New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of molybdenum, and (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal other than molybdenum or a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of molybdenum, and (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal other than molybdenum or a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component comprising at least one Group III A (IUPAC 13) component, and at least one platinum-group metal component which is preferably platinum.
Isoparaffins and olefins are alkylated in the liquid phase by contact with a solid superacid such as sulfated zirconia containing heteropolyacids or polyoxoanions. High octane number blending components for motor fuel and other valuable products are obtained, with important advantages over processes using liquid acid catalysts, and over vapor phase alkylation with solid superacid catalysts.
Isoparaffins and olefins are alkylated by contact with a solid superacid such as sulfated zirconia optionally containing added metals, and containing added heteropolyacids (HPA's) or polyoxoanions (POA's). The presence of HPA's or POA's in the solid superacid catalyst results in higher yields of desired high-octane components in the product mixture than are obtained in the absence of HPA's or POA's.
A catalyst for the production of acrylic acid by the vapor-phase catalytic oxidation of acrolein or acrolein-containing gas and a method for the production of acrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a catalyst having Mo and V as essential components and used for the production of acrylic acid by vapor-phase catalytic oxidation of acrolein and (B) a solid acid having acid strength (Ho) of not more than -11.93. Since this catalyst excels in catalytic activity and service life, it allows acrylic acid to be produced stably at a high yield for a long time.
