkyl acid phosphite ester.