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JPS5946554B2 |
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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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JPS5940178B2 |
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JPS59159886A |
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JPS59109596A |
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JPS5920179A |
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JPS58159429A |
PURPOSE: To promote the decomposition of a thiophene, by decomposing the thiophene with metallic sodium in the presence of a hydrogen donor. CONSTITUTION: The decomposition of a thiophene, benzo[b]thiophene and dibenzothiophene present i...
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JPS5829945B2 |
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JPS5829990B2 |
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JPS5869288A |
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JPS5815166B2 |
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JPS5814250B2 |
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JPS581789A |
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JPS57195186A |
PURPOSE: A C5 fraction containing carbon disulfide is brought into contact with alkali sulfide in a polar solvent which is compatible to them to remove carbon disulfide, whereby the components inhibiting the polymerization of isoprene in...
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JPS576203B2 |
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JPS56118489A |
PURPOSE: To remove corrosive components easily at a high removal ratio, by washing the gas light oil containing the corrosive components against steel material such as H2S or the like by an aqueous alkali solution. CONSTITUTION: A benzen...
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JPS5695322A |
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JPS5693208A |
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JPS5688633U |
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JPS5686125A |
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JPS5679196A |
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JPS5665616A |
PURPOSE: To economically provide required chemicals by using a 2-phenoxy anthraquinone polysulfonic acid or its salts as the major component of oxidation-reduction chemical for wet desulfurization process. CONSTITUTION: Oxidaton-reductio...
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JPS5621782B2 |
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JPS5618612B2 |
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JPS569197B2 |
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JPS5618678A |
PURPOSE: To produce easily SnO2:Eu phosphor which emits more brighter light, by a method wherein a specified flux is added to a mixt. of SnO2 and Eu2O3 and the resulting mixt. is heat-treated. CONSTITUTION: 0.5W7wt% of CsCl as a flux is ...
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JPS55129490A |
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JPS55129488A |
PURPOSE: To regenerate a high-boiling waste oil, easily, by adding an alkaline aqueous solution and a lower alcohol to a high-boiling oil containing contaminants and surface active agents as impurities, and leaving the mixture at rest, t...
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JPS5515514B2 |
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JPS5519277A |
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JPS5518493A |
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JPS5440082B2 |
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JPS5439402B1 |
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JPS5436161B2 |
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JPS54142206A |
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JPS54141806A |
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JPS54131606A |
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JPS5422448B2 |
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JPS5439452A |
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JPS544903A |
PURPOSE: The acidic condensed water obtained on the thermal decomposition of municipal waste is neutralized to precipitate cellulosic oil (water-soluble portion of the oil formed on the thermal decomposition of municipal waste), which is...
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JPS54799A |
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JPS5348203B2 |
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JPS5348205B2 |
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JPS5347241B2 |
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JPS53143999A |
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JPS53138406A |
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JPS5343919B2 |
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JPS5336484B2 |
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JPS5336483B1 |
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JPS5335962B1 |
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