Patents
Patents for C01C 1 - Ammonia; Compounds thereof (7,027)
11/1983
11/16/1983EP0094138A1 Process for preparing pure silicon dioxide having high mechanical strength, as well as silicon dioxide obtained by applying this process
11/09/1983EP0093638A1 Method for fractional distillation and applications to the production of mechanical or thermal energy from two low level heat sources
11/09/1983EP0093502A1 Ammonia production process
11/08/1983US4414191 Process for the production of ammonia
10/1983
10/25/1983US4411877 Synthesis processes
10/18/1983US4410503 Process for the removal of urea, ammonia, and carbon dioxide from dilute aqueous solutions
10/11/1983CA1154934A1 Separation of ammonia from ammonia containing gases
10/04/1983US4407737 Milling to powders of specified granulometry
09/1983
09/20/1983US4405562 Heat exchangers, quenching, catalyst
09/14/1983EP0088478A1 Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
08/1983
08/30/1983US4401565 Second tank produces gas such as methane or carbon dioxide
08/30/1983US4401153 Heat exchanger incorporating nitriding-resistant material
08/30/1983CA1152727A1 Process for the production of ammonia and the corresponding synthesis gas
08/09/1983CA1151399A1 Method of washing h.sub.2s out of coke-oven gas
08/02/1983CA1151149A1 Heat exchanger for amonia converter effluent recycle gas
07/1983
07/20/1983EP0083831A1 Process for producing sulfuric acid and ammonia
07/19/1983US4394363 Reacted with alkaline earth compounds with out sludge formation
06/1983
06/15/1983EP0081213A1 Process for the depollution of effluents from ammonium nitrate production and recuperation of the elements in these effluents
06/15/1983EP0081063A1 Method for producing sodium persulfate
06/07/1983US4387005 Process and apparatus for carrying out the first stage of separation of constituents of a reaction mixture obtained during synthesis of asymmetric dimethylhydrazine by the Raschig method
06/01/1983EP0080270A2 Synthesis process and reactor
05/1983
05/17/1983US4383982 Catalytic aeforming of hydrocarbons, multistage, gas flow control, adiabatic, endothermic
05/11/1983EP0078412A2 Method and apparatus for regenerating physically acting organic washing liquors
05/03/1983CA1145531A1 Split axial flow converter in ammonia synthesis
04/1983
04/12/1983CA1144512A1 After-treatment processes and apparatus especially for urea and ammonium nitrate plants
04/12/1983CA1144340A1 Process for the recuperation of sulfuric acid
04/05/1983US4379078 Process for producing granulated catalyst for the synthesis of ammonia
03/1983
03/30/1983EP0075354A1 Process for the preparation of magnesium nitrate hexahydrate
03/30/1983EP0075056A1 Synthesis system and process for the production of ammonia
03/22/1983CA1143136A1 Process for producing methanol and ammonia
03/22/1983CA1143133A1 Process for producing hydrogen cyanide
03/15/1983US4376758 Process for synthesizing ammonia from hydrocarbons
03/01/1983US4375412 Methods for the treatment of organic material and particularly sewage sludge
02/1983
02/22/1983CA1141872A1 Process for purifying urea-containing waste water and process for preparing melamine
02/08/1983US4372920 Axial-radial reactor for heterogeneous synthesis
01/1983
01/25/1983CA1139920A1 Process for preparing stabilized, ammonium nitrate containing granules
01/12/1983EP0069454A1 Method and apparatus for compressing gas
01/04/1983US4367206 Method for producing methanol and ammonia
01/04/1983US4367104 Finely comminuted water-soluble materials and aqueous suspensions thereof
12/1982
12/28/1982CA1138406A1 Ammonia synthesis catalysts and process of making and using them
12/14/1982CA1137280A1 Nox disposal and heat recovery in single self-contained structure
11/1982
11/16/1982CA1135653A1 Apparatus for treatment of ammoniacal waste liquid
11/16/1982CA1135482A1 Process for the granulation of precipitation products formed from ammonium compounds by substitution with alkaline-earth compounds
11/16/1982CA1135478A1 Method of producing ammonia by catalyzed reaction between hydrogen and nitrogen
10/1982
10/19/1982CA1133680A1 Catalytic process for synthesis of ammonia
10/19/1982CA1133679A1 Integrated process for the production of methanol and ammonia
10/12/1982CA1133230A1 Low energy process for synthesis of ammonia
09/1982
09/29/1982EP0061193A1 Process for the recovery of sulfuric acid
09/22/1982EP0060622A1 Catalyst
09/21/1982CA1131885A1 Process for teh separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
09/08/1982EP0059516A1 Process for the removal of urea, ammonia and carbon dioxide from dilute aqueous solutions
09/07/1982US4348370 Ammonia synthesis with catalyst derived by heating on a support a salt selected from alkali metal, alkaline earth metal, iron and cobalt hexacyanocobaltates and hexacyanoruthenates
09/07/1982CA1131157A1 Method for removal of ammonia and ammonium salts from industrial waste water
08/1982
08/25/1982EP0058531A1 Process for the production of ammonia
08/24/1982US4346060 Radial ammonia converters
08/24/1982US4345975 Process for preventing blockage in distillation column of treatment apparatus for ammoniacal waste liquid
08/17/1982US4345038 CO Hydrogenation process using steam and molybdenum oxycarbonitride catalyst
08/17/1982CA1129626A1 Processes for separating at least one gas from a gaseous feed mixture by using at least two permeator stages in series
08/03/1982US4342735 Stripping of aqueous ammonium carbonate solution
08/03/1982US4342731 Method for removing hydrogen sulfide from coke oven gas
07/1982
07/27/1982US4341737 Apparatus for carrying out catalytic exothermic and endothermic high-pressure gas reactions
07/27/1982US4341535 Ammonium sulfate recovery process
07/27/1982CA1128289A1 Method of hydrolyzing urea contained in waste water streams
07/21/1982EP0056246A1 Process for selectively separating and producing ammonia from gas mixtures containing ammonia and hydrogen sulfide
07/14/1982EP0055921A2 Ammonium sulfate recovery process
07/08/1982WO1982002141A2 Ammonia production capacitor
06/1982
06/29/1982US4337232 Ammonia synthesis process using molybdenum oxycarbonitride catalyst
06/29/1982CA1126487A1 Apparatus for eliminating ammonia fumes emanating from diazo copiers
06/22/1982CA1125992A1 Steam system
06/15/1982US4335088 Process for producing ammonium carbonate
06/09/1982EP0053410A1 Process for the removal of urea, ammonia and carbon dioxide from dilute aqueous solutions
06/08/1982CA1125139A1 Finely comminuted water-soluble materials and aqueous suspensions thereof
06/02/1982EP0053018A1 Novel molybdenum oxycarbonitride compositions
05/1982
05/25/1982CA1124042A1 Radial ammonia converter
05/25/1982CA1124032A1 Ammonia production process and plant
05/18/1982CA1123935A1 Process control method and apparatus
05/11/1982US4329320 Ammonium carbonate
05/11/1982CA1123176A1 Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
05/04/1982US4328189 Apparatus for the granulation of precipitation products formed from ammonium compounds
04/1982
04/27/1982US4327068 Method and the reuse of sewage waters of the combined urea-ammonia installations
04/21/1982EP0049967A1 Ammonia production process
04/20/1982US4325931 Method of producing ammonia
04/20/1982CA1121987A1 Apparatus for carrying out catalytic exothermic and endothermic high-pressure gas reactions and processes for effecting same
04/06/1982US4323430 Process for separating ammonia and acid gases from streams containing fixed ammonia salts
03/1982
03/30/1982CA1120697A1 Air injector nozzle for secondary reformer
03/30/1982CA1120693A1 Flexible integrated method for the production of ammonia and urea
03/23/1982US4321234 Chemical process and apparatus therefor
03/16/1982US4320103 Flexible integrated method for the production of ammonia and urea
03/16/1982CA1119780A1 Method for removing nitrogen oxides from a gas stream
03/09/1982US4318782 Process for distilling ammoniacal solutions
03/09/1982CA1119388A1 Removal of contaminants and recovery of by-products from hot waste gas stream
03/02/1982US4317808 Process for the production of hydrogen cyanide
02/1982
02/23/1982US4316736 Magnesium nitrate, spraying
02/16/1982US4315900 Catalytic reforming using steam, subjecting synthesis gas product to high temperature shift conversion
02/16/1982CA1118185A1 Combined process for the production of urea and ammonia
02/09/1982CA1117737A1 Ammonia synthesis process
02/09/1982CA1117736A1 Purge control for ammonia plant
02/09/1982CA1117735A1 Hydrogen
01/1982
01/26/1982US4312851 Expansion and compression using work generated in expansion
01/26/1982CA1116856A1 Apparatus for mixing reacting gases in oxygen reforming reactors
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