| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 07/18/2012 | CN102584053A Preparation method of desulfurized high-strength alpha-type semi-hydrated gypsum |
| 07/18/2012 | CN102584052A Method for producing alpha high-strength gypsum by utilizing citric acid waste residues |
| 07/18/2012 | CN102584051A Method for producing mixed gypsum powder by utilizing citric acid waste residue one-step process |
| 07/18/2012 | CN102584050A Method and equipment for producing building gypsum powder by using gypsum as chemical by-product |
| 07/18/2012 | CN102584049A Alpha-type hemihydrate gypsum reaction device |
| 07/18/2012 | CN102584048A Equipment for producing alpha-type hemihydrate gypsum |
| 07/17/2012 | US8221542 Non-cement fire door core |
| 07/11/2012 | CN202322654U 一种磷石膏干燥煅烧机加热机构 One kind of calcined gypsum drying machine heating mechanism |
| 07/11/2012 | CN202322653U 一种脱硫石膏干燥煅烧机加热气管结构 One kind of calcined gypsum drying machine heating pipe structure |
| 07/11/2012 | CN202322652U 一种脱硫石膏干燥煅烧机监控机构 One kind of calcined gypsum drying machine monitoring agency |
| 07/11/2012 | CN202322651U 一种磷石膏干燥煅烧机进料机构 One kind of calcined gypsum drying machine feeding mechanism |
| 07/11/2012 | CN202322650U 一种半水石膏加工系统 A semi-hydrated gypsum processing system |
| 07/11/2012 | CN202315515U 一种烟气湿法脱硫石膏转盘脱水机 One kind of wet flue gas desulfurization gypsum dewatering machine turntable |
| 07/11/2012 | CN102557502A Coal ash solidifying agent for coal ash building materials |
| 07/10/2012 | US8216360 Gypsum building boards |
| 07/05/2012 | US20120167805 Method of improving gypsum board strength |
| 07/04/2012 | CN202297401U 副产石膏专用立式转晶器 Byproduct gypsum dedicated vertical turn crystallizer |
| 07/04/2012 | CN202297400U 一种脱硫石膏烘干装置 One kind of gypsum drying device |
| 07/04/2012 | CN202297399U 一种熟石膏粉的改性设备 One kind of plaster powder modified equipment |
| 07/04/2012 | CN102531263A Method for treating saponified wastewater generated in production process of epoxy compound |
| 07/04/2012 | CN102530884A Method for preparing sulfuric acid and cement with fluorine gypsum |
| 07/04/2012 | CN102020251B Improved production process for preparing sulfuric acid and cement from gypsum |
| 07/04/2012 | CN101851075B Bottom layer brushing gypsum and application thereof |
| 07/04/2012 | CN101679115B Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| 07/04/2012 | CN101475329B Modified phosphogypsum powder and product thereof |
| 07/03/2012 | CA2685984C Process for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| 06/28/2012 | US20120160133 Set accelerator for gypsum hydration |
| 06/27/2012 | EP2468802A1 Method of Producing a Vinyl Chloride Resin Formed Article |
| 06/27/2012 | CN102515682A Method for preparing plastering anhydrite by using well and rock salt manufacturing brine anhydrite |
| 06/27/2012 | CN102515595A Composite cementitious material of desulfurated waste residue and mortar prepared from same |
| 06/27/2012 | CN102515594A Gypsum powder calcination technology |
| 06/27/2012 | CN102515593A Method for producing semi-hydrated gypsum by using salt solution |
| 06/27/2012 | CN102515592A Hemihydrate gypsum production method |
| 06/27/2012 | CN102515114A High-value and high-efficiency titanium white waste acid utilization method |
| 06/20/2012 | CN102503194A Special composite cementitious material for high-grade concrete of bridge expansion joints and thin-shell structures |
| 06/20/2012 | CN102500223A Equipment for performing wet-method flue gas desulfurization and producing gypsum by discarded carbide slag |
| 06/13/2012 | CN102491662A Natural anhydrous gypsum-made bonding material |
| 06/13/2012 | CN102491661A Drying and calcining machine particularly suitable for ardealite |
| 06/13/2012 | CN102491660A Drying calcinatory especially suitable for synthetic gypsum |
| 06/13/2012 | CN102491659A Fluidized bed type gypsum calcining device |
| 06/13/2012 | CN102489143A Flue-gas desulphurization system and flue-gas desulphurization method |
| 06/12/2012 | US8197952 High starch light weight gypsum wallboard |
| 06/05/2012 | CA2519961C Calcium sulphate-based compositions and methods of making same |
| 05/30/2012 | CN202246449U Gypsum powder multi-chamber fluidizing bed calcining furnace |
| 05/30/2012 | CN202246448U Integrated drying, separation and ball milling rotary calcining kiln |
| 05/30/2012 | CN101798194B Four-step method process for controlling production of building plaster in industrial and fully automatic mode by using citric acid plaster |
| 05/29/2012 | US8187374 Process for manufacturing clinker with controlled CO2 emission |
| 05/23/2012 | EP1572828B1 Water-resistant additives for gypsum wood fiber products |
| 05/23/2012 | CN202224051U Double-alkali desulfurizer with exterior tower circulation and independent oxidation |
| 05/23/2012 | CN102464459A 一种脱硫石膏中亚硫酸钙的快速氧化剂及其应用 One kind of calcium sulfate gypsum fast oxidizer Central Asia and its application |
| 05/22/2012 | US8182605 Cementitious veneer and laminate material incorporating reinforcing fibers |
| 05/09/2012 | CN202212100U Flushing and flow-guiding device for gypsum filter cake |
| 05/09/2012 | CN101781097B Airflow desulphurization gypsum calcination system |
| 05/03/2012 | WO2012056162A1 Surface deactivator that can be removed when dry |
| 05/03/2012 | US20120103233 Building segment, in particular of board shape and the method of manufacturing thereof |
| 05/02/2012 | CN102432211A Method for preparing desulfurized gypsum |
| 05/02/2012 | CN102430276A Wet flue gas desulfurization gypsum dehydrator |
| 05/01/2012 | US8167999 Three-dimensional printing material system with improved color, article performance, and ease of use |
| 05/01/2012 | CA2662895C Process for manufacturing ultra low consistency .alpha.- and .beta.- blend stucco |
| 04/26/2012 | WO2012054322A1 Method for producing wet gypsum accelerator |
| 04/26/2012 | WO2012054009A1 Method for preparing a hardened calcium sulfate dihydrate block and use thereof |
| 04/26/2012 | CA2816390A1 Method for producing wet gypsum accelerator |
| 04/25/2012 | EP1991509B1 Method for stabilising metastable soluble anhydrite iii, method for producing a hydraulic binder based thereon, the obtained hydraulic binder, the uses thereof and an industrial plant for carrying out said method |
| 04/19/2012 | US20120090508 Method for producing wet gypsum accelerator |
| 03/28/2012 | CN102390942A Method for producing building powdered gypsum by using phosphogypsum |
| 03/28/2012 | CN102390941A Medical alpha-hemihydrate calcium sulfate artificial bone repairing material and preparation method thereof |
| 03/27/2012 | US8141501 Method and facility for disposing wet sludge |
| 03/21/2012 | CN102381848A Efficient direct-heating gypsum calcination rotary kiln |
| 03/21/2012 | CN101830655B Energy-saving gypsum calcination system and process |
| 03/15/2012 | US20120060723 Process and device for stabilising, cooling and dehumidifying gypsum plaster |
| 03/15/2012 | DE102010048339A1 Wässrige Gips-Zement-Mischung und ihre Verwendung Aqueous gypsum-cement mixture and their use |
| 03/08/2012 | WO2012028251A1 Method and device for stabilizing, cooling, and drying plaster of paris |
| 03/08/2012 | US20120058356 Gypsum Based Formulations |
| 03/08/2012 | CA2807961A1 Process and device for stabilising, cooling and dehumidifying gypsum plaster |
| 03/07/2012 | CN202157014U 一种高效直热式石膏煅烧回转窑 An efficient direct thermal gypsum calcination kiln |
| 03/07/2012 | CN101671135B Curing method of industrial waste gypsum |
| 03/06/2012 | US8128903 Method of treating a precipitate comprising iron (II) sulfate monohydrate, a plant, granular material and its uses |
| 03/06/2012 | CA2484045C Ettringite binder for dense mortar, comprising calcium sulphates and a mineral compound of calcium aluminates |
| 02/29/2012 | CN101693614B Ceramic-like coating |
| 02/23/2012 | DE102010034874A1 Mineral binder composition, useful in chemical building e.g. tile adhesive, comprises a pozzolanic or latent hydraulic binding material, a calcium sulfoaluminate, and a calcium sulfate hemihydrate and/or calcium sulfate anhydrite |
| 02/22/2012 | EP1837315B1 Plant for hydrothermally treating and drying plaster stone |
| 02/16/2012 | WO2012020607A1 Gypsum waste recycling system |
| 02/16/2012 | WO2012020152A1 Ettringite- and gypsum-based binder with high fire-resistance and method for the production thereof |
| 02/16/2012 | DE102010033988A1 Verfahren und Vorrichtung zur Stabilisierung, Kühlung und Entfeuchtung von Stuckgips Method and apparatus for stabilizing, cooling and dehumidification of plaster of Paris |
| 02/15/2012 | EP2418184A2 Method for manufacturing alpha-calcium sulphate hemi-hydrate |
| 02/15/2012 | CN102351448A Modification and innocuous treatment method of phosphogypsum |
| 02/15/2012 | CN102351447A Processing method for improving setting performance of desulfurized gypsum |
| 02/15/2012 | CN102351155A Alkali manufacturing technology for combined production of sulfuric acid and cement |
| 02/08/2012 | CN202139168U 脱硫石膏烘干煅烧设备 Calcined gypsum drying equipment |
| 02/08/2012 | CN102344260A Composition for drying gypsum and preparation method of gypsum mold |
| 02/01/2012 | CN202131228U 一种煅烧β型陶瓷模具石膏的设备 A β-type ceramic mold equipment calcined gypsum |
| 01/24/2012 | US8101016 Precast concrete component material mixture and method of precasting |
| 01/18/2012 | CN102320763A Phosphogypsum purification and neutralization apparatus |
| 01/18/2012 | CN101412594B Method for preparing calcined phosphogypsum from industrial waste phosphogypsum |
| 01/11/2012 | EP2404004A1 Improved plasterboard jointing system |
| 01/11/2012 | CN102311254A Method for preparing stucco gypsum from sintering desulfurization gypsum |
| 01/11/2012 | CN102309919A Combined treatment method for waste gas containing sulfur compounds |
| 01/11/2012 | CN101716454B Process for desulphurizing and dedusting catalytic cracking regenerated smoke |
| 01/11/2012 | CN101318631B Method and apparatus for decomposing phosphogypsum to produce sulphuric acid, generating electricity power and cement with quiescent state reduction |
| 01/03/2012 | US8088842 Solubilized defoamers for cementitious compositions |