Patents
Sitemap › C01 - Inorganic chemistry › C01C - Ammonia; Cyanogen; Compounds thereof › C01C 1 - Ammonia; Compounds thereof
Patents for C01C 1 - Ammonia; Compounds thereof (7,027)
01/1982
01/19/1982US4311671 Catalytic reaction, multicompartment
01/12/1982CA1115929A1 Process for the recovery of ammonia and sulphur dioxide from a contaminated ammonium salt of sulphuric acid
01/05/1982US4309359 Reacting off-gas in fuel cell to generate electricity
01/05/1982US4309311 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
12/1981
12/29/1981US4308385 Urea hydrolysis, ammonia and carbon dioxide separation
12/29/1981US4308174 Spherical cerium-activated catalyst for ammonia synthesis and process for its manufacture
12/29/1981US4308049 Process for the absorption of ammonia in acid solutions or slurries
12/23/1981EP0042041A2 Process for washing H2S out of a coke-oven gas
12/23/1981EP0042028A1 Apparatus for heat exchange between recycling gas leaving an ammonia synthesis reactor and cooling water
12/22/1981CA1114632A1 Process for the manufacture of ammonium nitrate prills and granules
12/15/1981US4305918 Purge control for ammonia plant
12/15/1981US4305917 Method for preparing ammonia and hydrogen chloride from ammonium chloride
12/15/1981US4305748 Process for pelletizing or granulating ammonium sulfate
12/08/1981CA1113692A1 Cleaning method for the internal walls of a chemical reactor
11/1981
11/24/1981CA1112847A1 Apparatus and process for the synthesis of ammonia
11/24/1981CA1112843A1 Process for converting ammonium sulfite to ammonium sulfate
11/10/1981CA1112025A1 Reactor for catalyzed exothermic reactions
11/03/1981US4298589 Split axial flow converter in ammonia synthesis
11/03/1981US4298588 Multistage, energy efficient
11/03/1981US4298400 Low dextrose equivalent starch hydrolyzates
10/1981
10/20/1981US4296085 Process for the production of ammonia and the corresponding synthesis gas
10/13/1981US4294812 Recovery of ammonia from aqueous streams
10/13/1981CA1110659A1 Integrated ammonia-urea process
10/06/1981US4293532 Process for producing hydrogen chloride and ammonia
10/06/1981CA1110042A1 Ammonia manufacturing process
09/1981
09/29/1981US4292043 Process for working up effluent containing ammonium sulphate
09/22/1981US4291006 Combined process for the production of urea and ammonia
09/22/1981CA1109231A1 Method of stripping ammonia from ammoniacal solutions
09/08/1981US4288421 Absorption into solution of iron chelate and alkali sulfite
09/08/1981US4288420 From exhaust gas, catalytic reduction, decomposition of ammonium-sulfur compounds, deashing
09/01/1981US4287162 By scrubbing with a solution containing cations of amminia or alkali metals, and anions of phosphate or borate
09/01/1981CA1107936A1 Manufacture of ammonium nitrate
08/1981
08/26/1981EP0034403A1 Method of making ammonia
08/25/1981CA1107479A1 Process for synthesizing ammonia from nitrogen and hydrogen
08/18/1981US4284832 Conversion of CS (tear gas) to o-chlorostyrene and ammonium sulfate
08/04/1981CA1106405A1 Integrated ammonia-urea producing process, for the production of urea
08/04/1981CA1106348A1 Process for the regeneration of spent aqueous solutions of sodium, potassium and/or ammonium sulfides
08/04/1981CA1106184A1 Benefication method for iron which residues from electrolytic treatment of zinc
07/1981
07/21/1981US4279703 Apparatus for the distillation of weak ammonia liquor
07/21/1981CA1105369A1 Recovery of hydrogen and ammonia from purge gas
07/21/1981CA1105284A1 Ammonium nitrate containing fertilizer pellets having improved properties during storage and transportation and a process of making same
07/15/1981EP0032096A2 Process for producing ammonia and corresponding synthesis gas
07/07/1981US4277311 Apparatus for distillation
06/1981
06/30/1981CA1103900A1 Process for the catalytic oxidation of carbon monoxide
06/30/1981CA1103898A1 No translation available
06/23/1981US4275049 Reduced hexachloroiridium acid hydrogenation catalyst
06/16/1981US4273743 Combination chemical plant and Brayton-cycle power plant
06/09/1981CA1102736A1 Apparatus and process for the preparation of ammonia and heavy water
06/03/1981EP0029536A1 Process for removing and recovering ammonia from aqueous liquors
06/02/1981US4271136 Process for the production of ammonia
06/02/1981US4271041 Vapor condensation of molybdenum hexacarbonyl, carburized
06/02/1981US4271013 Method and apparatus for removing biodegradable compounds from wastewater
05/1981
05/19/1981CA1101191A1 Process for recovering magnetite and ammonium sulphate from ammonium jarosite
05/12/1981US4266957 Recovery of hydrogen and ammonia from purge gas
05/05/1981CA1100436A1 Process and apparatus for the preparation of ammonia and heavy water
05/05/1981CA1100431A1 Method and apparatus for improved distillation of ammonia from weak ammonia liquor
05/05/1981CA1100291A1 Method and apparatus for removing sulfur and nitrogen compounds from a gas mixture
05/05/1981CA1100286A1 Process for separation of nh.sub.3 and co.sub.2 from mixtures containing them
04/1981
04/29/1981EP0027508A1 Process for preparing ammonia and hydrogen chloride from ammonium chloride
04/28/1981US4264567 Method for producing a hydrogen-containing gas
04/28/1981US4264566 To reduce temperature oscillations
04/01/1981EP0026057A1 Synthesis reactor and processes
03/1981
03/25/1981EP0025642A2 Comminuted crystalline material, aqueous suspensions thereof and methods for the preparation of said comminuted material and said suspensions
03/24/1981CA1097887A1 Process for the synthesis of ammonia using a catalyst supported on graphite-containing carbon
03/17/1981US4256471 Distillation, desorption
03/10/1981US4255406 Hydrogen recovery
03/10/1981CA1097256A1 Process for the distillation of weak ammonia liquor and apparatus therefor
02/1981
02/17/1981US4251235 Multizonal cycle based on pressure differential and dilution
02/10/1981US4250160 Production of ammonium sulfate
02/10/1981US4250057 Process for producing a catalyst comprising a graphite containing carbon, a transitional metal and a modifying metal ion
02/03/1981US4248842 Removal of contaminants and recovery of by-products from hot waste gas stream
01/1981
01/27/1981CA1094532A1 Transition metal catalyst
01/27/1981CA1094500A1 Method and apparatus for distillation
01/20/1981CA1093791A1 Method of stripping chemically combined ammonia from the aqueous condensates and waste waters of low and high temperature carbonization processes
01/06/1981US4243644 Process to synthesize ammonia
12/1980
12/30/1980US4242317 Ammonia synthesis process
12/30/1980US4242305 Apparatus for controlling emissions of hydrogen sulfide from a system utilizing geothermal steam
12/23/1980US4240808 Processing aqueous effluent liquors from degasification or gasification of coal
12/16/1980US4239682 Basification, solvent extraction
12/16/1980US4239515 Gas-liquid contact reaction apparatus
12/10/1980EP0019767A2 Process for treating ammoniumbisulphate solutions that contain cyclohexanone and cyclohexanonoxime
12/09/1980US4238468 Ammonia manufacturing process
12/02/1980US4237111 Ramming, sintering magnetite
11/1980
11/26/1980EP0019326A1 Process for purifying urea-containing waste water and process for preparing melamine
11/25/1980US4235852 Process for treating an exhaust gas containing nitrogen oxides and sulfur oxides
11/25/1980US4235749 Furnishing additional alkali after catalyst manufacture
11/25/1980CA1090281A1 Process for separating acid gases and ammonia from dilute aqueous solutions thereof
11/25/1980CA1090093A1 Low energy ammonia synthesis process
11/18/1980US4234553 Process and apparatus for the preparation of ammonia and heavy water
11/18/1980CA1089665A1 Manufacturing and using nitrogen fertilizer solutions on a farm
11/18/1980CA1089629A2 Low energy ammonia synthesis process
11/11/1980CA1089249A2 Manufacturing and using nitrogen fertilizer solutions on a farm
11/11/1980CA1089248A2 Manufacturing and using nitrogen fertilizer solutions on a farm
11/11/1980CA1089190A1 Catalytic conversion of an ammonium sulphate to sulphur dioxyde and ammonia
11/04/1980US4231995 Ammonia double-alkali process for removing sulfur oxides from stack gases
11/04/1980US4231839 After-treatment processes and apparatus, especially for urea and ammonium nitrate plants
10/1980
10/29/1980EP0018307A1 Method for the preparation of molybdenum-surface-compounds and their uses
10/29/1980EP0018028A1 Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
10/28/1980US4230680 Synthesis gas, hydrogenation, catalysts
10/28/1980US4230669 Radial ammonia converter
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