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7497943 |
Additives to enhance metal and amine removal in refinery desalting processes
It has been discovered that metals and/or amines can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains...
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7473795 |
Blends of quinone alkide and nitroxyl compounds as polymerization inhibitors
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of:
A) at least one nitroxyl...
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7473345 |
Processes for making lubricant blends with low Brookfield viscosities
Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The...
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7371906 |
Process for photo-oxidative stability improvements
A process for improving the stability to photo-oxidation of a polycyclic aromatic compound having at least two polymorphic forms comprises treating a first polymorph with one or more solvents to...
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7332070 |
Method of preventing heat exchanger fouling
A specific nonionic surfactant is added to a component mainly comprising hydrocarbons before passing through a heat exchanger in a petrochemical plant or a polyolefin production plant, whereby...
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7252755 |
Viscosity modification of heavy hydrocarbons
A low-viscosity, high-softening point heavy hydrocarbon material having a viscosity-reducing amount of at least one biodiesel material dissolved in a heavy hydrocarbon, and a method for producing...
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7094331 |
Viscosity modification of heavy hydrocarbons using dihydric alcohols
A low viscosity, high softening point heavy hydrocarbon material having a viscosity reducing amount of at least one dihydric alcohol dissolved therein, and a method for producing such heavy...
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7012046 |
Drag reducing agent slurries having alfol alcohols and processes for forming drag reducing agent slurries having alfol alcohols
A composition including a polyalphaolefin and at least one alfol alcohol that function as drag reducing agent slurries and a process for the preparation of the drag reducing agent slurries are...
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6989357 |
Alcohol absorbed polyalphaolefin drag reducing agents
A composition including an alcohol absorbed polyalphaolefin that functions as a drag reducing agent and a process for the preparation of the drag reducing agent are disclosed. The process includes...
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6987207 |
Hydrocarbonaceous composition
The present invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an additive composition comprising soy methyl...
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6960279 |
Method for stabilizing vinyl aromatic monomers using selected polymerization inhibitors and polymers prepared therewith
Disclosed is the observation that 7-aryl-quinone methides and 4-tert-butylcatechol, when used in combination in a vinyl aromatic monomer to inhibit polymerization,do not inhibit polymerization to...
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6849581 |
Gelled hydrocarbon compositions and methods for use thereof
Gelled organic compositions and methods for using same. The gelled compositions may be liquid organic fluids, such as gelled liquid hydrocarbons, formed from a mixture of an organic-base fluid, a...
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6841061 |
Antigelling agent for hydrocarbon mixture containing conjugated diene and method of preventing clogging of apparatus for separating and purifying the mixture
An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the...
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6835288 |
Method for preventing undesired polymerization in a mixture of substances containing ethylenically unsaturated compounds
A process for preventing undesired polymerization is conducted by maintaining an effective concentration of a stabilizer which comprises N-oxyl radicals in a mixture containing ethylenically...
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6833484 |
Inhibiting oxidation of a Fischer-Tropsch product using petroleum-derived products
The present invention relates blended hydrocarbonaceous products comprising Fischer Tropsch derived products that resist oxidation and to methods of inhibiting oxidation in Fischer Tropsch...
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6803492 |
Additives based on components present in petroleum for improving the cold flow properties of crude and distillate oils
The invention relates to an additive for improving the cold-flow properties of crude and distillate oils, where the additive is obtainable by extraction of crude oil with supercritical gas.
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6797846 |
Fibrous crystal aggregates, preparation method thereof and use thereof
A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution....
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6776821 |
Fixing material for gaseous hydrocarbon and use thereof, and method for solidifying hydrocarbon
A material for fixing gaseous hydrocarbon containing fibrous crystal aggregates formed by precipitating by making a metal aliphatic carboxylate dissolve completely in pure water to give a solution,...
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6723888 |
Humidification of hydrocarbon mixtures for use in polymer synthesis
A humidification system (A) for humidifying a dry hydrocarbon stream includes a column ( 10 ) which defines an interior cavity ( 20 ). The cavity is partially filled with a bed ( 12 ) of a packing...
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6717021 |
Solvating component and solvent system for mesophase pitch
A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of...
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6638417 |
Traction drive fluid
A traction drive fluid is provided containing a naphthenic compound represented by the formula: wherein R 1 is an alkyl group having 1 to 8 carbon atoms, R 2 through R 4 are each...
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6570045 |
Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into...
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6506806 |
Reduction of surface tension
A composition for reducing surface tension comprising from about 0.1% to about 0.5% by weight of a hydrocarbon surfactant and from 0.0001% to about 0.3% by weight of a fluorocarbon surfactant,...
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6482243 |
Fuel reformulator
The present invention is directed to a composition for use in a combustion engine either as a fuel additive or as an additive for a crankcase lubricant. The composition may include a...
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6461421 |
Hydrocarbonaceous composition containing odor suppressant
This invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an aldehyde or a ketone, and a carboxylic acid ester.
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6410810 |
Handling method of (fluoroaryl) borane compound and preparing method of hydrocarbon solution
A mixture of bis- and tris(fluoroaryl)borane compounds expressed by General Formula (1) below is handled in the form of a slurry made with a hydrocarbon solvent: where each of R 1 , R 2 , R 3 ,...
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6409887 |
Polymerization inhibitor
A monomer composition, stabilized against premature polymerization, comprising: a) an ethylenically unsaturated monomer or mixture of monomers polymerizable by free radical initiation, and b) an...
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6379588 |
Stabilized monomer composition
A monomer composition, which contains A) vinyl-containing monomers in which a heteroatom selected from the group consisting of the halogens, nitrogen, oxygen, sulfur and silicon is present on the...
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6342647 |
Vinyl monomer polymerization inhibition using hindered hydroxylamines
It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains a hindered hydroxylamine, and,...
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6339051 |
Diesel engine cylinder oils
Diesel engine cylinder oils of improved cleanliness and load carrying ability and reduced port deposit characteristics for use in marine and stationary slow speed diesel engines are based on medium...
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6297413 |
Antifoaming agents
Paraffinic oils which comprise in the range of from 45% to 100% basis mass per mass of one or more paraffinic hydrocarbon(s) and have an average molecular weight in the range of from 100-200 are...
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6277269 |
Producing pipelineable bitumen
A bitumen is rendered pipelineable by partially hydroconverting the bitumen and then adding sufficient diluent to the partially hydroconverted bitumen to provide a mixture having an API gravity at...
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6262323 |
Polymerization inhibition of isoprene
It has been discovered that the polymerization of diene compounds, such as isoprene, may be inhibited by the addition of a composition that contains a at least one phenylenediamine, at least one...
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6258987 |
Preparation of alcohol-containing gasoline
A process for controlling the composition of a subgrade gasoline so that the subgrade will yield an alcohol-containing gasoline which precisely meets desired specifications when mixed with the...
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6248699 |
Gelling system for hydrocarbon fluids
The present invention relates to a gelled hydrocarbon fluid useful as a fracturing fluid in subterranean formations comprising at least one gelling agent which is a salt of a carboxylic acid having...
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6232518 |
Removal of benzene from organic streams using cyclodextrins
A method for separating benzene from a hydrocarbon mixture containing benzene and at least one other organic material is carried out by treating the hydrocarbon mixture with at least one...
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6231662 |
Surface treatments for titanium dioxide and other industrial pigments
An additive for enhancing the performance of industrial pigments. The additive improves dispersibility and is the reaction product of an amine, a fatty amine, and a polybasic acid.
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6143205 |
Mixtures containing monomers and stabilizers
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6022488 |
Heat transfer fluid containing 1,1-diphenyl ethane and diphenyl oxide
A heat transfer fluid having high heat capacity, high thermal loading capacity, low viscosity and low freezing point includes diphenyl oxide and 1,1 diphenyl ethane in broad proportions.
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6004361 |
Low emissions diesel fuel
A low emission diesel fuel suitable for use in underground diesel-engined mining equipment comprises a straight run distillate fuel having an end point not greater than 300° C. (about 660° F.), a...
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6002056 |
Colorless petroleum markers
Petroleum products are marked with a marker such as thymolphthalein or cresolphthalein. When the marked petroleum products are contacted with a developing reagent, a color develops.
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5990327 |
Use of aminotriarylmethanes for marking hydrocarbons and novel aminotriarylmethanes
Use of aminotriarylmethanes of the formula ##STR1## where the ring A may be benzofused, and R 1 and R 2 are each substituted or unsubstituted C 1 -C 13 -alkyl or substituted or unsubstituted...
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5910469 |
Crude oil composition comprising an alkylphosphonate antifouling additive
Alkylphosphonate ester compounds or acids thereof are disclosed as effective fouling inhibitors in liquid hydrocarbonaceous medium undergoing processing at elevated temperatures.
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5886241 |
Methods and compositions for inhibiting the polymerization of ethylenically unsaturated monomers
The polymerization of an ethylenically unsaturated monomer such as isoprene, butadiene and acrylonitrile is inhibited during storage or handling thereof by the addition of a dihydroxycinnamic acid...
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5869717 |
Process for inhibiting the polymerization of vinyl aromatics
Applicants have developed a process for inhibiting the polymerization of vinyl aromatic compound during the distillation of the vinyl aromatic compounds. The process involves adding to the vinyl...
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5851272 |
Non-oil organic spray wax compositions
Automobile spray wax compositions incorporating an aromatic compound having at least one of two linear C 8 -C 20 alkyl substituents, and a preferred embodiment thereof including a compound...
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5841010 |
Surface active agents as gas hydrate inhibitors
This invention is directed toward a method for inhibiting the formation (nucleation, growth and agglomeration) of clathrate hydrates. The method comprises adding into a mixture comprising hydrate...
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5824829 |
Hydrocarbon viscosity inhibitor and inhibiting method
An inhibitor to suppress or inhibit the viscosity increase of a hydrocarbon, e.g. in a bottom section of an oil quench tower, featuring the use of a sulfonic acid and/or its salt as an effective...
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5773782 |
Method and apparatus for the machining of metal by spark erosion
A dielectric fluid for the machining of metal by spark erosion which contains saturated aliphatic hydrocarbons with a proportion of aromatic hydrocarbons which is lower than one percent in weight...
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5756870 |
Methods for inhibiting the polymerization of ethylenically unsaturated monomers
The polymerization of an ethylenically unsaturated monomer such as isoprene and butadiene is inhibited during storage or handling thereof by the addition of a dihydroxycinnamic acid or derivative...
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