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Patent Searching and Data


Matches 501 - 550 out of 573

Document Document Title
JPS5945398A
PURPOSE: To purify crude lubricating oil in high purity industrially advantageously and to enable the repeated use of lubricating oil, by blowing an inert gas into a crude lubricating oil containing a low-boiling organic solvent while he...  
JPS5910655B2  
JPS5910259B2  
JPS598387B2  
JPS596185B2
A catalyst comprising a metal phthalocyanine composition of matter is prepared by reacting a 4-sulfophthalic acid with a metal salt, an ammonium donor and a phthalic anhydride or derivative thereof at 250 to 325 C for one-half to ten hours.  
JPS591713B2
Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is a metal complex synthesized from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and c...  
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...  
JPS594685A
PURPOSE: To provide the titled apparatus free from the leak of oil, controllable by simplified electrical means, and composed of a bottom-closed cylindrical casing, a plurality of porous permanent magnets arranged in said casing, and a f...  
JPS593140U  
JPS58189040A
A catalyst suited for use in the sweetening of petroleum distillates (by oxidizing mercaptans to disulfides) which is formed of a metal complex of a polyaminoalkylpolycarboxylic acid deposited directly on a basic anion exchange resin. Th...  
JPS5829945B2
Compounds having the general formula: I where A is a C1-C4 straight or branched chain alkylene radical, B is a -SO3M, -CO2M, -PO3HM or -PO3M2 grouping, M is hydrogen, or a cation giving a water-soluble derivative, R is hydrogen, a cation...  
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...  
JPS5859285A
A sour hydrocarbon sweetening process for converting mercaptans in the sour hydrocarbon to disulfides comprises contacting the sour hydrocarbon in the liquid phase with a particulate catalyst containing copper metal, copper oxide and/or ...  
JPS5815166B2  
JPS5811471B2
The sweetening of a mercaptan- containing sour petroleum distillate by contacting with a supported metal phthalocyanine catalyst in the presence of an alkaline reagent at oxidation conditions is carried out using a catalyst which has bee...  
JPS57164188A  
JPS5737378B2
A process is disclosed for the regeneration of a solid metal phthalocyanine catalyst bed system which comprises a metal phthalocyanine impregnated on a charcoal support, said regeneration comprising (a) washing said charcoal support with...  
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 ...  
JPS5727774Y2  
JPS5718936B2
Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is a metal complex synthesized from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and c...  
JPS5715836B2  
JPS5718784A
PURPOSE: To specific polyvalent metal is added to a petroleum fraction to inhibit the formation of contaminant such as gums and the remaining of unreacted peroxides and remove the arsenic included efficiently. CONSTITUTION: A petroleum f...  
JPS575222B2  
JPS57192A
The process for the catalytic oxidation of hydrocarbons and more particularly of petrolatum of similar raw material having a high content in microcrystalline waxes comprises introducing a molecular oxygen-containing gas into melted petro...  
JPS5695322A
Compounds having the general formula: I where A is a C1-C4 straight or branched chain alkylene radical, B is a -SO3M, -CO2M, -PO3HM or -PO3M2 grouping, M is hydrogen, or a cation giving a water-soluble derivative, R is hydrogen, a cation...  
JPS5625194B2
Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is a metal complex synthesized from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and c...  
JPS5620901B2  
JPS569197B2
Water is removed from an alkaline solution used to extract relatively high concentrations of mercaptans from a hydrocarbon stream by stripping the alkaline solution with a hydrocarbon vapor stream. The vapor stream is then admixed with t...  
JPS562117B2  
JPS5544794B2  
JPS5541344B2
Nitrogen trichloride produced in situ from the reaction of a chlorine source and a nitrogen source in a non-aqueous fluid is adsorbed on an adsorption media and serves to oxidize, bleach or deactivate contaminants and foreign matter of t...  
JPS5532684B2  
JPS5511716B2
A catalytic composite comprising a metal chelate mercaptan oxidation catalyst and an alkanolamine hydroxide impregnated on a solid adsorptive support is disclosed.  
JPS5511718B2
A catalytic composite comprising a metal chelate mercaptan oxidation catalyst and a quaternary ammonium salt impregnated on a solid adsorptive support is disclosed. The quaternary ammonium salt is represented by the structural formula wh...  
JPS5511714B2  
JPS5511717B2
A process for treating a mercaptan-containing sour petroleum distillate is disclosed. The process comprises passing said distillate in admixture with an oxidizing agent through a fixed bed of a supported metal phthalocyanine catalyst in ...  
JPS5511715B2
An improved method of treating a sour petroleum distillate is disclosed. Morpholine is admixed with the sour distillate and the distillate thereafter contacted with a metal phthalocyanine catalyst in the presence of an oxidizing agent at...  
JPS558116B2
An improved process for sweetening of sour hydrocarbons in a fixed bed treating process wherein the hydrocarbons, containing mercaptans, contact a phthalocyanine catalyst on charcoal in the presence of a basic medium and oxygen. The impr...  
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...  
JPS5439402B1  
JPS5437602B2  
JPS5426244B2
An improved process for sweetening of sour hydrocarbons in a fixed bed treating process wherein the hydrocarbons containing mercaptans contact a phthalocyanine catalyst on charcoal in the presence of a basic medium and oxygen. The improv...  
JPS5416403A
REMOVAL OF NON-PARAFFINIC HYDROCARBONS FROM PARAFFINIC HYDROCARBONS Non-paraffinic hydrocarbons, such as aromatic hydrocarbons, in a stream of paraffinic hydrocarbons are removed by contacting the paraffinic hydrocarbon stream with an ox...  
JPS5348205B2  
JPS5342324B2  
JPS5337081B2
A method for the removal of sulfur and nitrogen components from petroleum oils is disclosed. The unwanted sulfur and nitrogen is oxidized to the extent that the resultant compounds exhibit preferential solubility characteristics in some ...  
JPS5320279B2
1442229 ZrCl 4 /HfCl 4 UGINE ACIERS 14 Nov 1974 [14 Nov 1973] 49283/74 Heading C1A Zirconium and hafnium tetrachlorides are separated in a continuous process that involves selective absorption by a molten solvent which circulates in coun...  
JPS5329306A  
JPS5242803B1  
JPS5230284B1  

Matches 501 - 550 out of 573