EP1572589A2 - Carbonate de calcium ultra-sec - Google Patents
Carbonate de calcium ultra-secInfo
- Publication number
- EP1572589A2 EP1572589A2 EP03789124A EP03789124A EP1572589A2 EP 1572589 A2 EP1572589 A2 EP 1572589A2 EP 03789124 A EP03789124 A EP 03789124A EP 03789124 A EP03789124 A EP 03789124A EP 1572589 A2 EP1572589 A2 EP 1572589A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- calcium carbonate
- ultra
- dry calcium
- microwaves
- carbonate particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Definitions
- the invention relates to an ultra-dry calcium carbonate.
- Calcium carbonate is produced by reacting an aqueous calcium hydroxide suspension with CO 2 or a gas containing carbon dioxide or by intensive grinding of natural calcium carbonate. The product is dewatered and dried in a known manner.
- Calcium carbonate is used e.g. B. in the production of paper, paints, sealants, adhesives, polymers, printing inks, rubber, etc. It is used as a functional filler with pigment properties.
- dewatering is carried out by filtration or centrifugation and then drying is carried out with the aid of e.g. B. belt dryers, fluidized bed dryers, mill dryers etc.
- B. belt dryers e.g. B. belt dryers, fluidized bed dryers, mill dryers etc.
- the disadvantage of this method is that the calcium carbonate is initially dried satisfactorily, but absorbs moisture again from the surrounding air during cooling. Depending on the fineness or rather the specific surface, this moisture can be up to 3% by weight.
- the object of the invention is to dry conventionally produced calcium carbonate completely by post-treatment with microwaves and thus to prepare it for use.
- Microwaves are electromagnetic waves of different frequencies. Common frequencies are 915 MHz and 2.45 Ghz.
- heat is generated by the direct conversion of electromagnetic energy into the kinetic energy of the molecules, ie in the moist material itself.
- the conversion of electromagnetic energy into thermal energy takes place due to the electromagnetic properties of the materials to be heated. Whether and to what extent a material can be heated or dried using microwaves depends on its molecular structure.
- Polar molecules ie molecules with different charge ranges, e.g. B. water, can be heated well with microwaves.
- the polar molecule is set into rotation by the high-frequency alternating field of the microwaves and converts the electromagnetic energy into heat. Since every molecule converts heat and the microwaves can penetrate deeply depending on the material, the entire volume is heated. This is a significant advantage over conventional heating or drying, in which the heat can only penetrate the body through the surface of the material.
- the penetration depth is calculated with:
- the temperature curve of microwave heating is inverse to that of conventional heating. This inverse temperature profile is advantageous for microwave drying because a high pressure builds up inside the material, which pushes the water to the surface. This water evaporates on the surface, which keeps it constantly moist until the water has been almost completely removed from the inside. Only then does the surface begin to dry.
- Powders or granules are preferably dried in microwave rotary kilns.
- the material is guided through the heating zone in a rotating tube and heated or dried by the microwaves.
- the system can be operated under vacuum, protective gas or in an air atmosphere.
- the dumping height can be up to 20 cm depending on the design of the device. A maximum dumping height of 10 cm has proven to be advantageous for calcium carbonate. Since only residual moisture has to be removed with this apparatus, very high outputs are not required. A few kW are sufficient, but 25 kW to over 100 kW can be used.
- the calcium carbonate dried according to the invention can be used as a rheology-controlling additive e.g. B. in sealants or adhesives.
- the ultra-dry calcium carbonate can e.g. B. in 1-component or 2-component polyurethane sealants, in silicone sealants or modified silicone sealants, especially MS polymer sealants can be used as an additive.
- the belt system drying is a static drying, d. H. the product is not subject to mechanical stress.
- a temperature gradient directed towards the surface i. H. a higher temperature inside than on the surface and an associated higher partial pressure that transports the liquid to be evaporated to the surface.
- the partial pressure generated by the microwaves in the core accelerates the diffusion processes.
- Pre-dried CaC0 3 was dried on a conveyor belt system in a microwave channel (max. Power: 6 kW / 2450 MHz) with an active length of 2 m.
- Tables 1 and 2 show the drying results under different conditions:
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Drying Of Solid Materials (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Material Composition (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10257696A DE10257696A1 (de) | 2002-12-11 | 2002-12-11 | Ultratrockenes Calciumcarbonat |
DE10257696 | 2002-12-11 | ||
PCT/EP2003/013663 WO2004052784A2 (fr) | 2002-12-11 | 2003-12-04 | Carbonate de calcium ultra-sec |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1572589A2 true EP1572589A2 (fr) | 2005-09-14 |
Family
ID=32336181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03789124A Withdrawn EP1572589A2 (fr) | 2002-12-11 | 2003-12-04 | Carbonate de calcium ultra-sec |
Country Status (18)
Country | Link |
---|---|
US (1) | US20050276897A1 (fr) |
EP (1) | EP1572589A2 (fr) |
JP (1) | JP2006509704A (fr) |
KR (1) | KR20050088425A (fr) |
CN (1) | CN100448777C (fr) |
AU (1) | AU2003293758A1 (fr) |
BR (1) | BR0317136A (fr) |
CA (1) | CA2509394A1 (fr) |
DE (1) | DE10257696A1 (fr) |
HK (1) | HK1081939A1 (fr) |
HR (1) | HRP20050521A2 (fr) |
IL (1) | IL169086A0 (fr) |
MX (1) | MXPA05006233A (fr) |
PL (1) | PL377383A1 (fr) |
RS (1) | RS20050448A (fr) |
RU (1) | RU2347164C2 (fr) |
WO (1) | WO2004052784A2 (fr) |
ZA (1) | ZA200504655B (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150113210A (ko) * | 2004-12-22 | 2015-10-07 | 솔베이(소시에떼아노님) | 알칼리 토금속 카르보네이트의 내산성 입자 |
ATE501090T1 (de) * | 2005-11-29 | 2011-03-15 | Trading Engineering Technologies Llc | Trockner und verfahren zur trocknung von gefälltem calciumcarbonat |
EP1795502A1 (fr) * | 2005-12-12 | 2007-06-13 | SOLVAY (Société Anonyme) | Particules de carbonate de calcium précipité, leur procédé de préparation et leur utillisation comme charges |
DE102007018975A1 (de) * | 2007-04-07 | 2008-10-09 | Schaefer Kalk Gmbh & Co. Kg | Kugelförmige Calciumcarbonat-Teilchen |
TWI510432B (zh) * | 2010-04-09 | 2015-12-01 | Omya Int Ag | 經表面改質碳酸鈣在黏著劑、密封劑及/或填隙劑中之用途 |
JP5964012B2 (ja) * | 2011-01-17 | 2016-08-03 | 丸尾カルシウム株式会社 | 表面処理重質炭酸カルシウム、その製造方法、及び該炭酸カルシウムを配合した樹脂組成物 |
ES2549029T3 (es) | 2011-05-16 | 2015-10-22 | Omya International Ag | Método para la producción de carbonato de calcio precipitado a partir de desecho de la molienda de pulpa |
PL2626388T3 (pl) | 2012-02-09 | 2017-08-31 | Omya International Ag | Kompozycja i sposób regulacji zwilżalności powierzchni |
WO2014014011A1 (fr) * | 2012-07-18 | 2014-01-23 | 丸尾カルシウム株式会社 | Carbonate de calcium lourd, son procédé de production, et composition de résine le contenant |
EP2982247A1 (fr) * | 2014-08-07 | 2016-02-10 | Omya International AG | Produit antiseptique, son procédé de préparation et son utilisation |
CN104448938A (zh) * | 2014-11-18 | 2015-03-25 | 江苏群鑫粉体材料有限公司 | 胶粘剂用超细活性重质碳酸钙的生产方法 |
KR101645896B1 (ko) * | 2015-08-27 | 2016-08-04 | 정충의 | Ca계 폐기물을 이용 이산화탄소 제거 및 부산물 처리방법 |
KR101645895B1 (ko) * | 2015-08-27 | 2016-08-04 | 정충의 | Ca계 폐기물과 소석회를 이용 이산화탄소 제거 및 부산물 처리방법 |
KR101658509B1 (ko) * | 2015-08-27 | 2016-09-21 | 정충의 | 소석회를 이용 이산화탄소 제거 및 부산물 처리방법 |
EP3192839B1 (fr) * | 2016-01-14 | 2023-03-08 | Omya International AG | Traitement d'alcoxysilane d'un matériau comprenant du carbonate de calcium |
KR102155067B1 (ko) * | 2018-11-30 | 2020-09-11 | 한국생산기술연구원 | 이차원 탄산칼슘 나노시트의 제조방법 및 그에 따라 제조된 이차원 탄산칼슘 나노시트 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545093A (en) * | 1968-12-23 | 1970-12-08 | Exxon Research Engineering Co | Microwave vibrating resonating cavity and drying process |
US4244933A (en) * | 1978-04-05 | 1981-01-13 | Shiraishi Kogyo Kaisha, Ltd. | Calcium carbonate particles and processes for preparing same |
US4427811A (en) * | 1981-12-30 | 1984-01-24 | Dow Corning Corporation | Silicone elastomeric emulsion having improved shelf life |
FR2570721B1 (fr) * | 1984-09-25 | 1988-01-08 | Condat Papeteries | Procede permettant la valorisation des boues de chaux dans le cycle de caustification du procede kraft |
GB8724959D0 (en) * | 1987-10-24 | 1987-11-25 | Dow Corning Sa | Filled compositions |
US5064893A (en) * | 1990-03-08 | 1991-11-12 | Rexene Corporation | Flexible label film from polyethylene and calcium carbonate-polymer mixture |
WO1993003834A1 (fr) * | 1991-08-20 | 1993-03-04 | Mann, Alexander | Traitement par ondes electromagnetiques de granules humides |
JP2675465B2 (ja) * | 1991-11-01 | 1997-11-12 | 工業技術院長 | 含水炭酸カルシウムおよびその製造方法 |
US5616647A (en) * | 1992-11-25 | 1997-04-01 | General Electric Company | One part room temperature vulcanizing composition having both a high rate of extrusion and low sag |
JPH06234148A (ja) * | 1992-11-25 | 1994-08-23 | General Electric Co <Ge> | 高い押出速度及び低いたれの両特性をもつ一液型室温硬化性組成物 |
JP3295673B2 (ja) * | 1993-03-26 | 2002-06-24 | 同和鉄粉工業株式会社 | マイクロ波利用の鉄粉製造法 |
US5378319A (en) * | 1993-05-07 | 1995-01-03 | Tran Industrial Research Inc. | Lime mud calcining using dielectric hysteresis heating |
ES2160858T3 (es) * | 1996-03-13 | 2001-11-16 | Omya Ag | Revestimiento. |
CN1087763C (zh) * | 1998-09-11 | 2002-07-17 | 黄万东 | 双组分聚氨酯建筑密封膏及生产工艺 |
US6383324B1 (en) * | 1999-11-24 | 2002-05-07 | Morton International, Inc. | Polysulfide-based polyurethane sealant for insulating glass |
EP1118636A1 (fr) * | 2000-01-20 | 2001-07-25 | SOLVAY (Société Anonyme) | Compositions à base de polymère de l'caprolactone chargées, procédé pour leur préparation et articles à base de ces compositions |
CN1170901C (zh) * | 2000-12-13 | 2004-10-13 | 北京市建筑材料科学研究院 | 无溶剂单组分聚氨酯防水涂料的制备方法 |
ATE288878T1 (de) * | 2001-10-31 | 2005-02-15 | Council Scient Ind Res | Verfahren zur erzeugung von feinteiligem calciumkarbonat aus calciumkarbonatreichen industriellen nebenprodukten |
-
2002
- 2002-12-11 DE DE10257696A patent/DE10257696A1/de not_active Withdrawn
-
2003
- 2003-12-04 JP JP2004557985A patent/JP2006509704A/ja active Pending
- 2003-12-04 KR KR1020057010635A patent/KR20050088425A/ko not_active Application Discontinuation
- 2003-12-04 MX MXPA05006233A patent/MXPA05006233A/es unknown
- 2003-12-04 RU RU2005121534/15A patent/RU2347164C2/ru active
- 2003-12-04 CN CNB2003801056220A patent/CN100448777C/zh not_active Expired - Fee Related
- 2003-12-04 WO PCT/EP2003/013663 patent/WO2004052784A2/fr active Application Filing
- 2003-12-04 AU AU2003293758A patent/AU2003293758A1/en not_active Abandoned
- 2003-12-04 RS YUP-2005/0448A patent/RS20050448A/sr unknown
- 2003-12-04 BR BR0317136-1A patent/BR0317136A/pt not_active Application Discontinuation
- 2003-12-04 EP EP03789124A patent/EP1572589A2/fr not_active Withdrawn
- 2003-12-04 PL PL377383A patent/PL377383A1/pl not_active Application Discontinuation
- 2003-12-04 CA CA002509394A patent/CA2509394A1/fr not_active Abandoned
-
2005
- 2005-06-07 ZA ZA200504655A patent/ZA200504655B/en unknown
- 2005-06-09 IL IL169086A patent/IL169086A0/en unknown
- 2005-06-09 HR HR20050521A patent/HRP20050521A2/xx not_active Application Discontinuation
- 2005-06-10 US US11/149,296 patent/US20050276897A1/en not_active Abandoned
-
2006
- 2006-02-20 HK HK06102215.9A patent/HK1081939A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004052784A2 * |
Also Published As
Publication number | Publication date |
---|---|
CA2509394A1 (fr) | 2005-06-09 |
AU2003293758A1 (en) | 2004-06-30 |
DE10257696A1 (de) | 2004-06-24 |
CN100448777C (zh) | 2009-01-07 |
PL377383A1 (pl) | 2006-02-06 |
BR0317136A (pt) | 2005-10-25 |
RU2347164C2 (ru) | 2009-02-20 |
AU2003293758A8 (en) | 2004-06-30 |
HK1081939A1 (en) | 2006-05-26 |
ZA200504655B (en) | 2006-04-26 |
JP2006509704A (ja) | 2006-03-23 |
MXPA05006233A (es) | 2005-12-05 |
WO2004052784A2 (fr) | 2004-06-24 |
RU2005121534A (ru) | 2006-01-20 |
HRP20050521A2 (en) | 2005-08-31 |
DE10257696A9 (de) | 2005-07-28 |
CN1723173A (zh) | 2006-01-18 |
WO2004052784A3 (fr) | 2004-11-18 |
RS20050448A (en) | 2007-08-03 |
US20050276897A1 (en) | 2005-12-15 |
KR20050088425A (ko) | 2005-09-06 |
IL169086A0 (en) | 2009-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1572589A2 (fr) | Carbonate de calcium ultra-sec | |
US11332371B2 (en) | Methods for creation of sub-micron biocarbon materials from biomass and their fields of application | |
Seto et al. | Lignin derived nano-biocarbon and its deposition on polyurethane foam for wastewater dye adsorption | |
EP1404719B1 (fr) | Superabsorbants, leur procédé de production et leur utilisation | |
Fierro et al. | Influence of the demineralisation on the chemical activation of Kraft lignin with orthophosphoric acid | |
EP1200343B1 (fr) | Procede de production de charbon actif fa onne | |
Suo et al. | A carbonised sieve-like corn straw cellulose–graphene oxide composite for organophosphorus pesticide removal | |
Dong et al. | Physicochemical properties of pectin extracted from navel orange peel dried by vacuum microwave | |
Ciolacu et al. | New green hydrogels based on lignin | |
Astuti et al. | Application of kepok banana peel activated carbon prepared by conventional and microwave heating for malachite green adsorption | |
EP1183211A1 (fr) | Procede de production d'adsorbants moules hautement performants | |
Adams et al. | Tunable carbon quantum dots from starch via microwave assisted carbonization | |
Astuti et al. | Preparation of activated carbon from cassava peel by microwave-induced H3PO4 activation for naphthol blue-black removal | |
WO2020169809A2 (fr) | Procédé pour réduire l'odeur de matières carbonées particulaires | |
Mikova et al. | Polyphenols of wood bark: organic precursors for the production of polymer aerogels | |
CN114212812A (zh) | 一种用于pvc封边条的纳米碳酸钙的制备方法 | |
Corciova et al. | Biosynthesis of silver nanoparticles using licorice extract and evaluation of their antioxidant activity | |
EP3890862A1 (fr) | Matières carbonées particulaires et procédé pour les séparer | |
CN113860347B (zh) | 一种超大粒径、稳定可控的菜椒状碳酸钙颗粒的制备方法 | |
DE10003660A1 (de) | Verfahren zur Herstellung von Formaktivkohle | |
Franklin et al. | Substantial performance of silane surface treated 1, 4 butane diol/hydroxyapatite biocomposite hydrogels for dye removal applications | |
Krokida et al. | Quality Characteristics of Dried Aloe | |
Shan et al. | Effects of the antioxidant CA ratio on the properties of UV-curable waterborne polyurethane for application in damping coating | |
EP4334396A1 (fr) | Pigment noir biogène, son procédé de production et son utilisation | |
WO2021223789A1 (fr) | Pigment noir biogène, procédé de production et utilisation associés |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050711 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DILLENBURG, HELMUT Inventor name: NOVER, CHRISTOPH |
|
17Q | First examination report despatched |
Effective date: 20080414 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100518 |