Patents for C04B 7 - Hydraulic cements (9,126)
09/1989
09/07/1989DE3806398A1 Two-roller machine for pressure treatment of granular material and method for operating such a machine
09/06/1989CN1035279A Air-blasting method for cement vertical kiln and its equipment
08/1989
08/31/1989DE3802429A1 Reprocessing and conversion of contaminated problem waste materials into products for the production of load-bearing building materials for underground mining
08/29/1989US4861265 Apparatus and method for the heat treatment of fine-grained material
08/22/1989USRE33031 Fertilizers from wastes; pollution control
08/17/1989DE3803786A1 Mineral binder and process for its production and processing
08/17/1989DE3803170A1 Apparatus and plant for producing cement clinker
08/15/1989US4857077 Process for removing flyslag from gas
08/08/1989CA1258269A1 Cementitious binder for consolidated fill
07/1989
07/27/1989DE3817356A1 Process and apparatus for the heat treatment of fine-grained material
07/26/1989EP0324753A1 Process for manufacturing a calcium sulphate-containing solid secondary raw material.
07/26/1989CN1034161A Mfg. artificial stone ornament
07/25/1989US4850290 Method for energy recovery from solid hazardous waste
07/06/1989DE3742566A1 Hydraulic binder
06/1989
06/28/1989CN2040098U Whirlwind oblate-tube preheater with high efficiency
06/28/1989CN2040097U Automatic controller of an electric heater for a vertical cement kiln
06/27/1989US4842649 Cement composition curable at low temperatures
06/27/1989CA1256461A1 Dry mortar mix to protect concrete structures
06/27/1989CA1256424A1 Method of producing concrete
06/15/1989WO1989005284A1 Hydraulic cement and composition employing the same
06/14/1989CN1004482B Production method of non-calcined fine coal powder aggregate
06/08/1989DE3838750A1 Method of incinerating fuel originating from waste in a burner for manufacturing cement clinker
06/07/1989CN1033317A Utilization of combustion installation with prior shaping equipment and chain grate stoker
06/01/1989WO1989004815A1 Methods of making cementitious compositions from waste products
05/1989
05/31/1989EP0318460A2 Process and apparatus for preheating raw material
05/31/1989CN2038497U Coal dust preparation apparatus with mutual reserve double pneumatic motor
05/24/1989CN1004299B Vertical cylinder pre-heating system for raw cement powder
05/23/1989CA1254384A1 Process and apparatus for thermally treating fine- grained solids, particularly for burning ground raw material for making cement
05/09/1989US4828620 Calcination of calcium carbonate and blend therefor
05/03/1989EP0313871A2 Process and device for the thermal treatment of fines
05/03/1989DE3735825A1 Apparatus for calcining pulverulent materials
05/03/1989CN1032652A Apparatus for successive calcination of powdered materials
05/03/1989CN1004073B Method and apparatus for producing cement clinker including white cement
04/1989
04/26/1989CN1003998B Method for producing silicate red cement from slag
04/19/1989EP0312323A2 Cement compositions
04/18/1989US4822574 For calcining particles in combustible fuel and gas; helical flow through prustoconical sections
04/12/1989CN1032331A Method for improving strength and special properties of cement clinker
04/06/1989WO1989002878A1 Cement composition curable at low temperatures
04/05/1989CN1032116A Hardening granulated material at elevated temp.
04/04/1989CA1252125A1 Method of producing structural panels
03/1989
03/28/1989US4817008 Method of regulating a cement manufacturing installation
03/28/1989US4815970 Apparatus for the heat treatment of fine-grained material
03/22/1989CN1031828A Colour cement produced by vertical kiln
03/21/1989US4813480 Apparatus for cooling dust or finely granular bulk material
03/16/1989DE3729481A1 Process and apparatus for heat-treating fine-grained material
03/15/1989CN1031692A Process for producing silicate cement from albite actinolite schist
03/09/1989WO1989001913A1 Calcination of calcium carbonate and blends thereof
03/09/1989DE3728787A1 Process for the disposal of residues formed in asbestos production
02/1989
02/28/1989US4808108 Method and apparatus for the heat treatment of fine-grained material
02/21/1989CA1250326A1 Process of pretreating a pozzolanic material for increasing the pozzolanic properties of said material
02/16/1989DE3825530A1 Retention aid for aqueous systems
02/09/1989DE3725513A1 Prepn. of pasty materials - neutralising or precalcining before rotary kiln burning
02/08/1989CN2032192U Energy saving device for industrical sludge storage flexible shaft pump
02/07/1989US4802922 Capsule having a compartment containing cement and reactive filler; and catalytic lime and water mixture
02/01/1989EP0301661A2 Hardening granulated material at elevated temperatures
02/01/1989CN2031793U Intensified type vertical cylinder pre-heater for cement rotary kiln
02/01/1989CN1030740A High-iron silicate cement clinker and its manufacturing method
01/1989
01/19/1989DE3820563A1 Verfahren zur reduzierung des alkaligehalts in zementklinker A method for reducing the alkali salary in cement clinker
01/19/1989DE3722652A1 Process for producing cement suspension
01/18/1989CN1030401A Method for reducing the alkali content in cement clinker
01/17/1989US4798628 Settable mineral clinker compositions
01/12/1989WO1989000282A1 Temperature measurement of hot mineral product by induced fluorescence
01/11/1989CN2030595U High-efficiency slotted cooler
01/10/1989US4797091 Method and apparatus for utilizing the heat energy of domestic and commercial refuse
01/10/1989CA1248557A1 Settable cementitious compositions
01/04/1989CN1030067A Blast-furnace cinder and slag cement of quick setting behavior and high-early strength
01/03/1989US4794870 Modulating method and system for kiln firing
12/1988
12/29/1988WO1988010243A1 Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust
12/28/1988EP0296621A1 Process for producing hard materials from combustion ash of fluidized bed
12/27/1988US4793861 Containing kaolin
12/21/1988CN87108216A Method of making cement from ammonia-soda fag-end
11/1988
11/16/1988CN87103131A Cement with dehydrating agent
11/15/1988US4784691 Dry cement composition
11/09/1988EP0290394A1 Improved hyraulic cement
11/08/1988CA1244488A1 Process and apparatus for manufacturing low sulfur cement clinker
11/02/1988CN87108332A Hydraulic binders and building elements formed of non-traditional materials
11/02/1988CN87102197A New fechnology for direct conversion of blast furnace melting slag into cement clinker
10/1988
10/26/1988CN87106767A Process for producing aluminosulfate colour cement
10/25/1988US4780143 Methods for suppressing cement clinker dust emissions
10/19/1988CN88101763A Method and apparatus for the production of cement clinker from cement raw slurry
10/13/1988DE3711145A1 Process and system for producing cement clinker from raw cement slurry
10/12/1988EP0286396A1 Cementitious compositions
10/12/1988CN87101827A Production process of building daub from soda-residue
10/05/1988CN88100725A Method and apparatus for production of cement clinker by semi-wet process
10/05/1988CN87108372A Flyslag treatment
10/05/1988CN87103601B Calcination process of coal gangue as cement raw material and fuel
10/04/1988US4775315 Process and apparatus for removal of deposits and linings from horizontal cylinders
09/1988
09/28/1988CN88101066A Calcining process and apparatus for black raw material vertical decomposition furnace
09/27/1988US4774064 Conversion of calcium compounds into solid and gaseous compounds
09/21/1988CN88101233A Method of manufacturing cement
09/14/1988EP0281830A2 Process and installation for the utilization of the thermal energy from domestic and industrial waste
09/13/1988US4770709 Process of pretreating a pozzolanic material for increasing the pozzolanic properties of said material
09/01/1988DE3705892A1 Process and system for the further processing of bypass dust in cement production
08/1988
08/31/1988CN87100904A Process for producing cement by hypercalcium powdered coal ash
08/31/1988CN87100767A Arrangement for preheating and calcination of powder raw material
08/31/1988CN87100766A Equipment for heating preparing powder raw material
08/30/1988US4767462 Inclined oxygen-free chamber for spraying water; air drying
08/24/1988EP0279169A2 Heat treatment device for fines
08/17/1988EP0278858A2 Method for milling mineral material and arrangement for carrying out this method
08/09/1988US4762561 Volume-stable hardened hydraulic cement
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