Abstract: An improved process for production of phenylalkylsulfonate compounds whereby the proportion of the 2-alkylphenylsulfonate isomer is reduced relative to the higher numbered isomers thereof (3-alkyl; 4-alkyl; etc.). After alkylation of aromatic compounds to produce a mixture of alkylbenzenes, the 2-alkylbenzene isomer is selectively cracked to lower boiling products, leaving the higher numbered isomers substantially unreacted. Subsequent sulfonation results in alkylphenylsulfonate derivatives having improved detergency properties.

Abstract: An improved method for synthesizing improved crystalline zeolites characterized by an alumina to silica mole ratio of not greater than 0.083 and a constraint index within the approximate range of 1 to 12 is provided. The improved method comprises forming a reaction mixture containing one or more sources of alkali metal oxide, organic nitrogen-containing cations, hydrogen ions, an oxide of silicon, water, and optionally, an oxide of aluminum, wherein the mole ratio for hydroxide ions/silica in said reaction mixture is zero and the mole ratio of H.sup.+ (additional)/silica in said reaction is between 0 and 1.0, and wherein the pH of said reaction mixture is at least about 7, and maintaining the reaction mixture at a temperature and pressure for a time necessary to crystallize therefrom said crystalline zeolite. Improvement in the present synthesis method resides, for example, in reduced crystallization time and reduced organic nitrogen-containing cation source requirement.

Abstract: Conventional noble metal reforming to upgrade the octane number of petroleum naphtha is an endothermic reaction which is carried out in a series of reactors with intermediate furnace heating of the petroleum fraction being upgraded. This specification discloses a process and apparatus configuration to increase the octane number of the reformate at a minimum liquid yield loss by cooling the first reforming stage effluent and then contacting the cooled effluent with a ZSM-5 type zeolite catalyst prior to the first intermediate furnace heating.

Abstract: An improved process for impregnation or ion exchange of catalysts or catalyst supports utilizing ebullated bed techniques.

Abstract: A process for selective propylation of the benzene content of hydrocarbon mixtures wherein the mixture is brought into contact with propylene in the presence of a crystalline zeolite catalyst having a silica to alumina mole ratio of at least about 12 and a constraint index of from 1 to 12, to produce isopropylbenzene and diisopropylbenzene. The reaction may be carried out at temperatures of from about 100.degree. C. to the critical temperature of the benzene and at pressures ranging between about 10.sup.5 N/m.sup.2 and 6.times.10.sup.6 N/m.sup.2.

Abstract: A new crystalline aluminosilicate zeolite product is provided having a structure intermediate that of ZSM-5 and ZSM-11, having a characterizing X-ray diffraction pattern and having a unit cell parameter of at least about 40 Angstroms. There is also provided a method for synthesizing the new zeolite and a process for using the same as a catalyst in effecting conversion of organic compounds.

Abstract: A new porous zeolite, a method of making same and the use thereof in catalytic conversion of organic compounds. The new product has a composition, expressed in terms of moles of anhydrous oxides per 100 moles of silica as follows:(0-2.5)M.sub.2 /nO: (0-2.5)Al.sub.2 O.sub.3 : (100)SiO.sub.2wherein M is at least one cation having a valence n and wherein the zeolite is characterized by the distinctive X-ray powder diffraction pattern as shown in Table 1 herein. The new zeolite is prepared from a reaction mixture comprising a source of silica, a source of organic compounds of Group VB, alkali metal cations, water and with or without a source of alumina.

Abstract: A method of passivating metal contaminants on cracking catalysts which comprises contacting said catalysts with steam for limited periods of time and at moderate temperatures.

Abstract: A process is provided for the concentration, separation and/or recovery of precious metals such as platinum and palladium via their soluble amine complexes from solutions by sorbing said complexes in one or more members of a novel class of zeolites. Said novel class of zeolites is characterized by a silica to alumina mole ratio of at least 12 and a constraint index in the approximate range of greater than about 2 to about 12.