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Patent Searching and Data


Matches 701 - 750 out of 902

Document Document Title
JPS6052190B2  
JPS6051518B2  
JPS60186590A  
JPS60106885A
PURPOSE: To improve the yield of a light oil component, by separating thermal reforming reaction products into gas, light oil and heavy residual oil, subjecting at least part of the residual oil to a gravity precipitation treatment and a...  
JPS60106884A
PURPOSE: To improve the yield of an oil component, by separating thermal reforming reaction products into gas, light oil and heavy residual oil, and subjecting the residual oil to a gravity precipitation treatment to recover a liquid con...  
JPS6092390A  
JPS6092389A  
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 ...  
JPS609549B2  
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...  
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...  
JPS5927792B2  
JPS5974185A  
JPS5966494A
PURPOSE: To recover oil components free from impurities such as deteriorated substances, sludge, admixtures, etc. at all, by purifying coarsely a waste oil of flon synthetic lubricant, extracting it with petroleum ether. CONSTITUTION: Im...  
JPS5945389A  
JPS592479B2  
JPS594686A  
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...  
JPS58180435A
PURPOSE: To recover easily indene of high purity, by distilling a tar type light oil containing the indene to obtain a fraction in which the indene is concentrated to some extent, washing the resultant fraction with an alkali, and distil...  
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,...  
JPS5833911B2  
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...  
JPS5869288A  
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 ...  
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...  
JPS5852386A
PURPOSE: To stably obtain raw material pitch with high modulus of elasticity for preparing carbon fiber, by extractiong a deasphalted oil obtd. by the vacuum distillation and solvent deasphalting of a heavy petroleum residue, or extracti...  
JPS5847089A  
JPS5832698A
PURPOSE: A used hydraulic oil from which Fe has been removed is purified by filtration and centrifugation and combined with the new oil, at the same time, its pH is measured to check the oil deterioration, thus regenerating a hydraulic o...  
JPS585958B2  
JPS5817193A  
JPS584959B2  
JPS584759B2  
JPS57198789A
PURPOSE: To carry out the fractional distillation and desulfurization of crude oil, economically, by increasing the pressure of a crude oil after the pretreatment such as desalination, and separating a light fraction having desired boili...  
JPS5757450B1  
JPS57195791A  
JPS57182396A  
JPS57179284A
PURPOSE: To obtain a hydrocarbon substance as a raw material for carbon black, particularly suitable for reinforcing rubber, by distilling road tar, treating the resultant bottom fraction with a solvent, and distilling the treated fracti...  
JPS5747717B2  
JPS5747231B2  
JPS5746478B2  
JPS57155289A  
JPS57149388A  
JPS57139182A  
JPS57133188A  
JPS57119985A  
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...  
JPS5729512B2  
JPS5729513B2  
JPS5729514B2  
JPS57100190A  

Matches 701 - 750 out of 902