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Patent Searching and Data


Matches 451 - 500 out of 528

Document Document Title
JPS5621782B2  
JPS5618612B2  
JPS569197B2  
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 ...  
JPS55129490A
Disclosed is a process for reducing the fouling in a heat exchanger in which a hydrocarbon stream is heated or cooled as it passes through the heat exchanger. From 1 to 500 parts per million of a polyalkylene amine is added to the stream...  
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...  
JPS5515514B2  
JPS5519277A
Processes for the absorption and subsequent removal as sulphur of hydrogen sulphide from gases, gas mixtures and liquid hydrocarbons in which the material containing hydrogen sulphide is washed with an aqueous alkaline solution containin...  
JPS5518493A
A process for the removal of hydrogen sulphide from gases or liquid hydrocarbons, comprising contacting the gas or liquid hydrocarbon with an aqueous alkaline solution, preferably having a pH value of 8 to 10, comprising (a) an anthraqui...  
JPS5440082B2  
JPS5439402B1  
JPS5436161B2  
JPS54142206A
A process for the reprocessing of used lubricating oil wherein said oils are treated with a mixture of potassium hydroxide and sodium hydroxide.  
JPS54141806A  
JPS54131606A
A method for reprocessing used lubricating oils is disclosed wherein the oil is dried, treated with finely dispersed sodium metal at elevated temperature, the remaining free or organically bound metal is decomposed by means of an active ...  
JPS5422448B2  
JPS5439452A  
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...  
JPS54799A  
JPS5348203B2  
JPS5348205B2  
JPS5347241B2  
JPS53143999A  
JPS53138406A
For removing acids from liquid hydrocarbons, these are treated with an aqueous base. The mixture of liquid hydrocarbons with the aqueous alkali is introduced into a bed which contains a hydrophilic medium, so that the aqueous phase dropl...  
JPS5343919B2  
JPS5336484B2  
JPS5336483B1  
JPS5335962B1  
JPS53117849U  
JPS53100970A
PURPOSE: To utilize an oil-and-water removed sludge as a sintering material and oil separated as a fuel respectively, by treating an oil contg. hot rolling sludge with a detergent based on an alkali cpd. contg. a specified amount of diss...  
JPS53100969A
PURPOSE: To remove oil from an oil contg. hot rolling sludge without using any hydroextractor, by treating the oil contg. hot rolling sludge with an aq. soln. which contains a detergent consisting of a surfactant and/or a builder not con...  
JPS5394304A  
JPS5336503A
PURPOSE: To desulfurize a heavy oil without causing degrading the quality, by adding an alkali metal hydroxide to the petroleum heavy oil having a specific carbon residue value, and heat-treating the mixture.  
JPS534900A  
JPS52123404A  
JPS52119606A  
JPS52119605A  
JPS5238044B2  
JPS52112609A
PURPOSE: In the desulfurization of S-containing hydrocarbon using an alkali agent, to increase the desulfurization rate by treating the crude oil with an oxidizing agent prior to addition of the alkaline substance, and then separating th...  
JPS5233902A
PURPOSE: To regenerate a highly deteriorated waste acid oil which cannot be purified by the conventional sulfuric acid washing, by neutralizing the acid oil containing sulfuric acid sludge with neutralizing agent.  
JPS526704A
PURPOSE: Specific amine compound is added to crude oil to neutralize inorganic chlorides in the oil.  
JPS5144124B2  
JPS5139645B2  
JPS51123202A  
JPS51111207A
PURPOSE: The titled process that can prevent the abrasion of equipments as well as the air pollution by sulfur dioxide gas by discharging ammonia into the neutralizing vessel.  
JPS5191817A  
JPS5127444B2  
JPS5127445B2  
JPS5115840B2  
JPS5152401A  

Matches 451 - 500 out of 528