Patents for C04B 2 - Lime, magnesia or dolomite (2,806)
02/1998
02/03/1998US5713734 Equipment for and method of calcination of mineral materials with reduced emission of nitrogen oxides
01/1998
01/28/1998CN1171840A Reactor for heating and treating materials in controlled atmosphere
01/27/1998US5711802 Heat treatment of lime sludge
01/22/1998WO1998002391A1 Controlled reactivity quicklime and method for producing aerated autoclaved concrete
01/21/1998CN1170703A Gangue building powder and its producing method
01/06/1998US5705141 Calcium and/or magnesium hydroxide, and preparation and use thereof
01/06/1998CA2050944C Sulfur dioxide removal from gases using a modified lime
11/1997
11/13/1997DE19618569A1 Highly transparent multilayer interference pigments for lacquers, inks, cosmetics, laser-markable plastics etc.
11/11/1997US5685709 Apparatus for heat treatment of lime sludge
10/1997
10/30/1997WO1997039991A1 Process for producing calcium hydroxide
10/29/1997EP0802834A1 Process for applying low-cement castable refractory material
10/15/1997EP0800640A1 Reactor for heating and treating materials in a controlled atmosphere
10/15/1997CN1161942A Method for burning out lime by using gas-making cinder
10/02/1997DE19620720C1 Exhaust gas desulphurising
10/02/1997DE19614430C1 Production of calcium oxide from precipitated calcium carbonate
09/1997
09/24/1997EP0796230A1 A method of preparing a puzzolanic material form paper residue and a method for the manufacture of cement from said material
09/23/1997CA2116595C Compact lime slaker and method of slaking lime
09/04/1997WO1997032174A1 Method for the calcination of calcium carbonate bearing materials
09/03/1997CN2261426Y Lime kiln
08/1997
08/26/1997CA2133624C Production of low sulfur content lime from limestone
08/20/1997CN1157272A Process for preparing active lime and its after-treatment device
08/12/1997CA1339241C Continuous process of dry slaking lime
08/06/1997CN1156474A Static furnace for thermal decomposition solids at high temperature by thermal rediation
08/06/1997CN1156437A Process for realization of endothermic reactions for thermal decomposition of solids, producing gases and solid residue
08/05/1997US5653948 Fluidizing coarse particles in fluidized bed with heated gas; recovering fine quicklime powder by separating from gas with a solid/gas separator
07/1997
07/17/1997DE19601933A1 Treating calcium hydroxide suspension for use in flue gas scrubbers
07/16/1997EP0783556A1 Static furnace for the thermal decomposition of solids at high temperatures by thermal radiation
07/16/1997EP0783456A1 Process for the realization of endothermic reactions for the thermal decomposition of solids, producing gases and solid residues
07/16/1997CN1154465A Apparatus for precalcining cement material
06/1997
06/26/1997DE19548155A1 Apparatus for regenerative firing of particulate material having two parallel cylindrical containers connected at top ends
06/18/1997CN1152109A Annular shaft furnace
06/18/1997CN1035172C Method and apparatus for making building product
06/12/1997WO1997020784A1 A settable composition and uses therefor
06/11/1997EP0777550A2 Nanoscale particles, and uses for same
05/1997
05/22/1997DE19543121A1 Manufacture of dry mortar from burnt lime and additives
05/21/1997EP0774635A1 Ringshaft furnace
05/13/1997US5628940 On a surface without forms, by mixing dry material with water, hydraulically pumping wet thixotropic mix through hose to nozzle, adding air and setting agent at nozzle, spraying end mix of diminished thixotropy, immediate setting
05/07/1997CN2253741Y Material feeding cylinder used in equipment for calcining lime from causticizer
04/1997
04/24/1997WO1997014650A1 Ca(OH)2 PARTICLES
04/16/1997EP0767764A1 Plant for heat treatment of lumpy material
04/09/1997CN2251558Y 石灰窑 Limekiln
04/08/1997US5618508 Process for purifying exhaust gas using modified calcium hydroxide
03/1997
03/27/1997DE19641207A1 Cement raw material pre-calcining appts.
03/26/1997CN1145883A Lime producing process using sugar refinery filter mud
02/1997
02/20/1997DE19531942A1 Cement-free hydraulic setting building material prodn.
02/19/1997CN1143052A Calcium-magnesium powder and silicon-calcium-magnesium plastering material and preparing method and use
01/1997
01/22/1997EP0754924A1 Apparatus and process for the calcination of raw materials with reduced nitrogen oxide emission
01/16/1997WO1997001615A1 Static furnace for the thermal decomposition of solids at high temperatures by thermal radiation
01/16/1997WO1997001510A1 Process for the realization of endothermic reactions for the thermal decomposition of solids, producing gases and solid residues
01/16/1997CA2194676A1 Process for the realization of endothermic reactions for the thermal decomposition of solids, producing gases and solid residues
01/16/1997CA2194675A1 Static furnace for the thermal decomposition of solids at high temperatures by thermal radiation
01/08/1997EP0751916A1 Heat treatment of lime sludge
12/1996
12/11/1996EP0747647A1 Vertical type calcination kiln
12/05/1996DE19622292A1 High purity calcium carbonate recovery
12/04/1996CN1137027A Compound magnesium gelatinous material and making method and use thereof
11/1996
11/20/1996CN2240525Y External combusion type active lime kiln
11/14/1996DE19517603A1 Converting wet clarified sludge into useful prods. such as fuel, fertiliser or building material
11/13/1996CN2239967Y Gas lime-burning shaft furnace
11/12/1996US5573587 Process for producing building materials from paint sludge
10/1996
10/02/1996EP0735010A1 Method and apparatus for calcining fine limestone powder
09/1996
09/26/1996DE4396528C1 Abalone shell powder and sesame oil compsn for burn treatment
09/25/1996EP0733602A1 Process for making milk of lime
09/18/1996EP0732304A1 Process for the preparation of magnesium compounds
08/1996
08/14/1996CN2232913Y N-type pyrolyzer for continuous prepn. of magnesium carbonate
08/07/1996CN2232441Y Automatic control device of activated lime vertical furnace
08/01/1996DE19502066A1 Lime suspension prodn. for flue gas desulphurisation
07/1996
07/17/1996CN1126707A Method of producing lime emulsion with tanning effluent
07/10/1996CN1126179A Fixed bed filtering preheater system for high temperature process furnances
07/04/1996WO1996020381A1 Reactor for heating and treating materials in a controlled atmosphere
07/04/1996CA2208835A1 Reactor for heating and treating materials in a controlled atmosphere
07/03/1996EP0558522B1 Method for preparing calcium and/or magnesium hydroxide, and use thereof
06/1996
06/26/1996EP0718251A2 A method of aging steel-making slag and an apparatus for use in such a method
06/20/1996DE4445010A1 System for treatment of calcium oxide-contg. fly ash for disposal
06/13/1996DE4443400A1 Small scale building material prodn. process
06/11/1996US5525783 Microwave heating device for lime and calcining
05/1996
05/29/1996CN1123256A Protective-dregs base-material of artificial wollastonite and producing technology thereof
05/08/1996EP0710632A1 Process for producing building materials from paint sludge
05/02/1996WO1996012612A1 Lime mud regeneration process and apparatus
05/01/1996EP0314733B1 The use of reactive calcium hydroxide for purifying gases and exhaust gases
04/1996
04/30/1996US5512265 Method of producing aqueous solution of slaked lime and apparatus therefor
04/10/1996CN2224203Y Channel-type revolving-stirring ash dissolving machine
03/1996
03/28/1996WO1996006700A3 Nanoscale particles, and uses for same
03/27/1996EP0621800B1 Process for briquetting and compacting fine grained materials
03/26/1996US5502021 Highly reactive reagents and compositions for purifying exhaust gases and wastewater, production and use thereof
03/13/1996EP0700876A2 Fixed bed filtering preheater system for high temperature process furnaces
03/07/1996WO1996006700A2 Nanoscale particles, and uses for same
03/07/1996DE4431508A1 Lime calcination uses lower temp. range for deacidifying
02/1996
02/29/1996WO1996006057A1 A method of preparing a puzzolanic material form paper residue and a method for the manufacture of cement from said material
02/29/1996DE4429781A1 Environmentally friendly disposal of fly ash contg. calcium oxide
02/20/1996US5492685 High surface area hydrated lime and method of removing SO2 from a gas stream
01/1996
01/25/1996WO1996001700A1 Process for applying low-cement castable refractory material
01/11/1996WO1996000703A1 Plant for heat treatment of lumpy material
01/09/1996US5481989 Method of collecting and conditioning a petroleum coke fluid bed combustion ash
11/1995
11/23/1995DE4418478A1 Prevention of unwanted crystal growth in gas scrubbing suspensions
10/1995
10/24/1995US5460517 Shaft kiln for burning a lumpy mineral charge
10/18/1995CN1110253A Method for preparation of superfine ground calcium carbonate
10/17/1995US5458833 Heating to deacidify and strengthen ground and shaped metal carbonate prior to sintering in a rotary kiln
10/11/1995CN2209674Y Rotary calcining kiln for continuous preparing light calcined magnesia with coal as fuel
10/03/1995US5454714 Equipment for and method of precalcining any mineral materials whatsoever
09/1995
09/28/1995WO1995025699A1 Heat treatment of lime sludge
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