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Patent Searching and Data


Matches 651 - 700 out of 731

Document Document Title
JPS55102685A  
JPS5511716B2  
JPS5511718B2  
JPS5511714B2  
JPS5511717B2  
JPS5511715B2  
JPS5534214A
PURPOSE: A redox reagent useful for the wet desulfurization process, having improved solubility in water and a conc. aqueous inorganic salt, comprising an anthraquinone-polysulfonate as an active constituent. CONSTITUTION: A reagent comp...  
JPS558116B2  
JPS5519277A  
JPS5518296A  
JPS5518493A  
JPS54157104A  
JPS54151957A
NEW MATERIAL:Compounds of formula I (M is H, Na, K, ammonium group). USE: Oxidation reduction reagents for wet desulfurization process, intermediates for dyes and medicines; they have relatively high solubility in high-concentration inor...  
JPS5439402B1  
JPS5437602B2  
JPS54126204A  
JPS5426244B2  
JPS54101805A  
JPS54101806A  
JPS5460302A
PURPOSE: To prevent a noble metal catalyst from lowering its catalytic activity even in a process wherein an arsenic-containing petroleum cut is treated without removal of arsenic, by oxidizing arsenic in the petrolenm cut. CONSTITUTION:...  
JPS5455559A
NEW MATERIAL:Compounds of formula I (M is H, Na K or ammonium group) USE: Oxidation-reaction reagent for wet type desulfurization process (especially for Stredford process). They are used as various kinds of intermediates. PREPARATION: T...  
JPS5455006A
PURPOSE: To remove arsenic contained in petroleum cuts without requiring expensive equipment and oxidizing agents, by removing the exidation product of arsenic in the petroleum cuts. CONSTITUTION: Petroleum cuts, e.g. crude oil, straight...  
JPS5426806A  
JPS5424863A
PURPOSE: 2 Phenylanthraquinonedisulfonic acid and its salts expressed by formula I: (M is H, Na, K, or NH4).  
JPS5416403A  
JPS5348205B2  
JPS53147702A  
JPS53143607A
PURPOSE: To remove arsenic harmful as catalyst poison efficiently and economically by oxidizing arsenic contained in petroleum fractions with an oxygen-containing gas an organic peroxide, and inorganic oxide, etc., and by removing the ar...  
JPS5342324B2  
JPS53140737U  
JPS53125288A  
JPS5337081B2  
JPS5379787A  
JPS5320279B2  
JPS5329306A  
JPS5242803B1  
JPS52123404A  
JPS52121608A  
JPS52119491A  
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...  
JPS52101206A  
JPS52101684A  
JPS5230284B1  
JPS5229321B2  
JPS5225401B2  
JPS5268436U  
JPS5250973A  
JPS5238490A  
JPS5212203A
PURPOSE: A method for the decolorization of waste lubricating oil by adding urea or metallic aluminium to the waste oil, heating the mixture, separating scum, and contacting the treated oil with hydrogen peroxide or oxygen.  
JPS527901A  

Matches 651 - 700 out of 731