CN113861725A - Preparation method of calcium carbonate/talcum powder composite material - Google Patents
Preparation method of calcium carbonate/talcum powder composite material Download PDFInfo
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- CN113861725A CN113861725A CN202111214932.2A CN202111214932A CN113861725A CN 113861725 A CN113861725 A CN 113861725A CN 202111214932 A CN202111214932 A CN 202111214932A CN 113861725 A CN113861725 A CN 113861725A
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- talcum powder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT 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
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3045—Treatment with inorganic compounds
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- 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
- C08K3/34—Silicon-containing compounds
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT 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
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
Abstract
The invention discloses a preparation method of a calcium carbonate/talcum powder composite material, which comprises the following steps of fully and uniformly mixing calcium oxide, cane sugar, talcum powder and water, digesting the mixed solution in water bath at 60-100 ℃ for at least 2 hours, stirring the mixed solution at room temperature for reaction for at least 10 hours, introducing CO2 gas for carbonization for at least 2 hours to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
Description
Technical Field
The invention relates to a method, in particular to a preparation method of a calcium carbonate/talcum powder composite material.
Background
Calcium carbonate/talcum powder is an inorganic filler widely applied in industrial production, the talcum powder generally has a flaky crystal structure characteristic, and simultaneously has natural hydrophobicity, a wetting agent needs to be added in application, the whiteness of the low-quality talcum powder is low, the application of the talcum powder is limited, the calcium carbonate has excellent and unique physical and chemical properties, is wide in source and low in price, is used as a filler and a modifier with excellent performance, is widely applied to industries such as building materials, rubber, plastics, papermaking, coatings, printing ink, food, medicines and the like, can improve the wear resistance, glossiness, dimensional stability, mechanical property, processability, thickening and anti-settling property of products, improves the comprehensive performance of products, researches in recent years show that the flaky calcium carbonate has better performance in the fields of papermaking filler, rubber and plastic modification, and the existing technology generally needs to add a crystal form control agent, the impurity ions are introduced into the calcium carbonate, and the production cost is increased.
The prior art is as described in patent (CN106320065B), a liquid medium is prepared from calcium carbonate/talc powder, water, a dispersant and sodium hydroxide, then heavy calcium carbonate, an emulsifier and sodium polyacrylate are added, and the mixture is fully mixed and stirred to obtain a talc powder and calcium carbonate composite slurry with high solid content.
According to another technical scheme, as described in patent (CN107686601A), talcum powder and calcium chloride dispersion are uniformly stirred, then carbon dioxide and ammonia gas are introduced for carbonization, then filtration and drying are carried out, 2 times of mass of absolute ethyl alcohol is added into solid precipitate for grinding for 2 hours, and then filtration and drying are carried out to obtain the calcium carbonate coated talcum powder composite powder.
Disclosure of Invention
The invention aims to solve the technical problems that the existing process for preparing the calcium carbonate/talcum powder composite material is complex and high in cost, and aims to provide a preparation method of the calcium carbonate/talcum powder composite material, which is simple in preparation method and convenient to operate, remarkably improves the whiteness of prepared composite powder, and has a structure that a talcum powder laminated structure is used as a template, and chemical deposition calcium carbonate is coated on the surface of the laminated talcum powder. The invention is realized by the following technical scheme:
a preparation method of a calcium carbonate/talcum powder composite material comprises the following steps:
the method comprises the following steps: adding calcium oxide, sucrose and talcum powder into water, fully and uniformly mixing, and fully reacting the mixed solution in a water bath at 60-100 ℃ for at least 2 hours;
step two: stirring the mixed solution at room temperature for reaction for at least 10 hours at a stirring speed of 50-500 rpm;
step three: then introducing CO into the reaction liquid2And (3) carbonizing the gas for at least 2 hours to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
The working principle of the invention is as follows: the preparation method is simple, the operation is simple, the whiteness of the prepared composite powder is remarkably improved, the structure that the talcum powder laminated structure is used as a template, and the chemical deposition calcium carbonate is coated on the surface of the laminated talcum powder is realized, so that the problem that the high-purity calcium carbonate/talcum powder composite powder is difficult to obtain is solved.
Further, the calcium oxide, the sucrose and the talcum powder in the step one are mixed according to a mass ratio of 0.5-10: 0.01-4: 1, the material is fed, and the talcum powder is 300-.
Further, the reaction solution in the third step is water bath at 60-100 deg.c, and CO is introduced at 5-30 ml/min while stirring at 50-500 rpm2And (4) carbonizing the gas.
Furthermore, the calcium carbonate/talcum powder composite material is a structural powder formed by coating chemically deposited calcium carbonate on the surface of lamellar talcum powder by taking talcum powder as a template.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the preparation method of the calcium carbonate/talcum powder composite material, calcium oxide is used as a raw material, the purity of the raw material is high, and the preparation process is simple;
2. the invention relates to a preparation method of calcium carbonate/talcum powder composite material, wherein calcium carbonate/talcum powder composite powder has a structure that a talcum powder lamellar structure is taken as a template, and chemical deposition calcium carbonate is coated on the surface of lamellar talcum powder;
3. the preparation method of the calcium carbonate/talcum powder composite material has the advantages of high whiteness and good dispersibility of the calcium carbonate/talcum powder composite powder, and is convenient to apply to the field of modification of materials such as papermaking filler, rubber, plastic and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a scanning electron microscope image of a calcium carbonate/talc powder composite material according to the present invention;
fig. 2 is a partial enlarged scanning electron microscope image of the calcium carbonate/talc powder composite material provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The invention relates to a preparation method of a calcium carbonate/talcum powder composite material, which is shown in figures 1-2:
the method comprises the following steps: firstly, adding 5g of calcium oxide, 3g of cane sugar and 1g of talcum powder (2000 meshes) into 200mL of water, fully and uniformly mixing, and then fully reacting the mixed solution in a water bath at the temperature of 80 ℃ for 2 hours;
step two: stirring the mixed solution at the stirring speed of 100 revolutions per minute for 10 hours at room temperature;
step three: introducing CO into the reaction solution at the speed of 10 ml/min in a water bath at the temperature of 80 ℃ and the stirring speed of 100 revolutions/min2And carbonizing the gas for 2 hours to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
The specific implementation manner of this embodiment is: fig. 1 is a scanning electron microscope image of the calcium carbonate/talc powder composite material prepared under the conditions of example 1, from which it can be seen that the whole product has a sheet-like structure, and the side surface of the talc powder sheet is also coated with calcium carbonate, fig. 2 is a partially enlarged scanning electron microscope image of the calcium carbonate/talc powder composite material prepared under the conditions of example 1, from which it can be seen that the nano-scale calcium carbonate is well coated on the surface of the sheet-like talc powder.
Example 2
Based on embodiment 1, the specific implementation manner of this embodiment is as follows:
the method comprises the following steps: firstly, 0.5g of calcium oxide, 0.01g of cane sugar and 1g of talcum powder (300 meshes) are added into 200mL of water and fully mixed uniformly, and then the mixed solution is fully reacted for 3 hours in a water bath at 60 ℃;
step two: stirring the mixed solution at the stirring speed of 50 revolutions per minute for reaction for 12 hours at room temperature;
step three: introducing CO into the reaction solution at the speed of 5 ml/min in a water bath at the temperature of 60 ℃ and the stirring speed of 100 revolutions/min2And carbonizing the mixture for 4 hours by using gas to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
Example 3
Based on the above embodiment, the specific implementation manner of this embodiment is as follows:
the method comprises the following steps: firstly, adding 10g of calcium oxide, 0.2g of cane sugar and 1g of talcum powder (8000 meshes) into 200mL of water, fully and uniformly mixing, and then fully reacting the mixed solution in a water bath at 100 ℃ for 3 hours;
step two: stirring the mixed solution at the stirring speed of 200 revolutions per minute for 16 hours at room temperature;
step three: introducing CO into the reaction solution at the speed of 30 ml/min in a water bath at the temperature of 80 ℃ and at the stirring speed of 100 revolutions/min2And carbonizing the mixture for 2 hours by using gas to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
Example 4
Based on the above embodiment, the specific implementation manner of this embodiment is as follows:
the method comprises the following steps: adding 1g of calcium oxide, 0.1g of cane sugar and 1g of talcum powder (2000 meshes) into 200mL of water, fully and uniformly mixing, and fully reacting the mixed solution in a water bath at the temperature of 80 ℃ for 2 hours;
step two: stirring the mixed solution at the stirring speed of 200 revolutions per minute for 10 hours at room temperature;
step three: introducing CO into the reaction solution at a speed of 20 ml/min in a water bath at 90 ℃ and a stirring speed of 100 revolutions/min2And carbonizing the mixture for 3 hours by using gas to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The preparation method of the calcium carbonate/talcum powder composite material is characterized by comprising the following steps of:
the method comprises the following steps: adding calcium oxide, sucrose and talcum powder into water, fully and uniformly mixing, and fully reacting the mixed solution in a water bath at 60-100 ℃ for at least 2 hours;
step two: stirring the mixed solution at room temperature for reaction for at least 10 hours at a stirring speed of 50-500 rpm;
step three: introducing CO into the reaction liquid in the second step2And (3) carbonizing the gas for at least 2 hours to obtain calcium carbonate/talcum powder composite material slurry, and finally performing suction filtration, washing and drying to obtain the calcium carbonate/talcum powder composite material.
2. The preparation method of the calcium carbonate/talcum powder composite material as claimed in claim 1, wherein the weight ratio of the calcium oxide, the sucrose and the talcum powder in the step one is 0.5-10: 0.01-4: 1, feeding.
3. The method for preparing calcium carbonate/talcum powder composite material as claimed in claim 1, wherein in the third step, CO is introduced into the reaction solution in a water bath at 60-100 ℃ and at a rate of 5-30 ml/min under stirring at 50-500 rpm2And (4) carbonizing the gas.
4. The method for preparing calcium carbonate/talcum powder composite material according to claim 1, wherein the calcium carbonate/talcum powder composite material takes talcum powder as a template, and the chemically deposited calcium carbonate is coated on the surface of the lamellar talcum powder to form structural powder.
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| CN202111214932.2A CN113861725A (en) | 2021-10-19 | 2021-10-19 | Preparation method of calcium carbonate/talcum powder composite material |
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| CN202111214932.2A CN113861725A (en) | 2021-10-19 | 2021-10-19 | Preparation method of calcium carbonate/talcum powder composite material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371947A (en) * | 2001-02-27 | 2002-10-02 | 盖国胜 | Method for covering nano calcium carbonate on heavy mass calcium carbonate surface |
| CN101570344A (en) * | 2009-06-04 | 2009-11-04 | 九江市富通化工有限公司 | Preparation method of aragonite crystal form calcium carbonate |
| CN103131210A (en) * | 2013-02-06 | 2013-06-05 | 浙江工业大学 | Preparation method of composite calcium carbonate |
| CN106320065A (en) * | 2015-06-26 | 2017-01-11 | 池州学院 | Preparation method of talcum powder and heavy calcium carbonate powder slurry with high solid content |
| CN107686601A (en) * | 2017-09-29 | 2018-02-13 | 安徽凤杰金属资源有限公司 | A kind of calcium carbonate coated talc powder modified polypropylene plastic particle |
| CN108706620A (en) * | 2018-05-29 | 2018-10-26 | 西北工业大学 | Nano calcium hydroxide/magnalium carbonate form nano hydrotalcite nanocomposite and preparation method |
-
2021
- 2021-10-19 CN CN202111214932.2A patent/CN113861725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371947A (en) * | 2001-02-27 | 2002-10-02 | 盖国胜 | Method for covering nano calcium carbonate on heavy mass calcium carbonate surface |
| CN101570344A (en) * | 2009-06-04 | 2009-11-04 | 九江市富通化工有限公司 | Preparation method of aragonite crystal form calcium carbonate |
| CN103131210A (en) * | 2013-02-06 | 2013-06-05 | 浙江工业大学 | Preparation method of composite calcium carbonate |
| CN106320065A (en) * | 2015-06-26 | 2017-01-11 | 池州学院 | Preparation method of talcum powder and heavy calcium carbonate powder slurry with high solid content |
| CN107686601A (en) * | 2017-09-29 | 2018-02-13 | 安徽凤杰金属资源有限公司 | A kind of calcium carbonate coated talc powder modified polypropylene plastic particle |
| CN108706620A (en) * | 2018-05-29 | 2018-10-26 | 西北工业大学 | Nano calcium hydroxide/magnalium carbonate form nano hydrotalcite nanocomposite and preparation method |
Non-Patent Citations (1)
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| 吴国光: "造纸用轻质碳酸钙的制造技术", 《中华纸业》 * |
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