| Patents for C01D 5 - Sulfates or sulfites of sodium, potassium, or alkali metals in general (1,848) |
|---|
| 08/17/2011 | CN102153113A Process for producing mirabilite type bittern, sodium carbonate, sodium chloride, sodium sulfate and ammonium chloride |
| 08/17/2011 | CN102153111A Method for preparing anhydrous sodium hydrogen sulfate by using ethephon production waste liquid |
| 08/17/2011 | CN101717098B Method for preparing sodium sulfite by sulfur dioxide in tail gas generated by calcining molybdenum concentrate |
| 08/10/2011 | CN101570370B Method for high resource treatment of cyclohexanone waste saponification lye |
| 08/03/2011 | CN201914925U 一种芒硝脱水干燥系统 One kind of Glauber's salt dehydration system |
| 08/03/2011 | CN102139891A Method for rapidly manufacturing industrial salt by utilizing sylvine mine and device |
| 08/03/2011 | CN101811701B Environment-friendly production process for preparing white carbon black and sodium sulfite by adopting sodium sulfate |
| 08/03/2011 | CN101613118B Method for preparing medicinal sodium bisulfite |
| 07/27/2011 | CN201906482U Vacuum crystallizing device |
| 07/27/2011 | CN102134131A Method for treating wastewater generated in process of synthesizing vanillin by glyoxylic acid method |
| 07/27/2011 | CN101104533B Method for treating waste water of H-acid production |
| 07/20/2011 | CN102126777A Treatment method of phenol sodium salt waste water |
| 07/20/2011 | CN101759303B Scale inhibitor used in mirabilite production |
| 07/13/2011 | CN101955284B Method of treating cyclohexanone saponification waste alkali liquor |
| 07/06/2011 | CN102115423A Method for preparing pentaerythritol and coproducing barium formate and sodium sulfate |
| 07/06/2011 | CN102115418A Method for producing pentaerythritol as well as potassium formate and sodium sulfate by using waste liquor generated during preparation of pentaerythritol |
| 07/06/2011 | CN102115407A Method for producing co-product of pentaerythritol as well as potassium formate and sodium sulfate |
| 07/06/2011 | CN102115389A Method for producing pentaerythritol with co-production of cobalt formate and sodium sulfate from waste liquid generated in pentaerythritol preparation |
| 07/06/2011 | CN102115386A Method for producing pentaerythritol, strontium formate and sodium sulfate with waste liquor generated during preparation of pentaerythritol |
| 07/06/2011 | CN102115385A Method for producing co-product of pentaerythritol as well as manganese formate and sodium sulfate by waste liquid generated by preparation of pentaerythritol |
| 07/06/2011 | CN102115384A Method for producing pentaerythritol with co-production of zinc formate and sodium sulfate from waste liquid generated in pentaerythritol preparation |
| 07/06/2011 | CN102115383A Method for producing pentaerythritol and co-producing lithium formate and sodium sulfate by utilizing waste liquid generated by preparing pentaerythritol |
| 07/06/2011 | CN102115382A Method for producing co-product of pentaerythritol as well as ammonium formate and sodium sulfate by waste liquid generated by preparation of pentaerythritol |
| 07/06/2011 | CN102115375A Method for producing pentaerythritol with co-production of calcium formate and sodium sulfate from waste liquid generated in pentaerythritol preparation |
| 07/06/2011 | CN102115362A Method for producing pentaerythritol, and co-producing formic acid and sodium sulfate by using waste liquid from preparation of pentaerythritol |
| 07/06/2011 | CN102115246A Method for preparing co-product of manganese hydroxide and potassium sulfate as well as ammonia water by manganese-containing waste liquid obtained by producing hydroquinone |
| 07/06/2011 | CN102115244A Method for preparing co-product of manganese sulfide and sodium sulfate as well as ammonium sulfide by manganese-containing waste liquid obtained by producing hydroquinone |
| 07/06/2011 | CN102115241A Method for preparing mixed product of nitrate and sodium sulfate by manganese-containing waste liquid |
| 07/06/2011 | CN102115206A Method for producing ferrous carbonate and sodium sulfate from waste acid generated during titanium dioxide production through sulfuric acid method |
| 07/06/2011 | CN102115203A Method for producing manganese nitrate and co-producing sodium sulfate and ammonium nitrate by using manganese-containing waste liquid generated by producing hydroquinone |
| 07/06/2011 | CN102115200A Method for producing manganese nitrate and co-producing potassium sulfate and ammonium nitrate by using manganese-containing waste liquid generated by producing hydroquinone |
| 07/06/2011 | CN102115191A Method for co-production of manganese hydroxide, sodium sulfate and ammonia water from manganese-containing waste liquid generated during hydroquinone production |
| 07/06/2011 | CN102115189A Method for co-production of manganese carbonate, potassium sulfate and ammonium carbonate from manganese-containing waste liquid generated during hydroquinone production |
| 07/06/2011 | CN102115183A Method for co-production of manganese carbonate, sodium sulfate and ammonium carbonate from manganese-containing waste liquid generated during hydroquinone production |
| 07/06/2011 | CN102115180A Method for preparing manganese sulfide coproduced with potassium sulfate and ammonium sulfide coproduced with manganese sulfide by using manganese-containing waste liquor produced during production of hydroquinone |
| 07/06/2011 | CN102115128A Method for preparing carbonate and sodium sulfate mixed product by using manganese-containing waste liquid |
| 07/06/2011 | CN102115064A Method for preparing phosphate and mixed product of sodium phosphate and potassium sulfate from manganese-containing waste liquid |
| 07/06/2011 | CN102115057A Method for preparing co-product of manganese phosphate and potassium sulfate as well as ammonium phosphate by manganese-containing waste liquid obtained by producing hydroquinone |
| 07/06/2011 | CN102115053A Method for preparing mixed phosphates and sodium sulfate product by manganese-containing waste liquid |
| 07/06/2011 | CN102115043A Method for preparing sulfide and mixed product of sodium sulfide and potassium sulfate from manganese-containing waste liquid |
| 07/06/2011 | CN102115042A Method for preparing mixed sulfide product and sodium sulfate product from manganese-containing waste liquid |
| 07/06/2011 | CN101054189B Method of preparing sea crystal from byproduct salt of refining iminodiacetic acid |
| 07/05/2011 | US7972391 Salt brine capillary crystallization |
| 06/29/2011 | CN102107973A Closed cyclic processing method for low-concentration acid wastewater during industrial production |
| 06/29/2011 | CN102107888A Method for preparing potassium sulphate |
| 06/29/2011 | CN101665297B Waste water treatment method in 1-naphthylamine-4-sodium sulfonate production process |
| 06/29/2011 | CN101121536B Combination preparation method for anhydrous magnesium chloride and potassium sulphate |
| 06/22/2011 | CN201873533U Nitrate separation crystallizer by freezing method |
| 06/15/2011 | CN201864580U Device producing thenardite by sodium sulfate decahydrate |
| 06/15/2011 | CN102092880A Process for freezing and denitriding primary brine with membrane method in polyvinyl chloride production |
| 06/15/2011 | CN102092875A Wastewater treatment method |
| 06/15/2011 | CN102092790A Method for preparing manganese hydrate and co-producing sodium sulfate by treating waste sulfuric acid with rhodochrosite |
| 06/15/2011 | CN102092767A Method for producing basic zinc carbonate and sodium sulfate by using zinc sulfate |
| 06/15/2011 | CN101376639B Method for coproduction of dispersants MF and sodium sulphite |
| 06/01/2011 | CN102079603A High-concentration organic and inorganic mixed wastewater treatment and recovery method |
| 05/25/2011 | CN201844202U Device for preventing sodium sulfite crystals from blocking pipeline |
| 05/25/2011 | CN102070272A Wastewater evaporation concentration process and device system |
| 05/25/2011 | CN102070265A Zero emission process of vanadium extraction wastewater |
| 05/25/2011 | CN102070163A Method for preparing magnesium carbonate to co-produce calcium carbonate and sodium sulfate by using pure alkali waste salt sludge |
| 05/25/2011 | CN101044091B Method for crystallizing soluble salts of divalent anions from brine |
| 05/18/2011 | CN102060313A Novel process for producing high-purify magnesium oxide from salt lake brine |
| 05/18/2011 | CN102060312A Method and device for preventing bittern delivery pipeline from scaling |
| 05/18/2011 | CN101624204B Four-great circulation method formed by waste gypsum mud and chlor-alkali industry |
| 05/11/2011 | EP1831102B1 Chemical process and apparatus |
| 05/11/2011 | CN102050471A Method for recycling sodium formate and sodium sulfite from waste sodium hydrosulfite liquid with sodium formate method |
| 05/11/2011 | CN101700895B Preparation method of medical-grade sodium pyrosulfite |
| 05/11/2011 | CN101544384B Method for reclaiming the accessory product acidic mirabilite when producing chlorine dioxide |
| 04/27/2011 | CN102030353A Method for preparing gypsum and simultaneously producing sodium sulfate and hydrochloric acid by distilled ammonia waste liquid of sodium carbonate |
| 04/27/2011 | CN102030342A Method and device for recovering anhydrous sodium sulfate from hydroxy benzotriazole production waste liquor |
| 04/27/2011 | CN101327941B Potassium extraction production process of low grade potassium-containing mixing salt |
| 04/20/2011 | CN101597037B Method for bioleaching phosphor in iron ore containing phosphor |
| 04/19/2011 | US7928033 Catalyst for reducing mercury, a mercury conversion unit, and an apparatus for measuring total mercury in combustion exhaust gas by using the same |
| 04/13/2011 | CN102009988A Method for preparing sodium bisulfite from sulfur dioxide waste gas |
| 04/06/2011 | CN102001928A Method for efficiently separating product formic acid from by-product sodium salt by using sodium formiate method |
| 04/06/2011 | CN102001690A Method for preparing industrial anhydrous sodium sulfate |
| 04/06/2011 | CN102001689A Method for recycling side product of sodium hydrogen sulfate generated by production of chlorine dioxide |
| 04/06/2011 | CN102001688A Process for producing potassium sulfate by decomposing potassium feldspar at low temperature with fluorine-containing acid |
| 04/06/2011 | CN101559961B Process for producing potassium sulfate and polymeric aluminum ferric sulfate by low-temperature decomposing of potassium feldspar by hydrofluosilicic acid |
| 03/30/2011 | CN101993256A Method for preparing agricultural potassium sulfate from potassium-rich rock |
| 03/30/2011 | CN101993100A Silicon tetrafluoride byproduct separation process |
| 03/24/2011 | WO2010109492A8 Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia |
| 03/23/2011 | CN201770493U Glauber salt crystallizing device based on acid bath flash vaporization process |
| 03/23/2011 | CN201770492U Anhydrous sodium sulphate crystallizing device outside acid bath evaporator |
| 03/16/2011 | CN201762115U Sodium sulfate suck filtering device |
| 03/16/2011 | CN101985359A Method for preparing thiocyanate and sulfate by utilizing desulfuration waste liquor in coking plant |
| 03/01/2011 | US7897125 Silicon tetrafluoride byproduct separation process |
| 02/17/2011 | US20110038778 Silicon tetrafluoride byproduct separation process |
| 02/16/2011 | CN101972596A Method for preparing sodium sulfite and elementary sulfur from sulfur dioxide waste gas |
| 02/16/2011 | CN101525189B Method for treating wastewater containing ammonia, vanadium, chrome and sodium sulfate |
| 02/15/2011 | US7887776 Chemical process to produce hydrogen chloride and chloride-free compound potassium sulfate fertilizers or other metal sulfates |
| 02/10/2011 | US20110033560 Preparation and a component intended to be added to a tobacco product |
| 02/09/2011 | CN101966997A Process and device for producing pyrotechnite from sodium sulfate decahydrate |
| 02/03/2011 | US20110028566 Compositions and products containing cycloaliphatic diol antimicrobial agents and methods of using the compositions and products |
| 01/26/2011 | CN201722170U Chimney tower used for separating sulfuric acid and sodium sulfate in sulfonation waste water |
| 01/26/2011 | CN101956070A Recovery method of molybdenum concentrates |
| 01/26/2011 | CN101955284A Method of treating cyclohexanone saponification waste alkali liquor |
| 01/26/2011 | CN101955195A Method for preparing zinc cyanide and jointly producing mixed sulfates from waste residues in Sodamide method |
| 01/19/2011 | CN201713328U Mannheim reacting furnace |
| 01/19/2011 | CN101948123A Technique for manufacturing anhydrous medicinal mirabilite |
| 01/19/2011 | CN101948122A Treatment method of crystalline material obtained through evaporation and concentration of vanadium oxide production wastewater |