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JPS5422445B2 |
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JPS5495603A |
The process relates to the production of olefins by thermal cracking, in the absence of a catalyst, of a fuel value residual hydrocarbon feedstock which, prior to cracking, is extracted with a paraffinic solvent which is selective for th...
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JPS5421205B2 |
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JPS5419882B2 |
Lube oils of improved viscosity index are produced by subjecting a crude lubricating oil to hydrocracking, selectively fractionating the hydrocracked product to yield a product having the desired flash point and viscosity and recycling t...
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JPS5483905A |
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JPS5422413A |
Specialty oils of very low pour point and excellent stability, such as transformer oils and refrigerator oils, are produced from waxy crude distillates by solvent refining, catalytic dewaxing over a zeolite catalyst in the nature of zeol...
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JPS5347243B2 |
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JPS5347242B2 |
This invention provides a method for the preparation of insulating oil having good oxidation stability, electric characteristics and resistance to copper corrosion which comprises subjecting a distillate (stock) within a temperature rang...
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JPS5336843B2 |
1435350 Treating heavy oils UOP Inc 7 Sept 1973 [8 Sept 1972] 42117/73 Heading C5E A sulphurous, ash- and asphaltene-containing hydrocarbon charge 1 is treated by deashing at 2 with a selective solvent 3 to provide a a solvent-lean ash-c...
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JPS5355303A |
A process for making technical white oils in a single step hydrogenation and without the need for acid treating to meet white oil specification by hydrogenating a hydrocracked solvent extracted lubricating oil distilling between 650 DEG ...
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JPS5343705A |
A process for the production of lubricating oils from petroleum stocks containing significant quantities of sulfur and lubricating oil components boiling above about 650 DEG F. (343 DEG C.) by subjecting such stocks to a series of steps ...
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JPS5310082B2 |
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JPS5335706A |
A process is provided for the production of a stable, age-resisting mineral oil composition which comprises subjecting a paraffin base mineral crude oil to distillation to produce a distillate fraction boiling in the range of 270 DEG to ...
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JPS5244324B2 |
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JPS5244325B2 |
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JPS5243844B1 |
1311400 Lubricating oils TEXACO DEVELOPMENT CORP 16 Dec 1971 [28 Dec 1970] 58561/71 Heading C5E Lubricating oils are made from a vacuum distillate of a paraffin base crude oil by solvent refining to form a first raffinate which is dewaxe...
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JPS52130803A |
PURPOSE: To obtain purified wax having good hue, hue stability and light resistance by treating with an adsorbent and then purifying by hydrogenation a crude petroleum wax containing contamination which can not be removed by conventional...
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JPS5243845B2 |
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JPS5235036B2 |
Hydrotreating of normally liquid hydrocarbon feeds has long been practiced to convert organic sulfur compounds to hydrogen sulfide for subsequent removal by adsorption. It has now been found that hydrotreating of said feed stocks over a ...
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JPS5231362B2 |
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JPS5220482B1 |
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JPS5213524B2 |
Maximum conversion of black oil charge stocks to distillable hydrocarbon products is achieved through a combination process involving solvent deasphalting, solvent deresining and multiple-stage hydrocracking.
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JPS5148764B2 |
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JPS5144122B2 |
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JPS51136603A |
1504567 Paraffin adsorption and isomerization process UNION CARBIDE CORP 15 May 1975 [16 May 1974] 20513/75 Heading C5E An isomerization process comprises providing three fixed adsorbent beds, each having essentially the same adsorption ...
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JPS5142602B2 |
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JPS5142121B2 |
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JPS51111209A |
A process for reclaiming used hydrocarbon oils through prepurification by means of coagulation, adsorption, filtration, distillation, and after-treatment, wherein said oils are prepurified and then dehalogenated, fractionally distilled a...
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JPS5133563B2 |
1391720 Treatment of asphatene containing oils UNIVERSAL OIL PRODUCTS CO 17 Oct 1972 [18 Oct 1971 (2)] 47780/72 Heading C5E An asphatene-containing hydrocarbonaceous charge stock is converted by (a) introducing into a conversion zone tog...
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JPS5128643B1 |
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JPS5138305A |
Refrigeration oils are prepared by subjecting a crude lubricating oil fraction to mild hydrogenation, acid treating, dewaxing and clay percolation.
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JPS515403B1 |
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JPS513321B1 |
1310488 Refining lubricating oils TEXACO DEVELOPMENT CORP 9 Sept 1971 [6 Oct 1970] 42023/71 Heading C5E Lubricating oils are made by solvent extracting a vacuum distillate or deasphalted residuum to produce a raffinate and an aromatic ex...
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JPS5110806A |
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JPS519106A |
A naphtha is treated by heating in the presence of water, hydrogenating, and extracting desired aromatic components.
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JPS5037043B2 |
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JPS5035926B1 |
1,247,656. Refining lubricating- oil stocks. TEXACO DEVELOPMENT CORP. 9 April, 1970 [10 April, 1969], No. 16811/70. Heading C5E. Lubricating oil stocks are refined by (a) mild catalytic hydrogenating at 575-800 F. and 250-600 p.s.i.g. ...
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JPS5033803B2 |
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JPS5033802B2 |
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JPS50107003A |
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JPS50102602A |
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JPS5015002B1 |
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JPS503764B1 |
1,182,345. Hydrofinishing. GULF RESEARCH & DEVELOPMENT CO. 4 July, 1967 [14 July, 1966], No. 30635/67. Heading ('SE. A lubricating oil refining process for producing a series of hydrofinished lubricating oils of predetermined viscosities...
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JPS503327B1 |
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JPS4949009B1 |
1286383 Refining lubricating oil stocks SUN OIL CO 26 March 1970 [3 April 1969] 14670/70 Heading C5E A lubricating oil fraction is extracted with a solvent having preferential solubility for aromatics, the raffinate is hydrocracked to in...
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JPS49133337A |
Process for producing aromatic hydrocarbons, particularly benzene and/or toluene from a feed charge containing saturated and unsaturated hydrocarbons, by catalytic treatment of said charge with hydrogen, fractionation of the resulting pr...
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JPS4946122B1 |
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JPS4945768B1 |
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JPS4945767B1 |
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JPS49112904A |
A range of lubricating oils is produced by splitting a petroleum fraction boiling above 350 DEG C into light and heavy fractions, preferably at a cut point of 400 DEG -500 DEG C treating the light fraction or fractions by catalytic dewax...
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