CN112058229A - Preparation method of feldspar-coated nano white carbon material with high adsorption performance - Google Patents
Preparation method of feldspar-coated nano white carbon material with high adsorption performance Download PDFInfo
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Abstract
The invention relates to the technical field of nano white carbon preparation, in particular to a preparation method of a feldspar coated nano white carbon material with high adsorption performance. The invention has the beneficial effects that: refining and grinding the feldspar by a grinding machine and an ultrasonic generator to enable the particle size of the feldspar to reach a nanometer level so as to be combined with the nanometer white carbon, in the step 2), improving the combination degree of the feldspar particles and the nanometer white carbon by AMP-95, further improving the combination degree of the nanometer white carbon and the feldspar particles by vulcanization modification in the step 3), further coating the feldspar particles on the surface of the nanometer white carbon so as to improve the physical adsorption performance of the nanometer white carbon, reducing the hydrocarbon content on the surface of the nanometer white carbon by curing treatment in the step 4), improving the dispersibility of the nanometer white carbon, and improving the curing progress of the nanometer white carbon by heating steps in three stages of a reaction kettle.
Description
Technical Field
The invention relates to the technical field of nano white carbon preparation, in particular to a preparation method of a feldspar coated nano white carbon material with high adsorption performance.
Background
Feldspar is the most important diagenesis mineral of surface rock, feldspar is a general name of feldspar group minerals, and is a common aluminosilicate diagenesis mineral containing calcium, sodium and potassium, the feldspar is an aluminosilicate mineral containing calcium, sodium and potassium, and has various types, such as albite, anorthite, celsian, microcline feldspar, orthoclase feldspar, diaphorite and the like, which have glass luster, various colors, colorless, white, yellow, pink, green, gray, black and the like, are transparent and semitransparent, the feldspar itself should be colorless and transparent, so the feldspar is colored or not completely transparent, because of containing other impurities, is blocky, is platy, is columnar or needle-shaped, and the like, the feldspar rich in potassium or sodium is mainly used in the ceramic industry, the glass industry and the enamel industry, and the feldspar containing rare elements such as rubidium, cesium and the like can be used as a raw material for extracting the elements, the feldspar with beautiful color can be used as decorative stone and inferior gem.
The nano white carbon has surface hydrocarbon groups, and the surface hydrocarbon groups have certain agglomeration performance, so that the surface physical adsorption performance of the nano white carbon is weaker, and the feldspar particles which are refined to reach the nano level have better adsorption performance, so that how to wrap the feldspar on the nano white carbon to increase the physical adsorption performance of the nano white carbon is a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a preparation method of a feldspar coated nanometer white carbon material with high adsorption performance, which can solve the problems in the prior art at least to a certain extent.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a preparation method of a feldspar coated nanometer white carbon material with high adsorption performance comprises the following steps:
1) refining the feldspar: preliminarily crushing the feldspar, further ensuring the particle size of the preliminarily crushed feldspar to be within 0.05-0.10mm, then placing the preliminarily crushed feldspar particles in a grinding machine for grinding, and carrying out ultrasonic radiation on the feldspar particles by using an ultrasonic generator, and finally ensuring the particle size of the feldspar to be within 80-85 nm;
2) preparing mixed raw materials: placing the refined feldspar particles and the nano white carbon powder into a mixing and stirring kettle, stirring, adding AMP-95 and a proper amount of solvent into the mixing and stirring kettle during stirring, controlling the temperature in the mixing and stirring kettle at 340 ℃ of 300-;
3) and (3) vulcanization modification: pouring the mixed raw materials prepared in the steps onto a vulcanization bed, pouring 98% concentrated sulfuric acid solution onto the vulcanization bed, introducing steam with the temperature of 500-550 ℃ into the vulcanization bed, adding a stabilizer and a catalyst into the vulcanization bed at an interval of 30min in the vulcanization process, wherein the vulcanization reaction time is 5-5.5 hours, and preparing modified nano white carbon;
4) curing treatment: placing the modified nano white carbon treated in the step into a reaction kettle, adding a flatting agent into the reaction kettle, heating the reaction kettle at the temperature of 800-;
5) washing and dehydrating treatment: and (3) washing and dehydrating the cured modified nano white carbon to reduce the content of reactants in the modified nano white carbon and finally form the nano white carbon into dry powder, thus obtaining the finished product of the feldspar-coated nano white carbon.
As a further optimization of the technical scheme, the solvent in the step 2) is deionized water, and the ratio of the weight of the deionized water to the total weight of the feldspar particles and the nano white carbon powder is 1: 1.
As a further optimization of the technical scheme, the stabilizing agent comprises any one of magnesium stearate, stearic acid file, aluminum stearate and potassium stearate.
As a further optimization of the above technical solution, in the step 4), the heating process of the reaction kettle includes the following steps:
in the early stage, the reaction kettle is quickly heated up, the heating time is 30-40min, and the reaction kettle is quickly heated up to 800 ℃;
in the middle stage, the reaction kettle is kept warm for 1-1.5 hours, so that the temperature in the reaction kettle is kept at 800 ℃;
and in the later stage, slowly raising the temperature of the reaction kettle from 800 ℃ to 1000 ℃.
As a further optimization of the above technical solution, the leveling agent in step 4) includes an organic silicone.
The invention has the beneficial effects that: refining and grinding the feldspar by a grinding machine and an ultrasonic generator to enable the particle size of the feldspar to reach a nanometer level so as to be combined with the nanometer white carbon, in the step 2), improving the combination degree of the feldspar particles and the nanometer white carbon by AMP-95, further improving the combination degree of the nanometer white carbon and the feldspar particles by vulcanization modification in the step 3), further coating the feldspar particles on the surface of the nanometer white carbon so as to improve the physical adsorption performance of the nanometer white carbon, reducing the hydrocarbon content on the surface of the nanometer white carbon by curing treatment in the step 4), improving the dispersibility of the nanometer white carbon, and improving the curing progress of the nanometer white carbon by heating steps in three stages of a reaction kettle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of a method for preparing a feldspar coated nanometer white carbon material with high adsorption performance.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of a feldspar coated nanometer white carbon material with high adsorption performance comprises the following steps:
1) refining the feldspar: preliminarily crushing the feldspar, further enabling the particle size of the preliminarily crushed feldspar to be within 0.05mm, then placing the preliminarily crushed feldspar particles in a grinding machine for grinding, and carrying out ultrasonic radiation on the feldspar particles by using an ultrasonic generator, and finally enabling the particle size of the feldspar to be within 85 nm;
2) preparing mixed raw materials: placing the refined feldspar particles and the nano white carbon powder into a mixing and stirring kettle, stirring, adding AMP-95 and a proper amount of solvent into the mixing and stirring kettle during stirring, controlling the temperature in the mixing and stirring kettle at 330 ℃, and stirring until the mixture is uniform to prepare a mixed raw material, wherein the solvent is deionized water, and the weight ratio of the deionized water to the total weight of the feldspar particles and the nano white carbon powder is 1: 1;
3) and (3) vulcanization modification: pouring the mixed raw materials prepared in the steps onto a vulcanization bed, pouring 98% concentrated sulfuric acid solution onto the vulcanization bed, introducing steam with the temperature of 500 ℃ into the vulcanization bed, adding a stabilizer and a catalyst into the vulcanization bed at intervals of 30min in the vulcanization process, and carrying out vulcanization reaction for 5.5 hours to prepare modified nano white carbon, wherein the stabilizer comprises any one of magnesium stearate, stearic acid files, aluminum stearate and potassium stearate;
4) curing treatment: placing the modified nano white carbon treated in the steps into a reaction kettle, adding a leveling agent into the reaction kettle, heating the reaction kettle at 850 ℃ while continuously stirring the modified nano white carbon for 2 hours to prepare the cured modified nano white carbon, wherein the leveling agent comprises organic silicone, and the heating process of the reaction kettle comprises the following steps:
in the early stage, the reaction kettle is quickly heated up, the heating-up time is 40min, and the reaction kettle is quickly heated up to 800 ℃;
in the middle period, the reaction kettle is kept warm for 1.2 hours, so that the temperature in the reaction kettle is kept at 800 ℃;
in the later period, slowly heating the reaction kettle to raise the temperature in the reaction kettle from 800 ℃ to 1000 ℃;
5) washing and dehydrating treatment: and (3) washing and dehydrating the cured modified nano white carbon to reduce the content of reactants in the modified nano white carbon and finally form the nano white carbon into dry powder, thus obtaining the finished product of the feldspar-coated nano white carbon.
Example 2
A preparation method of a feldspar coated nanometer white carbon material with high adsorption performance comprises the following steps:
1) refining the feldspar: preliminarily crushing the feldspar, further enabling the particle size of the preliminarily crushed feldspar to be within 0.10mm, then placing the preliminarily crushed feldspar particles in a grinding machine for grinding, and carrying out ultrasonic radiation on the feldspar particles by using an ultrasonic generator, and finally enabling the particle size of the feldspar to be within 82 nm;
2) preparing mixed raw materials: placing the refined feldspar particles and the nano white carbon powder into a mixing and stirring kettle, stirring, adding AMP-95 and a proper amount of solvent into the mixing and stirring kettle during stirring, controlling the temperature in the mixing and stirring kettle at 300 ℃, and stirring until the mixture is uniform to prepare a mixed raw material, wherein the solvent is deionized water, and the weight ratio of the deionized water to the total weight of the feldspar particles and the nano white carbon powder is 1: 1;
3) and (3) vulcanization modification: pouring the mixed raw materials prepared in the steps onto a vulcanization bed, pouring 98% concentrated sulfuric acid solution onto the vulcanization bed, introducing steam with the temperature of 550 ℃ into the vulcanization bed, adding a stabilizer and a catalyst into the vulcanization bed at intervals of 30min in the vulcanization process, and carrying out vulcanization reaction for 5.2 hours to prepare modified nano white carbon, wherein the stabilizer comprises any one of magnesium stearate, stearic acid files, aluminum stearate and potassium stearate;
4) curing treatment: placing the modified nano white carbon treated in the step into a reaction kettle, adding a leveling agent into the reaction kettle, heating the reaction kettle at 800 ℃ while continuously stirring the modified nano white carbon for 2.2 hours to prepare the cured modified nano white carbon, wherein the leveling agent comprises organic silicone, and the heating process of the reaction kettle comprises the following steps:
in the early stage, the reaction kettle is quickly heated up, the heating-up time is 33min, and the reaction kettle is quickly heated up to 800 ℃;
in the middle period, the reaction kettle is subjected to heat preservation for 1 hour, so that the temperature in the reaction kettle is maintained at 800 ℃;
in the later period, slowly heating the reaction kettle to raise the temperature in the reaction kettle from 800 ℃ to 1000 ℃;
5) washing and dehydrating treatment: and (3) washing and dehydrating the cured modified nano white carbon to reduce the content of reactants in the modified nano white carbon and finally form the nano white carbon into dry powder, thus obtaining the finished product of the feldspar-coated nano white carbon.
Example 3
A preparation method of a feldspar coated nanometer white carbon material with high adsorption performance comprises the following steps:
1) refining the feldspar: preliminarily crushing the feldspar, further enabling the particle size of the preliminarily crushed feldspar to be within 0.07mm, then placing the preliminarily crushed feldspar particles in a grinding machine for grinding, and carrying out ultrasonic radiation on the feldspar particles by using an ultrasonic generator, and finally enabling the particle size of the feldspar to be within 80 nm;
2) preparing mixed raw materials: placing the refined feldspar particles and the nano white carbon powder into a mixing and stirring kettle, stirring, adding AMP-95 and a proper amount of solvent into the mixing and stirring kettle during stirring, controlling the temperature in the mixing and stirring kettle at 340 ℃, and stirring until the mixture is uniform to prepare a mixed raw material, wherein the solvent is deionized water, and the weight ratio of the deionized water to the total weight of the feldspar particles and the nano white carbon powder is 1: 1;
3) and (3) vulcanization modification: pouring the mixed raw materials prepared in the steps onto a vulcanization bed, pouring 98% concentrated sulfuric acid solution onto the vulcanization bed, introducing steam with the temperature of 525 ℃ into the vulcanization bed, adding a stabilizer and a catalyst into the vulcanization bed at intervals of 30min in the vulcanization process, and carrying out vulcanization reaction for 5 hours to prepare modified nano white carbon, wherein the stabilizer comprises any one of magnesium stearate, stearic acid files, aluminum stearate and potassium stearate;
4) curing treatment: placing the modified nano white carbon treated in the step into a reaction kettle, adding a leveling agent into the reaction kettle, heating the reaction kettle at 1000 ℃, continuously stirring the modified nano white carbon, wherein the heating and stirring time is 2.1 hours, and preparing the cured modified nano white carbon, wherein the leveling agent comprises organic silicone, and the heating process of the reaction kettle comprises the following steps:
in the early stage, the reaction kettle is quickly heated up, the heating-up time is 30min, and the reaction kettle is quickly heated up to 800 ℃;
in the middle period, the reaction kettle is kept warm for 1.5 hours, so that the temperature in the reaction kettle is kept at 800 ℃;
in the later period, slowly heating the reaction kettle to raise the temperature in the reaction kettle from 800 ℃ to 1000 ℃;
5) washing and dehydrating treatment: and (3) washing and dehydrating the cured modified nano white carbon to reduce the content of reactants in the modified nano white carbon and finally form the nano white carbon into dry powder, thus obtaining the finished product of the feldspar-coated nano white carbon.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A preparation method of a feldspar coated nanometer white carbon material with high adsorption performance is characterized by comprising the following steps:
1) refining the feldspar: preliminarily crushing the feldspar, further ensuring the particle size of the preliminarily crushed feldspar to be within 0.05-0.10mm, then placing the preliminarily crushed feldspar particles in a grinding machine for grinding, and carrying out ultrasonic radiation on the feldspar particles by using an ultrasonic generator, and finally ensuring the particle size of the feldspar to be within 80-85 nm;
2) preparing mixed raw materials: placing the refined feldspar particles and the nano white carbon powder into a mixing and stirring kettle, stirring, adding AMP-95 and a proper amount of solvent into the mixing and stirring kettle during stirring, controlling the temperature in the mixing and stirring kettle at 340 ℃ of 300-;
3) and (3) vulcanization modification: pouring the mixed raw materials prepared in the steps onto a vulcanization bed, pouring 98% concentrated sulfuric acid solution onto the vulcanization bed, introducing steam with the temperature of 500-550 ℃ into the vulcanization bed, adding a stabilizer and a catalyst into the vulcanization bed at an interval of 30min in the vulcanization process, wherein the vulcanization reaction time is 5-5.5 hours, and preparing modified nano white carbon;
4) curing treatment: placing the modified nano white carbon treated in the step into a reaction kettle, adding a flatting agent into the reaction kettle, heating the reaction kettle at the temperature of 800-;
5) washing and dehydrating treatment: and (3) washing and dehydrating the cured modified nano white carbon to reduce the content of reactants in the modified nano white carbon and finally form the nano white carbon into dry powder, thus obtaining the finished product of the feldspar-coated nano white carbon.
2. The method for preparing the feldspar coated nanometer white carbon material with high adsorption performance according to claim 1, wherein the solvent in the step 2) is deionized water, and the weight ratio of the deionized water to the total weight of the feldspar particles and the nanometer white carbon powder is 1: 1.
3. The method for preparing the feldspar coated nanometer white carbon material with high adsorption performance according to claim 1, wherein the stabilizer comprises any one of magnesium stearate, stearic acid file, aluminum stearate and potassium stearate.
4. The method for preparing the feldspar coated nanometer white carbon material with high adsorption performance according to claim 1, wherein in the step 4), the heating process of the reaction kettle comprises the following steps:
in the early stage, the reaction kettle is quickly heated up, the heating time is 30-40min, and the reaction kettle is quickly heated up to 800 ℃;
in the middle stage, the reaction kettle is kept warm for 1-1.5 hours, so that the temperature in the reaction kettle is kept at 800 ℃;
and in the later stage, slowly raising the temperature of the reaction kettle from 800 ℃ to 1000 ℃.
5. The method for preparing the feldspar-wrapped nanometer white carbon material with high adsorption performance according to claim 1, wherein the leveling agent in the step 4) comprises organic silicone.
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