| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 12/03/2008 | CN101314462A Reclamation comprehensive utilization method for desulfurized gypsum |
| 11/27/2008 | WO2008141627A1 Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| 11/26/2008 | CN201154944Y Rapid calcining machine for construction gypsum powder |
| 11/26/2008 | CN101312925A Modifiers for gypsum slurries and method of using them |
| 11/19/2008 | EP1991509A2 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 |
| 11/19/2008 | CN101306925A Process for preparing modified ardealite by water-free calcining |
| 11/19/2008 | CN100434381C Semi-hydrated gypsum calcination system and preparation process thereof |
| 11/19/2008 | CN100434380C Technique for airflow drying, and calcining desulfurized gypsum |
| 11/12/2008 | CN101302029A Method for preparing alpha-hemihydrate gypsum with desulfurated gypsum |
| 11/12/2008 | CN101302003A Production process of preparing cogeneration concrete from flur-gypsum |
| 11/12/2008 | CN101302002A Method for producing sulfuric acid and cement clinker using gypsum |
| 11/12/2008 | CN101302001A Production method of producing sulfuric acid cogeneration concrete using flur-gypsum |
| 11/06/2008 | WO2008132497A1 Gypsum based compositions |
| 11/06/2008 | CA2685768A1 Gypsum based compositions |
| 11/05/2008 | CN100430453C Additives for water-resistant gypsum products |
| 10/30/2008 | US20080264303 Solid surface product containing oriented reflective particles and method of making same |
| 10/29/2008 | CN101293749A Method for preparing desulfurization gypsum beta-powder |
| 10/29/2008 | CN100429171C Method and device for producing cement |
| 10/23/2008 | US20080257222 Cementitious Veneer and Laminate Material |
| 10/21/2008 | CA2412014C Polymer modified gypsum membrane and uses therefor |
| 10/15/2008 | CN100425560C Continuous production method and apparatus for alpha semi-water gypsum |
| 10/14/2008 | US7434332 Method and apparatus for drying wet bio-solids using excess heat from a cement clinker cooler |
| 10/09/2008 | WO2008121026A1 Method for producing a water resistant and high-strength environmentally friendly gypsum binder |
| 10/08/2008 | CN100424028C Method of producing architectural decorative material and wall bady material using phosphogypsum |
| 10/08/2008 | CN100424026C Method for combined production of gypsum, active carbon, and copperas by using waste sulfuric acid and carbide slag |
| 10/01/2008 | EP1973858A2 Method for plaster production and plaster product obtained by said method |
| 09/25/2008 | WO2008115929A1 Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same |
| 09/25/2008 | US20080229981 Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same |
| 09/25/2008 | CA2678947A1 Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same |
| 09/24/2008 | CN101272993A Siloxane polymerization in wallboard |
| 09/24/2008 | CN101269922A Fine purification and energy-saving dewatering process for phosphogypsum |
| 09/17/2008 | CN101265043A Method for producing building gypsum from modified phosphorus gypsum |
| 09/17/2008 | CN101265042A Technique for preparing desulfurized gypsum by two-step process |
| 09/16/2008 | US7425236 Gypsum-containing board and tile, and method for producing same |
| 09/10/2008 | EP1158070B1 Tungsten carbide coatings and method for producing the same |
| 09/10/2008 | CN101259992A Technique for preparing alpha-semi-hydrated gypsum from chemical gypsum |
| 09/04/2008 | US20080210136 Drier material containing flue gas desulfuration and/or natural or processed gypsum; ready mix filling and finishing preparations providing support and workability |
| 09/03/2008 | CN101255024A Method for producing architectural gypsum by lemon acid gypsum |
| 09/03/2008 | CN100415665C Comprehensive utilization method of titanium white waste acid |
| 09/03/2008 | CN100415639C Process for reductive decomposition of phosphogypsum by sulfur coal |
| 08/27/2008 | CN101250038A Gypsum-based building adhesive (bonding gypsum) |
| 08/20/2008 | CN101248022A Improved gypsum-containing products containing alpha-hemihydrate |
| 08/20/2008 | CN101244811A Method for improving SO2 concentration in acid making technique with decomposition of calcium sulphate |
| 08/19/2008 | US7413603 Pumpable, flowable slurry including alpha-calcined calcium sulfate hemihydrate anchored in pores of host particles, alpha-calcined calcium sulfate hemihydrate, a silicone compound (especially low molecular weight hydrogen modified siloxane), magnesium oxide, and water |
| 08/12/2008 | US7410538 Comprises polysiloxane, water-soluble or water-dispersible binder, and carrier particle |
| 08/07/2008 | WO2007018705A3 Siloxane polymerization in wallboard |
| 08/07/2008 | US20080187711 Three-Dimensional Printing Material System With Improved Color, Article Performance, and Ease of Use |
| 08/06/2008 | CN101234858A Modification method for phosphogypsum and application thereof |
| 08/06/2008 | CN101234857A Method for drying granular phosphogypsum by using sulfuric acid tail gas |
| 08/05/2008 | US7407545 Cementitious veneer and laminate material |
| 07/31/2008 | WO2008091508A1 Gypsum wallboard containing acoustical tile |
| 07/31/2008 | WO2008062430A3 A method of inertising the impurities in phosphogypsum |
| 07/31/2008 | WO2007127030A3 Method of water dispersing pregelatinized starch in making gypsum products |
| 07/31/2008 | US20080178769 consistent performance, minimizing mixing complexity and reducing required inventory of bulky bags of differently formulated cementitious materials |
| 07/30/2008 | EP1948354A1 Aeration system and method |
| 07/30/2008 | CN201092561Y Device for on-line detection and treatment of deleterious materials during flur-gypsum utilization process |
| 07/30/2008 | CN101229964A Gypsum dehydration method for smoke-gas wet desulfurization |
| 07/29/2008 | US7404917 Method and system for generating foam for the manufacture of gypsum products |
| 07/24/2008 | WO2008088520A2 Gypsum compositions with naphthalene sulfonate and modifiers |
| 07/24/2008 | US20080176053 Gypsum Wallboard Containing Acoustical Tile |
| 07/23/2008 | CN201089746Y Device for calcining gypsum in tableland |
| 07/23/2008 | CN101224955A Building gypsum powder quick calcining process and equipment thereof |
| 07/22/2008 | US7402205 Mixture containing hydraulic lime and plaster; molding |
| 07/10/2008 | WO2007127034A3 Wax emulsions for gypsum products |
| 07/09/2008 | CN101215919A Formaldehyde-removing antibiotic plaster board and method for making same |
| 07/09/2008 | CN101215113A Method for producing cement retarder by carbide slag desulfurization |
| 07/09/2008 | CN101215112A Phase-change energy-storage gypsum plate and preparation method thereof |
| 07/03/2008 | US20080156225 Additive capable of undergoing shear thinning in response to the application of energy and recovering viscosity in the absence of an application of energy and an additive that does not undergo shear thinning when used alone in response to the application of energy; reduce the yield stress |
| 06/26/2008 | WO2008074137A1 Calcium sulfate hemihydrate treatment process |
| 06/26/2008 | WO2007024420A8 Improved gypsum-containing products containing alpha-hemihydrate |
| 06/26/2008 | US20080152559 Gypsum anhydrite fillers and process for making same |
| 06/26/2008 | US20080148998 exposing beta calcium sulfate hemihydrate to steam at a pressure above atmospheric pressure to convert hemihydrate to calcium sulfate anhydrite and the water demand of the beta calcium sulfate hemihydrate is reduced by at least 3% |
| 06/26/2008 | US20080148997 Gypsum compositions with naphthalene sulfonate and modifiers |
| 06/26/2008 | US20080148996 including forming calcium sulfate dihydrate (CaSO4.2H2O) into a briquette, calcining the briquette to transform the calcium sulfate dihydrate to calcium sulfate hemihydrate [alpha-type], drying and grinding |
| 06/26/2008 | CA2670738A1 Calcium sulfate hemihydrate treatment process |
| 06/25/2008 | CN101205124A Gypsum calcining system and calcining method |
| 06/25/2008 | CN100396636C Method for preparing building gesso by ardealite |
| 06/25/2008 | CN100396599C Method for producing phosphorous acid and gypsum using hydrochloric acid method |
| 06/19/2008 | US20080141909 allows the slurry to be prepared economically in unheated plants during colder weather; predispersing a dedusting agent in water; prevents clogging of the dry additive system when soft solid dedusting agents are used |
| 06/19/2008 | US20080141906 reaches high compression resistance values, of the order of 110 to 138 Kg/cm; can be used like constructive structural materials |
| 06/18/2008 | CN201074208Y Circulating fluidized bed type roaster |
| 06/12/2008 | US20080135072 Method and apparatus for stabilizing plaster |
| 06/11/2008 | EP1928803A2 Fiberboard with improved water resistance |
| 06/11/2008 | EP1928800A2 Improved gypsum-containing products containing alpha-hemihydrate |
| 06/11/2008 | CN101195524A Technique for producing building gypsum by using salt manufacturing by-production |
| 05/28/2008 | CN101189195A Methods and systems for preparing heat resistant accelerant slurry and adding the accelerant slurry to a mixed aqueous dispersion of calcined gypsum |
| 05/28/2008 | CN101186454A Energy-saving drying production method for gypsum |
| 05/21/2008 | CN101184704A Wet gypsum accelerator and methods, composition, and product relating thereto |
| 05/21/2008 | CN101184703A Methods of and systems for adding a high viscosity gypsum additive to a post-mixer aqueous dispersion of calcined gypsum |
| 05/21/2008 | CN101184702A Biomass-derived grinding aids |
| 05/21/2008 | CN101182150A Industrial crystallization technique for preparing alpha-semi-hydrated gypsum directly by desulfurized gypsum slurry |
| 05/20/2008 | US7374611 Sprayable machinable media |
| 05/20/2008 | US7374610 Wax emulsions for gypsum products |
| 05/14/2008 | CN100387540C Gypsum products and method for their manufacture |
| 05/13/2008 | US7371278 Method and apparatus for stabilizing plaster |
| 05/07/2008 | CN101172798A Building gypsum and mineral additive, and method of manufacturing the same |
| 05/07/2008 | CN101172797A Method for on-line detection and automatic process of injurant in fluorine gypsum using process |
| 05/07/2008 | CN101172796A Production technology of full-dry desulfurizing gypsum building material product |
| 05/07/2008 | CN101172795A Alpha type high-strength gypsum cementing agent |
| 05/07/2008 | CN101172794A Moisture colour changeable plaster products |