| Patents for C04B 7 - Hydraulic cements (9,126) |
|---|
| 11/20/1991 | CN1014785B Method and apparatus for production of cement dinker by semi-wet process |
| 11/20/1991 | CN1014784B Method of making cement from ammonia-soda fag-end |
| 11/20/1991 | CN1014783B Method of fabricating flouring solid water glass slag cement |
| 11/19/1991 | WO1991017968A1 A silica fume hydrating and plasticizing admixture for concrete |
| 11/19/1991 | CA2063985A1 Silica fume hydrating and plasticizing admixture for concrete |
| 11/13/1991 | CN1014705B Quick-setting and quick hardening slag cement |
| 11/13/1991 | CN1014704B Process for using steelmaking slag |
| 11/06/1991 | EP0455582A2 Use of Water-settable compositions for fixing bolts and anchoring bars. |
| 11/06/1991 | EP0455301A2 Method and apparatus for the manufacture of clinker from mineral raw materials |
| 11/06/1991 | EP0454817A1 Process for the production of cement clinker and sulphur dioxide recovery. |
| 11/06/1991 | CN1014602B Process of self-decomposition for vessel slag afterheat |
| 10/31/1991 | WO1991016274A1 Manufacture of cement clinker in long rotary kilns by the addition of volatile fuel elements directly into the calcining zone of the rotary kiln |
| 10/30/1991 | EP0453947A2 Mix for civil and road building and process for the preparation thereof |
| 10/30/1991 | CN1055725A Low heat consumption processing for firing high strength clinker with vertical kiln |
| 10/29/1991 | US5061318 Immobilization of incinerator ash toxic elements in an environmentally safe soil cement composition and method of manufacture |
| 10/24/1991 | DE4012484A1 Utilising process heat in cement-clinker process - thus reducing amt. of energy needed per tonne of prod. |
| 10/23/1991 | CN1055530A White cement made of phosphorus-containing steel-making slag and its prepn. |
| 10/22/1991 | US5058679 Solidification of water based muds |
| 10/22/1991 | US5058513 Energy recovery from containerized waste |
| 10/12/1991 | WO1991015435A1 A cement composition and methods for producing same |
| 10/12/1991 | CA2080379A1 Cement composition and methods for producing same |
| 10/09/1991 | EP0451006A1 Process for incinerating waste |
| 10/09/1991 | CN1055165A Roasting of cement by differential process in vertical furnace |
| 10/08/1991 | US5054406 Water retardant covering material for solid waste landfills |
| 10/08/1991 | CA1290355C Landfill composition and method of producing the same |
| 10/02/1991 | DE4027529C1 Prodn. of chloro:silicate(s) - includes cleaning gases produced in thermal treatment of chloro:silicate(s) and feeding to waste gas burning unit |
| 10/02/1991 | CN2085796U Wet dehydrating device for cement grout stock house |
| 10/01/1991 | CA1289977C Grouting composition comprising slag |
| 09/18/1991 | EP0447300A1 Method for melting and refining a batch |
| 09/17/1991 | US5049198 Calcium sulfate process for the coproduction of Portland cement clinker and concentrated sulfur dioxide adequate to manufacture sulfuric acid |
| 09/11/1991 | EP0445938A1 Pulverized coal burner, pulverized coal boiler and method of burning pulverized coal |
| 09/04/1991 | CN2083954U Mixer with gas agitation |
| 09/04/1991 | CN1054236A High-fe-f aluminate super-early strength cement |
| 09/03/1991 | US5044942 Cement shaft suspension furnace and process |
| 08/29/1991 | DE4006162A1 Bituminous limestone processing - for simultaneous prodn. of electric current, portland cement and calcium sulphate |
| 08/28/1991 | EP0442892A1 Process and arrangement for reducing salt cycles, in particular in cement kilns. |
| 08/27/1991 | US5043020 Roasting in carbon monoxide; forced cooling |
| 08/20/1991 | US5040972 Pyrolyzer-kiln system |
| 08/14/1991 | EP0440935A1 Process and device for cooling burned materials |
| 08/07/1991 | EP0439824A1 Process and installation for the heat treatment of fine-grain material, particularly for the production of cement clinker |
| 08/01/1991 | DE4002553A1 Cement clinker mfr. burns used tyres - in rotary kiln with excess oxygen for exhaust to be burned with further fuel |
| 07/31/1991 | EP0438838A2 Process for manufacturing a cement and a granulate from converter steel slag, and granulator device |
| 07/25/1991 | WO1991010874A1 Cement shaft suspension furnace and process |
| 07/20/1991 | WO1991010628A1 Process for the slaking of quick lime contained in ashes |
| 07/20/1991 | CA2073338A1 Process for quenching quicklime contained in ashes |
| 07/17/1991 | EP0437324A2 Cement and production thereof and concrete made therefrom |
| 07/17/1991 | EP0436822A2 Process for the purification of exhaust gases of plants for the production of cement clinker |
| 07/17/1991 | CN1053048A Multifunctional additive for cement |
| 07/11/1991 | WO1991009809A1 Raw meals for hydrated sulphate of gypsum processing |
| 07/10/1991 | EP0435866A1 Cooling of scissors for cutting of glass gobs. |
| 07/10/1991 | CN2080517U Fluidization preheater |
| 07/10/1991 | CN1052838A Multi-functional high-iron cement clinker and its production method |
| 07/10/1991 | CA2029068A1 Cement product and method of producing the same and composition for producing cement product as well as mass concrete and method of producing the same together with cement for producing mass concret |
| 07/09/1991 | US5030288 Active mineral additive to binding materials |
| 07/09/1991 | US5030282 Carbon fiber-reinforced cementitious composite and method for producing the composite |
| 07/09/1991 | CA1285761C Plant for manufacturing cement clinker |
| 07/03/1991 | EP0435361A1 Method of reducing nitrogen oxides and sulfur compounds in exhaust gases |
| 06/26/1991 | EP0434112A1 Hydraulic binder, particularly for grouting, and grout thus obtained |
| 06/26/1991 | CN1052469A Technology for electric generation with coal gangue while production of early strength cement |
| 06/26/1991 | CN1012951B Process for producing cement by hypercalcium powdered coal ash |
| 06/25/1991 | US5026275 Air polution control |
| 06/21/1991 | CA2029503A1 Process of decreasing the no content of exhaust gases |
| 06/20/1991 | DE3940903A1 Toxic waste esp. halogenated organic and heavy metal disposal - by fixing with synthetic calcium hydro-silicate and opt. calcium aluminosilicate |
| 06/19/1991 | CN1052297A Producing bonding cement by fluidized bed boiler calcined marlite |
| 06/19/1991 | CN1012919B Multi-cylinder cooler capable of forming rain-column material curtain |
| 06/11/1991 | CA1284802C Process of removing polluants from exhaust gases |
| 06/08/1991 | WO1991008990A1 Immobilization of incinerator ash toxic elements in an environmentally safe soil cement composition and method of manufacture |
| 05/30/1991 | WO1991007360A1 Process for the production of cement clinker and sulphur dioxide recovery |
| 05/29/1991 | CN1051717A Process of solid sulphide dregs cement from solid sulphide dregs in burning coal |
| 05/29/1991 | CN1051716A Process for preparing early strengthening agent for solidification of sulfur dregs cement |
| 05/28/1991 | US5018968 Revolving grate cooler for cooling of clinker or similar products |
| 05/28/1991 | US5018459 Reuse as filler |
| 05/21/1991 | US5017234 Processing additives for blended cements |
| 05/15/1991 | EP0426813A1 Process for manufacturing clinkers. |
| 05/08/1991 | CN1051160A Bulk colored facing cement |
| 05/08/1991 | CN1051159A Quick-hardening slag cement |
| 05/08/1991 | CN1051158A Mixed diorite cement |
| 05/07/1991 | US5012751 Process and apparatus for treating solid refuse |
| 05/02/1991 | WO1991005644A1 Process for producing improved building material and product thereof |
| 04/24/1991 | CN1050860A Machinery vertical kiln producing 75deg. c oil well cement |
| 04/24/1991 | CN1050859A Method of silicate cement grog burnt by copper mine slag burden |
| 04/18/1991 | WO1991004953A1 Cement matrix and process for its production |
| 04/18/1991 | DE3934611A1 Solid residue obtd. by heating communal mud - is made into cement by grinding with cement clinker |
| 04/16/1991 | US5007823 Dust recycling to rotary kilns |
| 04/11/1991 | CA2027216A1 Process for producing improved building material and product thereof |
| 04/03/1991 | CN2074301U Fluidized-bed roasting device for low-temp. cement |
| 03/28/1991 | DE3931045C1 Producing hydraulic binder - from mixt. of coal fly ash and hot meal, from cement prodn. |
| 03/26/1991 | US5002611 Process for manufacturing a hardenable mixture containing coal ash process for manufacturing hardenend granules containing coal ash and building component containing coal ash |
| 03/20/1991 | EP0417705A1 Method and system for aqueous sewage sludge disposal |
| 03/20/1991 | CN1012060B Method for producing high strenth waterproof alumina cement |
| 03/07/1991 | DE3929593A1 Conversion of cement clinker prodn. from wet to dry process - involves sepg. original clinker oven into a shorter oven and cooler, drier and cyclone heater with calcified are linked to the oven |
| 03/06/1991 | EP0415799A2 Enhanced blended and portland cement compositions |
| 03/06/1991 | EP0415095A1 Process for the heat-treatment of fines |
| 03/06/1991 | CN1011891B Artificial marble and its prodn. method |
| 03/06/1991 | CN1011890B Static crushing agent |
| 03/05/1991 | US4997486 Method of producing a solid secondary raw material containing calcium sulfate |
| 03/05/1991 | US4997484 Fly ash, citric acid, alkali metal compound |
| 03/05/1991 | US4997363 Method and apparatus for producing cement clinker |
| 03/05/1991 | US4997357 Apparatus for treatment of power station residues |
| 02/27/1991 | CN1049489A Prodn. of cement with stone coal etc. as burden |