CN105883879A - Preparation method of nano-coated composite calcium carbonate - Google Patents
Preparation method of nano-coated composite calcium carbonate Download PDFInfo
- Publication number
- CN105883879A CN105883879A CN201610218682.2A CN201610218682A CN105883879A CN 105883879 A CN105883879 A CN 105883879A CN 201610218682 A CN201610218682 A CN 201610218682A CN 105883879 A CN105883879 A CN 105883879A
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- Prior art keywords
- calcium carbonate
- preparation
- nano
- product
- coating compound
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Classifications
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- 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
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a preparation method of nano-coated composite calcium carbonate. The preparation method comprises steps as follows: (1), qualified limestone is placed in a calcining furnace, superheated steam at 3.6-3.9 Mpa is introduced, intensity of pressure in the calcining furnace is reduced to 2.3-3.1 Mpa by a regulating valve, and the limestone is heated to be slaked; (2), impurity particles of a calcined substance are removed through multi-stage separation, a calcium hydroxide suspension liquid is obtained and diluted to 1.5-4.5 mol/L; (3), sufficient carbon monoxide gas is introduced, and a crystal forming agent is added until complete carbonization is realized; (4), nano calcium carbonate slurry is mixed with a product obtained in the step (3), a mixture is subjected to ball milling, and the particle size of a product is 0.05-5 mu m; (5), the product obtained in the step (4) is subjected to dehydration, drying and surface treatment, and then the nano-coated composite calcium carbonate is obtained. The preparation method of the nano-coated composite calcium carbonate has the advantages as follows: the selection of the crystal forming agent better meets the overall technological process, an exact crystal control agent is selected to control the morphology of calcium carbonate particles, and a final product has excellent quality and high finished product ratio, produces small environmental pollution and is better in technological effect.
Description
Technical field
The present invention relates to the preparation method of a kind of nanometer coating compound calcium carbonate, belong to the carbonic acid of calcium
The preparing technical field of salt.
Background technology
Calcium carbonate is a kind of inorganic compound, CaCO3Be commonly called as: lime stone, limestone, stone powder,
Marble etc..Main component: calcite, is a kind of compound, and chemical formula is CaCO3, in
Neutrality, is substantially insoluble in, and is dissolved in hydrochloric acid.It is Common materials on the earth, is present in graupel
In the rocks such as stone, calcite, Chalk, limestone, marble, Tufa, it also it is animal bone
Bone or the main component of shell.Calcium carbonate is important construction material, and industrial purposes is the widest.
Calcium carbonate is combined by calcium ion and carbanion and generates, thus be calcium salt be also carbonic acid
Salt.
Summary of the invention
The technical problem to be solved in the present invention is to provide the system of a kind of nanometer coating compound calcium carbonate
Preparation Method.
The present invention is achieved through the following technical solutions.
A kind of preparation method of nanometer coating compound calcium carbonate, step includes:
(1) limestone qualified for quality is inserted in calcining furnace, be passed through 3.6-3.9Mpa overheated
Steam, the pressure in calcining furnace is reduced to 2.3～3.1MPa, carries out heating and make stone by regulation valve
Lime stone digests；
(2) multiple stage separation removes the impurity particle of calcined material, obtains calcium hydroxide suspension also
It is diluted to 1.5-4.5mol/L；
(3) it is passed through enough CO (carbon monoxide converter) gas, and adds into brilliant agent until carbonization is complete,
Brilliant agent is become to include 10%-20% ethylene glycol, OPEO by mass percentage
5%-10%, dibenzyl cumenyl phenol 1%-5%, double, tributyl phenol polyoxyethylene ether
1%-5%, gelatin 30%-50%, triethanolamine 10%-20%, glycerin polyoxyethylene ether polyoxy
Propylene ether fatty acid ester 10%-15%, sodium alklyarylsulfonate 10%-15%；
(4) product that nano-calcium carbonate slurry obtains with (3) is mixed, use ball milling system, grain
Footpath is in 0.05～5 μm；
(5) product that (4) obtain was entered dehydration, be dried, surface process after obtain nanometer
Coating compound calcium carbonate.
Further, (1) heating and temperature control is at 800 DEG C-1200 DEG C.
Further, the product that (1) is first obtained before multiple stage separation removes calcined material by (2)
Pulverize.
Further, the pulverizing of (2): the float (1) obtained sends into high-speed cutting powder
Broken machine, by rotational speed regulation to 6000-7000 rev/min, is crushed to particle diameter in 50 μm
Below.
Further, (2) multiple stage separation uses the operation of multistage rotary filter press.
Beneficial effects of the present invention:
The selection becoming brilliant agent is more fitted whole technological process, got to the crystallization control that selection is definite
Preparation controls the effect of calcium carbonate granule pattern, it is thus achieved that end product quality is outstanding, yield rate
Height, environmental pollution impact simultaneously is little, and technological effect is preferable.
Detailed description of the invention
Below according to embodiment, the present invention is described in further detail.
Case study on implementation 1:
The preparation method of nanometer coating compound calcium carbonate, step includes:
(1) limestone qualified for quality is inserted in calcining furnace, is passed through 3.7Mpa superheated steam,
Pressure in calcining furnace is reduced to 2.5MPa by regulation valve, carries out heating and makes lime carbonate slaking,
Heating and temperature control is at 800 DEG C-1200 DEG C；
(2) product first (1) obtained is pulverized, and the float (1) obtained sends into height
Speed cutting mill, by rotational speed regulation to 6000-7000 rev/min, is crushed to particle diameter and is existed
Below 50 μm, multistage rotary filter press removes the impurity particle of calcined material, obtains calcium hydroxide and hangs
Supernatant liquid is also diluted to 4.0mol/L；
(3) it is passed through enough CO (carbon monoxide converter) gas, and adds into brilliant agent until carbonization is complete,
Brilliant agent is become to include 15% ethylene glycol, OPEO 8%, dibenzyl by mass percentage
Base cumenyl phenol 3%, double, tributyl phenol polyoxyethylene ether 4%, gelatin 33%, three second
Hydramine 15%, glycerin polyoxyethylene ether polyoxypropylene ether fatty acid ester 10%, alkylaryl sulphur
Acid sodium 12%；
(4) product that nano-calcium carbonate slurry obtains with (3) is mixed, use ball milling system, grain
Footpath is in 0.05～5 μm；
(5) product that (3) obtain was entered dehydration, be dried, surface process after obtain nanometer
Coating compound calcium carbonate.
Case study on implementation 2:
The preparation method of nanometer coating compound calcium carbonate, step includes:
(1) limestone qualified for quality is inserted in calcining furnace, is passed through 3.8Mpa superheated steam,
Pressure in calcining furnace is reduced to 3.0MPa by regulation valve, carries out heating and makes lime carbonate slaking,
Heating and temperature control is at 800 DEG C-1200 DEG C；
(2) product first (1) obtained is pulverized, and the float (1) obtained sends into height
Speed cutting mill, by rotational speed regulation to 6000-7000 rev/min, is crushed to particle diameter and is existed
Below 50 μm, multistage rotary filter press removes the impurity particle of calcined material, obtains calcium hydroxide and hangs
Supernatant liquid is also diluted to 4.0mol/L；
(3) it is passed through enough CO (carbon monoxide converter) gas, and adds into brilliant agent until carbonization is complete,
Brilliant agent is become to include 13% ethylene glycol, OPEO 10%, two by mass percentage
Benzyl cumenyl phenol 5%, double, tributyl phenol polyoxyethylene ether 4%, gelatin 31%, three
Ethanolamine 10%, glycerin polyoxyethylene ether polyoxypropylene ether fatty acid ester 15%, alkylaryl
Sodium sulfonate 12%；
(4) product that nano-calcium carbonate slurry obtains with (3) is mixed, use ball milling system, grain
Footpath is in 0.05～5 μm；
(5) product that (3) obtain was entered dehydration, be dried, surface process after obtain nanometer
Coating compound calcium carbonate.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow ripe
The personage knowing this art will appreciate that present invention and is carried out, and can not limit with this
Protection scope of the present invention processed.All equivalences made according to spirit of the invention change or repair
Decorations, all should contain within the scope of the present invention.
Claims (5)
1. the preparation method of a nanometer coating compound calcium carbonate, it is characterised in that step includes:
(1) limestone qualified for quality is inserted in calcining furnace, be passed through 3.6-3.9Mpa overheated
Steam, the pressure in calcining furnace is reduced to 2.3～3.1MPa, carries out heating and make stone by regulation valve
Lime stone digests；
(2) multiple stage separation removes the impurity particle of calcined material, obtains calcium hydroxide suspension also
It is diluted to 1.5-4.5mol/L；
(3) it is passed through enough CO (carbon monoxide converter) gas, and adds into brilliant agent until carbonization is complete,
Brilliant agent is become to include 10%-20% ethylene glycol, OPEO by mass percentage
5%-10%, dibenzyl cumenyl phenol 1%-5%, double, tributyl phenol polyoxyethylene ether
1%-5%, gelatin 30%-50%, triethanolamine 10%-20%, glycerin polyoxyethylene ether polyoxy
Propylene ether fatty acid ester 10%-15%, sodium alklyarylsulfonate 10%-15%；
(4) product that nano-calcium carbonate slurry obtains with (3) is mixed, use ball milling system, grain
Footpath is in 0.05～5 μm；
(5) product that (4) obtain was entered dehydration, be dried, surface process after obtain nanometer
Coating compound calcium carbonate.
The preparation method of nanometer coating compound calcium carbonate the most according to claim 1, its feature
Being, (1) heating and temperature control is at 800 DEG C-1200 DEG C.
The preparation method of nanometer coating compound calcium carbonate the most according to claim 1, its feature
Being, the product that (1) is first obtained before multiple stage separation removes calcined material by (2) is pulverized.
The preparation method of nanometer coating compound calcium carbonate the most according to claim 3, its feature
It is, the pulverizing of (2): the float (1) obtained sends into high-speed cutting pulverizer, will
Rotational speed regulation, to 6000-7000 rev/min, is crushed to particle diameter below 50 μm.
The preparation method of nanometer coating compound calcium carbonate the most according to claim 1, its feature
Being, (2) multiple stage separation uses the operation of multistage rotary filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610218682.2A CN105883879A (en) | 2016-04-07 | 2016-04-07 | Preparation method of nano-coated composite calcium carbonate |
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| CN201610218682.2A CN105883879A (en) | 2016-04-07 | 2016-04-07 | Preparation method of nano-coated composite calcium carbonate |
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| CN201610218682.2A Pending CN105883879A (en) | 2016-04-07 | 2016-04-07 | Preparation method of nano-coated composite calcium carbonate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459841A (en) * | 2017-08-10 | 2017-12-12 | 青阳县永诚钙业有限责任公司 | A kind of preparation method of modified purity calcium carbonate |
| CN112356533A (en) * | 2020-09-11 | 2021-02-12 | 临沂斯科瑞聚氨酯材料有限公司 | Roof waterproof flexible material |
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| CN101570343A (en) * | 2009-06-11 | 2009-11-04 | 福建省万旗非金属材料有限公司 | Method for preparing nanometer calcium carbonate special for water soluble ink by wet method |
| CN101774623A (en) * | 2010-01-19 | 2010-07-14 | 上海卓越纳米新材料股份有限公司 | Industrial preparation method of rice-shaped ultra-fine activated calcium carbonate |
| CN101967308A (en) * | 2010-07-14 | 2011-02-09 | 山东海泽纳米材料有限公司 | Method for preparing nano calcium carbonate for high-temperature resistant polymers |
| CN102020878A (en) * | 2009-09-15 | 2011-04-20 | 上海华明高技术（集团）有限公司 | Method for preparing superfine calcium carbonate compound particles |
| CN103663527A (en) * | 2012-09-25 | 2014-03-26 | 上海华明高技术（集团）有限公司 | Preparation method of cubic ultra-fine calcium carbonate particles |
| CN104705775A (en) * | 2015-01-30 | 2015-06-17 | 云南中烟工业有限责任公司 | Preparation and application for paper-making process reconstituted tobacco sizing agent coated with calcium carbonate |
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2016
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Patent Citations (12)
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| CN1641100A (en) * | 2004-07-20 | 2005-07-20 | 上海东升新材料有限公司 | Method for recovering superfine calcium carbonate by clean causticization of green liquor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112356533A (en) * | 2020-09-11 | 2021-02-12 | 临沂斯科瑞聚氨酯材料有限公司 | Roof waterproof flexible material |
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| C06 | Publication | ||
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Application publication date: 20160824 |