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7612117 |
Emulsion breaking process
The invention pertains to the use of a class of acetylenic surfactants to resolve or break water and oil emulsions. The surfactants are of particular advantage in resolving crude oil emulsions of...
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7582200 |
Hydraulic system and a method of operating a hydraulic pump
A method of operating a hydraulic pump, comprising:
a. filling a hydraulic system oil reservoir with a hydraulic oil comprising:
i. a lubricant base oil having defined properties:...
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7488412 |
Honeycomb structural body, honeycomb filter, and method of manufacturing the structural body and the filter
There is disclosed a honeycomb structural body ( 1 ) comprising: a plurality of through channels ( 3 ) formed by a plurality of partition walls ( 2 ) in an axial direction. The honeycomb structural...
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7226533 |
Process for re-refining used oils by solvent extraction
A process to re-refine used petroleum oils by extraction with aliphatic solvents, wherein after eliminating the extract solvent, the process consists of the following treatments, (a) flash,...
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7208079 |
Process for the treatment of waste oils
A process for the treatment of waste oil comprises the steps of (a) supplying a stream of the waste oil to a dehydrator to dehydrate the waste oil and obtain a stream of dehydrated waste oil; (b)...
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6712954 |
Method for reprocessing waste oils, base oils obtained according to said method and use thereof
The invention relates to a method for reprocessing waste oils and producing high-grade base oils, whereby waste oil is treated by means of distillation, thin-film evaporation in a high vacuum,...
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6670309 |
Method and apparatus for preparing fluorine-based solvent
In preparing a purified fluorine-based solvent from a fluorine-based solution comprising a lubricant based on a fluororesin having an organic terminal group and a fluorocarbon-based solvent,...
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6485632 |
Apparatus and method for reclaiming waste oil for use as fuel for a diesel engine
An apparatus and method for reclaiming waste oil for use as fuel for a diesel engine. A mixing tank is provided, along with a waste oil transfer pump for supplying waste oil to the mixing tank, a...
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6395166 |
Method of reclaiming used motor oil for further use
A method of reclaiming used motor oil for further use is disclosed comprising (a) admixing used impurity laden motor oil with an effective amount of acetone as a flocculating agent and an effective...
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6316685 |
Method for separating solids from hydrocarbon slurries
Disclosed is a method for separating finely divided solids from a hydrocarbon slurry by using an additive that comprises a polymer and, optionally, an alkylbenzene sulfonic acid; and a composition...
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6274030 |
Filtration of feed to integration of solvent deasphalting and gasification
The invention is a process of removing solids, particularly catalyst fines, from an asphaltene-containing hydrocarbon liquid. The process comprises contacting an asphaltene-containing hydrocarbon...
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6191077 |
Method of cleaning liquid cooling lubricants
A method of cleaning mineral-oil-based liquid cooling lubricants in which the cooling lubricants, which are continuously circulated in metal-working plants, are cleaned by a deposition filtration...
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6174431 |
Method for obtaining base oil and removing impurities and additives from used oil products
A method for pretreating and re-refining used oil that requires only moderate heat and only one re-refining step. The pretreatment involves mixing the used oil with a basic solution and optionally...
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6117327 |
Deashing and demetallization of used oil using a membrane process
A method suitable for treating used oil to remove ash and metal contaminants therefrom with minimum oxidation of the oil, the metal including at least one of the components of iron, lead, copper,...
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6072065 |
Alkaline treatment method for refining used oils
An alkaline treatment method for refining used oils, wherein (a) the used oils are distilled; (b) the resulting distillate is treated with an alkaline agent in the presence of a solvent selected...
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6004434 |
Method of recycling cleaning solvent
A method of treating cleaning solvent used to clean mechanical parts. The method includes adding to the cleaning solvent a treating composition selected from the group of C 5 -C 14 alcohols, C 2 ...
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5855768 |
Process for removing contaminants from thermally cracked waste oils
A process is described for removing contaminants from thermally cracked waste oil, e.g. used motor oil. In the process the cracked waste oil is contacted with a solvent comprising methanol. The...
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5814206 |
Passive acid tar neutralization process
An improved process for neutralization of acid tars employs a bulk neutralizing agent having a specific gravity greater than that of the acid tar to be neutralized. The bulk neutralizing agent,...
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5795463 |
Oil demetalizing process
Metals are removed from used, contaminated oils, such as crankcase oils from cars, by a low temperature, batch tank process. The oil is hydrated by adding enough water to prevent premature...
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5770048 |
Method for removal of acid from compressor oil
An alcohol, specifically ethanol, methanol and isopropanol, is used to remove acid from a refrigeration system, a heat pump or an air conditioner. The alcohol vaporizes acid, primarily inorganic...
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5556548 |
Process for contaminated oil reclamation
A novel process and related apparatus for removing common contaminants from used motor oil. Propane, butane or similar solvent is mixed with the contaminated oil to form a solution. This solution...
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5478463 |
Method of reducing sludge and varnish precursors in lubricating oils
A method, composition and filter for reducing the presence of sludge or varnish precursors in a lubricating oil circulating within an internal combustion engine. The lubricating oil containing...
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5458765 |
Process of drying and removing solids from waste oil
This invention is a process comprising several steps for removing solid contaminants and for assisting in the dewatering of liquid hydrocarbons. For the purposes of this invention, solid...
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5447638 |
Method for flocculating finely divided solids suspended in nonpolar liquids
A method for flocculating finely divided particles suspended in nonpolar liquids, thereby facilitating the removal of these particles by sedimentation or filtration, by treating the contaminated...
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5332510 |
Process for cleaning rolling oils
Process for cleaning rolling oils which, when contaminated, contain rolling fines originating from metals being processed into semi-finished products in strip form, in particular light weight...
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5332507 |
Recovery of oil from waste oil fluids
The invention provides a method of recycling waste oil fluids including dispersed solids and emulsified water. According to the method, the waste oil is treated with an effective amount of a...
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5286380 |
Apparatus for contaminated oil reclamation
A novel process and related apparatus for removing common contaminants from used motor oil. Propane, butane or a similar solvent is mixed with the contaminated oil to form a solution. This solution...
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5244566 |
Process for deabsorbing oil from oil absorbent
A process is shown for deabsorbing oil from an oil absorbent material. A citric oil-in-water emulsion is formulated having an aqueous external phase and having a dispersed internal phase which is...
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5141628 |
Method of cleaning and regenerating used oils
Used oils, especially used lube oils, after rough filtering are mixed with an aqueous solution of water glass and an aqueous solution of polyalkylene glycol while stirring at elevated temperature,...
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5064523 |
Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge
Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge in a typical liquid phase hydrogenator with gases containing hydrogen,...
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5057207 |
Process for reducing halogen impurities in oil products
The present invention provides a method for reprocessing, particularly the dehalogenation, of oil products which involves a) treating the oil product at temperatures up to about 150° C. with an...
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5042617 |
Method of reducing the presence of sludge in lubricating oils
Sludge can be effectively removed from a lubricating oil by contacting the oil with a dispersant functional group immobilized on a substrate. This results in improved engine cleanliness and control...
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4948493 |
Method and apparatus for clarifying used lubricating oil
A tank is suspended in an enclosure and defines therebetween a chamber completely surrounding the tank. A fluid or air within the chamber is heated to create a thermal blanket and an oven-like...
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4941966 |
Process for the hydrogenative conversion of heavy oils and residual oils
A process for the hydrogenative conversion of mixtures of oil and organic waste products, comprising the steps of: (i) preparing a hydrogenation mixture comprising (a) a heavy oil, residual...
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4888108 |
Separation of fine solids from petroleum oils and the like
Dispersed solids, particularly fine peptized hydrophobic solids, present in some petroleum oils, bitumen solutions or concentrates, heavy oils and the like, may be removed by distributing an...
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4882041 |
Diluent substitution process
In a process for the treatment of heavy oil, in which a hydrocarbon diluent is added to the heavy oil stream, part of the diluent is substituted by an LPG liquid stream. The LPG stream is added to...
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4846957 |
Precipitation of asphaltene
Asphaltenes are separated from hydrocarbon oil by bringing the oil into contact with formic acid or a water-soluble organic acid consisting of carbon, hydrogen and oxygen and having at least two...
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4842715 |
Novel technique for rendering oily sludges environmentally acceptable
A process is disclosed for separating an organic material from a composition comprising said organic material intermixed with particulate solids, the process comprising advancing a light...
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4808299 |
Removal of copper and iron from oil
A process for removing copper and/or iron impurities from a liquid hydrocarbon-containing feed comprises contacting the feed with an aqueous treating agent comprising water-soluble alkali metal...
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4800015 |
Utilization of low rank coal and peat
Low rank coals including lignite, brown and sub-bituminous coals, and peat containing unacceptably high quantities of water are dried and enriched in BTU content. The mined low rank coal is crushed...
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4789460 |
Process for facilitating filtration of used lubricating oil
A process for filtering contaminants from oil is provided. A polyalkoxyalkylamine is admixed with the oil in an amount sufficient to improve the filtration rate thereof. The polyalkoxyalkylamine is...
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4786401 |
Liquid sludge disposal process
Hydrocarbon-containing liquid waste sludges from refinery waste streams can be disposed of by blending with the feedstock being passed to a fluid catalytic cracking unit. Preferably, the sludge is...
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4750990 |
Membrane separation of hydrocarbons using cycloparaffinic solvents
Heavy crude oils which contain metal contaminants such as nickel, vanadium and iron may be separated from light hydrocarbon oils by passing a solution of the crude oil dissolved in a...
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4748289 |
Method and apparatus for catalytic processing of light hydrocarbons and catalysts for use therein
A process and apparatus for converting light hydrocarbons, such as waste organic solvents, to a useful fuel having a high flash point. A mixture of light hydrocarbon and heavy oil, wherein the...
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4702804 |
Methods for electrochemical reduction of halogenated organic compounds
A process for the electrochemical destruction of halogenated organic compounds provides for the reduction of such compounds to levels below 1 ppm with carbonaceous cathodes which are principally...
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4623447 |
Breaking middle phase emulsions
Middle phase emulsions are broken by subjecting the emulsion to a first atmospheric distillation step to remove water, followed by a second vacuum distillation step to recover oil. The residue...
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4614597 |
Recovery of oil and sulfonate from filter cake
A process for recovering oil containing dissolved alkaline earth metal sulfonate from siliceous filter cakes containing such oils by mixing the filter cake with sufficient 0.5 to 16N sulfuric acid...
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4606903 |
Membrane separation of uncoverted carbon fiber precursors from flux solvent and/or anti-solvent
Flux solvents and/or pitch neomesophase anti-solvents used in the generation of carbon fiber precursors from pitch are separated from mixtures of such solvent and uncoverted carbon fiber precursors...
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4597882 |
Process for regenerating waste oils of synthetic lubricants containing fluorine atom
Waste oils of synthetic lubricants containing fluorine atom are admixed with a solvent containing fluorine atom compatible with the waste oils thereby causing contaminants contained in the waste...
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4539099 |
Process for the removal of solids from an oil
A process for removing suspended solids particularly difficultly filterable inorganic solids from an oil obtained as a refinery process bottom fraction from both steam and catalytic cracking units...
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