| Patents for C01D 5 - Sulfates or sulfites of sodium, potassium, or alkali metals in general (1,848) |
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| 05/21/2014 | CN203602366U 一种元明粉的制备系统 Preparation system for sodium sulfate in |
| 05/21/2014 | CN103803753A 一种h酸工业废水的综合回收处理方法 An integrated approach acid recycling of industrial wastewater h |
| 05/21/2014 | CN103803656A 一种铁酸锰纳米材料涂层结晶器在磺化碱熔法生产萘酚过程中提取副产亚硫酸钠的方法 Byproduct sodium sulfite method of iron, manganese coating crystalline nanomaterials in the production of sulfonated naphthol alkali fusion process to extract |
| 05/21/2014 | CN103803586A 分段浓缩的硫酸钾的生产方法 Segment concentrated potassium sulfate production methods |
| 05/14/2014 | CN203593634U 用于液体分离芒硝的生产设备 Glauber's salt production for liquid separation equipment |
| 05/14/2014 | CN203593633U 节能型盐硝联产装置 Energy-efficient cogeneration unit salt and sodium |
| 05/14/2014 | CN103787436A 一种2-萘酚生产废水处理方法 One kind of 2-naphthol wastewater treatment method |
| 05/14/2014 | CN103787373A 净化多硫化物硅烷偶联剂副产盐的方法 The method of purifying salt byproduct polysulfide silane coupling agent |
| 05/14/2014 | CN102847338B 一种酸吸收结晶装置及其工艺流程 An acid absorption of crystalline device and process |
| 05/14/2014 | CN102336647B Ak糖结晶母液的用途及利用结晶母液制备钾盐的方法 Purpose and use of crystalline potassium liquor preparation methods Ak sugar crystallization mother liquor |
| 05/13/2014 | US8721999 Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia |
| 05/07/2014 | CN203582517U 硫酸沉淀法白炭黑废水处理回收循环利用景观池 Sulfuric acid precipitated silica wastewater recycling recycling landscape pool |
| 05/07/2014 | CN203582511U 硫酸法白炭黑废水循环利用及硫酸钠回收装置 Sulfuric acid silica waste water recycling and sodium recovery |
| 05/07/2014 | CN103771612A 丙烯生产中废碱液的处理方法 Treatment of waste lye propylene production |
| 05/07/2014 | CN103771459A 一种从含铅脱硫废液中回收硫酸钠的方法 A recovered from the lead-sulfate method in FGD |
| 05/07/2014 | CN103771458A 一种硼酸生产尾液制取硫酸钾的方法 One kind of boric acid liquid preparation of potassium sulfate production liner method |
| 05/07/2014 | CN103771457A 一种丙烯生产中废碱液的处理方法 Lye treatment propylene production waste |
| 05/07/2014 | CN103768902A 湿法烟气脱硫工艺中亚硫酸盐浆液氧化方法及其设备 Sulfite in wet flue gas desulfurization slurry oxidation method and apparatus |
| 05/07/2014 | CN101538057B 一种卤水镁锂分离及提锂方法 One kind of lithium brine separation and extraction of lithium magnesium methods |
| 04/30/2014 | CN103754897A Method for preparing potassium sulfate by absorbing and oxidizing sulfur dioxide flue gas |
| 04/30/2014 | CN103754896A Method for extracting mirabilite from sodium hydrosulfite wastewater |
| 04/29/2014 | US8709375 Oil extractor and the preparation method thereof |
| 04/23/2014 | CN103739135A Copper smelting wastewater processing technology |
| 04/23/2014 | CN103738983A Technology for preparing kainite with potassium-containing heptahydrate epsomite raw product |
| 04/23/2014 | CN103736383A Pure sodium carbonate flue gas desulfurization process and flue gas desulfurization system |
| 04/23/2014 | CN102827045B Method and apparatus for removing impurity in secondary methionine mother liquor |
| 04/16/2014 | CN203545699U Sodium sulfate-containing sewage treatment device |
| 04/16/2014 | CN103723849A Process and device for recovering Fe(OH)2 and Na2SO4 from ferric oxide stain material wastewater concentration system |
| 04/16/2014 | CN103723746A Preparation method for producing anhydrous sodium sulfate with 2,7-dihydroxy naphthalene mother liquid |
| 04/16/2014 | CN103723736A Resource recovery method in white carbon black production process |
| 04/16/2014 | CN103721536A Desulfurization process |
| 04/16/2014 | CN102512931B Method for preparing sodium hydrosulphite by utilization of tail gas from acyl chloride production |
| 04/09/2014 | CN103709027A Recovery method for aliphatic acid metal salt waste liquid |
| 04/09/2014 | CN103708524A Method for preparing chemical materials by decomposing potassium-bearing rock by fluorosilicic acid cycling method |
| 04/09/2014 | CN103708506A Control method of multi-effect evaporation nitrate making process |
| 04/09/2014 | CN103708505A Method for extracting soluble potassium sulfate by using orthoclase |
| 04/02/2014 | CN203513299U High-efficiency salt-sodium nitrate co-production device |
| 04/02/2014 | CN103693780A Method and device for nitrified water purification used for comprehensive utilization of energy conservation and emission reduction |
| 04/02/2014 | CN103693661A Process for producing high-purity potassium nitrate with low-quality raw materials |
| 04/02/2014 | CN103693660A Process for producing sodium sulfate and sodium chloride from high-salinity nitrate aqueous solution by adopting circulation method |
| 04/02/2014 | CN102849757B Floatation method for extracting aphthitalite and potassium chloride from carbonate type salt lake |
| 04/02/2014 | CN102674404B Method and device for accurately feeding mannheim reaction furnace |
| 04/02/2014 | CN102515279B Comprehensive extraction method of ferro-silico-aluminum in gangue |
| 03/26/2014 | CN103130370B Dye acidic waste water treatment method and device |
| 03/26/2014 | CN102442888B Method for producing 1,5-dihydroxy naphthalene |
| 03/19/2014 | CN203486921U Energy-saving device for melting ore by utilizing waste heat |
| 03/19/2014 | CN103638804A Electrochemical desulphurization method and application of intermediate product |
| 03/19/2014 | CN102674405B Method for preparing potassium sulfate by using picromerite |
| 03/13/2014 | US20140072507 Methods of processing solutions of potassium sulfate and magnesium sulfate, methods of producing potassium sulfate, and related systems |
| 03/12/2014 | CN103626637A Environment-friendly production process of 2-naphthol |
| 03/12/2014 | CN103626205A Method for separating potassium sulfate from ammonium sulfate |
| 03/06/2014 | WO2014033687A1 Integrated process of production of potassium sulphate and ammonium sulfate from kainite mixed salt |
| 03/05/2014 | CN102531263B Method for treating saponified wastewater generated in production process of epoxy compound |
| 02/27/2014 | DE102012016992A1 Recovering e.g. potassium sulfate or potassium magnesium sulfate, anhydrous or aqueous magnesium sulfate, and optionally gypsum from complex composition by a sequence of process steps consisting of e.g. crushing and mechanical separation |
| 02/26/2014 | CN103601328A Process for 6-APA or 7-ADCA production waste water recycling resource and biochemistry pretreatment |
| 02/26/2014 | CN103601272A Method for preparing refining agent from dechlorinated light salt brine |
| 02/26/2014 | CN103601228A Method for preparation of chemical raw materials by use of fly ash as raw material |
| 02/26/2014 | CN103601218A Method for exploitation and utilization of polyhalite-halite accompanying mineral deposit |
| 02/25/2014 | US8658122 Process to produce sodium sulfate and magnesium hydroxide |
| 02/19/2014 | CN103588625A Method for synthesizing anisol by utilizing methyl sodium sulfate waste residue |
| 02/13/2014 | DE102009018956B4 Verfahren zur Herstellung von Kaliumsulfat aus Bittern A process for producing potassium sulfate from Bittern |
| 02/12/2014 | CN203425552U Concentration and crystallization equipment for sodium sulfite |
| 02/12/2014 | CN103570047A Method for preparing compound through double decomposition reaction by using recyclable assistants |
| 02/12/2014 | CN103570046A Process for preparing high-purity sodium sulfite through sulfuric acid production industrial exhaust |
| 02/12/2014 | CN103570045A Method for processing mixture of sodium sulfate and ammonium sulfate by using sodium chloride |
| 02/12/2014 | CN103570044A Method for processing waste mixed liquid of sodium sulfate and ammonium sulfate by using carbonate |
| 02/12/2014 | CN103253819B Production technology for treating ternary-monomer wastewater and extracting sodium sulfate |
| 02/05/2014 | CN103553092A Method for preparing carnallite ore from mixed brine by using natural energy |
| 02/05/2014 | CN103553091A Method for extracting Mg, K, B and Li from mixed brine by utilizing natural energy |
| 02/05/2014 | CN103553065A Method for preparing boron ore from mixed brine by using natural energy |
| 01/29/2014 | CN203411426U Zero-emission mixed waste lye treatment system |
| 01/29/2014 | CN103539281A White carbon black production wastewater treatment technology |
| 01/29/2014 | CN103539165A Method for producing potassium sulfate by utilizing insoluble rocks containing potassium |
| 01/29/2014 | CN103539164A Method for refining sodium sulfate powder from chromium-containing mirabilite |
| 01/29/2014 | CN103539163A Technology for preparing potassium sulfate by use of potassium feldspar |
| 01/29/2014 | CN103539162A Process method for preparing ammonium-potassium sulfate from potassium feldspar |
| 01/29/2014 | CN103539161A Method for preparing sylvite ore from mixed brine by use of natural energy |
| 01/29/2014 | CN103539157A Process for recovering fluorine resource from decomposed potassium feldspar residue |
| 01/29/2014 | CN103539148A Method for preparing molecular sieve by use of potassium feldspar |
| 01/29/2014 | CN103539127A Process for decomposing potash feldspars |
| 01/29/2014 | CN102897802B Method for recycling reagent-grade anhydrous sodium sulfate from basic cupric carbonate production waste liquid |
| 01/22/2014 | CN203402929U Production system for producing vegetative fulvic acid, potassium sulfate concentrated solution and vegetative organic bacterial manure by alcohol biological wastewater |
| 01/22/2014 | CN103524384A Salt-extracting treatment method of inorganic salt sodium sulfate in sulfonate liquor |
| 01/22/2014 | CN103523754A Comprehensive utilization technology of chlorine dioxide reaction raffinate |
| 01/15/2014 | CN203392971U New recovery system for recovering acid and alkali from viscose sodium sulfate waste liquid through bipolar membrane electrodialysis process |
| 01/15/2014 | CN203392872U Vapor recovery system for sodium sulfite evaporation and concentration process |
| 01/15/2014 | CN103509365A Indigo blue oxidation filter cake post-treatment process |
| 01/08/2014 | CN103496722A Method for preparing high-purity sodium sulfite through supercritical hydrothermal reduction |
| 01/08/2014 | CN103496721A Method for preparing agricultural potassium sulphate by using straw ash generated in biomass power plants |
| 01/08/2014 | CN103496720A Method for low-temperature concentration of unsaturated salt lake brine |
| 01/08/2014 | CN102452673B Recovery processing method of waste alkaline liquor in ethylene plant |
| 01/01/2014 | CN103484693A Harmlessness method for treating arsenic in antimony oxide |
| 01/01/2014 | CN103482809A Technology for realizing zero discharge of waste water caused by white carbon black production |
| 01/01/2014 | CN103482657A Method for concentrating unsaturated salt lake brine at low temperature |
| 01/01/2014 | CN103482575A Acidolysis method of fluorosilicate |
| 12/25/2013 | CN103466662A Method for preparing potassium sulfate with large grain diameter by utilizing reaction crystallization |
| 12/25/2013 | CN103466661A Method for mineralizing CO2 and co-producing potassium sulfate by using potassium feldspar-calcium sulfate |
| 12/18/2013 | CN203346096U Sodium-sulfate brine sextuple-effect evaporation sodium nitrate production device |
| 12/18/2013 | CN103449654A Treatment method of Omeprazole intermediate production wastewater |
| 12/11/2013 | CN203329605U Sulfur dioxide tail gas circulating absorption system |