| Patents for C04B 7 - Hydraulic cements (9,126) | 
|---|
| 02/20/1991 | CN1049298A Heating and treatment of particulate material | 
| 02/19/1991 | US4994114 Method for selecting a pozzolan intended to be incorporated into a composite material comprising cement and glass | 
| 02/14/1991 | DE3926756A1 Heat treatment of fine granular materials - with greater process efficiency achieved by redirecting part of mixed gas stream after cooling and dust removal back to mixing chamber | 
| 02/14/1991 | DE3926195A1 Sintering together foundry sand waste material and limestone - comprises mixing and sintering at 1400-1500 deg. C | 
| 02/13/1991 | EP0412913A1 Injection grout for consolidating cracked structures | 
| 02/12/1991 | US4992103 Cementitious compositions | 
| 02/12/1991 | US4992102 Synthetic class C fly ash and use thereof as partial cement replacement in general purpose concrete | 
| 02/12/1991 | CA2022981A1 Cracked structures consolidation grouting | 
| 02/10/1991 | WO1991001799A1 Heating and treatment of particulate material | 
| 02/06/1991 | EP0245326B1 Improvements relating to hydraulic binders | 
| 01/30/1991 | CN1011408B Calcination apparatus for use in fluidized bed burning installation for powdery raw material | 
| 01/29/1991 | CA1279663C Method of preparing building materials | 
| 01/29/1991 | CA1279662C Capsules of high alumina cement compositions | 
| 01/23/1991 | CN1011340B Method and apparatus for crushing deposit and masonry in cylindedr | 
| 01/22/1991 | CA1279333C Hydraulic binders and building elements formed of non- traditional materials | 
| 01/22/1991 | CA1279332C Volume-stable hardened hyraulic cement | 
| 01/15/1991 | US4985081 Method of producing cement or concrete | 
| 01/15/1991 | US4985080 Protective coating for concrete structures | 
| 01/15/1991 | US4984983 Method of cofiring hazardous waste in industrial rotary kilns | 
| 01/02/1991 | CN2068507U Scraper unit of base edge combined rotation without special driving power | 
| 01/01/1991 | US4981519 Cement | 
| 12/27/1990 | EP0403545A1 Heat exchanger. | 
| 12/19/1990 | CN1047849A Composition of new energy-saving cement | 
| 12/19/1990 | CN1047848A Process for pretreating raw cement | 
| 12/19/1990 | CN1047847A New energy-saving and production-increase process by convertion cement chamber from wet method into wet and dry mixed method | 
| 12/19/1990 | CN1047846A Technique for heating, power generation, and cement production by fluidized bed-combustion boiler | 
| 12/15/1990 | CA2018889A1 Very early setting ultra high early strength cement | 
| 12/13/1990 | WO1990015033A1 Very early setting ultra high early strength cement | 
| 12/12/1990 | CA2018800A1 Light weight formed body and producing the same | 
| 12/11/1990 | US4976469 Roll press | 
| 12/05/1990 | EP0393043A4 Methods of making cementitious compositions from waste products | 
| 12/05/1990 | CN1010678B Method for fine granular materials heating treatment | 
| 12/04/1990 | US4975396 Process for producing reinforced cementitious compositions and the products produced thereby | 
| 12/04/1990 | US4975046 Cement shaft suspension furnace and process | 
| 12/04/1990 | US4974529 Method for energy recovery from containerized hazardous waste | 
| 12/04/1990 | CA1277341C Fly ash processing method and system and product produced thereby | 
| 12/04/1990 | CA1277340C Flyslag treatment | 
| 12/01/1990 | WO1990014899A1 Process for manufacturing clinkers | 
| 12/01/1990 | CA2033342A1 Process for manufacturing clinkers | 
| 11/29/1990 | WO1990014322A1 Method and plant for the production of injectable cement mixtures | 
| 11/29/1990 | WO1990014318A1 Method and installation for roasting (a) mineral material(s) | 
| 11/29/1990 | EP0363429A4 Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust. | 
| 11/27/1990 | US4973464 Roasting in air or nitrogen atmosphere, volatilization, pyrolysis | 
| 11/22/1990 | EP0397963A1 Highly reactive hydraulic binder for the production of building materials | 
| 11/22/1990 | EP0397862A1 Raw-material mixture for obtaining an active mineral additive to cement | 
| 11/21/1990 | CN1047070A Cement for high grade road and its manufacture method | 
| 11/20/1990 | US4971781 Working up sodium sulfate-containing residues | 
| 11/20/1990 | US4971720 Method for suppressing process dust emissions | 
| 11/20/1990 | US4971627 Calcium sulfate, calcium sulfite, calcium hydroxide, calcium carbonate desulfurized product, mixing flue ash or flue dust, oxidation and roasting | 
| 11/20/1990 | CA1276433C Process of carrying out high-temperature reactions | 
| 11/15/1990 | WO1990013524A1 Shaped article with a cement-bound matrix and method and composition for the preparation thereof | 
| 11/15/1990 | DE3915432A1 Standard cement mfr. - using high pressure roller press, sieve and gypsum dehydration heat supply | 
| 11/14/1990 | EP0397189A2 Mixed gypsumless portland cement and its production | 
| 11/14/1990 | EP0396671A1 Cement composition | 
| 11/14/1990 | CN1010405B Process and equipment for calcining cement grog | 
| 11/13/1990 | US4969407 Containerized hazardous waste homogenate | 
| 11/13/1990 | CA1276188C Cementitious mixes | 
| 11/11/1990 | CA2016435A1 Mixed gypsulmless portland cement | 
| 10/31/1990 | CN1010230B Making decorative face brick from tailings of iron ore | 
| 10/24/1990 | EP0393731A1 Process for preparing a substance with hydraulic binding properties and substance prepared with this process | 
| 10/24/1990 | EP0393189A1 Method for production of portland cement klinker | 
| 10/24/1990 | EP0393043A1 Methods of making cementitious compositions from waste products. | 
| 10/24/1990 | CN1010083B Method and system for exhaust gas stream scrubbing | 
| 10/23/1990 | US4964914 Shredding, mixing with flammable fuel, dissolving, homogenizing | 
| 10/23/1990 | US4964912 High strength and excellent workability | 
| 10/23/1990 | CA1275424C Methods of making cementitious compositions from waste products | 
| 10/10/1990 | EP0391463A2 Reduction of nitrogen oxide (NOx) emission from a kiln plant | 
| 10/10/1990 | EP0390923A1 Method of obtaining active mineral admixture to cementing materials | 
| 10/09/1990 | US4961787 Cement composition | 
| 10/03/1990 | CN2063214U Vertical device for clinkering cement by dry process | 
| 10/03/1990 | CN1045761A Mew method for increasing production by cement kiln with vertical preheater | 
| 09/26/1990 | CN2062815U Preventing and safety protector for eruption of cement vertical kiln | 
| 09/26/1990 | CN1045571A Method of producing cement or concrete | 
| 09/26/1990 | CN1009768B Raw meal composition charge ratio autocontrol system for vertical furnance | 
| 09/19/1990 | CN2062332U Automatic homogenizer for raw materials in cement production | 
| 09/19/1990 | CN1009642B Blast-furnace slag cement of quick setting behavior and high-early strength | 
| 09/18/1990 | US4957556 Limestone, gypsum and bauxite, kaolinite and/or high alumina clay, heat treatment, slags, hydraulic cement, calcium sulfate | 
| 09/17/1990 | CA2011514A1 Method of producing cement or concrete | 
| 09/12/1990 | EP0248791B1 Dry mortar mixture | 
| 09/12/1990 | CN2061934U Extrusion forming equipment for cement raw material | 
| 09/11/1990 | US4955986 Method for the heat treatment of finely granular material | 
| 09/07/1990 | WO1990009968A1 Binder for a high strength high density concrete and concrete using said binder | 
| 09/07/1990 | WO1990009959A1 Method for the removal of cyanides from spent potlinings from aluminum manufacture | 
| 09/05/1990 | EP0385493A2 Process for the production of chlorosilicates, and their use | 
| 08/30/1990 | DE4005149A1 Verbesserte puzzolanische zubereitungen Improved pozzolanic preparations | 
| 08/29/1990 | CN1044932A Chloride-adding method for producing white cement | 
| 08/24/1990 | CA2010816A1 Pozzolanic compositions | 
| 08/23/1990 | DE3905454A1 Process and plant for heat-treating fine-grained material | 
| 08/23/1990 | DE3905453A1 Process and plant for heat-treating fine-grained material | 
| 08/22/1990 | CN2060774U Bleaching device for white cement clinker aggregate | 
| 08/22/1990 | CN1009270B Process and equipment of vertical kiln with ring section | 
| 08/22/1990 | CN1009248B Method and system for exhaust gas stream scrubbing | 
| 08/16/1990 | EP0382673A2 Method and apparatus for cofiring hazardous waste in industrial rotary kilns | 
| 08/08/1990 | EP0380878A2 Method and apparatus for producing cement clinker | 
| 08/08/1990 | CN1044449A Method and apparatus for producing cement clinker | 
| 08/07/1990 | US4946504 Of portland cement and monolithic crystals of calcium silicate hydrate | 
| 08/01/1990 | CN1008998B Equipment for vertical kiln sintering | 
| 07/26/1990 | DE3901436A1 Method and installation for comminuting or milling moist materials and their drying in a hot gas flow | 
| 07/25/1990 | CN1044081A Utilization of furnace slag in cement production | 
| 07/24/1990 | US4943323 Processing additives for blended cements |