| Patents for C01D 5 - Sulfates or sulfites of sodium, potassium, or alkali metals in general (1,848) |
|---|
| 05/22/2013 | CN103112897A Method for simultaneously extracting vanadium, aluminum and potassium from stone coal |
| 05/22/2013 | CN102652759B Process for preparing pharmaceutical mirabilite oral liquid containing dimethyl silicone oil |
| 05/22/2013 | CN101906227B Polypropylene super-short fiber composition and preparation method thereof |
| 05/16/2013 | US20130121900 Methods of processing polyhalite ore, methods of producing potassium sulfate, and related systems |
| 05/15/2013 | CN202936209U Co-production device of salt and mirabilite by mirabilite-type brine mechanical vapor recompression method |
| 05/08/2013 | CN202921006U Double-drum drying equipment for production of mirabilite |
| 05/08/2013 | CN103086544A Calcium mud treatment and nitrate water recycling method, and apparatus thereof |
| 05/08/2013 | CN103086403A Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus |
| 05/08/2013 | CN102320629B Method for producing reagent grade sodium sulfate by using white carbon black mother solution |
| 04/30/2013 | CA2584696C Method for crystallizing soluble salts of divalent anions from brine |
| 04/24/2013 | CN202898055U Device for heating air through sulfur dioxide residual heat |
| 04/24/2013 | CN103058442A Method for processing secondary salt in desulphurization waste liquid |
| 04/24/2013 | CN103058229A Application for disodium edetate dehydrate |
| 04/24/2013 | CN103058228A Method for preparing sodium hydrosulphite from smeltery flue gas |
| 04/24/2013 | CN103058227A Process and device for recovering sodium sulphide wastewater in barium sulphate production |
| 04/24/2013 | CN102311189B System for treatment of acid mine drainage and resource recovery of iron, aluminum, copper and zinc in drainage |
| 04/24/2013 | CN102275955B Method for preparing mirabilite by using sulfonated end gas absorption solution, and apparatus thereof |
| 04/17/2013 | CN202880916U Reaction crystallizer for generating potassium sulphate by adopting ammonia desulfurization process |
| 04/17/2013 | CN103043841A ADCA (Azodicarbonamide) foaming agent liquid waste disposal process |
| 04/17/2013 | CN103043688A Method for preparing sodium metabisulfite by utilizing sodium carbonate decahydrate |
| 04/11/2013 | US20130089478 Process to obtain potassium sulfate from vinasse |
| 04/10/2013 | CN202864937U Nitrate making purification device |
| 04/10/2013 | CN102167365B Technique for preparing agricultural potassium sulfate by utilizing kaliophilite powder |
| 04/10/2013 | CN102139891B Device for rapidly manufacturing industrial salt by utilizing sylvine mine |
| 04/09/2013 | US8414662 Salt brine capillary crystallization |
| 04/03/2013 | CN202849082U Sodium sulfate type bittern mirabilite extraction device |
| 04/03/2013 | CN103025660A Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives |
| 04/03/2013 | CN103011481A Method for treating production waste liquid of vitamin B1 and obtaining byproducts |
| 04/03/2013 | CN103011206A Method utilizing alunite in flotation tailing to produce potassium sulfate and auxiliary products thereof |
| 04/03/2013 | CN103011205A Method for preparing potassium sulphate and potassium sodium composite feldspar from potassium feldspar in mirabilite way |
| 04/03/2013 | CN102697801B Manufacturing process of flavouring-containing medicinal mirabilite |
| 04/03/2013 | CN102670644B Process for preparing high-purity medical mirabilite oral liquid |
| 04/02/2013 | US8409542 Method and system for the production of potassium sulfate from potassium chloride |
| 03/27/2013 | CN102989265A Treatment method of acyl chloride production tail gas |
| 03/27/2013 | CN102344220B Method for treating metronidazole waste water |
| 03/20/2013 | CN102976946A Method for synthesizing dimethyl isophthalate |
| 03/13/2013 | EP2566815A1 Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives |
| 03/13/2013 | CN202785692U Production system of sodium metabisulfite |
| 03/13/2013 | CN102964019A Energy-saving evaporation treatment process of high-salinity wastewater |
| 03/13/2013 | CN102963913A Evaporation and concentration process of sodium sulfite solution |
| 03/06/2013 | CN102951658A Denitration salt and sulfate co-production process of five-effect vacuum evaporation salt production heat pump |
| 02/27/2013 | CN202754921U Device for removing impurities in two-stage methionine mother liquid |
| 02/27/2013 | CN202751833U Acid absorption and crystallization device |
| 02/27/2013 | CN102173455B Method for producing chromium-containing product by using chromium-containing waste residue |
| 02/20/2013 | CN102936075A Method for recycling industrial wastewater generated during alanine production |
| 02/20/2013 | CN102936054A Method for separating naphthalene sulfonic acid, sulfuric acid and sulfurous acid from industrial wastewater |
| 02/20/2013 | CN102936021A Application of calcium-chloride-containing aqueous solution in conversion exploitation of glauberite resource and conversion exploitation method of glauberite resource |
| 02/13/2013 | CN102924247A Rongalite solution stabilizing agent and application thereof in liquid rongalite product production |
| 02/13/2013 | CN102923895A Method for disposing cyclohexanone saponified waste liquid |
| 02/13/2013 | CN102923877A Treatment technology for mirabilite tailing wastewater |
| 02/12/2013 | US8372162 Method of producing sodium carbonate decahydrate |
| 02/06/2013 | CN102910651A Counterflow circulation washing extraction method by using nitratine |
| 02/06/2013 | CN102910594A Method for concentrating waste sulfuric acid by utilizing waste heat of titanium dioxide calcinator |
| 02/05/2013 | US8367036 Alkali/transition metal halo-and hydroxy-phosphates and related electrode active materials |
| 02/05/2013 | US8366793 Method of decarbonation and its use in producing crystalline sodium sulfite or other alkali products |
| 01/30/2013 | CN102898297A Processing method of metronidazole industrial waste mixed salt |
| 01/30/2013 | CN102897802A Method for recycling reagent-grade anhydrous sodium sulfate from basic cupric carbonate production waste liquid |
| 01/23/2013 | CN202682857U Efficient thickening precipitator |
| 01/23/2013 | CN102887544A Method for heating and detoxifying hexavalent chromium by utilizing electric heating tube and application for method |
| 01/23/2013 | CN102887534A Method for recovering reagent level anhydrous sodium sulfate from raffinate obtained in process of extracting nickel from nickel sulfate solution |
| 01/23/2013 | CN102887533A Method for producing anhydrous Na2SO3 by using alkali-containing waste mother liquor |
| 01/16/2013 | CN102874958A Method for treating and reusing sodium sulfate containing organic waste water |
| 01/09/2013 | CN102862998A Method for producing sodium hydrogen sulfate and/or hydrate thereof by utilizing side product waste acid residue generated in production of chromic anhydride through sulfuric acid method |
| 01/09/2013 | CN102862962A Application of elementary-substance selenium as catalyzer |
| 01/02/2013 | CN202643337U Device for producing anhydrous sodium sulfate |
| 01/02/2013 | CN202638263U Tail gas absorption device |
| 01/02/2013 | CN102849757A Floatation method for extracting aphthitalite and potassium chloride from carbonate type salt lake |
| 01/02/2013 | CN102849756A Device and method for nitre extraction of sodium sulfate type bittern |
| 01/02/2013 | CN102847338A Acid-absorbing crystallization device and process flow thereof |
| 01/02/2013 | CN102276099B Comprehensive treatment method of waste water from laterite-nickel ore wet smelting |
| 01/02/2013 | CN101993256B Method for preparing agricultural potassium sulfate from potassium-rich rock |
| 01/02/2013 | CN101905942B Method for treating condensed mother solution of azodicarbonamide foaming agent |
| 12/26/2012 | CN202625868U Automatic accurate feeding device of Mannheim reacting furnace |
| 12/26/2012 | CN202620771U Evaporative crystallization system |
| 12/26/2012 | CN102838138A Process for preparing agricultural ammonium potassium sulfate from biotite powder |
| 12/26/2012 | CN102838134A Sal prunella coproduction technology and device adopting sodium sulfate type bittern mechanical vapour recompression method |
| 12/20/2012 | WO2012171117A1 Method and system for the production of potassium sulfate from potassium chloride |
| 12/20/2012 | US20120321547 Method and system for the production of potassium sulfate from potassium chloride |
| 12/19/2012 | CN202605887U Filtration device for producing anhydrous sodium sulfite |
| 12/19/2012 | CN202605750U Evaporating plant used in anhydrous sodium sulfite production process |
| 12/19/2012 | CN102827045A Method and apparatus for removing impurity in secondary methionine mother liquor |
| 12/14/2012 | CA2743608A1 Method and system for the production of potassium sulfate from potassium chloride |
| 12/12/2012 | CN102815812A Optimization process method for recovering sodium sulfate form ethylene waste alkali |
| 12/12/2012 | CN102815811A Short flow method for recycling sodium sulfate from ethylene waste alkali liquid |
| 12/12/2012 | CN102814112A Method and device for desulfurizing and denitrating jointly |
| 12/05/2012 | CN102807235A Method for producing potassium sulfate by utilizing combustion ash content of molasses alcohol concentrated waste liquid |
| 11/28/2012 | CN102796019A Method for environment-friendly clean production of high-purity ethylene diamine tetraacetic acid (EDTA) |
| 11/22/2012 | US20120294866 Pharmaceutical formulation for proteins |
| 11/21/2012 | CN202542886U Reliable durable Mannheim furnace |
| 11/21/2012 | CN102786176A Comprehensive utilization method of catalytic cracking gasoline sludge |
| 11/21/2012 | CN102786068A Method for preparing anhydrous sodium sulphate by mirabilite during chlor-alkali production |
| 11/21/2012 | CN102249262B Concentration and cold-precipitation separation method of sodium sulfate and ammonium sulfate from vanadium-precipitation mother liquor high-salt wastewater |
| 11/14/2012 | CN202529863U Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid |
| 11/14/2012 | CN102092875B Chemical waste water treatment method in the process of producing 2,6 acid |
| 10/24/2012 | CN202499720U Sodium sulfate extraction unit |
| 10/24/2012 | CN102745755A Process for recovering sodium sulfate crystal in sebacic acid production |
| 10/24/2012 | CN102745720A Denitration method in caustic soda technology |
| 10/24/2012 | CN102744238A Comprehensive utilization method of plant ash for biomass power plant |
| 10/24/2012 | CN101844778B Drying process for thenardite |
| 10/17/2012 | CN202492375U Mannheim reacting furnace |