Anderson Development Co.

Ak Research Company

Jeffrey G Meyer

Amos R Anderson

Glennis L Phipps

Process for the production of alkoxysilanes of the formula HSi(OR) , where R is an alkyl group containing 1 to 6 carbon atoms, and/or alkyl orthosilicates of the formula Si(OR) , where R is an alkyl group containing 1 to 6 carbon atoms. In a preferred embodiment, the process comprises reacting silicon metal with an alcohol in a suitable solvent in the presence of a cupric bis(diorganophosphate) catalyst. A polymeric form of ethyl orthosilicate, a by-product of the reaction, is the preferred solvent. The production of triethoxysilane and tetraethyl orthosilicate is preferred, with triethoxysilane being particularly preferred.

Process for the manufacture of alkoxysilanes and alkoxy orthosilicates

This invention comprises novel organic-solvent-soluble nickel bis-diorgano-orthophosphates and their preparation by the reaction of certain simple salts or esters of divalent nickel with certain non-aromatic triorgano orthophosphates free of aliphatic unsaturation and separation of the novel compounds. The simple salts or esters include preferably the halides, nitrates and acetates of divalent nickel. This invention further comprises the use of these novel compounds, preferably in solution, as catalysts. When used in conjunction with alkyl aluminum halides, controlled oligomerization of ethylene, propylene and other olefins is achieved with the formation of polymers with low degrees of polymerization, e.g. 2 to 10, preferably no more than about 6 mers. When certain vanadium catalysts are added to these combined catalysts, high polymers of such monomers are achieved with significant residual aliphatic unsaturation.

Nickel bis-diorgano-orthophosphates their preparation and use

Novel organic-solvent-soluble nickel bis-diorgano-orthophosphates are prepared by the reaction of certain simple salts or esters of divalent nickel with certain non-aromatic triorgano orthophosphates free of aliphatic unsaturation. The simple salts or esters include preferably the halides, nitrates and acetates of divalent nickel. These novel compounds, preferably in solution, are used as catalysts. When used in conjunction with alkyl aluminum halides, controlled oligomerization of ethylene, propylene and other olefins is achieved with the formation of polymers with low degrees of polymerization, e.g. 2 to 10, preferably no more than about 6 mers. When certain vanadium catalysts are added to these combined catalysts, high polymers of such monomers are achieved with significant residual aliphatic unsaturation.

Nickel bis-organo-orthosphosphate combination catalyst

The reaction product of a chromium tris-diorganoorthophosphate and an alkyl aluminum halide is a catalyst for olefin polymerization and for alkylation of aromatic hydrocarbons with olefins.

Chromium tris-diorgano-orthophosphate-alkyl aluminum halide catalysts

This invention comprises the novel composition formed by mixing (A) a chromium tris-diorgano-orthophosphate of the general formula Cr[OP(O) (OR).sub.2 ].sub.3 wherein R can be an alkyl, alkoxyalkyl or cycloalkyl group of one to about eight carbon atoms and the chlorinated and brominated derivatives thereof, (B) an alkyl aluminum compound of the general formula R'.sub.2 R'Al in which each R' and R' can be an alkyl group of 1 to 6 carbon atoms and each R' can also be a hydrogen atom, and (C) a halogenated olefin of four to about eight carbon atoms containing at least four halogen atoms at least two of which are attached to doubly bonded carbon atoms. This invention also comprises the use of this novel combination as a catalyst for the polymerization of ethylene alone or with propylene and other olefins. This invention also comprises the polymer products prepared by said method.

Chrome catalyst

The reaction product of a chromium tris-diorgano-orthophosphate and an alkyl aluminum halide is a catalyst for olefin polymerization and for alkylation of aromatic hydrocarbons with olefins.

Growing community of inventors

Adrian, MI, United States of America

Jeffrey G Meyer