| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 01/15/2003 | CN2531340Y Loose chemical gypsum rapid calcinator |
| 01/15/2003 | CN1390796A Process for preparing mixed plaste for plastering |
| 01/08/2003 | EP1272340A1 Structural sheathing panels |
| 01/08/2003 | CN1389419A Activated gypsum and its production process |
| 11/21/2002 | WO2001019751A9 Gypsum-rich portland cement |
| 11/07/2002 | WO2002088045A1 Method of producing calcium sulfate alphahemihydrate |
| 11/07/2002 | US20020164281 Method of producing calcium sulfate alpha-hemihydrate |
| 11/07/2002 | CA2445853A1 Method of producing calcium sulfate alphahemihydrate |
| 11/05/2002 | US6475462 Process and apparatus for treating particulate matter |
| 10/24/2002 | WO2002083593A1 Cementitious compositions and a method of their use |
| 10/10/2002 | US20020145234 Air lance for smooth surface gypsum fiberboard panels |
| 09/25/2002 | EP1242329A1 Gypsum-rich portland cement |
| 09/18/2002 | CN1369457A Process for preparing plastering gypsum |
| 09/12/2002 | US20020127173 Process for utilizing waste salt mixtures from halex reactions |
| 08/22/2002 | WO2001085412A3 Production process of high-purity gypsum |
| 08/20/2002 | US6435770 Method of forming a synthetic cap on a bulk material pile |
| 08/07/2002 | EP1064227B1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 08/07/2002 | CN1362382A Prepn process of high-strength alpha-half hydrated gypsum |
| 07/25/2002 | DE10202470A1 Conversion of ammonium aluminum alum into aluminum sulfate and ammonium sulfate by two-stage dehydration and thermal decomposition |
| 07/18/2002 | DE10101394A1 Re-utilization of Halex reaction salt mixture by-product involves treating with sulfuric acid and then calcium fluoride to give a calcium sulfate binder useful in building materials |
| 07/09/2002 | US6416723 Method for reprocessing waste acid to form gypsum and iron oxide |
| 07/09/2002 | US6416695 Air jets to impart energy to surface when the composite material is still in a slurry state to break up flocs or clumps |
| 06/04/2002 | US6398864 Calcium sulfate hemihydrate, ammonium or potassium sulfate; ammonium and potassium sodium tartrate; castings; enhanced absorption and purge rates |
| 05/30/2002 | WO2002042064A1 Structural sheathing panels |
| 05/08/2002 | CN1084308C Special anti-sulfate cement and its producing process |
| 04/20/2002 | CA2359517A1 Method of forming a synthetic cap on a bulk material pile |
| 03/27/2002 | CN1342215A Tungsten carbide coatings and method for producing the same |
| 03/06/2002 | EP1183216A1 METHOD AND ARRANGEMENT FOR PRODUCING $g(a)-CALCIUM SULPHATE HEMIHYDRATE USING THE GYPSUM SUSPENSION PRODUCED DURING THE WET FLUE GAS DESULPHURIZATION OF A FOSSIL-FIRED THERMAL POWER STATION |
| 02/27/2002 | CN1337369A Gypsum fiber producing process |
| 02/20/2002 | CN2477631Y Double-rotor hammer type drying and calcining machine |
| 02/14/2002 | WO2002012141A1 Lightweight gypsum board product and method of manufacture |
| 02/14/2002 | CA2418949A1 Lightweight gypsum board product and method of manufacture |
| 02/06/2002 | CN1334745A Implant comprising calcium cement and hydrophobic liquid |
| 12/19/2001 | EP1163192A1 Method and apparatus for continuously calcining gypsum |
| 12/05/2001 | EP0797551B1 Cementitious gypsum-containing compositions and materials made therefrom |
| 11/28/2001 | EP1158070A1 Tungsten carbide coatings and method for producing the same |
| 11/28/2001 | CN1323742A Method for producing high purity plaster |
| 11/21/2001 | EP1021384B1 Reclamation of gypsum materials |
| 11/15/2001 | WO2001085412A2 Production process of high-purity gypsum |
| 11/14/2001 | EP1152993A1 Method for producing an anhydrite iii or alpha based hydraulic bonding agent |
| 11/07/2001 | EP1150722A1 Implant comprising calcium cement and hydrophobic liquid |
| 11/01/2001 | WO2000045867A8 Implant comprising calcium cement and hydrophobic liquid |
| 10/25/2001 | WO2001079116A1 Alpha calcium sulfate hemihydrate and a method of making alpha calcium sulfate hemihydrate |
| 10/09/2001 | CA2009176C Continuous production of gypsum board |
| 09/27/2001 | WO2001070377A1 Use, method and composition of organic acids in gypsum producing desulphurising plants |
| 08/22/2001 | CN1309101A Use of diphenyl methane diisocyanate for producing plaster/wood fibre board |
| 08/16/2001 | EP1123901A1 Process for the production of di-hydrated calcium sulfate from exhausted sulfuric acid |
| 08/15/2001 | CN1069573C Method for preparing foamed gypsum product |
| 08/07/2001 | CA2191842C Cementitious gypsum-containing compositions and materials made therefrom |
| 07/24/2001 | CA2139364C Process for preparing phosphomagnesium ciments |
| 07/11/2001 | CN2438716Y Heat exchange and air stirring bubbling gyp dewatering device |
| 07/11/2001 | CN2438715Y Indirect heating gyp dewatering device |
| 07/04/2001 | EP1112983A2 Application of a diisocyanate for producing composite gypsum board |
| 07/03/2001 | CA2192733C Cementitious gypsum-containing compositions and materials made therefore |
| 06/30/2001 | CA2329629A1 Application of methylenediphenyldiisocyanate for producing gypsum/wood fiber board |
| 06/13/2001 | EP1106588A1 Improved pottery plaster formulations for the manufacture of plaster molds |
| 06/13/2001 | CN2434303Y Gyp dewatering pressure pot |
| 04/25/2001 | CN1292361A High-strength damp-proof building material and its production method |
| 04/25/2001 | CN1292359A New production method of gypsum |
| 04/12/2001 | WO2000047796A8 Tungsten carbide coatings and method for producing the same |
| 03/28/2001 | CN1288869A Preparation of chemical gypsum for cement |
| 03/22/2001 | WO2001019751A1 Gypsum-rich portland cement |
| 03/22/2001 | CA2384747A1 Gypsum-rich portland cement |
| 02/28/2001 | EP1078698A1 Method and apparatus for thermolytic treatment of polymer- and cellulose containing materials, especially light shredder residues |
| 02/15/2001 | DE19936524A1 Verfahren und Vorrichtung zur thermolytischen Aufarbeitung von polymer- und zellulosehaltigen Stoffen, insbesondere Shredderleichtgut Method and apparatus for thermolytic processing of polymer and cellulose containing materials, especially Shredderleichtgut |
| 01/24/2001 | EP1070683A1 Apparatus and process for cooling and de-steaming calcined stucco |
| 01/16/2001 | US6174362 Processing equipment and method for a pulverulent calcium sulphate material and novel hydraulic binder |
| 01/03/2001 | EP1064227A1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO 2? PRODUCTION |
| 12/21/2000 | WO2000076935A1 Method and apparatus for stucco paper separation |
| 12/06/2000 | CN1059183C Safety self-stress sulphoaluminate cement and its manufacturing method |
| 11/22/2000 | EP1053981A2 Fluid spray apparatus and method for smooth surface gypsum fiberboard panels |
| 11/22/2000 | CN1273883A Spraying device and method for enabling surface smooth of gypsum fibreboard |
| 10/31/2000 | US6138377 Apparatus and process for cooling and de-steaming calcined stucco |
| 10/18/2000 | EP0655990B2 Process for baking gypsum and oven for carrying out said process |
| 10/04/2000 | EP1039964A1 Method and device for exploiting the flue-gas heat in brown coal power stations with wet flue-gas desulphurisation |
| 09/14/2000 | WO2000053540A1 Method and apparatus for continuously calcining gypsum |
| 08/31/2000 | DE19908776A1 Verfahren zur Herstellung von hochreinem alpha-Spezialgips Process for the preparation of highly pure alpha-special plaster |
| 08/30/2000 | EP0810920A4 Method for preparing foamed gypsum product |
| 08/29/2000 | CA2122964C Low temperature well cementing compositions and methods |
| 08/24/2000 | WO2000048958A1 METHOD AND ARRANGEMENT FOR PRODUCING α-CALCIUM SULPHATE HEMIHYDRATE USING THE GYPSUM SUSPENSION PRODUCED DURING THE WET FLUE GAS DESULPHURIZATION OF A FOSSIL-FIRED THERMAL POWER STATION |
| 08/23/2000 | CN1263875A Process for preparing superactive gypsum by calcining in vertical kiln |
| 08/17/2000 | WO2000047796A1 Tungsten carbide coatings and method for producing the same |
| 08/17/2000 | WO2000047531A1 METHOD FOR PRODUCING AN ANHYDRITE III OR α BASED HYDRAULIC BONDING AGENT |
| 08/10/2000 | WO2000045867A1 Implant comprising calcium cement and hydrophobic liquid |
| 07/26/2000 | EP1021384A1 Reclamation of gypsum materials |
| 07/19/2000 | EP1019184A1 A process and apparatus for treating particulate matter |
| 07/04/2000 | US6083465 Flash calcining impact milling |
| 05/31/2000 | CN1052965C Technology for production of cement and sulfuric acid by phosphor gypsum |
| 04/25/2000 | US6054101 Thermal treatment of gypsum in a fluidized bed. |
| 04/19/2000 | CN1051536C Processing equipment and method for pulverulent calcium sulphate material, and hydraulic binder therefrom |
| 04/19/2000 | CN1051477C 固-液分离器 Solid - liquid separator |
| 03/01/2000 | CN1245788A Technological process for producing a type semi-hydrated gypsum powder by utilizing citric acid gypsum offscum |
| 01/12/2000 | CN1048234C Cementitious gypsum-contg. compositions and material made therefrom |
| 12/22/1999 | CN2354956Y High strength gypsum producing apparatus |
| 12/22/1999 | CN1047581C Volcanic ash ardealite cement producing process |
| 11/09/1999 | US5980627 Production of commercially useful materials for waste gypsum boards |
| 11/01/1999 | CA2236486A1 Production of commercially useful materials from waste gypsum boards |
| 10/21/1999 | DE19802179A1 Gypsum washing plant operation and quality control by monitoring filtration vacuum level |
| 10/20/1999 | CN2344402Y Laying-off equipment for rotary kiln |
| 10/20/1999 | CN1231939A Wet flue gas desulfurization apparatus |