US20110133006A1 - Use of formulations containing glycerol as a dry grinding aid agent of mineral matter - Google Patents

Use of formulations containing glycerol as a dry grinding aid agent of mineral matter Download PDF

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Publication number
US20110133006A1
US20110133006A1 US12/961,921 US96192110A US2011133006A1 US 20110133006 A1 US20110133006 A1 US 20110133006A1 US 96192110 A US96192110 A US 96192110A US 2011133006 A1 US2011133006 A1 US 2011133006A1
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Prior art keywords
glycerol
dry grinding
grinding aid
weight
aid agent
Prior art date
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Abandoned
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US12/961,921
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English (en)
Inventor
Murielle Guillot
Jacques Mongoin
Olivier Guerret
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Coatex SAS
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Coatex SAS
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Publication date
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Priority to US12/961,921 priority Critical patent/US20110133006A1/en
Assigned to COATEX S.A.S. reassignment COATEX S.A.S. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUERRET, OLIVIER, GUILLOT, MURIELLE, MONGOIN, JACQUES
Publication of US20110133006A1 publication Critical patent/US20110133006A1/en
Priority to US14/220,151 priority patent/US9700895B2/en
Abandoned legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02Compounds of alkaline earth metals or magnesium
    • C09C1/021Calcium carbonates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02Compounds of alkaline earth metals or magnesium
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00Compounds of calcium, strontium, or barium
    • C01F11/18Carbonates
    • C01F11/185After-treatment, e.g. grinding, purification, conversion of crystal morphology
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36Compounds of titanium
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40Compounds of aluminium
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/60Optical properties, e.g. expressed in CIELAB-values

Definitions

  • VOCs volatile organic compounds
  • the mineral industry is a large consumer of chemicals. They are used in the various stages of transformation/modification/processing to which mineral matter is subject. Dry grinding of mineral matter, of which natural calcium carbonate represents a special example due to its multiple uses, constitutes one of these steps.
  • first “grinding” operation proper leading to a reduction of the particle size following inter-particle impacts or additional impacts with other materials such as grinding beads. It may also comprise a second step known as “selection”, the aim of which is to grade the particles according to their sizes, and notably to reintroduce into the grinder the particles which have not yet reached the desired fineness.
  • grinding aid agents known as “grinding aid” agents, the function of which is to facilitate the mechanical grinding action as described above. These are introduced during the grinding step, and can be found in the selection step.
  • the second group consists of the weak Brönstedt bases; it notably includes alcanolamines, including TIPA (tri isopropanol amine) and TEA (tri ethanol amine), which are well known to the skilled man in the art. With this regard reference may be made to documents EP 0 510 890 and GB 2 179 268.
  • the Lewis bases constitute the third group of dry grinding aid agents, and contain alcohols. These are ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol and dipropylene glycol.
  • Documents WO 2002/081 573 and US 2003/019 399 describe, for example, the use of diethylene glycol as a dry grinding aid agent in their table 1.
  • Document WO 2005/071 003 makes reference to a polyhydric alcohol, which is ethylene glycol.
  • Document WO 2005/026 252 describes a dry grinding aid agent which may be a triethanolamine, a polypropylene glycol or an ethylene glycol.
  • document WO 2007/138410 proposes to make use of polyalkylene glycols of low molecular weight.
  • glycol-based products are the ones most commonly used for dry grinding of natural calcium carbonate, of which propylene glycol (or monopropylene glycol) is the most widespread.
  • propylene glycol or monopropylene glycol
  • additives are, indeed, renowned for their efficiency in facilitating grinding phenomena, and for their low cost; and, indeed, this is reported in document WO 2007/138410 cited above.
  • glycerol has the equally unexpected advantage that it does not react with CaO and Ca(OH) 2 , concerning which the Inventors consider that they are formed on the surface of the carbonate material, resulting in the fact that this dry grinding agent used according to the invention does not change colour. In fact, it leads to no, or a minimum of, yellowing of the calcium carbonate with which it is ground, whereas a yellowing appears in the case of grinding with monopropylene glycol (MPG).
  • MPG monopropylene glycol
  • specific grinding energy signifies the total quantity of energy expressed in kWh required to grind a tonne of dry calcium carbonate.
  • grinding capacity signifies the mass of dry calcium carbonate ground each hour. It is understood that both these magnitudes are determined, in the context of the invention, “at the limits” of the overall method of dry grinding of calcium carbonate: i.e. by incorporating both the grinding steps proper, followed by that of selection.
  • One of the original aspects of the present invention is precisely that the grading step, which is often overlooked when phenomena of grinding of mineral matter are addressed, is taken into account.
  • granulometry refers to the median diameter d50 ( ⁇ m) determined by a SedigraphTM 5100 device sold by the company MICROMERITICSTM, while the specific area (m 2 /g) s measured according to the BET method well known to the skilled man in the art.
  • dry grinding a grinding in a grinding unit with a quantity of water less than 10% by dry weight of the said material in the said grinding unit.
  • the first object of the invention therefore lies in the use, as a dry grinding aid agent of a mineral matter chosen from among the dolomites, talc, titanium dioxide, alumina, kaolin and calcium carbonate, the function of which is to reduce the specific grinding energy and to increase the grinding capacity, of formulations comprising:
  • the Gardner colour index of the dry grinding aid agent has a value of less than 3 measured according to the Gardner DIN ISO4630/ASTM D 1544 68 method, expressed in a scale from 1 (colourless) to 20 (very dark brown).
  • This use also enables the yellowing of the ground product to be prevented, and notably leads to a ground product with a change of degree of whiteness of less than 1% relative to the initial degree of whiteness according to the TAPPI T452 ISO2470 standard.
  • this use is also characterised in that the said formulations consist of glycerol in the pure form.
  • this use is also characterised in that the said formulations consist of water and glycerol.
  • this use is also characterised in that the said formulations contain 25% to 95%, preferentially 45% to 90%, and very preferentially 75% to 85%, by weight of glycerol relative to their total weight, the remainder consisting of water.
  • this use is also characterised in that the said formulations consist of glycerol with one or more of the said agents, in the aqueous or pure form.
  • this use is also characterised in that the said inorganic acid is a phosphoric acid.
  • this use is also characterised in that the said inorganic salt is a mono-, di- or tri-alkaline salt, and is preferentially a salt of a cation of Group I or II of the Periodic Table of the Elements.
  • this use is also characterised in that the said salt of formic or citric acid is a mono-, di- or tri-alkaline salt, and is preferentially a salt of a cation of Group I or II of the Periodic Table of the Elements.
  • this use is also characterised in that the said organic polyacid has the formula COOH—(CH 2 ) n —COOH, in which n is an integer having a value of between 0 and 7, inclusive, or is a mono- or di-alkaline salt of the organic polyacid of formula COOH—(CH 2 )n-COOH, in which n is equal to an integer having a value of between 0 and 7 inclusive, or is a polymeric organic polyacid of one or more of the following monomers, in the acid form, or in the form which is partially or fully neutralised with one or more cations of Group I or II of the Periodic Table of the Elements: acrylic, methacrylic, maleic or itaconic, and is preferentially an oxalic acid, a pimelic acid or an adipic acid.
  • this use is also characterised in that the said alcanolamine is chosen from among 2-amino-2-methyl-1-propanol, 2-amino-2-ethyl-1,3-propanediol, tri-ethanolamine, N-butyldiethanolamine and tri-iso-propanolamine, whether or not neutralised, and is preferentially chosen from among their forms which are neutralised by means of a formic or citric acid salt, or of an organic polyacid salt.
  • this use is also characterised in that the said polyalkylene glycol polymer is a polyethylene glycol, a polypropylene glycol, or an ethylene-propylene glycol copolymer, whether random or block.
  • this use is also characterised in that the said carbohydrate having a root mean square of the radius of gyration of the said carbohydrate equal to or less than the modal radius of the mineral matter is glucose, fructose, sucrose, starch or cellulose, and is preferentially sucrose.
  • this use is also characterised in that the polyglycerol or polyglycerols are chosen from among di-glycerol, tri-glycerol, tetra-glycerol, penta-glycerol, hexa-glycerol, hepta-glycerol, octa-glycerol, nona-glycerol and deca-glycerol and their blends, and preferentially from among di- and tri-glycerol.
  • this use is also characterised in that the said formulations contain 20% to 95% by weight of glycerol, 1% to 50% by weight of the said agent and 0% to 65% by weight of water, preferentially 30% to 90% by weight of glycerol, 10% to 45% by weight of the said agent and 0% to 60% by weight of water, and preferentially 35% to 75% by weight of glycerol, 30% to 40% by weight of the said agent and 5% to 50% by weight of water, relative to their total weight, where the sum of the percentages by weight of glycerol, of the said agent and of water are, in each case, equal to 100%.
  • this use is also characterised in that the said formulations consist of one or more polyglycerols in the pure form.
  • this use is also characterised in that the polyglycerol or polyglycerols are chosen from among di-glycerol, tri-glycerol, tetra-glycerol, penta-glycerol, hexa-glycerol, hepta-glycerol, octa-glycerol, nona-glycerol and deca-glycerol and their blends, and preferentially from among di- and tri-glycerol.
  • this use is also characterised in that the said formulations consist of water and one or more polyglycerols.
  • this use is also characterised in that the said formulations contain 25% to 95%, preferentially 45% to 90%, and very preferentially 75% to 85%, by weight of polyglycerols relative to their total weight, the remainder consisting of water.
  • this use is also characterised in that the polyglycerol or polyglycerols are chosen from among di-glycerol, tri-glycerol, tetra-glycerol, penta-glycerol, hexa-glycerol, hepta-glycerol, octa-glycerol, nona-glycerol and deca-glycerol and their blends, and preferentially from among di- and tri-glycerol.
  • this use is also characterised in that use is made of 100 to 5,000 ppm, and preferentially 500 to 3,000 ppm, of glycerol or polyglycerol, relative to the dry weight of the said mineral matter.
  • this use is also characterised in that use is made of between 0.1 and 1 mg, and preferentially between 0.2 and 0.6 mg, total dry equivalent, of the said glycerol or polyglycerol and every possible agent for each m 2 of mineral matter.
  • this use is also characterised in that the said mineral matter is ground as far as an average diameter, measured by a SedigraphTM 5100, of between 0.5 and 10 ⁇ m, and preferentially between 1 ⁇ m and 5 ⁇ m.
  • this use is also characterised in that the said mineral matter is ground until a percentage by weight of particles having a diameter of less than 2 ⁇ m, measured by a SedigraphTM 5100, of between 20% and 90%, and preferentially between 30% and 60%, is obtained.
  • this use is also characterised in that the said mineral matter is a natural calcium carbonate.
  • This example is relative to the dry grinding of a natural calcium carbonate which is a Carrara marble.
  • the grinding is undertaken by means of an installation fitted with a ball-mill and a classifier.
  • the Carrara marble was introduced into a ball-mill of capacity 5.7 m 3 using 8 tonnes of CylpebTM iron grinding beads, in the form of cylinders, having an average diameter of 16 mm, with a view to obtaining a ground material:
  • the dry grinding is undertaken continuously.
  • the ground material When it leaves the grinding chamber the ground material is conveyed to a classifier of the SELEXTM 6S type. Its rotational speed and its air flow rate are set respectively at 5,200 revolutions/min. and 6,000 m 3 /h, so as to select that portion of particles having an average diameter less than or equal to a given value, and which will constitute the finished product; the portion of remaining particles having an average diameter greater than this value is reintroduced into the ball-mill.
  • a classifier of the SELEXTM 6S type Its rotational speed and its air flow rate are set respectively at 5,200 revolutions/min. and 6,000 m 3 /h, so as to select that portion of particles having an average diameter less than or equal to a given value, and which will constitute the finished product; the portion of remaining particles having an average diameter greater than this value is reintroduced into the ball-mill.
  • the grinding is undertaken in such a way that the selector's feed rate is always equal to 4 tonnes/h, and that the quantity of fresh product injected into the ball-mill matches the quantity of selected product leaving the system.
  • the system After starting the system, and before recording the results which are indicated below, the system is operated until stable values are obtained for the quantity of ground material, the grinding capacity and the grinding energy.
  • the dry grinding aid agents were introduced into the grinding system in the area of the point where the fresh material is introduced, in such a way as to maintain a constant quantity of grinding aid agent relative to the fresh material introduced for grinding.
  • the grinding aid agents referenced MPG consist of an aqueous solution containing 75% (by mass) of monopropylene glycol, and were obtained from the company FLUKATM.
  • the grinding aid agents referenced EG consist of ethylene glycol, and were obtained from the company FLUKATM.
  • the grinding aid agents referenced PEG consist of an aqueous solution containing 75% (by mass) of polyethylene glycol of molecular mass by weight equal to 600 g/mole and were obtained from the company FLUKATM.
  • Glycerol designates an aqueous solution containing 75% (by mass) of glycerol.
  • Glycerol+H3PO4 designates an aqueous solution containing 75% (by mass) of a blend (99/1 by mass) of glycerol/phosphoric acid.
  • Each of the tests uses 2,000 ppm of active product (or 2,667 ppm of each aqueous solution).
  • the Gardner yellow index of the grinding agent is measured according to the DIN ISO 4630/ASTM D 1544 68 standard, and the value is expressed in a scale ranging from 1 (colourless) to 20 (very dark brown), where the value 1 to 2 signifies almost colourless, the value 5 signifies a yellow colour 5, while the value 11 signifies a brown colour.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Disintegrating Or Milling (AREA)
  • Polyethers (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US12/961,921 2009-12-07 2010-12-07 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter Abandoned US20110133006A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/961,921 US20110133006A1 (en) 2009-12-07 2010-12-07 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter
US14/220,151 US9700895B2 (en) 2009-12-07 2014-03-20 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0958685 2009-12-07
FR0958685A FR2953426B1 (fr) 2009-12-07 2009-12-07 Utilisation de formulations contenant du glycerol comme agent d'aide au broyage a sec de matieres minerales.
US28645509P 2009-12-15 2009-12-15
US12/961,921 US20110133006A1 (en) 2009-12-07 2010-12-07 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter

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US20110133006A1 true US20110133006A1 (en) 2011-06-09

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US12/961,921 Abandoned US20110133006A1 (en) 2009-12-07 2010-12-07 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter
US14/220,151 Active 2032-06-08 US9700895B2 (en) 2009-12-07 2014-03-20 Use of formulations containing glycerol as a dry grinding aid agent of mineral matter

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US (2) US20110133006A1 (zh)
EP (1) EP2510059B1 (zh)
JP (1) JP2013512774A (zh)
KR (1) KR20120088881A (zh)
CN (1) CN102639648B (zh)
AU (1) AU2010329605A1 (zh)
BR (1) BR112012013749A2 (zh)
CA (1) CA2782282A1 (zh)
FR (1) FR2953426B1 (zh)
RU (1) RU2588631C2 (zh)
WO (1) WO2011070416A1 (zh)

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CN102653636A (zh) * 2012-04-10 2012-09-05 池州版筑科技有限公司 一种助磨改性剂及其制备方法
FR3002162A1 (fr) * 2013-02-18 2014-08-22 Chryso Additif de broyage pour le broyage a sec d'un liant hydraulique
US9163147B2 (en) 2009-12-24 2015-10-20 Coatex S.A.S. Use of glycerol as an agent to improve the self-dispersing properties of a mineral material to be added to an aqueous composition
US11014858B2 (en) 2016-03-30 2021-05-25 Gcp Applied Technologies Inc. Mineral grinding

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FR3017872B1 (fr) 2014-02-21 2016-05-20 Coatex Sas Utilisation de copolymeres de styrene et d'anhydride maleique pour preparer des particules de matiere minerale
WO2015128021A1 (de) 2014-02-26 2015-09-03 Basf Se Verfahren zur herstellung von polyaminen
KR101459587B1 (ko) * 2014-04-01 2014-11-10 유동우 광물의 미분쇄용 분쇄조제 및 이를 이용한 분쇄방법
CA2948956A1 (en) 2015-12-15 2017-06-15 Rohm And Haas Company Phenyl glycidyl ether adduct of maltodextrin
CA2948965A1 (en) 2015-12-17 2017-06-17 Dow Global Technologies Llc Di- or tristyrylphenol monogycidyl ether adduct of maltodextrin
CA2948961C (en) 2015-12-28 2023-12-05 Dow Global Technologies Llc Polyether-urethane-urea additives for block resistance and open time
AU2017229008A1 (en) 2016-03-11 2018-10-04 Dow Global Technologies Llc Coating formulation with an open time additive
BR112018075197B1 (pt) 2016-07-05 2022-07-12 Dow Global Technologies Llc Composição, e, tinta látex
CN106380110B (zh) * 2016-09-05 2018-06-26 济南大学 一种氧化石墨烯改性水泥助磨剂及其制备方法
CN111748221A (zh) * 2020-07-07 2020-10-09 山东齐润源新材料科技有限公司 一种滑石粉的造粒方法
WO2022200284A1 (en) * 2021-03-26 2022-09-29 Sika Technology Ag Dry grinding of clay mineral, ground clay mineral, and its use in construction materials

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CN102639648B (zh) 2015-05-27
CA2782282A1 (fr) 2011-06-16
KR20120088881A (ko) 2012-08-08
US9700895B2 (en) 2017-07-11
AU2010329605A1 (en) 2012-07-26
EP2510059B1 (fr) 2019-03-20
BR112012013749A2 (pt) 2020-08-25
JP2013512774A (ja) 2013-04-18
RU2588631C2 (ru) 2016-07-10
FR2953426B1 (fr) 2014-10-03
CN102639648A (zh) 2012-08-15
US20140205530A1 (en) 2014-07-24
EP2510059A1 (fr) 2012-10-17
FR2953426A1 (fr) 2011-06-10
WO2011070416A1 (fr) 2011-06-16

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