Methanol-to-hydrocarbons: catalytic materials and their behavior

Lewis Acids: From Conventional Homogeneous to Green Homogeneous and Heterogeneous Catalysis

Organic catalysis over zeolites: A perspective on reaction paths within micropores

Shape-selective catalysis in zeolites

Inorganic molecular sieves: Preparation, modification and industrial application in catalytic processes

A method is disclosed for the conversion of synthesis gas to a liquid hydrocarbon product having a boiling range of less than 400° F. at a 90% overhead utilizing a novel catalyst prepared from a water-insoluble organic iron compound. The novel method involves contacting synthesis gas with a single particle catalyst containing iron, a crystalline acidic aluminosilicate zeolite having a silica-to-alumina ratio of at least 12, a pore size greater than about 5 Angstrom units, and a constraint index of about 1 to 12, and a matrix. The catalyst does not contain promoters.

Conversion of synthesis gas with iron-containing catalyst

This specification discloses, as a composition of matter, a phosphorus-containing zeolite and discloses a method for preparing it. The composition is a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, and containing phosphorus incorporated with the crystal structure thereof in an amount of at least about 0.78 percent by weight. The specification also discloses the use of the composition as a catalyst for the conversion of aliphatic compounds.

Conversion utilizing a phosphorus-containing zeolite catalyst

A novel use for sorbents involving the selective removal of heavy metals from liquid streams has been discovered. More specifically it has been discovered that these sorbents selectively remove alkyl lead moieties from gasoline. The sorbents are comprised of metal halides (preferably tin tetrachloride or antimony pentachloride) bonded to a suitable substrate through at least one amine or alkyl halide functional group. The sorbents can be effectively regenerated.

Sorbent for removal of heavy metals

A carbonylation process is provided for conversion of olefinically unsaturated hydrocarbons to a mixture of esters or acids with an increased ratio of normal:iso (i.e., straight: branched) ester or acid by reaction with carbon monoxide and a hydroxylic compound, said process being carried out in the presence of a palladium salt complexed with a phosphine ligand as a catalyst and tin cocatalysts or promoters. For example, the catalyst may be palladium dichloride bis(triphenylphosphine) and the tin cocatalyst or promoter present may be stannous chloride dihydrate.

Selective carbonylation of olefinically unsaturated hydrocarbons using palladium-phosphine catalysts promoted with tin salts

This specification discloses a process for the alkylation of olefins. The olefins are alkylated by contacting in the presence of an alkylating agent with a catalyst. The catalyst comprises a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, and containing phosphorus incorporated with the crystal structure thereof in an amount of at least about 0.78 percent by weight. The zeolite, preferably, also has a dried crystal density of not less than about 1.6 grams per cubic centimeter. Olefins that may be alkylated include ethylene, propylene, butene-2 and isobutylene. Alkylating agents include methanol, dimethyl ether, and methyl chloride.

Stephen A. Butter

Papers

Conversion of synthesis gas with iron-containing catalyst

Conversion utilizing a phosphorus-containing zeolite catalyst

Sorbent for removal of heavy metals

Selective carbonylation of olefinically unsaturated hydrocarbons using palladium-phosphine catalysts promoted with tin salts

Alkylation of olefins