Patents
Sitemap › C01 - Inorganic chemistry › C01C - Ammonia; Cyanogen; Compounds thereof › C01C 1 - Ammonia; Compounds thereof
Patents for C01C 1 - Ammonia; Compounds thereof (7,027)
08/1990
08/04/1990CA2045674A1 Method for removal of ammonia from a gas mixture
07/1990
07/25/1990EP0379307A2 Process for removing SOx from a gaseous mixture
07/13/1990CA2007255A1 Process for removing sox from a gaseous mixture
07/11/1990EP0377476A1 Method of purifying air containing ammonia and device to be used thereby
07/11/1990CN1043682A Fixation of nitrogen by discharge after heating air and water
07/11/1990CN1043638A Improvements to reactors for heterogeneous synthesis
07/04/1990EP0376550A2 Stabilized solid thiocarbonate compositions and methods for making same
07/04/1990EP0376000A1 Reactor for exothermic heterogeneous catalytic synthesis
07/04/1990CN1043447A Reactor for exothermic heterogeneous catalytic synthesis
07/03/1990US4938855 Photopromoted catalytic method for making ammonia from molecular nitrogen using molecular hydrogen as a reducing agent
07/03/1990CA1271019A1 Converter for heterogeneous synthesis more particularly for ammonia, methanol and higher alcohols
06/1990
06/28/1990CA2005873A1 Stabilized solid thiocarbonate compositions and methods for making same
06/27/1990EP0374564A1 Improvements to reactors for heterogeneous synthesis
06/27/1990CN1043291A Production of ammonia from hydrocarbonaceous feedstock
06/19/1990US4935219 Process for obtaining ferric oxide and ammonium salts
06/19/1990US4935210 Catalytic bed consists of first solid upper cylindrical area, second annular area and third tapering area
06/14/1990WO1990006281A1 Production of ammonia from hydrocarbonaceous feedstock
06/13/1990CN1008350B Autothermal production of synthesis gas
06/09/1990CA2005078A1 Reactor for exothermic heterogeneous catalytic synthesis
06/06/1990EP0371271A1 Preparation of alkanesulfonamides
05/1990
05/31/1990CA2004216A1 Production of ammonia from hydrocarbonaceous feedstock
05/31/1990CA2001876A1 Preparation of alkanesulfonamides
05/30/1990CN1042480A Inner unit of direct heat-exchange synthetic tower
05/22/1990US4927617 Process of producing concentrated solutions of ammonium nitrate
05/02/1990CN1041710A Catalyst for experiment of ammonia oxidation
05/02/1990CN1007809B Method of recovering solid ammonium sulfate from dilute ammonium sulfate solution
05/02/1990CN1007808B Ammonia synthesis tower
05/01/1990US4921684 Ammonia conversion process
04/1990
04/24/1990US4919909 Reactor for catalytic synthesis and process for using the reactor
04/18/1990CN1007620B Reclaiming argon from hydrogen depletion blowing of sythesis ammonia device using separation process of hypothermia and non hypothermia
04/18/1990CN1007619B Recovering argon from blowing air of ammonia converter by separating method of combining low temp. with non low temp.
04/17/1990US4917919 Process for preventing caking of ammonium bifluoride and/or fluoride particles
04/11/1990EP0363185A1 Catalysts
04/10/1990US4915705 Hydrolysis with aqueous ammonia
03/1990
03/28/1990CN2055241U Fixing device for water cooled pipe array
03/22/1990WO1990002600A1 Process and installation for recovering ammonia from flue gases
03/21/1990EP0359149A1 Membrane unit turn-down control system
03/14/1990CN1007128B System and device to make catalytic basket walls for heterogeneous synthesis reactors
03/13/1990US4908114 Mobile atom insertion reaction, mobile atom transmissive membrane for carrying out the reaction, and reactor incorporating the mobile atom transmissive membrane
03/13/1990US4907643 Combined heat exchanger system such as for ammonia synthesis reactor effluent
03/07/1990EP0357488A1 Process for the linked production of olefines and ammonia from natural gas, and use of this process in the production of urea
03/06/1990US4906447 Synthetic ammonia process
02/1990
02/28/1990EP0355303A1 Reactor for exothermic heterogeneous synthesis with several catalytic beds and with the external recovery of reaction heat
02/28/1990EP0355259A1 Ammonia synthesis process
02/27/1990US4904453 System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors
02/22/1990DE3922723A1 Krypton and xenon sepn. - for methane based mixt. obtd. from ammonia synthesis residual gas using multi-stage rectification
02/22/1990DE3922594A1 Krypton and xenon recovery from synthesis of residual gases - by catalytic hydrogenation of higher boiling hydrocarbon(s) to methane
02/14/1990CN1039571A Technology for making products from waste liquor of iron and steel rust-removing
02/14/1990CN1039539A Process and reactor for exothermic heterogeneous synthesis with several catalytic beds and with exthernal recovery of reaction heat
02/14/1990CN1006767B Preparation of a new catalyst containing rare earth element for synthesis of ammonia
01/1990
01/24/1990CN1039002A Method of preparing ammonia
01/23/1990US4895711 Nitrogen monoxide, hydrogen, mineral acid, platinum catalyst, supports, platinum salt reduction, thiourea
01/11/1990WO1990000153A1 Method of preparing ammonia
01/02/1990US4891202 Method for making ammonia by the reduction of molecular nitrogen
12/1989
12/13/1989EP0345505A2 Apparatus for carrying out exothermal, catalytical gas reactions for ammoniac or methanol synthesis
12/13/1989EP0345504A1 Apparatus for carrying out exothermic catalytic gas reactions for ammonia or methanol synthesis
12/12/1989US4886651 Process for co-production of higher alcohols, methanol and ammonia
12/12/1989CA1263809A1 Method of regulating the pressure of a gas produced in a reactor
11/1989
11/28/1989US4883646 Revamping existing reactor to improve efficiency
11/23/1989EP0342610A2 Process for co-production of higher alcohols, methanol and ammonia
11/23/1989DE3815963A1 Process and apparatus for removing ammonia from fly ash
11/22/1989CN2048064U Internal construction member of cocurrent flow gas-distributing ammonia synthetic tower
11/16/1989DE3816401A1 Process for purifying raw gas for ammonia synthesis
11/14/1989US4880603 Device for achieving a uniform distribution of the gas flowing radially through a catalyst bed
11/09/1989DE3813976A1 Process for recovering a helium-rich helium/hydrogen mixture
11/08/1989CN2047263U Three-section axial cold-excitation-indirect heat-exchange type ammonia converter
11/08/1989CN1036934A Preparation of hydroxylammonium salts
11/08/1989CN1005707B Process for removing nh3 in so2-containing gas
11/01/1989CN1005626B Process of producing concentrated solutions of ammonium nitrate
10/1989
10/18/1989EP0337712A2 Method of production of high purity silica and ammonium fluoride
10/18/1989EP0230432B1 Process for producing concentrated solutions of ammonium nitrate
10/11/1989CN1036190A System for improving efficiency of heat-releasing synthesis reactor, in particular synthesis ammonia reactor
10/11/1989CN1005407B Prodn. of bicarbonate of ammonium by method of ammonium/carbon balance
10/10/1989US4873061 Solar reactor concentrates heat for reactions with other gases; rapid cooling fixes product equilibrium
10/03/1989CA1262124A1 Catalysts
09/1989
09/27/1989EP0334121A1 Process for the preparation of hydroxy ammonium salts
09/26/1989US4869888 Ammonia production process utilizing enhanced boiling surface in refrigeration zone
09/26/1989US4869887 Integrated ammonia-urea process
09/26/1989CA1261588A1 Ammonia synthesis
09/20/1989EP0332757A2 Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure
09/19/1989US4867959 Process for synthesizing ammonia
09/19/1989EP0305512A4 Waste-gas treatment process.
09/19/1989CA1259601A1 Catalysts
09/13/1989CN1035446A Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure
09/12/1989US4865831 Recovery of zinc and ammonium chloride
08/1989
08/23/1989CN1034905A Method of production of ammonium hydrogen carbonate by utilizing ammonia water containing sulfur produced
08/23/1989CN1034904A Method of purifying the coke oven gas and getting the ammonium hydrogen carbonate as byproduct
08/22/1989US4859425 System for improve the mixing of reacted gases and quench gases in heterogeneous synthesis reactors
08/15/1989US4857082 Gas separation with semipermeable membrane
08/15/1989CA1258360A2 Manufacturing and using nitrogen fertilizer solutions on a farm
07/1989
07/25/1989US4851206 Methods and compostions involving high specific surface area carbides and nitrides
07/25/1989US4851125 Absorption and desorption through semipermeable membrane
07/25/1989CA1257764A1 Method for the preparation of a bicarbonate sorbent in flue gas desulfurization
07/18/1989US4849206 Synthesis gas
07/11/1989US4846947 Process for preparing an alkanolammonium salt or ammonium salt of surface active agents
07/04/1989CA1256672A1 Process and equipment for preparing ammonium nitrate
06/1989
06/28/1989CN1004611B Improvement of heterogeneous catalytic reactor to reduce energy consumption and correlative reactor
06/07/1989EP0319260A2 The removal of ammonium salts from an aqueous medium containing the salt
05/1989
05/31/1989CN1004346B Process for refining an ammonia synthesis gas
05/30/1989US4834959 Process for selectively removing sulfur dioxide
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