Abstract: Composition in the form of green or thermally treated briquettes comprising at least one “quick” calcium-magnesium compound and an iron-based compound, the method of production thereof and uses thereof.
Type:
Application
Filed:
July 7, 2017
Publication date:
November 7, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Composition in the form of green or thermally treated briquettes comprising at least one “quick” calcium-magnesium compound comprising an iron-based compound and method of production thereof as well uses thereof.
Type:
Application
Filed:
July 7, 2017
Publication date:
November 7, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Method for handling a slag pot or ladle or pyro-metallurgical tools comprising the steps of spraying a mineral suspension onto a wall and putting into service of said slag pot or ladle or of the pyro-metallurgical tool, wherein said mineral suspension comprises calcium particles in suspension in an aqueous phase forming a calcium particle slurry containing a carbon hydrate at a content between 0.2 and 3%.
Type:
Application
Filed:
December 7, 2017
Publication date:
October 17, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Composition in the form of green or thermally treated briquettes comprising at least one “quick” calcium-magnesium compound comprising an iron-based compound and method of production thereof as well uses thereof.
Type:
Application
Filed:
July 7, 2017
Publication date:
September 26, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Composition based on quick calcium-magnesium compounds in the form of briquettes, characterised in that said composition comprises quicklime in the form of milled particles at a concentration of at least 10% by weight and at most 100% by weight relative to the weight of said composition, said composition in the form of briquettes having a Shatter test index of less than 10% and the method for preparation and use thereof.
Type:
Application
Filed:
July 7, 2017
Publication date:
August 22, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: A mineral composition made from a mixed solid phase of calcium and magnesium carbonates, method of preparing same and use thereof. A mineral composition made from a mixed solid phase of calcium and magnesium carbonates, formed from a crystallized calcium portion and a crystallized magnesium portion in the form of platelets, the crystals of the calcium portion and those of the magnesium portion being aggregated in the form of composite aggregates, said aggregates themselves being at least partially agglomerated, said calcium portion comprising at least one carbonate chosen from the group consisting of calcite, aragonite and the mixtures thereof, said magnesium portion comprising hydromagnesite in platelet form, said mixed solid phase having a bulk density less than or equal to 250 kg/m3, and greater than or equal to 80 kg/m3, measured according to standard EN 459.2.
Type:
Grant
Filed:
March 22, 2013
Date of Patent:
July 16, 2019
Assignee:
S.A. Lhoist Recherche et Developpement
Inventors:
Marion Lorgouilloux, Robert Sebastian Gartner, Marc Pelletier, Thierry Chopin
Abstract: Process for preparing a mineral composition based on a mixed solid phase of calcium and magnesium carbonates, comprising a preparation, in an aqueous phase, of a suspension of a solid phase containing at least one calcium compound selected from calcium hydroxide, calcium carbonate and mixtures thereof and at least one magnesium compound selected from magnesium oxide, magnesium hydroxide, at least partially hydrated dolomite, and mixtures thereof, the weight of said solid phase being between 5% and 15% of the total weight of the suspension, a carbonation of said solid phase in suspension by injecting a gas containing CO2 into said suspension that is heated at a temperature of 55° C. to 90° C., at a flow rate of CO2 of 2.
Type:
Grant
Filed:
September 15, 2014
Date of Patent:
July 16, 2019
Assignee:
S.A. Lhoist Recherche et Developpement
Inventors:
Marion Lorgouilloux, Marc Pelletier, Robert Sebastian Gartner, Thierry Chopin
Abstract: The present invention concerns a powdery slaked lime composition an Alpine fluidity greater than 50% and including a first fraction of particles having a size less than 32 ?m and a second fraction of particles with the size greater than 32 ?m, the second fraction being less than 10% by weight, compared to the total weight of the composition. The invention also relates to a method for producing same.
Type:
Application
Filed:
June 23, 2017
Publication date:
June 27, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Composition in the form of green or thermally treated briquettes comprising at least one “quick” calcium-magnesium compound comprising an iron-based compound and method of production thereof as well uses thereof.
Type:
Application
Filed:
July 7, 2017
Publication date:
May 16, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: The present invention relates to a method for producing a highly porous fine powdery slaked lime composition, comprising a fluidification step for forming said highly porous fine powdery slaked lime composition having an Alpine fluidity greater than 50% and which is carried out in a dryer/grinder chosen from the group consisting of a pin-type dryer/grinder, a cage-type dryer/grinder, an instantaneous dryer/disagglomerator and a combination of these until the powdery slaked lime composition has a non-solid residual-phase content of less than or equal to 3.5% by weight and greater than or equal to 0.3% by weight, as well as the product obtained therefrom.
Type:
Application
Filed:
June 23, 2017
Publication date:
May 2, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: A flame-retardant polymer composition comprising a mineral filler and a polymer, said mineral filler comprising a calcium compound, characterized in that the calcium compound is a fire-resistant additive in the form of calcium hydroxide, having a specific surface calculated according to the BET method greater than 25 m2/g, preferably greater than 30 m2/g, more preferably greater than 35 m2/g and advantageously greater than 40 m2/g, uses of same and the combustion residue obtained.
Type:
Grant
Filed:
July 12, 2013
Date of Patent:
April 23, 2019
Assignee:
S. A. Lhoist Recherche et Developpement
Inventors:
Marion Lorgouilloux, Didier Lesueur, Marc Pelletier, Fouad Laoutid, Philippe Dubois
Abstract: Process for manufacturing a milk of lime of great fineness comprising at least the steps of providing one lime compound and forming said milk of lime with a process water and said lime compound.
Type:
Application
Filed:
March 7, 2017
Publication date:
March 28, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Inventors:
Guillaume Criniere, Robert Sebastian Gartner
Abstract: A composition of milk of lime comprising particles of slaked lime suspended in an aqueous phase, characterised in that said particles of slaked lime have a particle size described by a particle size distribution profile that is narrow and monomodal and the method of production thereof.
Type:
Application
Filed:
September 6, 2018
Publication date:
January 3, 2019
Applicant:
S. A. Lhoist Recherche et Developpement
Inventors:
Robert Sebastian Gärtner, Luis Alfredo Diaz Chavez
Abstract: Device (10) for injecting powders into a furnace pipe (500), comprising a chamber (230) connected to a peripheral pipe (220) and, on the other hand, to the said furnace pipe via the said peripheral pipe (220), which comprises a first part (221) of diameter DP1, and a second part (222) of diameter DP2, having a downstream end (222a) and intended to be in communication with the furnace pipe, and a powder conveying pipe (120) which has a diameter DT and a downstream end (121), characterized in that the second part of the peripheral pipe has a length L?the diameter (DP2) of the second part of the peripheral pipe, and in that the diameter (DT) and the diameter (DP2) are connected by the relationship 0<DP2?DT<½ DT.
Type:
Application
Filed:
June 21, 2016
Publication date:
December 6, 2018
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: A process is shown for manufacturing a milk of lime of great fineness which includes at least the steps of providing one lime compound chosen in the group consisting of prehydrated lime, a paste of lime obtained by addition of water to quicklime instead of addition of quicklime to water and their mixture, and forming a milk of slaked lime of great fineness with the chosen lime compound. The paste of lime is obtained by progressive addition of water to quicklime under agitation conditions.
Type:
Grant
Filed:
September 7, 2015
Date of Patent:
November 27, 2018
Assignee:
S. A. Lhoist Recherche et Developpement
Inventors:
Galen Kutlubay, Deborah Ballard, Bernard Laurent, Augustin Querton
Abstract: A composition of milk of lime comprising particles of slaked lime suspended in an aqueous phase, characterized in that said particles of slaked lime have a particle size described by a particle size distribution profile that is narrow and monomodal and the method of production thereof.
Type:
Grant
Filed:
September 12, 2013
Date of Patent:
October 9, 2018
Assignee:
S. A. Lhoist Recherche et Developpement
Inventors:
Robert Sebastian Gaertner, Luis Alfredo Diaz Chavez
Abstract: Process for calcining mineral rock in a regenerative parallel-flow vertical shaft furnace, containing at least two shafts (1, 2) interconnected by a gas transfer channel (3), each shaft operating alternately in firing mode and in preheating mode, the firing mode comprising a combustion of fuel in the presence of air so as to obtain a firing of the rock to give calcined rock, an emission of combustion gases, and a passage of these gases from one shaft to the other by means of said channel (3), the preheating mode comprising a heat exchange between said rock and said combustion gases from said channel (3), this process additionally comprising an injection of supplementary air into said channel (3) with oxidation of unburnt products contained in the combustion gases passing through this channel.
Type:
Application
Filed:
October 5, 2016
Publication date:
October 4, 2018
Applicant:
S. A. Lhoist Recherche et Developpement
Abstract: Process for manufacturing highly porous slake lime comprising a feeding step of quicklime, a feeding step of water in a feeding zone of a hydrator, a slaking step of said quicklime in a slaking zone of said hydrator and a maturation step in a maturation zone of said hydrator to form slaked lime.
Type:
Application
Filed:
August 12, 2016
Publication date:
June 7, 2018
Applicant:
S. A. Lhoist Recherche et Developpement
Inventors:
Stephan Chini, Marion Lorgouilloux, Olivier Nyssen, Olivier Francoisse
Abstract: A system based on plant or bio-sourced materials selected from among coatings, mortars and concretes of bio-sourced materials comprising a plant or bio-sourced material selected from the group consisting of wood and hemp, and a binder composition comprising a first conventional mineral component and a second component, said system being characterized in that said binder composition has a specific surface area calculated according to the BET method, greater than 10 m2/g, preferably greater than 12 m2/g, in particular greater than 14 m2/g and uses thereof.
Abstract: A binder composition for enhanced mortars and coatings, comprising a first conventional mineral component and a second component based on powdery slaked lime, wherein said second component based on powdery slaked lime has a specific surface area calculated according to the BET method of less than 12 m2/g, advantageously less than 11 m2/g, in particular less than 10 m2/g, preferably less than 9 m2/g and its uses as well as the enhanced coating or mortar systems comprising an aggregate of the mineral type and the aforesaid composition.