The present disclosure relates to catalyzed gas-phase dehydrochlorination of a pentachloropropane to form a tetrachloropropene with high selectivity and purity.

A dehydrochlorination process is disclosed. The process involves contacting R.sub.fCHClCH.sub.2Cl with a chromium oxyfluoride catalyst in a reaction zone to produce a product mixture comprising R.sub.fCClCH.sub.2, wherein R.sub.f is a perfluorinated alkyl group.

Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C.sub.6-C.sub.7 paraffins.

Disclosed is the use of a metal catalyst or catalyst precursor that catalyzes the isomerization of an unsaturated fatty acid, unsaturated fatty acid derivative, or an unsaturated triglyceride. Also disclosed is the use of a metal catalyst or catalyst precursor that catalyzes the decarboxylation of an unsaturated organic compound. Also disclosed is the use of a catalyst or catalyst precursor for the dual function isomerization and decarboxylation of an unsaturated fatty acid to an unsaturated organic compound.

The disclosure relates to a method for hydrofluorination of an olefin of the formula: RCXCYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, wherein X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C.sub.1-C.sub.6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C.sub.1-C.sub.6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo, comprising reacting the olefin with HF in the liquid-phase, in the presence of SbF.sub.5, at a temperature ranging from about 30 C. to about 65 C. and compositions formed by the process.

The present invention discloses processes for oligomerizing an olefin feedstock containing C.sub.4 to C.sub.20 alpha olefins using a catalyst system containing a metallocene compound, an organoaluminum compound, and a suspension of a chemically-treated solid oxide. The liquid medium for the suspension of the chemically-treated solid oxide can be an alpha-olefin oligomer product formed by the oligomerization process.

The present invention relates to a process for producing aromatics, p-xylene and terephthalic acid. The process for producing aromatics comprises a step of contacting an oxygen-containing raw material with an aromatization catalyst, under aromatization reaction conditions, to produce aromatics. The process for producing aromatics has an advantage of high yield of carbon as aromatics.

The present invention discloses processes for oligomerizing an olefin feedstock containing C.sub.4 to C.sub.20 alpha olefins using a catalyst system containing a metallocene compound, an organoaluminum compound, and a suspension of a chemically-treated solid oxide. The liquid medium for the suspension of the chemically-treated solid oxide can be an alpha-olefin oligomer product formed by the oligomerization process.

Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C.sub.6-C.sub.7 paraffins.

The present invention discloses processes for alkylating an aromatic compound, such as benzene or toluene, using a chemically-treated solid oxide. Suitable chemically-treated solid oxides include fluorided silica-coated alumina and fluorided-chlorided silica-coated alumina.