Abstract: This invention relates to a molecular sieve comprising silicalite in a phosphorus modified alumina matrix, the precursor of the molecular sieve comprising silicalite powder dispersed in an alumina hydrosol commingled with a phosphorus containing compound, the phosphorus to aluminum molar ratio in the molecular sieve being from 1:1 to 1:100.

Abstract: Superior tolerance to catalyst coking is obtained with a catalytic composite comprising a gallium component and a crystalline aluminosilicate incorporated with a phorphorus containing alumina. A five-fold reduction in the coke content of the spent catalyst of the instant invention is observed which is directly attributable to the phosphorus containing alumina. A novel method of preparing this catalyst is presented, along with a novel process for the dehydrocyclodimerization of C.sub.2 -C.sub.5 aliphatic hydrocarbons.

Abstract: A novel phosphorus-modified alumina composite comprising a hydrogel having a molar ratio on an elemental basis of phosphorus to aluminum of from 1:1 to 1:100 together with a surface area of about 140 to 450 m.sup.2 /gm is defined. The composite is prepared by admixing an alumina hydrosol with a phosphorus-containing compound to form a phosphorus-modified sol and gelling said admixture. The phosphorus-modified alumina composite is useful as a catalyst support for various catalytic reactions.

Abstract: This invention comprises a process for separating a fatty acid from a mixture comprising a fatty acid and a rosin acid, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising silicalite in a phosphorus modified alumina matrix, the precursor of the molecular sieve comprising silicalite powder dispersed in an alumina hydrosol commingled with a phosphorus containing compound, the phosphorus to aluminum molar ratio in the molecular sieve being from 1:1 to 1:100. The fatty acid is selectively retained. The fatty acid is recovered from the molecular sieve by displacement with a displacement material comprising an organic acid.

Abstract: A new catalyst composition for converting hydrocarbons is disclosed. Also disclosed is a method for making the catalyst. The catalyst comprises a platinum group component and a phosphorous component with a porous support material. The catalyst is made by compositing a platinum group component with a porous support material and then contacting that composite with phosphorus or a compound of phosphorus. In a preferred embodiment of the invention a catalyst comprising platinum, phosphorus and chlorine with alumina is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable as a petrochemical feedstock.

Abstract: A new catalyst composition for converting hydrocarbons is disclosed. Also disclosed is a method for making the catalyst. The catalyst comprises a platinum group component and a phosphorous component with a porous support material. The catalyst is made by compositing a platinum group component with a porous support material and then contacting that composite with phosphorus or a compound of phosphorus. In a preferred embodiment of the invention a catalyst comprising platinum, phosphorus and chlorine with alumina is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable as a petrochemical feedstock.

Abstract: The present invention relates to a method of preparing an alumina hydrosol from an aluminum sulfate solution. The subject method comprises the steps of admixing a stoichiometric amount of a metal selected from the group consisting of calcium, strontium and/or barium in the form of a mixture of a hydrated chloride metal salt and a metal hydroxide with an aqueous aluminum sulfate solution, filtering the resulting metal sulfate precipitate from the above admixture, recovering a substantially sulfur-free aluminum-containing filtrate solution, admixing aluminum metal with the filtrate solution, and digesting the aluminum metal at digestion conditions with the filtrate solution to form an alumina hydrosol possessing the desired Al:Cl weight ratio.

Abstract: A new process for reforming hydrocarbons is disclosed. Also disclosed is a method for making a catalyst utilized in the process. The catalyst comprises a platinum group component and a phosphorous component with a porous support material. The catalyst is made by compositing a platinum group component with a porous support material and then contacting that composite with phosphorus or a compound of phosphorus to incorporate the phosphorous component. In a preferred embodiment of the invention a catalyst comprising platinum, phosphorus and chlorine with alumina is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable as a petrochemical feedstock.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a tin component, a phosphorus component and a halogen component with a porous carrier material. The platinum group, cobalt, tin, phosphorus and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 Wt. % tin, about 0.01 to about 5 wt. % phosphorus and about 0.1 to about 3.5 wt. % halogen. A specific example of the type of hydrocarbon conversion process disclosed is a process for the catalytic reforming of a low-octane gasoline fraction wherein the gasoline fraction and a hydrogen stream are contacted with the acidic multimetallic catalyst disclosed herein at reforming conditions.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a tin component, a phosphorus component and a halogen component with a porous carrier material. The platinum group, cobalt, tin, phosphorus and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tin, about 0.01 to about 5 wt. % phosphorus and about 0.1 to about 3.5 wt. % halogen. A specific example of the type of hydrocarbon conversion process disclosed is a process for the catalytic reforming of a low-octane gasoline fraction wherein the gasoline fraction and a hydrogen stream are contacted with the acidic multimetallic catalyst disclosed herein at reforming conditions.