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JPS6051518B2 |
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JPS60186590A |
Processing method for heavy crude oils contg. at least 7% of cpds. insol. inn-C5 hydrocarbons comprises: (i) atmospheric distn. (ii) extn. of the distn. residue (1 vol.) with aliphatic solvents (2-10 vols.) for removal of asphaltenes, C,...
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JPS6092390A |
After the removal of water and volatile constituents, the spent oil is subjected to an alkali treatment and, if necessary after separating off a gas oil fraction, distilled. In this distillation, pure oil is separated off as distillate i...
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JPS6060189A |
PURPOSE: To remove colored materials with simple equipment in a simple manner, by treating a colored material-contg. oil with an acid, removing pitch formed, applying voltage to the residual acid radical to ionize it and adsorbing it by ...
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JPS609549B2 |
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JPS59179588A |
PURPOSE: To obtain easily a naphthenic lubricating oil having a high viscosity and low acid value, by neutralizing a naphthenic crude oil, etc. fully with an excess aqueous solution of caustic alkali, and distilling the resultant treated...
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JPS59174688A |
PURPOSE: To separate and to purify a liquefied oil of coal simply, inexpensively and continuously, by passing the liquefied oil of coal through an adsorption column so that substances containing nitrogen and oxygen are removed, passing a...
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JPS5927792B2 |
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JPS5974185A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5945389A |
The recovery of hydrocarbon values from high metals content feeds can be carried out more efficiently via supercritical extraction with recycle of a portion of the asphalt product and proper control of the use of countercurrent solvent f...
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JPS592479B2 |
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JPS594686A |
A process for purifying hydrocarbonaceous oils containing heteroatom sulfur and heteroatom nitrogen compound impurities comprising the steps of:(1) reacting said hydrocarbonaceous oil with an oxidizing gas containing at least one nitroge...
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JPS58187487A |
PURPOSE: To separate and remove the finely divided ash from the coal liquefaction product, in high efficiency, by adding a specific acidic aqueous solution to the coal liquefaction product, stirring the mixture under heating, adding a wa...
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JPS58152090A |
PURPOSE: To carry out the collection and treatment of heavy oil, economically and efficiently, by separating crude oil drawn from an oil well with a pump into heavy oil, etc. in a precipitation tank, heating and distilling the heavy oil,...
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JPS5833911B2 |
25859 Abstract of the Disclosure An integrated process universally applicable for the reclaiming of used lubricating oils, regardless of the contaminants or previous additive systems contained therein, is provided to produce an intermedi...
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JPS5893788A |
PURPOSE: To effectively and easily separate oil and foreign matter in a sludge, by adding a chemical contg. a silicate and a polymer to an oil-contg. sludge and flocculating the sludge by causing aggregation and adsorption followed by pr...
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JPS5869288A |
An integrated method for refining a hydrocarbon distillate fraction such as kerosene which has sulfur-containing compounds by washing the fraction with an alkaline solution and then sweetening the resulting distillate by treating it with...
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JPS5863785A |
PURPOSE: To purify impurities, e.g. sulfur, even in a lubricating oil containing an additive for preventing the premature deterioration, by adding a detergent- dispersant in a specific proportion to the lubricating oil, and passing a DC ...
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JPS5857495A |
PURPOSE: To enhance low-temp. fluidity of a lubricating oil to a large extent, by bringing a paraffinic lubricating oil which has been subjected to dewaxing by means of a physicochemical dewaxing process into contact with a microorganism...
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JPS585958B2 |
Multiple-stage separation of a mixed-phase product effluent resulting from the hydrocracking and/or hydrorefining conversion of a hydrocarbonaceous charge stock. Reaction product effluent is initially separated in a high temperature, hig...
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JPS5817193A |
A process for reclaiming spent oil comprises the steps of removing water and light hydrocarbons, thermally treating the stripped oil, extracting it with a supercritical gas to insolubilize impurities and additives, separating the gas-ric...
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JPS584959B2 |
A re-refining process is described by which high-quality finished lubricating oils are prepared from used waste lubricating and crankcase oils. The used oils are stripped of water and low-boiling contaminants by vacuum distillation and t...
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JPS584759B2 |
A method for purifying and reclaiming used lubricating oils containing additives such as detergents, antioxidants, corrosion inhibitors, extreme pressure agents and the like and other solid and liquid contaminants by preferably first vac...
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JPS5757450B1 |
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JPS5747717B2 |
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JPS5747231B2 |
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JPS5746478B2 |
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JPS57155289A |
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JPS57149388A |
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JPS57139182A |
A hydrocarbon feed for use in a catalytic conversion process that utilizes a zeolite catalyst, and that contains a catalytically deleterious impurity, is refined by contact with a zeolitic sorbent. The invention is applicable to dewaxing...
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JPS57133188A |
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JPS57119985A |
Following the separation of bitumen from tar sands by the hot water process to produce an aqueous bitumen emulsion from which the bitumen froth is separated to leave aqueous tailings containing some incompletely separated bitumen, the in...
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JPS57117590A |
PURPOSE: To enable the reuse of oily sludge and liquid waste oil generated by the cleaning of an oil container as fuel oil, by separating the sludge from the waste oil, treating both materials separately, and mixing at a proper ratio. CO...
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JPS5729512B2 |
A catalytic process for treating a mercaptan-containing sour petroleum distillate is disclosed. The distillate is contacted with a weakly basic anion exchange resin to separate a portion of the mercaptan content and substantially all of ...
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JPS5729513B2 |
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JPS5729514B2 |
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JPS5720991B2 |
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JPS5711590B2 |
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JPS5711588B2 |
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JPS5738884A |
Procedure for de-amazing a mixed hydrocarbon food. Consists of the following stages: 1. Put the feed into an extraction area at a temperature next to 150c with a solvent. 2. Cool the disciplinary rich phase in aromaticos to form two phas...
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JPS576203B2 |
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JPS5651199B2 |
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JPS56151787A |
PURPOSE: A raffinate, which is obtained by solvent extraction of a paraffinic crude oil or a mixed crude oil under conditions, is solvent extracted again and the resultant extract is purified to produce an extremely good-quality naphthen...
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JPS5648924B2 |
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JPS5647235B2 |
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JPS5646518B2 |
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JPS5646517B2 |
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JPS5646202B2 |
A method of purifying triaryl phosphate to be used as electrical insulating oil, comprising a first step of washing the phosphate with the aqueous solution of alkali, a second step of diluting the phosphate with aromatic insulating oil, ...
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JPS5645517B2 |
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JPS5679196A |
The invention provides a process for the separation of contaminant material from contaminated oil comprising reacting the oil with an aqueous alkaline solution, such as an aqueous solution of sodium metasilicate, and separating the aqueo...
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