Patents for C01C 3 - Cyanogen; Compounds thereof (1,688) |
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12/27/1996 | EP0749401A1 Process for preparing calcium cyanamide from urea |
12/05/1996 | DE3790210C2 Determn. of cyanide content of a sample |
11/27/1996 | CN1033378C Alkali metal cyanide granulates and process for preparation |
11/20/1996 | EP0743093A1 Highly active double metal cyanide complex catalysts |
11/20/1996 | EP0742781A1 Preparation of hydrogen cyanide |
11/20/1996 | CN1033309C Organic and inorganic sulfur removing technology at normal temperature |
08/08/1996 | WO1996023582A1 Fluidized-bed reactor and reaction process using the same |
07/02/1996 | US5531973 Production of plasma generated NOx reducing precursors from a molecular nitrogen and hydrocarbon mixture |
06/25/1996 | US5529669 Apparatus and process for the preparation of hydrogen cyanide |
06/18/1996 | US5527756 Catalyst assembly providing high surface area for nitric acid and/or HCN synthesis |
05/30/1996 | WO1996015983A1 Hydrogen cyanide gas production |
05/22/1996 | CN1122798A Process for reduction of waste material during manufacture of acrylonitrile |
03/06/1996 | EP0699627A1 Anti-caking agents for ammonium thiocyanate |
03/01/1996 | CA2157098A1 Anti-caking agents for ammonium thiocyanate |
02/14/1996 | EP0696579A1 A process for reduction of waste material during manufacture of acrylonitrile |
11/28/1995 | US5470541 Apparatus and process for the preparation of hydrogen cyanide |
11/22/1995 | CN1030307C Method for recovery of sodium sulfocyanate from waste water |
11/14/1995 | US5466857 Reducing amount of ammonia in effluent by injecting oxygen above fluidized bed |
10/10/1995 | US5457223 Process for elimination of waste material during manufacture of acrylonitrile |
09/27/1995 | EP0673675A2 Solid multi-component membranes for reactions |
09/27/1995 | CN1109023A Production of sodium ferrocyanide by AS thiamine process |
09/26/1995 | US5453109 Reacting potassium carbonate and urea to form potassium cyanate and converting with formaldehyde the ammonia into hexamethylenetetramine |
09/14/1995 | WO1995024358A1 Process for preparing calcium cyanamide from urea |
09/14/1995 | DE4408271A1 Verfahren zur Herstellung von Calciumcyanamid aus Harnstoff A process for the production of calcium cyanamide of urea |
09/14/1995 | CA2185233A1 Process for preparing calcium cyanamide from urea |
09/12/1995 | US5449808 Method for converting amides to nitriles and nitriles to amides |
08/30/1995 | CN1107464A A process for reduction of waste material during manufacture of aerylonitrile |
08/23/1995 | EP0668470A2 Methods of reducing NOx produced by burning of a fuel |
08/22/1995 | CA1336748C Reactive resins useful for precious metal recovery |
08/19/1995 | CA2142551A1 Production of plasma generated no reducing precursors from a molecular nitrogen and hydrocarbon mixture |
08/10/1995 | WO1995021126A1 Preparation of hydrogen cyanide |
08/09/1995 | CN1029467C Method for purifying sulfur-bearing sodium cyanate waste liquid |
08/08/1995 | US5439661 Process for producing hydrogen cyanide |
06/14/1995 | EP0657384A1 Process for producing hydrogen cyanide |
05/24/1995 | CN1028493C Novel solid multi-component membranes |
05/17/1995 | EP0652985A1 Wires incorporating a helical component, assemblies thereof, and use of said assemblies as catalyser and/or to recover precious metals. |
05/04/1995 | DE4336576A1 Process for preparing isocyanic acid from cyanuric acid |
04/26/1995 | EP0649343A1 Foraminous sheets for use in catalysis |
04/12/1995 | EP0647592A1 Process for the recovery of CuCN |
04/12/1995 | EP0556228B1 Surface stabilized sources of isocyanic acid |
03/28/1995 | US5401483 Catalyst assembly providing high surface area for nitric acid and/or HCN synthesis |
03/15/1995 | CN1100091A Method for ammoxidation of olefins |
03/08/1995 | EP0641771A1 Method for ammoxidation of olefins |
02/28/1995 | US5393393 Preparation of hydrogen cyanide |
02/22/1995 | CN1099025A Method for stabilization of crude acetonitrile as oxidation or ammoxidation feed |
02/15/1995 | EP0638546A1 A process for reduction of waste material during manufacture of acrylonitrile |
02/08/1995 | EP0637584A1 Method for stabilization of crude acetonitrile as oxidation or ammoxidation feed |
01/25/1995 | CN1097719A Method for purifying sodium thiocyanate water solution |
01/24/1995 | US5383940 Improved purity and handling properties |
01/24/1995 | CA2128396A1 Method for the preparation of a hardening salt in lump form |
01/03/1995 | US5378446 Corrosion preventive zinc cyanamide and method |
12/22/1994 | DE4420750A1 Process for the continuous preparation of calcium cyanamide |
11/16/1994 | CN1095044A Method for purifying waste liquid containing sodium thiocyanate by simulating moving bed |
11/01/1994 | US5360601 Process for the preparation of isocyanic acid by the decomposition of N,N-disubstituted ureas |
10/19/1994 | CN1026226C Preparation method for corprous cyanide |
10/18/1994 | US5356603 Using platinum group metals, or alloys, in sheet or guaze forms; curve to flat ratio varying |
10/11/1994 | US5354543 Reactor using an iron-free NI-CR alloy indirect heat exchanger to quench reaction gases instead of using water; efficinecy |
10/11/1994 | CA1332267C Process for producing cyanamide |
09/07/1994 | EP0613936A1 Process for reducing of sour water corrosiveness |
09/07/1994 | CN1025851C Prodn. of cyanides by making use of hydroxy propanone cyanide as raw material instead of sodium (potassium) cyanide |
09/06/1994 | US5344569 Process for recovering thiocyanate |
07/20/1994 | CN1089597A Process for the preparation of isocyanic acid by the decomposition of N,N-disubstituted ureas |
07/13/1994 | CN1089234A Alkali metal cyanide granulates and a process for their preparation |
07/07/1994 | DE4306445C1 Reducing corrosivity of acid water contg. cyanide and ammonium and sulphide ions |
06/22/1994 | CN1088182A Process for recovering thiocyanate |
06/16/1994 | DE4324740C1 Prodn of salt mixture for hardening of steel parts - by pressing together potassium cyanate, potassium carbonate and sodium carbonate. |
06/08/1994 | EP0600282A2 Alkali cyanide granules and process for the preparation thereof |
06/08/1994 | EP0600211A2 Process for the preparation of solid sodium cyanide |
06/05/1994 | CA2110660A1 Alkali metal cyanide granulates and a process for their preparation |
06/01/1994 | EP0599491A1 Process for recovering thiocyanate |
05/10/1994 | CA1329316C Process for the preparation of aqueous ammonium thiocyanate |
04/26/1994 | US5306411 Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions |
04/20/1994 | EP0592985A1 Compositions for reversibly binding oxygen |
04/14/1994 | CA2107844A1 Compositions for reversibly binding oxygen |
04/12/1994 | CA1328352C Process for the removal of mercury from precious metal-cyanide liquors |
04/06/1994 | CN1084828A Purifying process for waste liquid containing sodium rhodanate |
04/06/1994 | CN1084823A Process for recoverying sodium rhodanate from waste water |
03/15/1994 | US5294418 Process for reversibly binding oxygen |
03/01/1994 | US5290525 Demetallization, leaching and separation |
02/17/1994 | WO1994003665A1 Wires incorporating a helical component, assemblies thereof, and use of said assemblies as catalyser and/or to recover precious metals |
02/16/1994 | EP0582863A2 Process for the preparation of isocyanic acid by decomposition of N,N-disubstituted ureas |
02/14/1994 | CA2100717A1 Process for the preparation of isocyanic acid by the decomposition of n,n-disubstituted ureas |
01/12/1994 | CN1080616A Method and equipment for producing sodium cyanide using coking ammonia |
12/15/1993 | EP0471714B1 Aluminium oxide tubes and process for manufacturing them |
12/09/1993 | WO1993024229A1 Foraminous sheets for use in catalysis |
12/09/1993 | CA2137083A1 Foraminous sheets for use in catalysis |
12/07/1993 | CA1324874C Process for the preparation and the isolation of aromatic nitriles |
12/01/1993 | EP0571952A1 Reversible oxygen sorbent compositions |
11/28/1993 | CA2097521A1 Reversible oxygen sorbent compositions |
11/17/1993 | CN1022750C Production process for solid sodium cyanide |
11/16/1993 | US5262145 Catalyst for ammonia conversion to HCN |
11/02/1993 | US5258543 Vanadium, antimony catalyst |
10/05/1993 | US5250721 Method for stabilization of crude acetonitrile as oxidation or ammoxidation feed |
08/25/1993 | EP0556228A1 Surface stabilized sources of isocyanic acid. |
08/24/1993 | US5239098 Selective separation and recovery of oxygen from oxygen-containing fluid stream |
08/11/1993 | EP0555053A1 Process for preparing metal cyanide complex catalyst |
08/03/1993 | US5232891 Process for the manufacture of a gauze for a catalytic converter and a gauze for a catalytic converter manufactured according thereto |
07/07/1993 | CN1073995A Anti-moth technology for camel hair |
06/29/1993 | US5223635 Preparation of organic compounds using as a reactant an adduct of isocyanic acid and a tertiary amine or an ether |
06/09/1993 | EP0544710A1 Improvements in or relating to catalysts and getter systems |