Abstract: A method of reactivating a mercaptan oxidation catalytic composite of an adsorptive support and a metal chelate comprising contacting the composite with an aqueous solution of a quarternary ammonium compound and a linear ionic compound at a temperature of from about 55.degree. C. to about 175.degree. C.

Abstract: A low temperature method of calcining a zeolitic catalyst and the product of the method, the method comprising reducing the water content of the catalyst to less than 1.5 wt. % by contacting the catalyst with a water-miscible organic fluid and thereafter calcining the catalyst at a temperature of less than about 1200.degree. F.

Abstract: A method of reactivating a mercaptan oxidation catalytic composite of an adsorptive support and a metal chelate comprising the steps of first contacting the composite with an aqueous ammoniacal solution of a metal chelate, and second contacting the composite with an aqueous solution of a quaternary ammonium compound at a temperature of from about 55.degree. C. to about 175.degree. C.

Abstract: A method of treating a mercaptan-containing sour petroleum distillate which comprises contacting said distillate at oxidation conditions with a mercaptan oxidation catalyst, such as a metal phthalocyanine disposed on a carrier, in the presence of a substituted ammonium compound, such as a benzyldimethylalkylammonium hydroxide, and a linear ionic compound, the latter preferably comprising a saturated compound having from about 9 to about 24 carbon atoms.

Abstract: A catalytic composite comprising a metal chelate mercaptan oxidation catalyst impregnated on a basic anion exchange resin is disclosed. The catalytic composite is particularly useful to effect the oxidation of mercaptans contained in a sour petroleum distillate.

Abstract: Disclosed are a catalytic composite, and a method of preparing a catalytic composite, useful in the treatment of sour mercaptan-containing petroleum distillates, and a method of using the catalytic composite in treating sour petroleum distillates. More specifically, the method of preparation comprises contacting a molecular sieve support with a specified substituted ammonium compound, drying the resulting composite, thereafter contacting the resulting composite with an alkali metal hydroxide and a metal chelate, the alkali metal hydroxide being in a weight ratio with the adsorptive support of from about 0.1:1 to about 1:1, and thereafter drying the resulting catalytic composite. A sour petroleum distillate can be treated with the catalytic composite by contacting the distillate at oxidation conditions with the catalytic composite.

Abstract: Disclosed is a method of preparing a catalytic composite useful in the treatment of sour mercaptan-containing petroleum distillates. More specifically, the method of preparation comprises contacting an adsorptive support with a substituted ammonium hydroxide, drying the resulting composite, thereafter contacting the resulting composite with an alkali metal hydroxide and a metal chelate, the alkali metal hydroxide being in a weight ratio with the adsorptive support of from about 0.1:1 to about 1:1, and thereafter drying the resulting catalytic composite.

Abstract: High surface area alumina, and a method of preparing them. More specifically, a method of preparing aluminas having a surface area of from about 300 square meters per gram to about 700 square meters per gram, by preparing a first solution of an aluminum alkoxide and an organic solvent selected from the group consisting of ethers, ketones, aldehydes, and mixtures thereof, admixing the first solution with a second solution comprising water and an organic solvent selected from the group consisting of ethers, ketones, aldehydes, and mixtures thereof, to form a solid material, and drying and calcining the solid material to recover alumina. Also, an alumina with an average micropore diameter of from about 20 angstroms to about 100 angstroms, and a total pore volume of from about 0.35 ml/g to about 1 ml/g.