Patents
Patents for C01B 17 - Sulfur; Compounds thereof (11,743)
06/2011
06/28/2011US7968076 Reacting sodium formate, sulfur dioxide, and an alkaline sodium compound in aqueous methanolic solution, isolating sodium dithionite from the mother liquor, separating the methanol, concentrating and recycling the sodium formate
06/28/2011US7968075 Multi-element metal chalcogenide and method for preparing the same
06/23/2011US20110150737 Flame synthesis of metal salt nanoparticles, in particular calcium and phosphate comprising nanoparticles
06/23/2011US20110147652 Systems and Methods for Generating Sulfuric Acid
06/23/2011US20110147274 Regeneration of alkali metal reagent
06/22/2011EP1681263B1 Method for purifying lithium sulfide
06/22/2011CN102101690A Process for preparing barium chloride and calcium chloride by utilizing chlor-alkali waste salt sludge
06/22/2011CN102101004A Method for recovering magnesium oxide and byproduct sulfur dioxide by using indirect heating rotary roasting furnace
06/22/2011CN101549295B Preparation method of sulfur catalyst recycled from coke oven gas
06/22/2011CN101274204B Absorbing agent for removing and recovering sulfur dioxide from gaseous mixture
06/21/2011US7964166 Process for removing contaminants from gas streams
06/21/2011US7964111 Solid hydrogen source compounds and method for generating hydrogen
06/21/2011CA2500344C Systems and methods for generating polysulfides
06/21/2011CA2461957C Use of a tio2 composition as catalyst for hydrolyzing cos and/or hcn in a gaseous mixture
06/16/2011WO2011072046A1 Fractionation of hydrogen sulfide rich sour gas and methods of use
06/16/2011US20110142747 Three phase sulfur separation system with interface control
06/16/2011CA2780902A1 Fractionation of hydrogen sulfide rich sour gas and methods of use
06/15/2011CN201864563U Repurification device of finished product sulfuric acid
06/15/2011CN201864562U Device for manufacturing sulfuric acid by sulfur foams produced by desulphurizing ferric oxide powder turbid liquid
06/15/2011CN201862296U Sulfur residue sedimentation tank
06/15/2011CN102095312A Method, process and equipment for recycling low-temperature afterheat generated in roasting process of producing sulfuric acid from iron pyrite
06/15/2011CN102093197A Method for preparing aromatic dimethyl chloride
06/15/2011CN102092906A Treatment and resource-utilizing technology of tert-butyl peroxy benzoate production wastewater
06/15/2011CN102092905A Process for treating and recycling industrial wastewater of peroxide-2-ethylhexoic acid tertiary butyl ester
06/15/2011CN102092903A Process for treating and recycling di-tertiary-butyl peroxide production waste water
06/15/2011CN102092902A Treatment and reclamation process of production waste water of tert-amyl peroxypivalate
06/15/2011CN102092733A Method for preparing anhydrous metasilicate and elementary-substance sulphur from waste slag of treated sulfuric-acid burned slag
06/15/2011CN102092732A Method for preparing water glass and precipitated silica from treatment waste residues of sulfuric acid residues
06/15/2011CN102092731A Method for preparing water glass and active silica by using treated waste residue of pyrite cinder
06/15/2011CN102092730A Method for preparing water glass and silica sol from waste residues produced by treatment of pyrite cinders
06/15/2011CN102092729A Method for preparing sodium silicate and fine-pored spherical silica gel from waste slag of treated sulfuric-acid burned slag
06/15/2011CN102092728A Method for preparing water glass and silicic acid from waste residues produced by treatment of pyrite cinders
06/15/2011CN102092727A Method for preparing potash water glass adhesive and elemental sulfur with managed waste residue of sulfuric acid residue
06/15/2011CN102092726A Method for preparing glass raw material and elementary sulfur with treatment waste residues of roasted sulfate slag
06/15/2011CN102092689A Method for cyclically producing sulfuric acids by utilizing tail gases produced by sulfuric acid production process
06/15/2011CN102092688A Technological process for producing acid with sulfur-containing gas
06/15/2011CN102092687A Method for producing zinc hydrosulfite by using sodium hydrosulfite filtration residues
06/15/2011CN102092686A Sf6 gas recycling device
06/15/2011CN102091504A Chemical method for gathering, fixing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitric oxide
06/15/2011CN102091503A Chemical method for trapping, fixing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitrogen oxides
06/15/2011CN101830443B Process for purifying sulfuric acid phase and hydriodic acid phase in iodine-sulfur cycle
06/15/2011CN101468794B Method for sustaining low concentration sulfuric dioxide acid making water balance in high altitude area
06/15/2011CN101423199B Combined internal thermal cooler sulfur recovery reactor
06/14/2011US7959891 Process and apparatus for producing inorganic fullerene-like nanoparticles
06/09/2011WO2011067046A1 Method for reprocessing waste gases containing sulphur
06/09/2011WO2011067045A1 Method for reprocessing sulphur compounds
06/09/2011WO2011067044A1 Device and method for the combustion of sulfur and sulfuric compounds
06/09/2011WO2011067043A1 Method for reprocessing gases containing hydrogen sulphide
06/09/2011WO2011067042A1 Method and device for producing sulfuric acid
06/08/2011EP2330075A1 Method for making sulphuric acid
06/08/2011CN102088124A High-purity polymetallic-element solid mixed salt and preparation method and application thereof
06/08/2011CN102086417A Method for purifying marsh gas and recovering elemental sulfur and carbon dioxide
06/08/2011CN101343047B Improved preparation technique for preparing sulphuric acid and cement with gypsum
06/08/2011CN101193692B Device and method for operating a device for continuously recovering a sulphur from an H2S-containing gas
06/08/2011CN101066754B SF6 gas recovering and purifying process and tank
06/08/2011CN101045531B Operation method for contact type sulphuric acid device
06/07/2011US7955586 Synthesis of I-III-V12 nanoparticles and fabrication of polycrystalline absorber layers
06/03/2011WO2011066205A1 Aqueous process for producing crystalline copper chalcogenide nanoparticles, the nanoparticles so-produced, and inks and coated substrates incorporating the nanoparticles
06/03/2011WO2011066204A1 Syntheses of quaternary chalcogenides in cesium, rubidium, barium and lanthanum containing fluxes
06/03/2011WO2011064468A1 Method for producing hydrogen from regenerable non-stoichiometric metallic sulfides
06/03/2011WO2010108912A3 Self-organising thermoelectric materials
06/02/2011US20110129410 Method for recycling used lead acid batteries electrolytic solution
06/02/2011US20110127932 Blue light emitting semiconductor nanocrystals and devices
06/01/2011CN201850140U Grooved tube type acid distributor
06/01/2011CN201848168U Sulfur hexafluoride gas filtering and purifying device
06/01/2011CN102083517A Sulphur granulation apparatus and process
06/01/2011CN102079532A Improved ammonium sulfate decomposition method
06/01/2011CN102079512A Process for recovering sulfuric acid and sulfate from waste acid generated in preparation of titanium dioxide by using sulfuric acid method
06/01/2011CN102079511A Acid making system suitable for high-concentration sulfur dioxide-containing flue gas
06/01/2011CN102079510A Brimstone furnace and sulfur trioxide preparation system
06/01/2011CN102079509A Automatic control of sulfur tetrafluoride production process
06/01/2011CN101343045B Method for continuous preparation of sulfur with high heat-stability and insolubility
06/01/2011CN101337660B Method for producing insoluble sulfur
05/2011
05/31/2011US7951353 Flow control method and apparatus for a continuous multiple zone mass transfer
05/25/2011CN201842644U Alloy pipe chase type acid trap
05/25/2011CN201842643U Steam cooling tower
05/25/2011CN201842642U Sulfur dioxide reaction tower
05/25/2011CN102070128A Process for efficiently recovering afterheat generated in the process of producing sulfuric acid from pyritic
05/25/2011CN102070127A Method for producing insoluble sulfur
05/25/2011CN102068967A Supported polypropylene imine material and preparation method and application thereof
05/25/2011CN102068882A Method and process for separating water content from SO2 gas in the sulfuric acid producing process
05/25/2011CN101717075B Temperature reducing device for chlorosultonic acid
05/25/2011CN101456541B Selecting and packing method of catalyst for sulphur preparation
05/25/2011CN101054166B Method of producing sulfur from low-grade pyrites by two-section fluid bed
05/19/2011WO2011060025A1 Process for removing contaminants from gas streams
05/19/2011CA2780240A1 Process for removing contaminants from gas streams
05/18/2011CN201832614U Automatic sulfur discharging device for continuous sulfur melting kettle
05/18/2011CN201832436U Sulfur dioxide recovery device
05/18/2011CN102065983A Hydrogen sulfide conversion to hydrogen
05/18/2011CN102060323A Method for preparing mixture of lead sulfide and silver sulfide from waste residue obtained by producing lithopone
05/18/2011CN102060272A Refrigeration method and technique in sulfuric acid production process
05/18/2011CN102059039A Fume purification equipment and preparation method of sulfuric acid
05/18/2011CN102059038A Treatment process and device of waste gas containing hydrogen sulfide and carbon dioxide
05/18/2011CN101624204B Four-great circulation method formed by waste gypsum mud and chlor-alkali industry
05/18/2011CN101186282B Method for reclaiming waste sulfuric acid in hard anode oxidation process
05/12/2011US20110107527 Cleaning method
05/11/2011EP1155090B1 Improved sprayable fireproofing composition
05/11/2011CN102050430A Method for preparing high concentration sulfuric acid by cracking low concentration sulfuric acid
05/11/2011CN102049185A Method for treatment of refinery high-SO2-concentration and low-oxygen-content flue gas
05/11/2011CN102049179A Method for preparing supported iron oxide series desulfurizing agent
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