Patents
Patents for C01C 1 - Ammonia; Compounds thereof (7,027)
10/2001
10/17/2001CN1318034A Method for distilling ammonia
10/17/2001CN1317447A Process for preparing high-quality low-salt low-potassium heavy sodium carbonate and ammonium chloride by direct calcine of vapor, washing and hydration
10/09/2001US6299849 Providing catalytic beds, feeding gaseous reagents to synthesis reactor comprising a shell; reacting gaseous reagents incatalytic beds; withdrawing from synthesis reactor reaction products
10/04/2001EP1138630A2 Seal for use in reforming apparatus
10/04/2001EP0914294B1 Oxygen and nitrogen injection for increasing ammonia production
09/2001
09/26/2001EP1135331A1 Method for obtaining ammonia from waste water containing nh 3? and acid gases
09/26/2001CN1314306A Catalyst for producing ammonia and dimethyl amine by decomposing unsym-dimethyl hydrazine
09/26/2001CN1314305A Catalytic hydrogenolysis of unsym-dimethyl hydrazine
09/25/2001US6294066 Apparatus and process for electrodialysis of salts
09/13/2001WO2001066465A1 Ammonia synthesis process and apparatus for use therein
09/13/2001US20010021359 Reactor zones separated by heat exchangers; printed circuits
09/13/2001US20010020444 Chemical reactor
09/12/2001EP1019321A4 Methods for the production of ammonia from urea and uses thereof
09/07/2001WO2001064054A1 Method for hardening granular inorganic salt compounds
09/05/2001EP1129053A1 Process for producing phase-stabilized ammonium nitrate
09/05/2001EP1129030A1 Process and converter for the preparation of ammonia
09/04/2001US6282880 Separating a purge gas stream from ammonia synthesis product gas into hydrogen-rich and hydrogen-depleted gas via permeable membrane
09/04/2001CA2067643C Ammonium nitrate density modification
08/2001
08/30/2001US20010018039 Synthesis gad flow through iron catalyst beds; intermediate cooling by heat exchanging; ammoniation; hydrogenation
08/30/2001US20010018034 High in efficiency of heat transfer and compact, the ammonia generating device includes a urea water introducing part, a flow passage for urea water and heater, wherein flow passage is connected to urea water intake part
08/29/2001CN1310131A Preparation of barium nitrate
08/28/2001CA2335273A1 Ammonia generating apparatus
08/23/2001US20010016183 Process for converting urea into ammonia
08/22/2001EP1124756A1 Method of ammonium sulfate purification
08/22/2001CN1309083A Method and reactor for preparing ammonia
08/21/2001US6277343 Relates to gas-liquid contactors used in the removal of acidic gases, such as from utility and industrial flue gases.
08/21/2001CA2011886C Process and reactor for exothermic heterogeneous synthesis with several catalytic beds and heat exchange
08/16/2001WO2001009038A3 Natural gas conversion to hydrocarbons and ammonia
08/16/2001EP1123900A1 Process and apparatus for purifying an aqueous solution which contains ammonium sulfate, ammonium nitrate and organic compounds
08/16/2001EP1123899A1 Process and reactor for the preparation of ammonia
08/16/2001EP1123257A1 Method of preparation of ammonium nitrate products having improved thermal stability and products thereof
08/08/2001EP1122213A1 Distillative purification of ammonia
08/08/2001CN1307540A Process for preparation of ammonia
08/07/2001US6271188 Semiconductor cleaning solution
08/02/2001WO2001054806A1 Chemical reactor with heat exchanger
08/02/2001WO2001054805A1 Compact reactor with heat exchanger
08/02/2001WO2001054804A1 Chemical reactor with heat exchanger
08/02/2001US20010010286 Purification of ammonia by distillation
08/02/2001DE10004311A1 Destillative Reinigung von Ammoniak Purification by distillation of ammonia
08/01/2001EP1119519A1 Improved regeneration method for process which removes hydrogen sulfide from gas streams
08/01/2001CN1305955A Process for increasing concentration of solid-phase potassium nitrate and quality of resultant potassium nitrate
07/2001
07/31/2001US6267864 Field assisted transformation of chemical and material compositions
07/25/2001CN1304878A Process for preparing potassium nitrate by metathesis method
07/18/2001EP0853608B1 Process for the ammonia and methanol co-production
07/18/2001CN1304391A Ammonium nitrate bodies and process for their production
07/12/2001WO2001049608A1 Process for stabilizing ammonium nitrate
07/11/2001EP1114012A1 Field assisted transformation of chemical and material compositions
07/11/2001CN1303315A Process for treating flue gas
07/05/2001WO2001047811A2 Phase stabilized ammonium nitrate and method of making the same
07/05/2001US20010006614 Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system
07/04/2001CN1301667A Preparing potassium nitrate by metathesis and crystilization
06/2001
06/27/2001CN1300714A Process for preparing manganese compound from fume and its afterheat
06/27/2001CN1067656C Anti-corrosive method and apparatus by heat exchange of saturated gas with changing gas
06/19/2001US6248794 Integrated process for converting hydrocarbon gas to liquids
06/19/2001US6247333 Process for supplying impure oxygen to a synthesis-gas production unit
06/13/2001CN1299337A Method of producing potassium sulfate
06/12/2001US6244056 Controlled production of ammonia and other gases
06/05/2001US6241955 Method and apparatus for purification of hydride gas streams
05/2001
05/31/2001US20010002245 Includes subjecting part of the flow comprising carbamate in aqueous solution coming from urea recovery section to partial decomposition treatment, to obtain a flow of ammonia and carbon dioxide in vapor phase, and diluted carbamate solution
05/30/2001EP1102720A1 Method for distilling ammonia
05/30/2001EP1102619A2 Method for converting urea into ammonia
05/29/2001US6238634 Process for the nondestructive heating and supply of hot ammonia or hot ammonia containing feed gas
05/25/2001WO2001036330A1 Method of reducing density by means of gas-generating agent
05/25/2001CA2388810A1 Method of reducing density by means of gas-generating agent
05/23/2001CN1295974A Ammonium nitrate crystal pelletizing process and equipment
05/22/2001US6235676 Process for the preparation of ammonia and ammonia synthesis catalyst
05/16/2001EP1098847A1 Process for the preparation of ammonia
05/16/2001CN1065781C Method to carry out heterogeneous synthesis in converters with walls protected against high temperature and converters obtained in this manner
05/15/2001US6232352 Diverting synthesis gas (hydrogen, carbon monoxide, and carbon dioxide) from methanol synthesis loop to a carbon monoxide separator and reacting methanol with the carbon monoxide to make acetic acid
05/15/2001US6231827 Process for combined production of ammonia and urea
05/15/2001US6231822 Recovering chloride and sulfate compounds from spent potliner
05/10/2001WO2001032594A1 Methanol plant retrofit for manufacture of acetic acid
05/10/2001US20010000889 Processes for electrically activated transformation of chemical and material compositions
05/10/2001DE19951976A1 Verfahren zur plasmakatalytischen Erzeugung von Ammoniak A process for the plasma catalytic production of ammonia
05/09/2001CN1294089A Method for preparing ammonia and ammonia synthetic gas
05/08/2001US6228341 Process using plate arrangement for exothermic reactions
05/02/2001EP1095907A2 Process for the plasma-catalytic preparation of ammonia
05/02/2001EP1095906A2 Process for the preparation of ammonia
05/02/2001EP1094985A1 Method of procucing potassium sulfate
05/02/2001CN1293593A Catalyst for synthesis of ammonia from hydrofen and nitrofen
05/01/2001US6224731 Apparatus and process for electrodialysis of salts
04/2001
04/25/2001EP1093449A1 Ammonium nitrate bodies and a process for their production
04/24/2001US6221320 Device and method for holding catalyst in a radial flow reactor
04/24/2001US6221225 Apparatus and process for electrodialysis of salts
04/19/2001WO2001027030A1 Method for neutralising a waste acid and concomitant recovery of salt crystals
04/19/2001DE19949534A1 Ammonia recuperation plant comprises absorption columns, preparation columns and concentration columns
04/18/2001EP1092681A1 Process for the neutralization of waste acids under simultaneous recovery of salt crystals
04/17/2001US6217840 Production of fumed silica
04/17/2001US6217836 Recovering carbon, silica and alumina from spent potliner
04/17/2001US6216464 Process and unit for the combined production of ammonia synthesis gas and power
04/11/2001EP1089804A1 Process for treating flue gas
04/11/2001CN1290655A Gravity separation method for producing potassium sulfate
04/10/2001US6214296 Method of catalytic reaction carried out near the optimal temperature and an apparatus for the method
04/10/2001US6214195 Using catalyst; exposure to electromagnetic waves
03/2001
03/29/2001WO2001021287A1 Flue gas scrubbing method and gas-liquid contractor therefor
03/14/2001EP1083150A1 Process and apparatus for producing ammonia in a recycle circuit using ceramic membranes
03/10/2001CA2318649A1 Process and apparatus for producing ammonia in a recycle circuit stream using ceramic membranes
03/08/2001WO2001016025A1 Controlled production of ammonia and other gases
03/07/2001EP1080767A2 Method of processing an acid solution comprising salt and installation for carrying out the method
03/06/2001US6197271 Catalytic reactor and process for exothermic gas phase reactions
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