Patents
Patents for C01B - Non-metallic elements; Compounds thereof (781)
03/1990
03/14/1990EP0357830A1 Cobalt fischer-tropsch catalysts having improved selectivity
01/1990
01/09/1990US4892720 Substituted aluminosilicate compositions and process for preparing same
09/1989
09/26/1989CA1261317A1 Percussion rock bit
09/26/1989CA1260957A1 Process for making n-monosubstituted p- phenylenediamines
09/26/1989CA1260448A1 Crystalline silicate and method of its synthesis
09/06/1989CN1035272A Method of producting active sodium carbonate
08/1989
08/29/1989US4861571 Process for preparation of synthetic mordenite molded body
08/29/1989US4861570 Novel silicate
08/01/1989US4853202 Large-pored crystalline titanium molecular sieve zeolites
05/1989
05/02/1989US4827078 Process for extracting paraffins from their mixtures with alkanesulfonic acids
04/1989
04/11/1989US4820341 Process for producing silicon or ferrosilicon in a low-shaft electric furnace
04/11/1989CA1252278A1 Process for the production of silicon or ferrosilicon in an electric low shaft furnace, and rawmaterial mouldings suitable for the process
03/1989
03/08/1989EP0305607A1 Process for preparing mordenite
03/01/1989CN1003444B Catalytic process for producing alcohols with co.h2 and olefins as raw material
02/1989
02/14/1989US4804525 Heating reactive mixture of boric oxide and carbon yields submicron size particles
01/1989
01/17/1989US4798915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids
12/1988
12/28/1988EP0296210A1 Method for producing ceramic powders.
12/13/1988CA1246526A1 Method for the neutralization of a-zeolite obtained in synthesis plants
12/06/1988CA1246096A1 Process for preparation of cyanohydrins
10/1988
10/18/1988US4778945 Process for removing paraffins from their mixtures with paraffinsulphonic acids
09/1988
09/07/1988EP0169842B1 Method for the preparation of phosphoric acid and calcium sulphate
07/1988
07/27/1988EP0275263A1 Process for preparing methyl isocyanate
07/20/1988EP0274876A1 Process for preparing bis(ethoxythiocarbonyl)sulfide
07/14/1988WO1988005027A1 Method for producing ceramic powders
06/1988
06/28/1988US4753787 Method and structure for forming a reaction product
06/08/1988EP0269769A1 Filtration with biogenetic silica
06/08/1988CN86108740A Process for prepn. of herbicidal sulfonamides
05/1988
05/11/1988CN87105310A Process for extracting paraffins from their mixtures with alkanesulphonic acids
04/1988
04/26/1988US4740288 Electric signal indicating oxygen content; exhaust gases from automobiles
04/05/1988CA1234680A1 Method of making a densified silicon nitride/oxynitride composite
03/1988
03/30/1988EP0261701A1 Process for removing paraffins from their mixtures with paraffinsulphonic acids
03/23/1988CN87105306A Process for removing paraffins from their mixtures with paraffinsulphonic acids
03/22/1988US4732880 Surfactants followed by strong acid
01/1988
01/27/1988EP0254368A1 Process for extracting paraffins from their mixtures with alkanesulphonic acids
01/20/1988EP0253570A2 Method and structure for forming a reaction product
01/19/1988CA1231514A1 Method of making yttrium silicon oxynitrides
01/12/1988CA1231336A1 Herbicidal sulfonamides
11/1987
11/24/1987CA1229454A1 Aqueous solution containing sulphur dioxide and sodium in high percentages, its manufacture and use
11/11/1987EP0244921A2 Method for recovering platinum in a nitric acid plant
11/04/1987CN87103209A Process for extraction of paraffin from mixtures thereof with alkane-sulphonic acids
10/1987
10/06/1987CA1227623A1 Method of making high strength hot pressed si.sub.3n.sub.4
09/1987
09/30/1987EP0239177A1 Process for the extraction of paraffins from mixtures thereof with alkane-sulphonic acids
09/30/1987CN87102215A Process for preparing methyl isocyanate
09/24/1987WO1987005600A1 Process for preparing methyl isocyanate
09/22/1987US4694918 Rock bit with diamond tip inserts
09/09/1987EP0235455A2 Percussion rock bit
08/1987
08/18/1987US4687654 Process for preparing ZSM-5, large pore mordenite and ZSM-35
07/1987
07/21/1987CA1224477A1 Process for preparing dialkyl propanediimidate dihydrohalides
06/1987
06/23/1987CA1223126A1 Process for recovering zinc from ferrites
05/1987
05/12/1987US4664898 Process for preparation of mordenite type zeolite
05/12/1987CA1221526A1 Method of making reaction bonded/hot pressed si.sub.3n.sub.4 for use as a cutting tool
04/1987
04/01/1987EP0216312A1 Process for preparation of synthetic mordenite molded body
03/1987
03/25/1987CN85101826A Phosphating composition and processes
03/11/1987CN85106795A Process for preparing ammonia
03/10/1987CA1218813A1 Process for limitation of a sulphur dusts emission from sulphur prilling towers by thermic method
03/03/1987CA1218670A1 Process for the production of dihydrocarbyl carbonates, their use as fuels additives and fuel compositions containing them
02/1987
02/24/1987US4645605 Filtration with biogenetic silica
02/04/1987CN86103664A Improved composite polycrystalline diamond compact
01/1987
01/27/1987CA1217031A1 Method and an apparatus for reducing the risk of ignition and fire in the preparation of hydrogen peroxide according to the anthraquinone process
01/14/1987EP0208456A2 Process for making n-monosubstituted p-phenylenediamines
01/14/1987CN85105931A Treatment of zircon
12/1986
12/16/1986US4629806 Vapor state formation of diesters of oxalic acid
12/10/1986EP0204513A2 Herbicidal sulfonamides
11/1986
11/26/1986CN85104184A Catalytic process for producing alcohols with co, h2 and olefins as raw materials
11/25/1986CA1214309A1 Process for preparing metal carbides and precursors thereof
09/1986
09/30/1986CA1211919A1 Method for preparing phosphoric acid and calcium sulfate
09/16/1986CA1211394A1 Mutant microorganism and its use in removing organic sulfur compounds
08/1986
08/21/1986EP0176558A4 Disinfection method and composition therefor.
07/1986
07/29/1986CA1208619A1 Process in the separation of catalyst particles suspended in liquid
07/29/1986CA1208618A1 Process and apparatus in the separation of catalyst particles suspended in liquid
07/22/1986CA1207979A1 Process for the production of sulfuric acid
05/1986
05/13/1986US4588570 Method for the preparation of phosphoric acid and calcium sulphate
04/1986
04/09/1986EP0176558A1 Disinfection method and composition therefor.
03/1986
03/26/1986EP0175090A1 Method for the neutralization of an A-zeolite filter cake
03/12/1986EP0174121A2 A zeolite, a method of its synthesis, and organic conversion therewith
03/11/1986CA1201703A1 Hydrothermal zeolite activation
02/1986
02/18/1986CA1200676A1 Process for catalytic desulfurization of an acid gas containing h.sub.2s
02/05/1986EP0169842A1 Method for the preparation of phosphoric acid and calcium sulphate.
12/1985
12/31/1985US4562055 Crystallizing an amorphous aluminum silicate
11/1985
11/07/1985WO1985004854A1 Substituted aluminosilicate compositions and process for preparing same
10/1985
10/01/1985US4544534 Catalytic desulfurization process of an acid gas containing H2 S
09/1985
09/26/1985WO1985004107A1 Disinfection method and composition therefor
07/1985
07/09/1985CA1190126A1 High mobility amorphous silicon displaying non- dispersive transport properties
05/1985
05/14/1985US4517132 From metal cyanide and hydrochloric acid
03/1985
03/20/1985EP0134327A1 Treatment of zeolites
01/1985
01/30/1985EP0132320A1 Method of preparing cyanohydrins
01/22/1985US4495108 Process for preparing dialkyl propanediimidate dihydrohalides
01/17/1985WO1985000166A1 Process for preparation of cyanohydrins
10/1984
10/23/1984US4479002 Chemical intermediates for insecticides, pesticides
09/1984
09/27/1984WO1984003690A1 Method for the preparation of phosphoric acid and calcium sulphate
09/26/1984EP0119799A1 Process for preparing dialkyl propanediimidate dihydrohalides
07/1984
07/17/1984CA1170816A1 Production of mixed acid feed for chlorine dioxide generation
06/1984
06/27/1984EP0112172A1 Process for the production of dihydrocarbyl carbonates, their use as fuels additives
06/21/1984WO1984002339A1 Process for the production of dihydrocarbyl carbonates, their use as fuels additives and fuel compositions containing them
06/19/1984CA1169435A1 Vapor state formation of diesters of oxalic acid
05/1984
05/30/1984EP0109729A1 Process for preparation of mordenite type zeolite
04/1984
04/25/1984EP0106552A1 Process for preparation of zeolites
03/1984
03/28/1984EP0103990A1 Process for making diarylamines
02/1984
02/14/1984US4431841 Reacting primary aromatic amines and alicyclic ketones using an acid promoter and a platinum catalyst
01/1984
01/31/1984CA1161418A1 Crystalline aluminosilicate zeolite catalyst and the method for manufacturing thereof
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