Light microporous ammonium nitrate and its preparing process
Light microporous ammonium nitrate is obtained through modification of ordinary industrial ammonium nitrate by use of compound crystalline modifier and features more micropores, great sp...
Ammonia-preparing technique from heavy oil
This invention uses gas turbine for substituting of originally adopted steam turbine and power boiler system. The original technological process is only such modified that the mode of hu...
5
93104760
Neutralizing synthesization for preparing potassium sulfate
A neutralizing synthesization process including two steps of reaction at lower temp for preparing potassium sulfate, as well as by-products of hydrochloric acid and ammonium sulfate feat...
Method for purifying sodium thiocyanate water solution
The invention relates to a purifying method for sodium thiocyanate water solution, in a resin tower or a series of resin towers (their H/D is 10-100) ion retarding resin is filled, let r...
Preparation of high-active synthetic ammonia catalyst
Selected magnetite, aluminium oxide, calcium carbonate and potassium nitrate or industrial catalyst of mixed iron oxide for synthetic ommonia are used as raw material to prepare the cata...
Method for ammoxidation of olefins
The process for ammoxidation of C3-C5 monoalkene into a,b-monounsaturated acyclic nitrile with 3-5 C atoms and HCN features that monoalkene, molecular oxygen and ammonia are led into rea...
18
93112145
Synthetic ammonia new technology
This invented method of new ammonia preparation technological process for synthetic ammonia uses waste timber to prepare inert gas, being safe and easy; adding copper into regenerator fo...
19
93117051
Decomposition for ammonium sulfate
This invention is a method of manufacturing ammonia and sulphuric acid by decomposing ammonium sulphate. It features that ammonia is released in heated reaction of iron oxide with ammoni...
20
93119252
Production of high-purity ammonium chloride
A process for preparing high-purity ammonium chloride by the replacement reaction of sodium chloride and ammonium bicarbonate comprises adding the table salt to the filtrate after dicarb...
21
93118070
Method for recovery of sodium sulfocyanate from waste water
The present invention relates to the method for extracting the inorganic salt of sodium thiocyanate. Said method utilizes the weak basic anion exchange resin through change mode, adsorpt...
22
93118047
Purifying process for waste liquid containing sodium rhodanate
This invention relates to a treating method for waste water containing sodium thiocyanate. It uses weak-basic anion-exchange resin, the SCN- ion is removed from waste water through type-...
Process for recovering thiocyanate A safe, energy-saving process for recovering (or purifying) thiocyanate from a large amount of waste liquid (or thiocyanate-containing aqueous solution) by the aid of a reverse osmosis me...
Gas-solid catalyst reactor
The present invention relates to a gas-solid catalytic reactor for synthesizing ammonia and methanol and making other gas-solid catalytic reversible reaction in chemical production. It m...
Ash ammonia scrubbing
The present invention relates to a kind of method for decreasing the ammonia content adhered to the burning ash, it consists of burning the fuel under the condition of effectively formin...
Anti-caking agent for ammonium nitrate
The anti-caking agent for ammonium nitrate used in agriculture and explosive charges preparation is made by using diffusant having anion surface activity as crystal form control, and add...
39
94110616
Producing method for potassium nitrate
The present invention uses the fertilizers of ammonium nitrate and potassium chloride as raw materials and adopts the intermediate salt method to produce potassium nitrate. Let the circu...
40
94105662
Process for preparing cationic surfactant
The process for preparing cationic surfactant includes loading lauyl alcohol and catalyst into a reactor, slowly putting epoxy chloropropane in it, mixing and heating to 70-145 deg. C, c...
Production of sodium ferrocyanide by AS thiamine process
The As thiamine process, an improvement taking aim at existing full-negative-pressure As gas purification process, for production of ferrocyanide ( sodium ferrocyanide ) includes such te...
43
94108998
Processing technique for residual ammonia water
The process for processing residual ammonia water in coking process, especially for producing ammonium sulfate with residual ammonia water includes loading ammonia water into ammonia eva...
44
95192041
Process for preparing calcium cyanamide from urea Disclosed is a process for producing calcium cyanamide by reacting urea with an oxygen-containing calcium compound in at least two steps a) in a first step the reaction components are all...
Preparation of hydrogen cyanide Hydrogen cyanide is produced by reacting ammonia and a hydrocarbon gas in the presence of a platinum-group-metal catalyst while the catalyst is heated by induction heating at a frequency ...
47
95107950
Method for eliminating NHa-N from thin ammonia water
The process for removing NH3-N from diluted ammonia water features that circulated air is contacted with pretreated diluted ammonia water in desorber for desorbing ammonia into circulate...
Method and apparatus for permeation separation of gas mixture A permeation separation method wherein a gas mixture is separated in two membrane systems (3A, 5A) of which only the first (3A) is resistant to an impurity contained in the mixture. Said ...
54
95112804
Producing method for synthetic ammonia
The invented method makes the prepared mixed gas undergo the processes of sweetening, carbon monoxide transformation and deprivation of CO2, then refining to obtain H2 and N2, making syn...
Continuous potassium sulfate producing method and equipment
The present invention features that C5-C12 alkyl-tertiary amine as association agent and potassium chloride in prepared potassium sulfate liquid containing sulfuric acid 10-12% and potas...
Technology for refining ammonia
The combined technological process consisting of washing,c rystallizing, adsorption and fine desulfurization for refining ammonia is characterized by adding concetrated ammonia liquor wa...
59
96103774
Method for production of silver potassium cyanide
A new method for production of potassium argentocyanide is to use the basic material or base-releasing materiol to neutralize silver nitrate solution, then the neutrolizes silver nitrate...
60
96102913
Method for recovering heat in production of synthesized ammoia
The present invention relates to an intelligent energy recovering and utilization system in the course of production of synthetic ammonia. Said system adopts single saturated hot-water t...
Technology for producing pure alkali and ammonium chloride
The present invention relates to a technological process for producing soda ash and ammonium chloride. Said technological process is implemented by using sodium chloride and ammonium hyd...
64
96196883
Process for ammonia and methanol co-production A process for ammonia and methanol co-production in a plant comprising a secondary reformer section, a high-temperature CO conversion section and a low-temperature CO conversion section, ...
65
96196026
Process for the ammonia and methanol co-production A process for ammonia and methanol co-production in a plant comprising a first primary reforming section (11) and a secondary reforming section (12) arranged in series, an ammonia synthes...
66
96109835
Salting out process for producing potassium sulfate
A salting-out process for preparing potassium sulfate from sulfuric acid, potassium chloride and ammonia includes such steps as low-temp reaction of potassium chloride on sulfuric acid t...
67
96180196
Adsorbent for cesium ion and method or making and using A method comprises the step of spray-drying a slurry of potassium cobalt hexacyanoferrate (KCOHEX) particles to provide monodisperse, substantially spherical KCOHEX particles. In a furthe...
68
96197711
Hydrogen cyanide process and apparatus therefor A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed steam containing methan...
Purifying technology for sodium thiocyanate
A process for purifying sodium thiocyanate (NaSCN) includes high-temp heating the solution, crystal, or solid of NaSCN and separating residual impurities. Under the action of high temp, ...
Method and appts. for reclaiming cyanide from coal gas
A process for recovering cyanides from hot gas generated by coal gasifier includes heat recovery, high-temp dry dusting, fine dust and tar removing, indirect cooling, to obtain ordinary-...
74
00137430
Preparation of substd. aromatic amine The present invention discloses a method for producing aromatic amines such as N-phenyl-p-phenylenediamine, wherein an amine substituted aromatic such as aniline is oxidized with oxygen o...
75
97108417
Novel method for prodn. of nitrate
A process for preparing nitrates includes dissolving ammonium nitrate in ammonia solution, reaction of the solution on excessive solid calcium lime under a certain Vacuum to obtain calci...
Process for preparation of ammonia Process for the preparation of ammonia from a hydrogen and nitrogen-containing synthesis gas comprising steps of (a) admixing to the synthesis gas recycle gas from an ammonia separation s...
Method for producing solid sodium cyanide
The present invention belong's to a method for producing solid sodium cyanide in chemical industry field. Said method includes the following steps: using hydrogen cyanide and caustic sod...
80
97108091
Desulfurizing method for systhetic ammonia carbonization system
The present invention discloses a desulfurizing process for carbonization system of synthetic ammonia production. It is characterized by adding desulfurizing agent zinc particles accordi...
Dry recovery technology for material
A process for drying and recovering material is especially suitable for recovering the carbon black as by-product generated during preparing synthetic gas with heavy oil in methanol or s...
Anticaking agent for ammonium nitrate
An anti-caking agent for ammonium nitrate is prepared from long-chain alkylamine, disperser, penetrant, activated filler and water-proofing agent through compounding. The ammonium nitrat...
Process for production of prussic acid A process for producing prussic acid by subjecting methanol to a gas-phase contact reaction with molecular oxygen and ammonia in the presence of a catalyst, wherein said catalyst is an ox...
Process and reactor for preparation of ammonia Process for the preparation of ammonia at elevated pressure and temperature in an ammonia reactor, comprising passing a process stream of ammonia synthesis gas successively through at lea...
93
98113901
Process for regenerating accumulator desulfurating agent
The present invention provides a new method for regeneration of accumulator desulfurizer. Firstly, it uses ammonium sulfate and calcium hydroxide to make them react to produce calcium su...
94
98111898
Micro-dust purifier in technological gas
An apparatus for removing micro dust from industrial gas features that water is sprayed into chemical gas pipeline in which the industrial gas flows to sufficiently contact with the micr...
95
98806713
Inductively heated catalytic reactor An improved gas phase reactor (10) for continuously conducting a catalyzed chemical reaction at elevated temperature involving a reactor vessel (11) wherein the gaseous reactant passing t...
96
98806717
Method of inductively igniting a chemical reaction An improved method of igniting a catalyzed gas phase chemical reaction involving the act of providing a reactor vessel (10), wherein the gaseous reactant, continuously passing through the...
Process for preparing refined ammonium by joint method
A process for preparing refined ammonium by joint method features use of two-stage washing. For the stage-one washing, the ammonia mother liquid in large-scale production and agricultura...
