Abstract: Hydrocarbylaluminoxanes are made by introducing liquid water into the free space above an inert hydrocarbon solution of a hydrocarbyl aluminum compound (e.g. trimethyl aluminum) with intensive agitation while maintaining the reaction temperature at -80.degree. C. up to -10.degree. C.
Abstract: The reaction of aqueous hydrogen peroxide with tert-amines to yield tert-amine oxides is catalyzed by the addition of a promoter amount of ammonium carbonate, ammonium bicarbonate or ammonium carbamate or mixtures thereof.
Abstract: Mono- and di-lower alkylamines, e.g. methylamine or dimethylamine, are alkylated by reaction with C.sub.8-22 alcohol in the presence of hydrogen at a temperature of about 105.degree.-275.degree. C. in contact with a copper-zinc-alkaline earth metal base containing catalyst (e.g., CuO--ZnO--Ba(OH).sub.2) while removing water formed in the reaction.
Type:
Grant
Filed:
June 12, 1989
Date of Patent:
September 18, 1990
Assignee:
Ethyl Corporation
Inventors:
Pak Y. Fong, Kim R. Smith, Joe D. Sauer
Abstract: Alkenyl succinic anhydrides having a decreased amount of tar and color bodies are made by the reaction of an olefin with maleic anhydride in the presence of an arylfluorophosphite (e.g. 2,2'-ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite) and optionally a hindered phenolic antioxidant such as 2,4,6-tri(3,5-di-tert-butyl-4-hydroxybenzyl) mesitylene.
Abstract: A process for recovering BF.sub.3 from a BF.sub.3 -promoter catalyzed .alpha.-olefin oligomerization process is disclosed wherein the oligomer reaction product is water washed to extract BF.sub.3 as its hydrate and any water soluble promoter and the water extract is distilled to remove components boiling below BF.sub.3 hydrate overhead leaving a residual product which is at least 50 weight percent BF.sub.3 in the form of BF.sub.3 hydrate.
Abstract: Unsaturated .alpha.-olefin oligomers are topped to remove monomer and dimer and then distilled to remove a trimer fraction leaving a residue of tetramer, pentamer and higher oligomers. The trimer fraction is hydrogenated to form saturated .alpha.-olefin oligomer suitable for use as a lubricant.
Type:
Grant
Filed:
June 27, 1988
Date of Patent:
August 21, 1990
Assignee:
Ethyl Corporation
Inventors:
Thomas J. Dileo, Marshall B. Nelson, Matthew J. Lynch
Abstract: Trimethylaluminum is made by reacting a methyl halide with a tri-C.sub.2+ alkylaluminum, e.g. triethylaluminum, in the presence of a catalyst form by reacting bismuth metal with an alkylaluminum compound, e.g. trialkylaluminum, and an alkyl halide.
Abstract: Cyclopentadienyl manganese tricarbonyl compounds are made by reacting a mixture of 0.25-0.55 moles of manganese acetate and 0.45-0.55 moles of a bis-cyclopentadienyl manganese compound with about 0.5-2.1 moles of an alkyl aluminum compound (e.g. triethyl aluminum) in the presence of about 0.75-1.25 moles of an ether per mole of said alkyl aluminum compound and reacting the mixture with carbon monoxide at about 65.degree.-175.degree. C. and 300-1500 psig.
Type:
Grant
Filed:
January 12, 1990
Date of Patent:
August 7, 1990
Assignee:
Ethyl Corporation
Inventors:
Feng-Jung Wu, Bruce C. Berris, Donald R. Bell
Abstract: Amine oxides which have low levels of nitrosamines or are substantially-free of nitrosamines are made by reacting tert-amines with hydrogen peroxide in the presence of carbon dioxide and aluminum metal.
Abstract: Alkylaluminoxanes are made by conducting a solution of an alkylaluminum (e.g. trimethyl aluminum) in an inert solvent to the top of an upright hollow column and allowing the solution to flow as a thin film down the inner surface of the column while passing a wet inert gas (e.g. nitrogen) up through the column such that the wet inert gas contacts the thin falling film of alkyl aluminum solution forming alkylaluminoxane.
Type:
Grant
Filed:
February 21, 1989
Date of Patent:
June 26, 1990
Assignee:
Ethyl Corporation
Inventors:
Gerald Z. Smith, Jr., Scott A. Bottelberghe
Abstract: Synlubes having a consistently low pour point are made by feeding a promoter (e.g. water, alcohol) at a controlled rate over an extended time period to an .alpha.-olefin (e.g. 1-decene) in contact with boron trifluoride.
Type:
Grant
Filed:
June 27, 1988
Date of Patent:
June 19, 1990
Assignee:
Ethyl Corporation
Inventors:
Marshall B. Nelson, Matthew J. Lynch, Thomas J. DiLeo
Abstract: Alpha-olfins containing about 6-14 carbon atoms are made in a dual displacement loop ethylene/tri-lower alkyl chain growth process which includes, in one closed loop, an initial ethylene/triethyl aluminum (TEA) chain growth, C.sub.2-14 olefin separation, 2-stage ethylene displacment, C.sub.2-12 olefin separation and recycle of residual TEA and higher olefins back to the initial ethylene/TEA chain growth. A second closed loop starts with the same ethylene/TEA chain growth product followed by C.sub.4-14 olefin separation, C.sub.4-8 olefin displacement on the bottoms from C.sub.4-14 olefin separation, ethylene chain growth on the C.sub.4-8 olefin displacement product and recycle of this ethylene displacement product back to the olefin separation stage following the initial ethylene/TEA chain growth reaction.
Abstract: Aluminum phenoxide catalyst is removed from a phenolic alkylation mixture by adding 15-30 moles of water per mole of aluminum phenoxide to the alkylation mixture and holding at about 30.degree.-100.degree. C. for 10-60 minutes to form solids and heating the wet mixture to 120.degree.-160.degree. C. and holding at that temperature until filterable particulates form. The particulates can be readily filtered to obtain a substantially aluminum-free filtrate.
Type:
Grant
Filed:
March 8, 1989
Date of Patent:
May 29, 1990
Assignee:
Ethyl Corporation
Inventors:
Charles W. Matthews, Eric S. Batman, Jeffrey F. King
Abstract: Phosphorus compounds having at least one chlorine, bromine or iodine bonded directly to phosphorus are transhalogenated with fluorine by reaction with a hydrogen fluoride salt of a pyridine-type nitrogen base, e.g. pyridine hydrofluoride in an inert solvent.
Type:
Grant
Filed:
August 1, 1988
Date of Patent:
May 29, 1990
Assignee:
Ehtyl Corporation
Inventors:
Kestutis A. Keblys, Meng-Sheng Ao, Lester P. J. Burton
Abstract: Dodecene-1 and 1-tetradecene can be rectified from a mixture containing 1-dodecene and 1-tetradecene and triethylaluminum ("TEA") which has about the same normal boiling point as 1-dodecene and 1-tetradecene by feeding the above mixture to an intermediate point of a rectification column maintained under sufficient vacuum (e.g. 5-30 torr) such that the temperature at the intermediate feed point is about 250.degree.-260.degree. F. and the overhead distillation temperature is about 190.degree.-240.degree. F. The TEA which normally boils at about the same temperature as 1-dodecene and 1-tetradecene will exist as a dimer permitting part of the 1-dodecene and 1-tetradecene to distill overhead and most of the TEA to exit the bottom of the column.
Abstract: An additive composition of boronated phenolic antioxidant and anti-haze diol capable of complexing with boric acid as well as organic material protected by the additive composition. A hydrolytically stable additive composition comprising a boronated phenolic antioxidant and a diol member capable of reacting with boric acid formed as a hydrolysis product to form a stable ring structure soluble in a substrate. The additive composition prevents or cures a haze caused by hydrolysis.
Type:
Grant
Filed:
May 6, 1983
Date of Patent:
May 22, 1990
Assignee:
Ethyl Corporation
Inventors:
William E. Wright, Bryan T. Davis, Donald S. Matteson, Gordon G. Knapp
Abstract: Trimethylaluminum is made by gradually feeding a methyl halide to a reaction vessel containing a tri-C.sub.2+ alkylaluminum (e.g. triethylaluminum) and a catalyst formed from a bismuth compound and an alkyl or aryl organoaluminum compound thereby forming trimethylaluminum and C.sub.2+ alkyl halide and continuously distilling the C.sub.2+ alkyl halide, and any methyl halide that fails to react, from the reaction vessel thereby avoiding the accumulation of trialkylaluminum and alkyl halide which not only tends to form alkylaluminum halides but can be very hazardous on a large scale if a temperature excursion should occur.
Abstract: Alkylaluminoxanes are made in a continuous process by feeding an inert solvent solution of an alkyl aluminum compound and a water/inert solvent emulsion to a first reaction vessel maintained at about -20.degree. to 30.degree. C. and transferring reaction mixture to a second reaction zone at a rate which maintains a constant liquid level in the first reaction vessel and results in an average residence time of about 1-60 minutes.
Abstract: Alkyl groups in trialkyl aluminum are displaced by .alpha.-olefins in the presence of a nickel catalyst. The displaced alkyl group evolve as .alpha.-olefins. The displacement is fast and the catalyst is then poisoned with a catalyst poison such as lead to prevent undesired side reactions such as isomerization of .alpha.-olefins to internal olefins or dimerization to vinylidene olefins.
Abstract: Boron trifluoride wash water from an olefin oligomerization process can be disposed of in an environmentally safe manner by hydrolysis to substantially eliminate fluoroborate anions (BF.sub.4 --), mixing with CaO or Ca(OH).sub.2 and concentration in any sequence followed by mixing with portland cement and solidification. The cured cement is highly resistant to aqueous leach of boron and fluorine containing products.
Type:
Grant
Filed:
November 14, 1988
Date of Patent:
March 27, 1990
Assignee:
Ethyl Corporation
Inventors:
Ronny W. Lin, Howard W. Walker, Yung-Fu Huang