| Patents for C04B 7 - Hydraulic cements (9,126) |
|---|
| 07/11/1990 | CN2059163U Automatic controlling system for wet cement slurry feeding into kiln |
| 07/11/1990 | CN2059162U Screw dryer for cement raw material drying grinding head |
| 07/04/1990 | CN1043486A High-strength cement chamotte |
| 06/27/1990 | EP0375081A1 Cement, method of preparing such cement and method of making products using such cement |
| 06/27/1990 | CN2058677U Baking and grinding device for slag cement |
| 06/27/1990 | CN1043377A Method for energy recovery from solid hazardous waste |
| 06/26/1990 | CA1270637A1 Gas suspension reactor |
| 06/23/1990 | CA2006579A1 Cement, method of preparing such cement and method of making products using such cement |
| 06/21/1990 | DE3841381A1 Device for the arrangement of expanding guide nozzles or pipes of air-blasting equipment in boundary walls of reaction chambers |
| 06/20/1990 | CN1043116A Inorganic sound absorbent for building |
| 06/13/1990 | CN1042892A Manufacture process of materials used for cement pipes |
| 06/13/1990 | CN1042891A Dust collecting technology of flue gas from vertical kiln of producing cement by wet forward ejection and counter filtering process |
| 06/12/1990 | US4933013 Ultra-fine particles, water reducing agent, and water |
| 06/12/1990 | US4932862 Suspended gas reactor |
| 06/05/1990 | US4930965 Apparatus for charging solid fuel to rotary kilns |
| 06/05/1990 | CA1269830A1 Calcining process using fluid coke fuel |
| 05/31/1990 | WO1990005782A1 Method for energy recovery from solid hazardous waste |
| 05/30/1990 | CN1042530A Energy-saving fast-setting and super-high strength portland clinker cement |
| 05/29/1990 | US4929178 Method for the heat treatment of finely granular material |
| 05/23/1990 | CN1042342A Formulation of mixed cement material from phosphorus slag |
| 05/16/1990 | CN1042140A Method for producing high strength waterproof alumina cement |
| 05/09/1990 | EP0367550A2 A drive circuit for a printer |
| 05/09/1990 | CN1007890B Supplying heat and producing cement materials concurrently by burning coal briquettes |
| 05/01/1990 | US4921538 Method for recycle and use of contaminated soil and sludge |
| 05/01/1990 | US4921537 Shrinkage compensated mortar material |
| 04/18/1990 | EP0363429A1 Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust. |
| 04/18/1990 | CN1041346A Calcination of cement in closed vertical kiln with full black material and its microcomputer control |
| 04/18/1990 | CN1041345A Diabase cement clinker and preparing method thereof |
| 04/18/1990 | CN1041344A Low-frangibility cement |
| 04/12/1990 | DE3834494A1 Process for producing binder for mortar or concrete production |
| 04/10/1990 | US4915914 Combing gas and waste dust in water to precipitate salts for use as fertilizer and kiln feedstock |
| 04/10/1990 | US4915741 Workability, water retention |
| 04/10/1990 | US4915740 Hydraulic material composition having high strength |
| 04/05/1990 | WO1990003346A1 Cement composition |
| 04/05/1990 | WO1990003345A1 Method of obtaining active mineral admixture to cementing materials |
| 04/05/1990 | WO1990003344A1 Raw-material mixture for obtaining an active mineral additive to cement |
| 04/05/1990 | WO1990003343A1 Method for production of portland cement klinker |
| 04/05/1990 | WO1990003342A1 Method of producing portland cement klinker |
| 04/05/1990 | WO1990003341A1 Cooling of scissors for cutting of glass gobs |
| 04/05/1990 | WO1990003340A1 Method for production of portland cement klinker |
| 04/05/1990 | DE3833462A1 Method and apparatus for separating wheels from vehicle tyres to be combusted |
| 04/04/1990 | CN2055498U Automatic monitor control system for bias fire of cement vertical kiln |
| 04/03/1990 | US4913742 Process of making cement clinker and apparatus for performing said process |
| 03/27/1990 | US4911757 Calcium aluminum silicate |
| 03/22/1990 | WO1990002915A1 Process and arrangement for reducing salt cycles, in particular in cement kilns |
| 03/22/1990 | DE3831671A1 Water-resistant gypsum or gypsum cement |
| 03/21/1990 | EP0359020A1 Process for the recovery of wastes containing sodium sulfate |
| 03/14/1990 | CN2054371U Non-power reciprocating type automatic side scraper |
| 02/28/1990 | EP0356086A1 Cement compositions |
| 02/21/1990 | CN1039789A Method of non-baking brick made by powdered coal ash |
| 02/08/1990 | DE3249786C2 Use of the residual solids from dry flue gas desulphurisation as building material for producing shaped objects |
| 02/06/1990 | US4898615 Method of manufacturing cement |
| 01/31/1990 | EP0353062A2 Reinforced cement compositions |
| 01/30/1990 | US4897218 Anionic surfactant |
| 01/30/1990 | US4897119 Addition polymer containing acrylic acid, unneutralized or salt of alkali metal or ammonia; chemical resistance; nontoxic; grouting |
| 01/24/1990 | EP0352192A1 Process for grinding and compacting any kind of ore and apparatus for carrying out this process |
| 01/24/1990 | CN2051632U Dispelling device for free calcium oxide in cement |
| 01/17/1990 | EP0351302A1 Method for the selection of one puzzolane to be incorporated in a composite material containing cement and glass |
| 01/17/1990 | CN2051226U Equipment for manufacturing asbestos cement product |
| 01/17/1990 | CN1038802A Quick-setting and quick hardening slag cement |
| 01/11/1990 | DE3822682A1 Use of mortars having low development of alkalinity and comprising sand and mineral hydraulically setting binder mixture |
| 01/10/1990 | CN2050848U Cone step lining board of cement tube grinding machine |
| 01/03/1990 | EP0348756A1 Process for the production of a binder and its utilisation |
| 01/02/1990 | US4891007 Method and apparatus for the manufacture of cement from raw cement meal |
| 12/27/1989 | EP0347808A1 Process for the treatment of sewage sludge |
| 12/27/1989 | EP0347655A2 Method of making a rapidly hardening hydraulic binder upon mixing with water |
| 12/27/1989 | CN1038262A Vertical kiln method for making clinker of sulphur aluminate and iron sulphur aluminate |
| 12/20/1989 | EP0347240A2 Method for recycle and use of contaminated soil and sludge |
| 12/20/1989 | EP0346992A1 Process for manufacturing a hardenable mixture containing coal ash; process for manufacturing hardened granules containing coal ash and building component containing coal ash |
| 12/20/1989 | EP0346416A1 Hydraulic cement and composition employing the same. |
| 12/20/1989 | EP0346350A1 Cement composition curable at low temperatures |
| 12/20/1989 | CN1038081A Wet method for making cement from filter residue of sugar house |
| 11/15/1989 | EP0341417A2 Process and apparatus for drying wet materials, such as raw cement materials, by means of a gas flow |
| 11/15/1989 | CN2047665U Vertical preheater with several layers incline bed |
| 11/15/1989 | CN1037130A Novel making method for producing energy saving type cement in brick kiln by utilizing the industrial waster residue |
| 11/14/1989 | US4880582 Hardening granulated material at elevated temperatures |
| 11/07/1989 | US4878949 Method for the production of cement clinker from semi-wet raw material |
| 11/01/1989 | CN2046890U Roll-over scraper |
| 11/01/1989 | CN1036751A Process and equipment used for calcination, fluidization and decomposition of clinker |
| 11/01/1989 | CN1036750A Slag cement (energy conservation type) |
| 10/31/1989 | US4877453 Process of pretreating a pozzolanic material for increasing the pozzolanic properties of said material |
| 10/31/1989 | US4877452 High strength, heat resistance |
| 10/31/1989 | US4877397 Plant for manufacturing cement clinker |
| 10/25/1989 | CN2046502U Decomposing-burning two-stage combined rotary kiln |
| 10/11/1989 | CN2045737U Cement vertical kiln operation covering frame |
| 10/11/1989 | CN1036193A Stoichiometric method for rational matching of mineralization factor amt. |
| 10/04/1989 | EP0335103A1 Process for making low alkali clinker |
| 09/27/1989 | EP0334712A1 Preparation method for a mixture of mineral materials and the ground and agglomerated product obtained by the method |
| 09/27/1989 | CN2044974U Hydraulic column kiln with diameter of 2.5 m |
| 09/27/1989 | CN2044973U Vertical mechanical cement kiln |
| 09/27/1989 | CN2044972U Inclined vibration type material seal pipe |
| 09/27/1989 | CN2044924U Magic-hand for operation on kiln crown of cement shaft kiln |
| 09/27/1989 | CN1035885A 热交换器 Heat exchanger |
| 09/21/1989 | WO1989008813A1 Heat exchanger |
| 09/20/1989 | EP0333584A1 Process for the preparation of a mixture based on cement, metakaolin, glass fibres and a polymer |
| 09/20/1989 | CN1035652A Oxidizing sintering technique with uniform ventilation and temp |
| 09/14/1989 | DE3840858A1 Process and plant for thermal disposal of fine-grained waste materials, in particular sewage sludge |
| 09/13/1989 | EP0331704A1 Calcination of calcium carbonate and blends thereof |
| 09/13/1989 | CN2044340U Cement machine verticle kiln with equal material loading |
| 09/13/1989 | CN1035486A Barium-containing sulfoaluminate cement |