| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 03/02/2011 | CN201753325U Chain plate drying device for sintered flue gas desulfurization gypsum |
| 03/01/2011 | US7897134 System and method for calcining gypsum |
| 03/01/2011 | CA2570278C Method and apparatus for drying wet bio-solids using excess heat recovered from cement manufacturing process equipment |
| 02/23/2011 | CN101979353A Fluorgypsum modifying method and process for producing other chemical products by using fluorgypsum |
| 02/16/2011 | CN101348340B Gypsum based gel material prepared from undisturbed industry by-product gypsum and preparation thereof |
| 02/10/2011 | WO2011016912A1 System and method for calcining gypsum |
| 02/10/2011 | US20110033351 System and method for calcining gypsum |
| 02/09/2011 | CN101575901B Process for producing thistle boards from phosphogypsum, desulfurization gypsum and natural gypsum |
| 02/01/2011 | CA2477709C High molecular weight additives for calcined gypsum and cementitious compositions |
| 01/26/2011 | CN201722294U Device for producing Alpha hemihydrates gypsum |
| 01/26/2011 | CN101959675A Process of manufacturing cement based armor panels |
| 01/26/2011 | CN101955328A Gypsum powder energy-saving environment-friendly horizontal rotary frying pan |
| 01/25/2011 | US7875114 Foamed slurry and building panel made therefrom |
| 01/19/2011 | EP1485330B1 High strength flooring compositions |
| 01/19/2011 | CN201713441U Energy-saving environment-friendly horizontal type rotating frying pan for gypsum powder |
| 01/04/2011 | CA2478323C High strength flooring compositions |
| 01/04/2011 | CA2440486C Polymer modified gypsum composition |
| 12/29/2010 | EP2265554A1 Method and device for calcinating phosphorous plaster |
| 12/29/2010 | CN201688692U Novel fluidized wind supply device of phosphogypsum decomposing and circulating fluidized bed device |
| 12/22/2010 | CN201678595U Gypsum powder calciner |
| 12/22/2010 | CN101423351B Novel plastering gypsum |
| 12/21/2010 | US7854608 Method and apparatus for heat treatment in a fluidized bed |
| 12/21/2010 | CA2478319C Sprayable machinable media |
| 12/15/2010 | CN201670802U Desulfurization gypsum feeding device |
| 12/15/2010 | CN101915714A Method for judging dewatering performance of different plasters |
| 12/01/2010 | CN201660565U Calcining equipment for preparing building gypsum plaster in laboratories |
| 12/01/2010 | CN201658941U Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum |
| 12/01/2010 | CN101898875A Reclaimed gypsum ceramic mold beta powder and preparation method thereof |
| 12/01/2010 | CN101134345B Method for continuously producing environment-protection light gypsum wall material by using industrial residue |
| 11/24/2010 | EP2253601A1 Accelerators for gypsum compositions with enhanced resistance to permanent deformation |
| 11/24/2010 | CN201648247U Equipment using desulfurized gypsum, phosphogypsum or citric acid gypsum to produce alpha-gypsum |
| 11/24/2010 | CN101891411A Waterproofing gypsum agent preparation method |
| 11/24/2010 | CN101890289A Process for flue gas desulfurization by using granulating water solution |
| 11/18/2010 | US20100288415 Gypsum Based Compositions |
| 11/17/2010 | CN101885589A Compound sulfate cement |
| 11/12/2010 | CA2701451A1 Compositions for the manufacture of gypsum boards, methods of manufacture thereof, and gypsum boards formed therefrom |
| 11/10/2010 | CN101883743A Activated carbon as mercury release control agent in gypsum calcination |
| 11/10/2010 | CN101880132A Environmental-friendly cement and preparation method thereof |
| 11/10/2010 | CN101879406A Dual-alkali flue gas desulfurization device and desulfurization method |
| 11/03/2010 | CN101094822B Foaming plaster |
| 10/28/2010 | US20100273916 Admixture for hydraulic binder |
| 10/27/2010 | CN201614351U 一种用于磷石膏改性沸腾炉余热利用一体化装置 A modification of phosphogypsum waste heat utilization for integrated device roaster |
| 10/26/2010 | US7819971 Method of using landplaster as a wallboard filler |
| 10/20/2010 | CN101868430A Wet-grinding gypsum with polycarboxylates |
| 10/19/2010 | US7815730 Siloxane polymerization in wallboard |
| 10/13/2010 | CN101857387A Desulfurized gypsum-high-calcium fly ash geopolymer cementing material and preparation method thereof |
| 10/06/2010 | CN201598239U 一种具有自动控制功能的炒料系统 Fry feed system having automatic control function |
| 10/06/2010 | CN101851075A Bottom layer brushing gypsum and application thereof |
| 09/30/2010 | WO2010109116A2 Cement composition for a self-leveling fluid screed, and self-leveling fluid screed thus produced |
| 09/30/2010 | US20100242806 Photocatalytically activated structural components composed of a matrix bound with a mineral binder, as well as method for production of the structural components |
| 09/29/2010 | CN101844885A Method for manufacturing regenerative gypsum powder by waste gypsum models |
| 09/29/2010 | CN101844884A Hydrophobic phosphogypsum, and preparation method and application thereof |
| 09/29/2010 | CN101844749A Method for producing concentrated sulfuric acid and co-producing industrial salt and gypsum by using phosphogypsum |
| 09/28/2010 | US7803853 Settable mixture containing lime, a cementitious composition and a polymer |
| 09/28/2010 | US7803296 Methods and systems for preparing gypsum slurry containing a cellulose ether |
| 09/28/2010 | US7803226 Siloxane polymerization in wallboard |
| 09/22/2010 | CN101837239A System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat |
| 09/15/2010 | CN101830656A Method for realizing energy-saving emission-reducing low-carbon circular economy by utilizing chemical energy instead of heat energy |
| 09/15/2010 | CN101830655A Energy-saving gypsum calcination system and process |
| 09/10/2010 | WO2010099563A1 Improved plasterboard jointing system |
| 09/10/2010 | CA2754259A1 Improved plasterboard jointing system |
| 09/08/2010 | CN101823851A Method for rapidly drying desulfuration gypsum by utilizing residual heat of heat-conducting oil furnace and special equipment thereof |
| 09/08/2010 | CN101823850A Method for preparing high-strength a gypsum powder |
| 09/08/2010 | CN101823750A Method for co-production of raw gypsum in preparation of Yengsu calcium chloride dihydrate by phosphogypsum |
| 09/01/2010 | CN101333086B Method for preparing alpha semi-hydrated gypsum pulp and plaster products by desulphurizing gypsum |
| 08/25/2010 | CN101811840A Anti-corrosion admixture for oceanic concrete |
| 08/18/2010 | EP2217543A1 Activated carbon as mercury release control agent in gypsum calcination |
| 08/18/2010 | CN201553688U Wet desulphurization gypsum proportioning device |
| 08/18/2010 | CN201553687U Gypsum rotary kiln provided with fume and dust purifying device |
| 08/18/2010 | CN201553686U Gypsum rotary kiln provided with residual-heat utilization device |
| 08/17/2010 | US7776150 Process and apparatus for handling synthetic gypsum |
| 08/17/2010 | CA2560543C Cementitious compositions that contain anhydrite and procedures for its manufacture |
| 08/17/2010 | CA2310749C Apparatus and process for cooling and de-steaming calcined stucco |
| 08/11/2010 | CN201545787U Alpha type semi-hydrated gypsum still kettle |
| 08/11/2010 | CN101798194A Four-step method process for controlling production of building plaster in industrial and fully automatic mode by using citric acid plaster |
| 08/11/2010 | CN101798193A Electrical heating method for chemical gypsum |
| 08/11/2010 | CN101372404B Method for preparing high-strength alpha type hemihydrate gypsum using desulphurized dihydrate gypsum |
| 08/11/2010 | CN101353233B Radiation protection cement and sulphuric acid production method |
| 08/11/2010 | CN101143456B Method for manufacturing papered gypsum board with high kalium sodium content ardealite and additive therefor |
| 08/11/2010 | CN101003422B New method for producing sulfuric acid and cement by using phosphogypsum |
| 08/10/2010 | US7771851 Gypsum wallboard made from gypsum-containing slurries having outstanding hydration rate characteristics comprising grindingalpha-hemihydrate to a particular particle size distribution range and having a particlular Blaine surface area |
| 08/05/2010 | US20100197182 Fire resistant building element and plaster therefor |
| 08/03/2010 | US7767019 Slurry includes water, hydraulic component including stucco and polycarboxylate dispersant; wallboard, panels |
| 08/03/2010 | CA2308552C Fluid spray apparatus and method for smooth surface gypsum fiberboard panels |
| 07/29/2010 | US20100186870 Mixtures and emulsions to reduce energy in gypsum wallboard manufacture |
| 07/28/2010 | EP2209749A1 Wet-grinding gypsum with polycarboxylates |
| 07/27/2010 | CA2366500C Tungsten carbide coatings and process for producing them |
| 07/22/2010 | DE202009002645U1 Zementspachtel-Trockenmischung Cement putty dry mix |
| 07/21/2010 | CN101781097A Airflow desulphurization gypsum calcination system |
| 07/21/2010 | CN101172795B Alpha type high-strength gypsum cementing agent |
| 07/20/2010 | CA2366295C Method and apparatus for continuously calcining gypsum |
| 07/15/2010 | US20100175591 Method for introducing waste and/or alternative fuels into a clinker production method and device for carrying out said method |
| 07/15/2010 | US20100175590 Snap-set, ready-mix joint compound |
| 07/14/2010 | CN101774773A Method for producing alpha-gypsum by using desulphurization gypsum or citric acid gypsum |
| 07/14/2010 | CN101774772A Composite gypsum material for construction |
| 07/13/2010 | US7754006 Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same |
| 07/06/2010 | US7748888 Apparatus for stabilizing plaster |
| 06/30/2010 | CN101348337B High-temperature calcination gypsum powder machine |
| 06/24/2010 | US20100154681 Method for manufacturing biomedical bone filler with concrete characteristic |
| 06/23/2010 | CN101746979A Circulatory dewatering system device for desulfurization gypsum in coal-fired power plant |