| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 02/14/2013 | US20130036948 Methods and compositions using calcium carbonate and stabilizer |
| 02/13/2013 | CN202730009U Gypsum calcination system |
| 02/06/2013 | CN202717719U 石膏煅烧窑 Gypsum calcining kiln |
| 02/05/2013 | US8366823 Fly ash based lightweight cementitious composition with high compressive strength and fast set |
| 01/31/2013 | US20130025504 Gypsum-containing product |
| 01/30/2013 | CN202705248U Coal-saving rotary kiln production line device for ardealite calcining |
| 01/30/2013 | CN202705247U Rotary kiln for calcining ardealite |
| 01/30/2013 | CN102898052A Blockage-prevention material lifting device |
| 01/30/2013 | CN102228783B Process for removing sulfur dioxide in smoke by using white mud and its apparatus |
| 01/24/2013 | US20130022533 Method of manufacturing gypsum for the production of a gypsum molded product from gypsum board waste |
| 01/24/2013 | DE102010034874B4 Mineralische Bindemittelzusammensetzung und diese enthaltende bauchemische Produkte Mineral binder composition containing them and construction chemicals |
| 01/23/2013 | CN102390941B Medical alpha-hemihydrate calcium sulfate artificial bone repairing material and preparation method thereof |
| 01/16/2013 | CN202666535U U-bar connecting device for smoke wet desulphurization gypsum dehydrator |
| 01/16/2013 | CN102875042A Desulfurized gypsum calcination apparatus |
| 01/16/2013 | CN102295420B Method for preparing alpha-semihydrated gypsum by using aqueous solution of alcohol as crystallization media |
| 01/09/2013 | CN202658084U Energy-saving type building gypsum drier |
| 01/09/2013 | CN102863165A Energy-saving calcining furnace for desulfurization gypsum |
| 01/09/2013 | CN102320763B Phosphogypsum purification and neutralization apparatus |
| 01/09/2013 | CN102173620B Method for modifying and producing building gypsum powder by utilizing wet fluorgypsum |
| 01/08/2013 | US8349073 Fast setting stucco and method of use |
| 01/03/2013 | US20130000521 Manufactured item for the building industry |
| 01/03/2013 | DE102011078531A1 Gips-haltige Baustoffmassen Gypsum-containing building materials |
| 01/02/2013 | CN102351447B Processing method for improving setting performance of desulfurized gypsum |
| 01/02/2013 | CN101330967B Aeration system and method |
| 01/01/2013 | US8343273 Method of modifying beta stucco using diethylene-triamine-pentaacetic acid |
| 12/26/2012 | CN202626043U Calcination production line of industrial by-product gypsum |
| 12/25/2012 | US8337612 Environment friendly composite construction materials |
| 12/06/2012 | US20120305162 Gypsum plaster board and a method for producing a gypsum plaster board |
| 12/05/2012 | CN102807334A Control system of natural gas for calcining desulfurized gypsum |
| 12/05/2012 | CN102093023B Non-fired brick and preparation method thereof |
| 11/28/2012 | CN102795796A Externally-calcined middle part high-efficiency gypsum calcining kiln |
| 11/28/2012 | CN102491661B Drying and calcining machine particularly suitable for ardealite |
| 11/28/2012 | CN102491660B Drying calcinatory especially suitable for synthetic gypsum |
| 11/14/2012 | CN102775082A Production method of white cement and sulfuric acid |
| 11/14/2012 | CN102775081A Gypsum calcination system |
| 11/07/2012 | CN202519165U Alpha-type vertical steam kettle of semi-hydrated gypsum |
| 11/07/2012 | CN102764580A White mud/ carbide slag-gypsum wet flue gas desulfurization device and method |
| 11/07/2012 | CN101811840B Anti-corrosion admixture for oceanic concrete |
| 11/07/2012 | CN101432240B Wax emulsions for gypsum products |
| 11/06/2012 | US8303709 Gypsum-containing product |
| 10/31/2012 | EP2516343A2 Method of manufacturing water-resistant gypsum articles and articles formed thereby |
| 10/31/2012 | CN202508987U Desulfurized gypsum discharger and quantitive charging device for discharging desulfurized gypsum |
| 10/31/2012 | CN102757191A High-strength gypsum for dentistry |
| 10/31/2012 | CN102755827A Flue gas desulfurization process and device adopting acetylene sludge-gypsum method |
| 10/24/2012 | CN202499812U Powder frying and dust removing integrated device for building gypsum powder |
| 10/24/2012 | CN102745926A Modified phosphogypsum and preparation method thereof |
| 10/24/2012 | CN102745925A Rotary kiln for ardealite calcination |
| 10/24/2012 | CN102745924A Phosphogypsum-modifying method capable of shortening coagulating time of phosphogypsum-based cement concrete |
| 10/24/2012 | CN102745923A Process for producing alpha type semi-hydrated gypsum by using industrial by-product gypsum |
| 10/24/2012 | CN102745922A Calcining process of gypsum |
| 10/24/2012 | CN102745921A Hemihydrate gypsum processing system |
| 10/23/2012 | US8293003 Method of making a fiber cement board with improved properties and the product |
| 10/18/2012 | US20120263963 Wax emulsion for use in building products |
| 10/17/2012 | EP2511247A1 Method of manufacturing gypsum for the production of a gypsum molded product from gypsum board waste |
| 10/17/2012 | CN202492463U Production equipment for strong-strength alpha-type flue gas desulfurization semi-hydrated gypsum |
| 10/17/2012 | CN102731001A Phosphogypsum composite pretreatment technique |
| 10/17/2012 | CN102731000A Method for producing building gesso by using semi-hydrated phosphogypsum and dihydrate phosphogypsum |
| 10/17/2012 | CN102730999A Two-stage fluidized bed device for producing semi-hydrated gypsum by using heat conduction oil to calcine gypsum |
| 10/16/2012 | US8287640 Stable foamed cement slurry compositions and methods for making and using same |
| 10/10/2012 | CN102718423A Preparation method of low-grade activated coal ash composite material |
| 10/10/2012 | CN101979353B Fluorgypsum modifying method and process for producing other chemical products by using fluorgypsum |
| 10/09/2012 | US8282731 Calcium sulfate hemihydrate treatment process |
| 10/03/2012 | CN102701620A Method utilizing microwave technique to induce modified ardealite |
| 10/03/2012 | CN102701619A Technology making use of waste phosphogypsum to produce gypsum block |
| 10/03/2012 | CN102701618A Method for using calcium sulfite type desulfurization gypsum to produce high-strength environmental-friendly type plastering gypsum |
| 10/03/2012 | CN102701617A Calcination production line and calcination method for industrial by-product gypsum |
| 09/27/2012 | WO2012127090A1 Method for stabilizing phosphogypsum to reduce natural radionuclide emissions |
| 09/26/2012 | CN202450001U Equipment using chemical by-product gypsum to produce building gypsum powder |
| 09/26/2012 | CN102690067A Highly active cement clinker and highly active cement |
| 09/25/2012 | US8273174 Method of making a fiber cement board with improved properties and the product |
| 09/20/2012 | US20120237756 Gypsum slurries and boards and methods of making the same |
| 09/19/2012 | CN102674726A Water-resistance and high-strength desulfurized gypsum powder |
| 09/18/2012 | US8268073 System and method for making cement and cement derived therefrom |
| 09/12/2012 | CN102666424A Method of manufacturing water-resistant gypsum articles and articles formed thereby |
| 09/12/2012 | CN102659375A Production method of super-strong dental model gypsum powder |
| 09/12/2012 | CN102659331A Steam pressing production process for alpha-hemihydrate gypsum |
| 09/12/2012 | CN102659330A Desulfurization gypsum recycling method |
| 09/05/2012 | CN202415382U Three-station electric slurry distribution box |
| 09/05/2012 | CN101915714B Method for judging dewatering performance of different plasters |
| 09/05/2012 | CN101506120B A method of inertising the impurities in phosphogypsum |
| 09/04/2012 | US8257489 Slurries and methods of making light weight gypsum board |
| 08/28/2012 | US8252110 Lightweight plasterboard and plaster slurry composition used for its manufacture |
| 08/28/2012 | US8251695 Device for drying and/or calcining gypsum |
| 08/22/2012 | EP1766308B1 Apparatus and process for cooling and de-steaming calcined stucco |
| 08/22/2012 | CN202390324U Fluidized bed type gypsum calcination device |
| 08/15/2012 | CN202379896U Gypsum powder calcination system |
| 08/15/2012 | CN102633453A Neutral modifying agent for fluorgypsum and method for utilizing neutral modifying agent to modify fluorgypsum |
| 08/15/2012 | CN102633450A Composite material with anion biomimetic function and production method thereof |
| 08/08/2012 | CN202369511U Simple expansion prevention device for calcined gypsum cooler |
| 08/08/2012 | CN202366618U Packless superficial spray type calcium method flue gas desulfurization and purification system |
| 08/08/2012 | CN101746979B Circulatory dewatering system device for desulfurization gypsum in coal-fired power plant |
| 07/25/2012 | CN202346912U Desulfurization gypsum mixing mechanism |
| 07/25/2012 | CN202346911U Alpha-type hemihydrate gypsum reaction kettle |
| 07/25/2012 | CN102603219A Process for preparing high-activity semi-hydrated gypsum cementing material and gypsum product by aid of phosphorous gypsum |
| 07/25/2012 | CN101844885B Method for manufacturing regenerative gypsum powder by waste gypsum models |
| 07/25/2012 | CN101774773B Method for producing alpha-gypsum by using desulphurization gypsum or citric acid gypsum |
| 07/24/2012 | US8227039 High amylose starch wallboard and method of making same |
| 07/24/2012 | US8226766 Set accelerator for gypsum hydration |
| 07/24/2012 | US8226762 Cement composition for a self-leveling fluid screed, and self-leveling fluid screed thus produced |
| 07/18/2012 | CN102584054A Novel process for producing composite gypsum cement |