Patents
Sitemap › C01 - Inorganic chemistry › C01D - Compounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium › C01D 5 - Sulfates or sulfites of sodium, potassium, or alkali metals in general
Patents for C01D 5 - Sulfates or sulfites of sodium, potassium, or alkali metals in general (1,848)
01/2011
01/12/2011CN101941722A Preparation method of anhydrous sodium sulfate
01/12/2011CN101941721A Technique for producing medicinal mirabilite by continuous crystallization
12/2010
12/29/2010CN101928020A Continuous crystallization manufacturing process of medicinal glauber salt
12/29/2010CA2766767A1 Process for production of commercial quality potassium nitrate from polyhalite
12/22/2010CN101428832B Potassium sulfate extracted from sintering dust separation ash and method for producing the same
12/15/2010CN101913633A Extraction technology of alumina and potassium sulfate from alunite by using hot-pressing leaching process
12/15/2010CN101913625A Method for preparing caustic soda, calcium carbonate, sodium thiosulfide and sodium iodide from sodium sulphide waste slag
12/14/2010US7850822 forminf and treating a sodium cellulose xanthate solution to produce regenerated cellulose comprising carbon disulfide, hydrogen sulfide, sodium thiocarbonate, sodium thiosulfate, and sodium sulfite, which are oxidized to sodium sulfate and crystallized
12/08/2010CN101906227A Polypropylene super-short fiber composition and preparation method thereof
12/08/2010CN101905942A Method for treating condensed mother solution of azodicarbonamide foaming agent
12/08/2010CN101185817B Method for preparing nano alumina fiber film material
12/01/2010CN101898773A Method for preparing sodium sulfate, bleaching powder and calcium chloride from phosphogypsum
12/01/2010CN101559959B Process for producing potassium sulfate and ammonia sulfate by wet decomposing potassium feldspar
12/01/2010CN101486475B Method for coproduction of potassium sulfate and superfine light calcium carbonate from fluorogypsum
11/2010
11/25/2010DE102007058666B4 Verfahren zur Verarbeitung von Polyhalit zum Zweck der Herstellung von Langbeinit, Kaliumsulfat und Flüssigdünger A method of processing polyhalite for the purpose of production of langbeinite, potassium sulfate and liquid fertilizer
11/24/2010CN201648161U Device recycling salt from waste water with high salt concentration
11/10/2010CN101883747A Bisulphite treatment of RNA
11/10/2010CN101318671B Cleaning and recycling process for by-product sodium sulfite of cartap
11/04/2010DE102009017097A1 Verfahren zur kontinuierlichen Behandlung einer Salz enthaltenden Lösung Process for the continuous treatment of a salt solution containing
11/03/2010CN101234827B Treatment and resource reclaiming method for chromium-containing wastewater containing high concentration sodium sulfate
10/2010
10/27/2010CN101585548B Method for preparing inorganic sylvine crystal and feed additive by using molasses fermented waste liquid
10/27/2010CN101066824B Process of treating and reusing effluent from 1-amino-8-naphthol-3, 6-disulfonic acid production
10/21/2010US20100266482 Process for the Time Recovery of Sulphate of Potash (SOP) From Sulphate Rich Bittern
10/13/2010CN1740097B Clean production process of nereistoxin and similar bionic pesticide
10/07/2010US20100254867 Process to Produce Sodium Sulfate and Magnesium Hydroxide
10/06/2010CN1789129B Method for extracting potassium sulphate by magnesium sulfate sub-type potassium-containing salt lake brine water
10/06/2010CN101850992A Method for preparing calcium carbonate and co-producing sodium sulfate by using phosphorus gypsum and soda ash
10/06/2010CA2661479A1 Potassium magnesium fertilizer
09/2010
09/30/2010WO2010109492A1 Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia
09/30/2010CA2756763A1 Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia
09/29/2010CN101844781A Manufacturing technique of high-purity thenardite
09/29/2010CN101844780A Process for treating mirabilite liquid
09/29/2010CN101844779A Manufacturing process of coarse grained thenardite
09/29/2010CN101844778A Drying process for thenardite
09/29/2010CN101565191B Method for preparing anhydrous sodium sulfite by circularly absorbing sulfur dioxide in exhaust gas
09/29/2010CN101412526B Method for preparing sodium sulphite with tail gas from thionyl chloride synthesis process
09/22/2010CN101837994A Production process of medicinal mirabilite
09/22/2010CN101148261B Low-phosphorus low-boron high-pure anhydrous sodium carbonate and preparation method thereof
09/15/2010CN101835727A Process of removing calcium and obtaining sulfate salts from an aqueous sugar solution
09/15/2010CN101830487A Process for manufacturing sodium sulfate for continuously crystallized medicament
09/15/2010CN101830486A Preparation process of ultrafine particle thenardite
09/15/2010CN101559960B Method for removing excessive hydrofluosilicic acid in process of producing potassium sulfate by low-temperature decomposing of potassium feldspar by hydrofluosilicic acid
09/15/2010CN101323458B Method for comprehensively processing petroleum acid slag and alkaline residue
09/10/2010WO2010100264A1 Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite
09/09/2010US20100226840 Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite
08/2010
08/25/2010CN101811701A Environment-friendly production process for preparing white carbon black and sodium sulfite by adopting sodium sulfate
08/25/2010CN101229922B Method for abstracting potassium from straw by microwave technique
08/24/2010US7780941 Potassium magnesium fertilizer
08/18/2010CN101808936A Chemical process to produce hydrogen chloride and chloride-free compound potassium sulfate fertilizers or other metal sulfates
08/18/2010CN101804987A Preparation method of white carbon black
08/17/2010CA2443174C Methods of making cesium salts and other alkali metal salts
08/11/2010EP2215035A1 Bisulphite treatment of rna
08/11/2010CN101798101A Process for preparing potassium sulfate crystal by utilizing industrial wastewater from 26 acid production
08/11/2010CN101041445B Method for preparing potassium salt by polarity solvent extraction process
08/04/2010CN101792124A Method for producing hydrogen chloride and sodium hydrogen sulfate crystals by taking rock salt as raw material
07/2010
07/28/2010CN101786738A Ecological optimization production process for all-seawater industry
07/28/2010CN101786643A Method for comprehensively utilizing byproduct salt and alkali waste in production of hydrazine hydrate by urea process
07/21/2010CN201530784U Device for producing powdered mineral admixture from brown fused alumina smoke dust
07/21/2010CN101391782B Method for simultaneously producing two different content industry anhydrous sodium sulfate
06/2010
06/30/2010CN101759578A Method for recovering useful ingredients in waste glycin mother liquor
06/30/2010CN101759303A Scale inhibitor used in mirabilite production
06/30/2010CN101759203A Process and apparatus for preparing sodium sulfite in production of ion-film caustic soda
06/30/2010CN101244831B Method and device for recycling anhydrous sodium sulfate from desulfurization lead plaster filter liquor
06/23/2010EP2197814A1 Process of removing calcium and obtaining sulfate salts from an aqueous sugar solution
06/23/2010CN101746783A Method for co-production of potassium sulphate and ammonium chloride through liquid extraction
06/16/2010CN1810644B Improved process of preparing potassium sulfate with bittern containing potassium and magnesium sulfite
06/16/2010CN101734824A Process for treating saponifiable waste alkali liquor by chemical method
06/16/2010CN101734688A Production technique of sodium sulfate decahydrate and magnesium sulfate heptahydrate
06/16/2010CN101353354B Method for preparing low zinc low iron clarification rongalite
06/09/2010CN101723845A Method for producing m-acetamino-N,N-diethyl aniline
06/09/2010CN101723411A Process and equipment for producing potassium sulfate compound fertilizer by integrally utilizing tail gas generated in sulphuric acid production
06/09/2010CN101723410A Method for recovering potassium elements from sintering ashes of steel and iron works and preparing potassium sulfate
06/02/2010CN101717099A Method for preparing potassium sulfite by using sea water
06/02/2010CN101717098A Method for preparing sodium sulfite by sulfur dioxide in tail gas generated by calcining molybdenum concentrate
05/2010
05/26/2010EP2188211A1 Chemical process to produce hydrogen chloride and chloride-free compound potassium sulfate fertilizers or other metal sulfates
05/26/2010CN101712479A Method for preparing sodium sulfite by utilizing total alkali in hydrazine hydrate
05/19/2010CN101709043A Method for comprehensively utilizing waste gas and waste liquid in production of biurea
05/12/2010CN1962443B Improved process for the recovery of sulphate of potash (sop) from sulphate rich bittern
05/12/2010CN101704687A Method for producing potassium sulphate by decomposing potassium feldspar at low temperature
05/12/2010CN101428915B Method for zero discharge processing of waste saponification lye of cyclohexanone produced by cyclohexane oxidation technology
05/05/2010CN101700898A Recovery method of inorganic salt in technology of molybdenum oxide or molybdenum waste alkali leaching-extraction preparing ammonium molybdate
05/05/2010CN101700895A Preparation method of medical-grade sodium pyrosulfite
05/05/2010CN101700894A Technology for preparing and synthesizing potassium sulphate by beneficiating method
05/05/2010CN101700893A Method for producing sodium sulfate by petrochemical phenol residues and method for recycling hydrochloric acid and paracresol
05/05/2010CN101700892A Material cycling system formed by phenol residues in petrochemical industry and hydrochloric acid
04/2010
04/28/2010CN201441848U Sodium sulfite sediment emptying device
04/14/2010CN1803615B Method for preparing potassium sulphate by chromium contained Glauber salt
04/14/2010CN101693527A Four material circulating systems formed by using limestone and chloralkali industry
04/07/2010EP2172429A1 Method for the production of sodium sulphate and magnesium hydroxide
04/06/2010CA2589714C Process and apparatus for producing chlorine dioxide
03/2010
03/24/2010CN101676208A Co-production technology of sodium silicate and gypsum whisker with mirabilite method
03/24/2010CN101676205A Co-production technology of sodium silicate, sodium bisulfite and gypsum whisker with mirabilite method
03/17/2010CN101671039A Method for comprehensively recycling salt-manufacturing waste liquor
03/16/2010US7678360 Alunite type compound particles, manufacturing process thereof and use thereof
03/04/2010US20100056362 Thermocatalytically Active Coating, Substrate Having The Thermocatalytically Active Coating At Least In Parts, And Process For Producing Same
02/2010
02/10/2010CN201400578Y Evaporating pot and baking bed for producing anhydrous sodium sulfate
01/2010
01/20/2010CN100582008C Method for extracting sodium bisulfate from sodium chlorite waste acid
01/14/2010US20100008845 Process for production of sodium bisulfite
01/13/2010CN101624194A Production method for co-production of mirabilite and salt and production device thereof
12/2009
12/30/2009CN101613118A Method for preparing medicinal sodium bisulfite
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