CN111574856A - Preparation method of 80-mesh potassium feldspar wet powder - Google Patents

Preparation method of 80-mesh potassium feldspar wet powder Download PDF

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CN111574856A
CN111574856A CN202010462653.7A CN202010462653A CN111574856A CN 111574856 A CN111574856 A CN 111574856A CN 202010462653 A CN202010462653 A CN 202010462653A CN 111574856 A CN111574856 A CN 111574856A
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aluminum
zinc
potassium feldspar
propylene glycol
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邓培有
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Hezhou Junxin Mineral Products Co ltd
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    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
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    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
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    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
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    • C01B33/32—Alkali metal silicates
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/041—Grinding
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
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Abstract

The invention discloses a preparation method of 80-mesh potassium feldspar wet powder, which comprises the following technical steps: 1) preparing potassium feldspar ore concentrate; 2) performing primary ball milling treatment; 3) screening for the first time; 4) removing impurities by magnetic separation; 5) performing ball milling treatment and classification for the second time; 6) removing impurities by magnetic separation for the second time; 7) grading, filtering and treating to obtain wet powder of 80 meshes. The invention adds the dispersant containing propylene glycol alginate protease ester during ball milling treatment, so that the excellent dispersing effect is achieved, the whiteness of the potassium feldspar powder can be improved, and the whiteness (1200 ℃) of the obtained potassium feldspar powder is 80-82.

Description

Preparation method of 80-mesh potassium feldspar wet powder
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of mineral powder processing, and particularly relates to a preparation method of 80-mesh potassium feldspar wet powder.
[ background of the invention ]
The potassium feldspar is aluminosilicate mineral of alkali metal or alkaline earth metal such as potassium, sodium, calcium, etc., and is also called feldspar mineral. Potassium feldspar (K)2O-Al2O3-6SiO2) Orthoclase, commonly known as orthoclase, is usually flesh red, white or gray. Potassium feldspar is one of feldspar minerals, is a potassium-containing framework silicate, and is KAlSi3O8Three homogeneous multiphase variants ofGeneral names of feldspar, orthoclase and Weixie feldspar. The potassium feldspar series mainly comprises orthoclase, microcline feldspar, diaclase feldspar and aluminosilicate minerals. The potash feldspar has the characteristics of low melting point, long melting interval time, high viscosity of the molten liquid and transparency of a glassy substance formed by melting at high temperature, and is widely applied to the industrial fields of glass and ceramics.
The potassium feldspar powder is used as raw material for glass industry (about 50-60% of total dosage), and 30% of the potassium feldspar powder is used in ceramic industry, and the rest is used in other industries such as chemical industry, glass flux, ceramic blank ingredients, ceramic glaze, enamel raw material, abrasive tool, glass fiber, welding electrode and the like. The potash feldspar powder is used for glass and ceramic, and can also be used for preparing potash fertilizer, and the potash feldspar with better quality is used for manufacturing television display glass shells and the like. The potassium feldspar material is mainly used for ceramic glaze materials and green body materials, and accounts for about 30 percent; the basic material for manufacturing glass accounts for 45-50%, and the high-quality potassium feldspar material has wide requirements in the aspects of manufacturing high-end ceramics, electronic devices and the like, particularly has high temperature resistance and unique antioxidation effect in the aspects of coating large-scale equipment such as ships and wind power equipment, and is a material support which cannot be separated from current and future high-end manufacturing and accurate manufacturing.
At present, in the processing and production of potassium feldspar powder materials in China, the product with the whiteness (1200 ℃) of about 40 percent accounts for more than 70 percent, the product with the whiteness (1200 ℃) of 65-75 percent accounts for less than 20 percent, and few enterprises can produce super-special products with the whiteness (more than or equal to 12 percent), the iron content (less than 0.1 percent) and the whiteness of more than or equal to 80 percent. For example, chinese patent application 201610285488.6 discloses a method for removing impurities and whitening potassium feldspar, which obtains high-grade and high-whiteness potassium feldspar sand powder by carrying out hydrothermal acid washing with sulfuric acid, but the wastewater of the process can cause serious pollution to the environment, the wastewater treatment cost is high, and the production cost of potassium feldspar powder is greatly increased. Therefore, there is a need to develop a process for producing potassium feldspar sand powder with high whiteness and low iron content, and simultaneously reduce or avoid the generation of acidic wastewater. In actual production, the production of high-purity and ultra-white products is opposite to the aspect of the overall deep processing technology, and ultra-white products cannot be produced when high purity is required to be produced. High purity, and the metal substances and other 'harmful substances' in the ore body are required to be removed by deep washing and fine selection; and the deep washing mode cannot be adopted in the process link to keep the proper whiteness of the beneficial components of the minerals.
In actual production, the pulverization of the potash feldspar is generally carried out by adopting dry pulverization and wet pulverization processes, the dry ultrafine pulverization is technically feasible, but the energy consumption is high, the cost is high, and the economic feasibility is realized, while the wet process has the characteristics of low engraving consumption, small product granularity, low production cost and the like, so the existing manufacturers generally adopt wet grinding as the previous wet coarse grinding process.
Therefore, the potassium feldspar wet powder with high purity and super whiteness is produced by researching the essential characteristics of the potassium feldspar mineral, and has good market prospect.
[ summary of the invention ]
Aiming at the problem that a potassium feldspar wet powder product with high purity and super whiteness is lacked in the existing research, the invention provides the preparation method of the 80-mesh potassium feldspar wet powder, and the dispersing agent containing propylene glycol alginate albumin acid ester is added during ball milling treatment, so that the excellent dispersing effect is achieved, the whiteness of potassium feldspar powder can be improved, and the whiteness (1200 ℃) of the obtained potassium feldspar powder is 80-82.
The invention relates to a preparation method of 80-mesh potassium feldspar wet powder, which comprises the following technical steps:
1) preparing potassium feldspar ore concentrate: crushing the excavated potassium feldspar crude ore, performing ore washing treatment through a spiral chute, removing sludge in the crude ore, and dehydrating; sending the raw ore subjected to moisture draining into an ore color sorter, and screening by the ore color sorter to obtain raw ore with whiteness of more than 15%; crushing the raw ore obtained by screening to obtain ore sand crushed to the granularity of less than 1 cm;
2) ball milling treatment for the first time: feeding the ore sand obtained in the previous step into a first ball mill, adding a dispersing agent containing propylene glycol alginate protease ester, finely grinding the ore sand to be more than 50 meshes, and feeding the ore sand into a screening machine, wherein the using amount of the dispersing agent containing the propylene glycol alginate protease ester is 0.3-0.4% of the mass of the grinding material;
3) and (3) screening treatment for the first time: screening ore sand particles with the particle size of more than 50 meshes by a first screening machine, sending the ore sand particles into a desliming cyclone, and removing sludge mixed in the ore sand to obtain ore pulp;
4) magnetic separation and impurity removal: carrying out magnetic separation on the ore pulp obtained in the last step by a vertical ring pulsating high gradient medium magnetic separator to remove iron impurities;
5) ball milling treatment and classification for the second time: fine grinding the mineral powder obtained in the previous step to more than 80 meshes by a second ball mill, adding a dispersing agent containing propylene glycol algae protein acid ester, wherein the using amount of the dispersing agent containing the propylene glycol algae protein acid ester is 0.3-0.4% of the mass of the grinding material, sending the mixture into a second screening machine, screening to obtain mineral powder below 80 meshes, sending the mineral powder to the previous step, screening by the second screening machine to obtain mineral powder above 80 meshes, sending the mineral powder into a grading cyclone to separate and grade the material to obtain high-fineness mineral pulp, and sending the mineral pulp into electromagnetic mineral separation equipment;
6) and (3) magnetic separation and impurity removal for the second time: carrying out magnetic separation on the materials obtained in the previous step by a vertical ring pulsating high gradient medium magnetic separator and an electromagnetic high ladder fine separator to remove iron impurities;
7) grading and filtering: feeding the materials into a cyclone to separate and grade the materials, feeding the materials with the particle size of more than 80 meshes into a disc filter, and treating to obtain wet powder with the particle size of 80 meshes;
the dispersing agent containing propylene glycol alginate protease described in the step 2) and the step 5) comprises the following components in percentage by mass: 30-40% of a composite carrier containing zinc oxide-aluminum oxide and 60-70% of propylene glycol algae protein acid ester; the composite carrier containing zinc oxide and aluminum oxide comprises the following components in mass percentage by mass: the zinc oxide content of the zinc-containing aluminum spinel is 35 percent, the aluminum oxide content is 65 percent, and the specific surface area of the composite carrier is 200-300m2(ii)/g; the dispersant containing propylene glycol alginate is prepared by the following method:
preparing a composite carrier containing zinc oxide and aluminum oxide: carrying out non-constant pH alternate titration on an aluminum-containing soluble salt solution and a zinc-containing solution to prepare a zinc oxide layered material containing zinc aluminate spinel; uniformly mixing zinc oxide containing zinc aluminate spinel and pseudo-boehmite, kneading, molding, drying, and roasting to obtain a zinc oxide-alumina-containing composite carrier;
the zinc oxide laminar material containing the zinc-aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, and is prepared by the following preparation method: dividing the soluble zinc salt solution into 2-4 parts, adding an aluminum-containing mixed solution of sodium metaaluminate and sodium carbonate into one part of the zinc salt solution at the temperature of 60-70 ℃, and stopping dropwise adding the aluminum-containing mixed solution when the pH value reaches 8.5-9.5; then, continuously dropwise adding another part of zinc salt solution; after the zinc salt solution is dripped, continuously dripping the aluminum-containing mixed solution, and stopping dripping the aluminum-containing mixed solution when the pH value reaches 8.5-9.5; alternately titrating the aluminum-containing mixed solution and the zinc salt solution according to the method until the zinc salt solution is completely titrated, finally titrating the aluminum-containing mixed solution for the last time, finishing the alternate titration process of the non-constant pH value when the pH value reaches 8.5-9.5, and controlling the titration process to be finished within 1-6 h; aging at 80-95 deg.C for 4-8h, cooling and washing to neutrality, drying at 80-140 deg.C for 4-10h, and calcining at 550 deg.C for 4-10h to obtain uniformly dispersed zinc oxide layered material containing zinc aluminate spinel;
secondly, uniformly mixing the zinc oxide-aluminum oxide-containing composite carrier and the propylene glycol alginate protease in proportion to obtain the dispersant containing the propylene glycol alginate protease.
In the first ball milling treatment in the step 2), the preferred ball-to-material ratio is 5: 1, initial slurry concentration of 60%.
The first screening treatment in the step 3) is preferably performed by using a cage screen with the specification of phi 1.6X6 m.
The vertical ring pulsating high gradient medium magnetic machine in the step 4) has the rated background magnetic induction intensity of 0.4-0.6T and the flow velocity of slurry of 2.5-4.5 cm/s.
And 5) performing secondary ball milling treatment, wherein the preferred ball-to-material ratio is 5: 1, initial slurry concentration of 60%.
The vertical ring pulsating high gradient medium magnetic machine in the step 6) has the rated background magnetic induction intensity of 1.3-1.8T and the flow velocity of slurry of 2.5-4.5 cm/s.
And 7) feeding the materials with the particle size of more than 80 meshes into a disc filter, treating to obtain wet powder with the particle size of 80 meshes, conveying the wet powder by using a belt conveyor, and stacking to obtain the wet powder with the particle size of 80 meshes, wherein the moisture content of the wet powder is 6-8%.
Compared with the prior art, the invention has the following advantages:
1. in the existing processing process of wet potassium feldspar powder, a dispersing agent is often added in the crushing process, because potassium feldspar is used as a polar inorganic substance, the surface electrostatic field intensity is high, the adsorption and agglomeration among powder particles are serious, and a large amount of nano-scale particles are contained in the slurry obtained by crushing, the dispersing agent is generally added in the crushing process, the commonly used dispersing agent in industrial production comprises sodium hexametaphosphate, ethanol, triethanolamine, sodium polyacrylate and the like, different dispersing agents have different dispersing mechanisms and different effects, but the whiteness is influenced by the addition of the dispersing agent of the above type, and the whiteness (1200 ℃) of the obtained potassium feldspar powder is generally 60-75. The effect of the invention is better than sodium hexametaphosphate, ethanol, triethanolamine and sodium polyacrylate by adding the dispersant containing the propylene glycol alginate protease, and the whiteness (1200 ℃) of the obtained potassium feldspar powder is 80-82 by adding the dispersant containing the propylene glycol alginate protease.
2. The propylene glycol algae protein acid ester used in the ball milling treatment is a gelatinizing agent, is a substance capable of increasing the viscosity of latex and liquid, is commonly used in food, can improve the viscosity of a material system, and enables the material system to keep a uniform and stable suspension state or an emulsion state or form gel, and has an emulsifying effect. Experiments show that the potassium feldspar powder has excellent dispersing effect and can improve the whiteness of the potassium feldspar powder.
3. According to the dispersant containing propylene glycol alginate, the zinc oxide-aluminum oxide composite carrier is added, the aluminum-containing soluble salt solution and the zinc-containing solution are subjected to non-constant pH alternative titration to prepare the zinc oxide layered material containing zinc aluminate spinel, partial micropores on the surface of the composite carrier can be effectively peptized, so that the proportion of the micropores on the surface of the composite carrier is reduced, the proportion of meso-macropores on the surface of the composite carrier is improved, the generation of more active site load centers on the surface of the composite carrier is promoted, and the dispersion efficiency of the propylene glycol alginate is effectively improved.
[ detailed description ] embodiments
The following examples are provided to further illustrate the embodiments of the present invention.
Example 1:
a preparation method of 80-mesh potassium feldspar wet powder comprises the following technical steps:
1) preparing potassium feldspar ore concentrate: crushing the excavated potassium feldspar crude ore, performing ore washing treatment through a spiral chute, removing sludge in the crude ore, and dehydrating; sending the raw ore subjected to moisture draining into an ore color sorter, and screening by the ore color sorter to obtain raw ore with whiteness of more than 15%; crushing the raw ore obtained by screening by using a roller press (DG100) to obtain ore sand crushed to the granularity of less than 1cm, and then conveying the ore sand by using a belt conveyor (8: 200);
2) ball milling treatment for the first time: feeding the ore sand obtained in the previous step into a first ball mill (GM2440), wherein the ball-to-feed ratio is 5: 1, adding a dispersing agent containing propylene glycol alginate protease ester, wherein the using amount of the dispersing agent containing the propylene glycol alginate protease ester is 0.4 percent of the mass of the grinding material, finely grinding the mixture to be more than 50 meshes, and feeding the mixture into a sieving machine (phi 1.6X6 meters);
3) and (3) screening treatment for the first time: screening ore sand particles with the particle size of more than 50 meshes by a first screening machine (a cage screen with the particle size of phi 1.6X6 m), sending the ore sand particles into desliming cyclones (phi 250 and phi 150), and removing sludge mixed in the ore sand to obtain ore pulp;
4) magnetic separation and impurity removal: carrying out magnetic separation on the ore pulp obtained in the last step by a vertical ring pulsating high gradient medium magnetic separator (Slon-2250 and Slon-2500), wherein the rated background magnetic induction intensity is 0.4 and 0.6T, the flow rate of the pulp is 2.5cm/s, and removing iron impurities;
5) ball milling treatment and classification for the second time: and (3) finely grinding the mineral powder to be more than 80 meshes by a second ball mill (phi 3.0X7.0 m) with the material obtained in the previous step, wherein the ball-material ratio is 5: 1, adding a dispersant containing propylene glycol algae protein acid ester, wherein the using amount of the dispersant containing the propylene glycol algae protein acid ester is 0.4 percent of the mass of the grinding material, sending the mixture into a second screening machine (phi 1.5X11 meters), screening to obtain ore powder with the granularity below 80 meshes, sending the ore powder to the previous step, screening by the second screening machine to obtain ore powder with the granularity above 80 meshes, sending the ore powder to grading cyclones (phi 150 and phi 75) to separate and grade the materials to obtain high-fineness ore pulp, and sending the ore pulp to electromagnetic ore dressing equipment;
6) and (3) magnetic separation and impurity removal for the second time: the material obtained in the previous step is subjected to magnetic separation with an electromagnetic high-gradient separator (EHG100/100) through a vertical ring pulsating high-gradient medium magnetic separator (Slon-2000) with rated background magnetic induction intensity of 1.3T and flow rate of slurry of 4.5cm/s to remove iron impurities;
7) grading and filtering: feeding into cyclones (phi 150 and phi 75) for separating and grading materials, feeding materials with a particle size of more than 80 meshes into a disc filter (ZPG60-12) and a belt conveyor (8: 600), and treating to obtain wet powder with a particle size of 80 meshes;
the dispersing agent containing propylene glycol alginate protease described in the step 2) and the step 5) comprises the following components in percentage by mass: 40% of a composite carrier containing zinc oxide-aluminum oxide and 60% of propylene glycol algae protein acid ester; the composite carrier containing zinc oxide and aluminum oxide comprises the following components in mass percentage by mass: the zinc oxide content of the zinc-containing aluminum spinel is 35 percent, the aluminum oxide content is 65 percent, and the specific surface area of the composite carrier is 200-300m2(ii)/g; the dispersant containing propylene glycol alginate is prepared by the following method:
preparing a composite carrier containing zinc oxide and aluminum oxide: carrying out non-constant pH alternate titration on an aluminum-containing soluble salt solution and a zinc-containing solution to prepare a zinc oxide layered material containing zinc aluminate spinel; uniformly mixing zinc oxide containing zinc aluminate spinel and pseudo-boehmite, kneading, molding, drying, and roasting to obtain a zinc oxide-alumina-containing composite carrier;
the zinc oxide laminar material containing the zinc-aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, and is prepared by the following preparation method: dividing the soluble zinc salt solution into 4 parts, adding an aluminum-containing mixed solution of sodium metaaluminate and sodium carbonate into one part of the zinc salt solution at the temperature of 60 ℃, and stopping dropwise adding the aluminum-containing mixed solution when the pH value reaches 8.5; then, continuously dropwise adding another part of zinc salt solution; after the zinc salt solution is dripped, continuously dripping the aluminum-containing mixed solution, and stopping dripping the aluminum-containing mixed solution when the pH value reaches 8.5; alternately titrating the aluminum-containing mixed solution and the zinc salt solution according to the method until the zinc salt solution is completely titrated, finally titrating the aluminum-containing mixed solution for the last time, finishing the alternate titration process of the non-constant pH value when the pH value reaches 8.5-9.5, and controlling the titration process to be finished within 6 hours; aging at 95 deg.C for 4h, cooling and washing to neutrality, drying at 140 deg.C for 4h, and calcining at 450 deg.C for 10h to obtain uniformly dispersed zinc oxide layered material containing zinc aluminate spinel;
secondly, uniformly mixing the zinc oxide-aluminum oxide-containing composite carrier and the propylene glycol alginate protease in proportion to obtain the dispersant containing the propylene glycol alginate protease.
Example 2:
a preparation method of 80-mesh potassium feldspar wet powder comprises the following technical steps:
1) preparing potassium feldspar ore concentrate: crushing the excavated potassium feldspar crude ore, performing ore washing treatment through a spiral chute, removing sludge in the crude ore, and dehydrating; sending the raw ore subjected to moisture draining into an ore color sorter, and screening by the ore color sorter to obtain raw ore with whiteness of more than 15%; crushing the raw ore obtained by screening to obtain ore sand crushed to the granularity of less than 1 cm;
2) ball milling treatment for the first time: sending the ore sand obtained in the previous step into a first ball mill, wherein the ball-material ratio is 5: 1, adding a dispersing agent containing propylene glycol alginate protease ester, wherein the using amount of the dispersing agent containing the propylene glycol alginate protease ester is 0.35 percent of the mass of the grinding material, finely grinding the mixture to be more than 50 meshes, and feeding the mixture into a sieving machine, wherein the concentration of the initial slurry is 60 percent;
3) and (3) screening treatment for the first time: screening ore sand particles with the size of more than 50 meshes by using a cage screen with the specification of phi 1.6X6 m through a first screening machine, sending the ore sand particles into a desliming cyclone, and removing sludge mixed in the ore sand to obtain ore pulp;
4) magnetic separation and impurity removal: carrying out magnetic separation on the ore pulp obtained in the previous step by a vertical ring pulsating high gradient medium magnetic separator, wherein the rated background magnetic induction intensity is 0.4T, the flow velocity of the pulp is 2.5cm/s, and removing iron impurities;
5) ball milling treatment and classification for the second time: and (3) finely grinding the mineral powder to be more than 80 meshes by using a second ball mill for the material obtained in the previous step, wherein the ball-material ratio is 5: 1, adding a dispersing agent containing propylene glycol algae protein acid ester, wherein the using amount of the dispersing agent containing the propylene glycol algae protein acid ester is 0.35 percent of the mass of the grinding materials, sending the mixture into a second screening machine, screening to obtain ore powder below 80 meshes, sending the ore powder back to the previous step, screening by the second screening machine to obtain ore powder above 80 meshes, sending the ore powder into a grading cyclone to separate and grade the materials to obtain high-fineness ore pulp, and sending the ore pulp into electromagnetic ore dressing equipment;
6) and (3) magnetic separation and impurity removal for the second time: the materials obtained in the previous step are subjected to magnetic separation by a vertical ring pulsating high gradient medium magnetic separator, the rated background magnetic induction intensity is 1.3T, the flow rate of the slurry is 2.5cm/s and an electromagnetic high gradient fine separator, and iron impurities are removed;
7) grading and filtering: feeding the materials into a cyclone to separate and grade the materials, feeding the materials with the granularity of more than 80 meshes into a disc filter, and stacking the materials after conveying the materials by a belt conveyor to obtain wet powder with the granularity of 80 meshes;
the dispersing agent containing propylene glycol alginate protease described in the step 2) and the step 5) comprises the following components in percentage by mass: 30% of a composite carrier containing zinc oxide-aluminum oxide and 70% of propylene glycol alginate protease; the composite carrier containing zinc oxide and aluminum oxide comprises the following components in mass percentage by mass: the zinc oxide content of the zinc-containing aluminum spinel is 35 percent, the aluminum oxide content is 65 percent, and the specific surface area of the composite carrier is 200-300m2(ii)/g; the dispersant containing propylene glycol alginate is prepared by the following method:
preparing a composite carrier containing zinc oxide and aluminum oxide: carrying out non-constant pH alternate titration on an aluminum-containing soluble salt solution and a zinc-containing solution to prepare a zinc oxide layered material containing zinc aluminate spinel; uniformly mixing zinc oxide containing zinc aluminate spinel and pseudo-boehmite, kneading, molding, drying, and roasting to obtain a zinc oxide-alumina-containing composite carrier;
the zinc oxide laminar material containing the zinc-aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, and is prepared by the following preparation method: dividing the soluble zinc salt solution into 2 parts, adding an aluminum-containing mixed solution of sodium metaaluminate and sodium carbonate into one part of the zinc salt solution at the temperature of 70 ℃, and stopping dropwise adding the aluminum-containing mixed solution when the pH value reaches 9.0; then, continuously dropwise adding another part of zinc salt solution; after the zinc salt solution is dripped, continuously dripping the aluminum-containing mixed solution, and stopping dripping the aluminum-containing mixed solution when the pH value reaches 9.0; alternately titrating the aluminum-containing mixed solution and the zinc salt solution according to the method until the zinc salt solution is completely dripped, finally dripping the aluminum-containing mixed solution, finishing the alternate titration process of the non-constant pH value when the pH value reaches 9.0, and controlling the titration process to be finished within 1 h; aging at 80 deg.C for 8h, cooling and washing to neutrality, drying at 80 deg.C for 10h, and calcining at 550 deg.C for 4h to obtain uniformly dispersed zinc oxide layered material containing zinc aluminate spinel;
secondly, uniformly mixing the zinc oxide-aluminum oxide-containing composite carrier and the propylene glycol alginate protease in proportion to obtain the dispersant containing the propylene glycol alginate protease.
Example 3:
a preparation method of 80-mesh potassium feldspar wet powder comprises the following technical steps:
1) preparing potassium feldspar ore concentrate: crushing the excavated potassium feldspar crude ore, performing ore washing treatment through a spiral chute, removing sludge in the crude ore, and dehydrating; sending the raw ore subjected to moisture draining into an ore color sorter, and screening by the ore color sorter to obtain raw ore with whiteness of more than 15%; crushing the raw ore obtained by screening to obtain ore sand crushed to the granularity of less than 1 cm;
2) ball milling treatment for the first time: sending the ore sand obtained in the previous step into a first ball mill, wherein the ball-material ratio is 5: 1, adding a dispersing agent containing propylene glycol alginate protease ester, wherein the using amount of the dispersing agent containing the propylene glycol alginate protease ester is 0.3 percent of the mass of the grinding material, finely grinding the mixture to be more than 50 meshes, and feeding the mixture into a sieving machine, wherein the concentration of the initial slurry is 60 percent;
3) and (3) screening treatment for the first time: screening ore sand particles with the size of more than 50 meshes by using a cage screen with the specification of phi 1.6X6 m through a first screening machine, sending the ore sand particles into a desliming cyclone, and removing sludge mixed in the ore sand to obtain ore pulp;
4) magnetic separation and impurity removal: carrying out magnetic separation on the ore pulp obtained in the previous step by a vertical ring pulsating high gradient medium magnetic separator, wherein the rated background magnetic induction intensity is 0.6T, the flow velocity of the pulp is 3.5cm/s, and removing iron impurities;
5) ball milling treatment and classification for the second time: and (3) finely grinding the mineral powder to be more than 80 meshes by using a second ball mill for the material obtained in the previous step, wherein the ball-material ratio is 5: 1, adding a dispersing agent containing propylene glycol algae protein acid ester, wherein the using amount of the dispersing agent containing the propylene glycol algae protein acid ester is 0.3 percent of the mass of the grinding material, sending the mixture into a second screening machine, screening to obtain ore powder below 80 meshes, sending the ore powder back to the previous step, screening by the second screening machine to obtain ore powder above 80 meshes, sending the ore powder into a grading cyclone to separate and grade the materials to obtain high-fineness ore pulp, and sending the ore pulp into electromagnetic ore dressing equipment;
6) and (3) magnetic separation and impurity removal for the second time: the materials obtained in the previous step are subjected to magnetic separation by a vertical ring pulsating high gradient medium magnetic separator, the rated background magnetic induction intensity is 1.8T, the flow rate of the slurry is 3.5cm/s and an electromagnetic high gradient fine separator, and iron impurities are removed;
7) grading and filtering: feeding the materials into a cyclone to separate and grade the materials, feeding the materials with the granularity of more than 80 meshes into a disc filter, and stacking the materials after conveying the materials by a belt conveyor to obtain wet powder with the granularity of 80 meshes;
the dispersing agent containing propylene glycol alginate protease described in the step 2) and the step 5) comprises the following components in percentage by mass: 35% of a composite carrier containing zinc oxide-aluminum oxide and 65% of propylene glycol algae protein acid ester; the composite carrier containing zinc oxide and aluminum oxide comprises the following components in mass percentage by mass: the zinc oxide content of the zinc-containing aluminum spinel is 35 percent, the aluminum oxide content is 65 percent, and the specific surface area of the composite carrier is 200-300m2(ii)/g; the dispersant containing propylene glycol alginate is prepared by the following method:
preparing a composite carrier containing zinc oxide and aluminum oxide: carrying out non-constant pH alternate titration on an aluminum-containing soluble salt solution and a zinc-containing solution to prepare a zinc oxide layered material containing zinc aluminate spinel; uniformly mixing zinc oxide containing zinc aluminate spinel and pseudo-boehmite, kneading, molding, drying, and roasting to obtain a zinc oxide-alumina-containing composite carrier;
the zinc oxide laminar material containing the zinc-aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, and is prepared by the following preparation method: dividing the soluble zinc salt solution into 3 parts, adding an aluminum-containing mixed solution of sodium metaaluminate and sodium carbonate into one part of the zinc salt solution at the temperature of 65 ℃, and stopping dropwise adding the aluminum-containing mixed solution when the pH value reaches 9.5; then, continuously dropwise adding another part of zinc salt solution; after the zinc salt solution is dripped, continuously dripping the aluminum-containing mixed solution, and stopping dripping the aluminum-containing mixed solution when the pH value reaches 9.5; alternately titrating the aluminum-containing mixed solution and the zinc salt solution according to the method until the zinc salt solution is completely dripped, finally dripping the aluminum-containing mixed solution for the last time, finishing the alternate titration process of the non-constant pH value when the pH value reaches 9.5, and controlling the titration process to be finished within 4 hours; aging at 90 deg.C for 6h, cooling and washing to neutrality, drying at 100 deg.C for 8h, and calcining at 500 deg.C for 6h to obtain uniformly dispersed zinc oxide layered material containing zinc aluminate spinel;
secondly, uniformly mixing the zinc oxide-aluminum oxide-containing composite carrier and the propylene glycol alginate protease in proportion to obtain the dispersant containing the propylene glycol alginate protease.
Comparative example 1:
the procedure of example 1 was otherwise the same as that of example 1 except that the dispersant was replaced with propylene glycol alginate.
Comparative example 2:
compared with the example 1, the dispersant is replaced by the composite carrier containing zinc oxide-aluminum oxide, and the other steps are the same as the example 1.
Comparative example 3:
the procedure of example 1 was otherwise the same as that of example 1 except that the dispersant was replaced with sodium hexametaphosphate.
Comparative example 4:
the procedure of example 1 was otherwise the same as that of example 1 except that the dispersant was replaced with sodium polyacrylate.
Table 1: product assay analysis detection report
Figure BDA0002511474380000091
As can be seen from the table above, the whiteness of the wet potassium feldspar powder obtained by the invention is more than 80, the iron content is lower than 0.06%, and the whiteness of the wet potassium feldspar powder obtained by the comparative example is less than 70.
Experimental example: ultra-fine grinding process experiment
1. The experimental method is as follows: setting the ball-material ratio as 5: 1, initial slurry concentration of 60%. The amount of the dispersant (the dispersant used in examples and comparative examples) was 0.5% (mass fraction) of the abrasive. The dosage of the potassium feldspar powder is 250g in each grinding, 1250g of the alumina medium dosage, 170g of water and 1.25g of the dispersant are obtained according to the proportion. The rotation speed was set to 1000 rpm. Grinding for 5h, and sampling once after cumulative grinding for 30 min. The particle size and particle size distribution of the sample are measured by a centrifugal sedimentation method.
2. The change of the particle size of the ground product with the grinding time is determined according to practical experience and the grinding process conditions are as follows:
250g of potassium feldspar powder, 0.8-1.4mm of alumina medium 12509 (the ball-to-material ratio is 5), 60 percent of initial slurry concentration (mass percent), 1000r/min (50Hz) of rotor rotation speed and 0.5 percent (mass percent) of dispersing agent, grinding for 5 hours, cumulatively grinding for 30min, sampling once, and determining the change rule of the granularity and the granularity distribution of the sampled sample obtained after the centrifugal sedimentation method is adopted along with the grinding time, wherein the test results are as follows:
TABLE 2: variation of particle size of Potassium feldspar powder with grinding time in example 1 and comparative example d50≤μm
Figure BDA0002511474380000101
Table 3: variation of particle size of Potassium feldspar powder with grinding time in example 1 and comparative example d97≤μm
Figure BDA0002511474380000102
As can be seen from tables 2 and 3:
1. when the powder is subjected to ultrafine grinding by using a medium stirring mill, the particle size of the potassium feldspar powder is reduced rapidly within the first 1 hour, and d is50Can reach below 2.6 μm; the particle size of the powder then slowly tapers over time due to the presence of microscopic cracks in the particles during the initial stages of comminution, which cracks are in turn stress ratioWhere more concentrated, the actual particle strength is much less than the crystal strength. Along with the extension of crushing time, the granule is littleer and littleer, and its structural defect improves for a short time, and the crushing degree of difficulty also sharply increases. In addition, as the grinding media wear and tear as the grinding process is prolonged, the packing rate of the media decreases, and the powder cannot be sufficiently ground, which means that the grinding fineness increases slowly. Therefore, under the condition of certain alumina ball diameter, slurry concentration, medium filling rate and ball mill rotation speed, the particle size of the powder is gradually reduced along with the time extension, the fineness is more and more difficult to increase, and the agglomeration phenomenon of some small powder occurs after the time is excessively extended, so that the pulverization-agglomeration balance exists in the superfine pulverization of the powder, because the finer the powder is, the higher the surface energy is, the larger the tendency of agglomeration among the powder to reduce the surface energy is, and the change of the particle size of the powder depends on the comprehensive effect of the two functions.
2. After the grinding time is 5h, the grinding and crushing speed of the powder is the same as the agglomeration speed among the powder, the dynamic balance of the crushing-agglomeration is achieved, the granularity of the potassium feldspar powder basically does not change along with the change of the grinding time, and at the moment, the d of the ground product50≤1.02-1.17μm、d97≤3.08-3.36μm。
3. The data show that example 1 is significantly superior to the comparative example. Compared with the effects of the comparative example 1 and the comparative example 2 and the comparative example 3 and the comparative example 4, the effects of the comparative example 1 and the comparative example 2 are slightly different, but the effects of the comparative example 1 and the comparative example 2 are obviously improved by combining propylene glycol algae protein acid ester with the zinc oxide-aluminum oxide composite carrier (example), because the zinc oxide layered material containing zinc aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, partial micropores on the surface of the composite carrier can be effectively peptized, so that the micropore ratio of the surface of the composite carrier is favorably reduced, the meso-macroporous ratio of the surface of the composite carrier is improved, more active site loading centers on the surface of the composite carrier are promoted, and the dispersion efficiency of the propylene glycol algae protein acid ester is effectively improved.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims (7)

1. The preparation method of the 80-mesh potassium feldspar wet powder is characterized by comprising the following technical steps of:
1) preparing potassium feldspar ore concentrate: crushing the excavated potassium feldspar crude ore, performing ore washing treatment through a spiral chute, removing sludge in the crude ore, and dehydrating; sending the raw ore subjected to moisture draining into an ore color sorter, and screening by the ore color sorter to obtain raw ore with whiteness of more than 15%; crushing the raw ore obtained by screening to obtain ore sand crushed to the granularity of less than 1 cm;
2) ball milling treatment for the first time: feeding the ore sand obtained in the previous step into a first ball mill, adding a dispersing agent containing propylene glycol alginate protease ester, finely grinding the ore sand to be more than 50 meshes, and feeding the ore sand into a screening machine, wherein the using amount of the dispersing agent containing the propylene glycol alginate protease ester is 0.3-0.4% of the mass of the grinding material;
3) and (3) screening treatment for the first time: screening ore sand particles with the particle size of more than 50 meshes by a first screening machine, sending the ore sand particles into a desliming cyclone, and removing sludge mixed in the ore sand to obtain ore pulp;
4) magnetic separation and impurity removal: carrying out magnetic separation on the ore pulp obtained in the last step by a vertical ring pulsating high gradient medium magnetic separator to remove iron impurities;
5) ball milling treatment and classification for the second time: fine grinding the mineral powder obtained in the previous step to more than 80 meshes by a second ball mill, adding a dispersing agent containing propylene glycol algae protein acid ester, wherein the using amount of the dispersing agent containing the propylene glycol algae protein acid ester is 0.3-0.4% of the mass of the grinding material, sending the mixture into a second screening machine, screening to obtain mineral powder below 80 meshes, sending the mineral powder to the previous step, screening by the second screening machine to obtain mineral powder above 80 meshes, sending the mineral powder into a grading cyclone to separate and grade the material to obtain high-fineness mineral pulp, and sending the mineral pulp into electromagnetic mineral separation equipment;
6) and (3) magnetic separation and impurity removal for the second time: carrying out magnetic separation on the materials obtained in the previous step by a vertical ring pulsating high gradient medium magnetic separator and an electromagnetic high ladder fine separator to remove iron impurities;
7) grading and filtering: feeding the materials into a cyclone to separate and grade the materials, feeding the materials with the particle size of more than 80 meshes into a disc filter, and treating to obtain wet powder with the particle size of 80 meshes;
the dispersing agent containing propylene glycol alginate protease described in the step 2) and the step 5) comprises the following components in percentage by mass: 30-40% of a composite carrier containing zinc oxide-aluminum oxide and 60-70% of propylene glycol algae protein acid ester; the composite carrier containing zinc oxide and aluminum oxide comprises the following components in mass percentage by mass: the zinc oxide content of the zinc-containing aluminum spinel is 35 percent, the aluminum oxide content is 65 percent, and the specific surface area of the composite carrier is 200-300m2(ii)/g; the dispersant containing propylene glycol alginate is prepared by the following method:
preparing a composite carrier containing zinc oxide and aluminum oxide: carrying out non-constant pH alternate titration on an aluminum-containing soluble salt solution and a zinc-containing solution to prepare a zinc oxide layered material containing zinc aluminate spinel; uniformly mixing zinc oxide containing zinc aluminate spinel and pseudo-boehmite, kneading, molding, drying, and roasting to obtain a zinc oxide-alumina-containing composite carrier;
the zinc oxide laminar material containing the zinc-aluminum spinel is prepared by carrying out non-constant pH alternative titration on an aluminum-containing soluble salt solution and a zinc-containing solution, and is prepared by the following preparation method: dividing the soluble zinc salt solution into 2-4 parts, adding an aluminum-containing mixed solution of sodium metaaluminate and sodium carbonate into one part of the zinc salt solution at the temperature of 60-70 ℃, and stopping dropwise adding the aluminum-containing mixed solution when the pH value reaches 8.5-9.5; then, continuously dropwise adding another part of zinc salt solution; after the zinc salt solution is dripped, continuously dripping the aluminum-containing mixed solution, and stopping dripping the aluminum-containing mixed solution when the pH value reaches 8.5-9.5; alternately titrating the aluminum-containing mixed solution and the zinc salt solution according to the method until the zinc salt solution is completely titrated, finally titrating the aluminum-containing mixed solution for the last time, finishing the alternate titration process of the non-constant pH value when the pH value reaches 8.5-9.5, and controlling the titration process to be finished within 1-6 h; aging at 80-95 deg.C for 4-8h, cooling and washing to neutrality, drying at 80-140 deg.C for 4-10h, and calcining at 550 deg.C for 4-10h to obtain uniformly dispersed zinc oxide layered material containing zinc aluminate spinel;
secondly, uniformly mixing the zinc oxide-aluminum oxide-containing composite carrier and the propylene glycol alginate protease in proportion to obtain the dispersant containing the propylene glycol alginate protease.
2. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: the first ball milling treatment in the step 2) is carried out, wherein the ball-to-material ratio is 5: 1, initial slurry concentration of 60%.
3. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: the first screening treatment in the step 3) is to use a cage screen with the specification of phi 1.6X6 m.
4. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: the vertical ring pulsating high gradient medium magnetic machine in the step 4) has the rated background magnetic induction intensity of 0.4-0.6T and the flow velocity of slurry of 2.5-4.5 cm/s.
5. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: and 5), performing secondary ball milling treatment, wherein the ball-to-material ratio is 5: 1, initial slurry concentration of 60%.
6. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: the vertical ring pulsating high gradient medium magnetic machine in the step 6) has the rated background magnetic induction intensity of 1.3-1.8T and the flow velocity of slurry of 2.5-4.5 cm/s.
7. The preparation method of 80-mesh potassium feldspar wet powder according to claim 1, characterized by comprising the following steps: and 7) feeding the materials with the particle size of more than 80 meshes into a disc filter, treating to obtain wet powder with the particle size of 80 meshes, and stacking after conveying by a belt conveyor to obtain the wet powder with the particle size of 80 meshes.
CN202010462653.7A 2020-05-27 2020-05-27 Preparation method of 80-mesh potassium feldspar wet powder Pending CN111574856A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371305A (en) * 2020-10-23 2021-02-19 王庆乐 Mixed soil mixing-grinding magnetic separation process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO129301A0 (en) * 2013-08-01 2014-03-28 Dumitru Vădan Process for recovering useful mineral substances from mud-setting pond wastes, refuse dumps and for preparing raw ore at rosia montana
CN106622204A (en) * 2015-10-30 2017-05-10 中国石油天然气股份有限公司 A zinc oxide material containing zinc-aluminate spinel and a preparing method thereof
CN107413518A (en) * 2017-09-15 2017-12-01 贺州市骏鑫矿产品有限责任公司 A kind of feldspar in powder preparation method
CN109179435A (en) * 2018-08-31 2019-01-11 贺州市骏鑫矿产品有限责任公司 A kind of concentration method for removing iron from potash feldspar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO129301A0 (en) * 2013-08-01 2014-03-28 Dumitru Vădan Process for recovering useful mineral substances from mud-setting pond wastes, refuse dumps and for preparing raw ore at rosia montana
CN106622204A (en) * 2015-10-30 2017-05-10 中国石油天然气股份有限公司 A zinc oxide material containing zinc-aluminate spinel and a preparing method thereof
CN107413518A (en) * 2017-09-15 2017-12-01 贺州市骏鑫矿产品有限责任公司 A kind of feldspar in powder preparation method
CN109179435A (en) * 2018-08-31 2019-01-11 贺州市骏鑫矿产品有限责任公司 A kind of concentration method for removing iron from potash feldspar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371305A (en) * 2020-10-23 2021-02-19 王庆乐 Mixed soil mixing-grinding magnetic separation process

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