CN104743563A - Process for purifying kaolin - Google Patents
Process for purifying kaolin Download PDFInfo
- Publication number
- CN104743563A CN104743563A CN201510159794.0A CN201510159794A CN104743563A CN 104743563 A CN104743563 A CN 104743563A CN 201510159794 A CN201510159794 A CN 201510159794A CN 104743563 A CN104743563 A CN 104743563A
- Authority
- CN
- China
- Prior art keywords
- kaolin
- agent
- kaolinic
- ore pulp
- pulp slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 33
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 33
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000004061 bleaching Methods 0.000 claims abstract description 15
- 238000001354 calcination Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007885 magnetic separation Methods 0.000 claims abstract description 7
- 238000000746 purification Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 7
- 239000006148 magnetic separator Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000007844 bleaching agent Substances 0.000 claims abstract description 3
- 239000013055 pulp slurry Substances 0.000 claims description 33
- 239000002002 slurry Substances 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000012065 filter cake Substances 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 239000012190 activator Substances 0.000 claims description 7
- 230000002829 reductive effect Effects 0.000 claims description 7
- 241000219112 Cucumis Species 0.000 claims description 5
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 5
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 229910001424 calcium ion Inorganic materials 0.000 claims description 4
- 150000002632 lipids Chemical class 0.000 claims description 4
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 239000003784 tall oil Substances 0.000 claims description 4
- 239000003002 pH adjusting agent Substances 0.000 claims description 3
- HSYFJDYGOJKZCL-UHFFFAOYSA-L zinc;sulfite Chemical compound [Zn+2].[O-]S([O-])=O HSYFJDYGOJKZCL-UHFFFAOYSA-L 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000009991 scouring Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 235000019580 granularity Nutrition 0.000 abstract 1
- 238000004537 pulping Methods 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 17
- 239000011707 mineral Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a process for purifying kaolin. The process comprises the following steps: putting kaolin and water in a pulping machine at a mass ratio of 1:4 so as to prepare ore pulp; putting the prepared ore pulp in a hydrocyclone to settle sand and grade granularities; then, putting the ore pulp in a high-gradient magnetic separator, and carrying out high-gradient magnetic separation so as to prepare fine ore pulp; putting the prepared fine ore pulp in a washing tank, adjusting the PH value of the ore pulp to be 4.5-5 by adding sulphuric acid, transferring into a bleaching tank, and adding a reducing agent to bleach; adding a dispersing agent and a PH value adjusting agent into the bleached ore pulp so as to scrub the ore pulp; adding an activating agent and a collecting agent into the scrubbed solution, and putting in a high-shear stirrer to stir and precipitate; and filtering, washing and drying precipitates, putting in a calcination box to calcinate at 700-900 DEG C, and crushing to obtain the purified kaolin. By means of the process for purifying kaolin, the whiteness and purification purity of kaolin are effectively increased.
Description
Technical field
The present invention relates to mineral dust purification techniques field, be specially a kind of kaolinic purifying technique.
Background technology
Mineral wealth are non-renewable, and the mineral wealth of high-quality are very rare especially.Along with the continuous expansion of inorganic mineral Application Areas, also increasing to the demand of high-quality inorganic mineral powder, therefore inferior inorganic mineral raw material is improved its quality by purifying and be of great significance with regard to tool.At present, Application Areas and the industry of inorganic mineral powder are numerous, increase its chemical stability, increase the service life as added in some raw materials, also can increase special property and the effect on its surface; Inorganic mineral powder after coupling agent modified, can increase thermoplasticity, the plasticity of thermosetting resin and tensile strength, and reduce thermal expansion; Inorganic mineral can also be used for Iron And Steel Industry, and crackle preventing occurs, and controls solder flux consumption; Can be used for rubber industry, as lubricant and releasing agent.After purifying high-quality inorganic mineral kaolin have that whiteness is high, matter is soft, easy dispersion suspension in water, good plasticity-and high cohesiveness, excellent electrical insulation capability, it also has good antiacid dissolubility, very low cation exchange capacity, the preferably physico-chemical property such as fire-resistant in addition.Therefore kaolin has become tens necessary raw mineral materialss of industry such as papermaking, pottery, rubber, chemical industry, coating, medicine and national defence.
In order to meet industry-by-industry and field to the requirement of inorganic mineral powder kaolin purity, therefore need to carry out purification processes to inorganic mineral kaolin, be the effective means improving inorganic mineral kaolin service efficiency, be also the effective ways saved mineral wealth, improve rate of utilization and cut the waste simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of kaolinic purifying technique, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of kaolinic purifying technique, comprises the following steps:
The first step, by kaolin and water in mass ratio routine 1:4 be placed in and smash pulp grinder and make pulp slurry;
Second step, is placed in hydrocyclone and carries out falling sand and size classification by the pulp slurry obtained in the first step;
3rd step, is placed in high gradient magnetic separator by the pulp slurry obtained in second step and carries out high-gradient magnetic separation, obtained concentrate slurries;
The concentrate slurries that 3rd step obtains are placed in rinse bath by the 4th step, add sulfuric acid and regulate the pH value of pulp slurry to be 4.5-5, are transferred in bleaching melon tank, add reductive agent and bleach;
5th step, the pulp slurry in the 4th step after bleaching adds dispersion agent and pH value adjusting agent is cleaned pulp slurry;
6th step, after adding activator and collecting agent, is placed in high-shear impeller and carries out stirring precipitation in the solution after scouring;
7th step, is undertaken the precipitation obtained in the 6th step filtering, washes, dries, and is placed between inherent 700-900 DEG C of calcining case and calcines, the kaolin after the purification after pulverizing being.
Preferably, in the 4th step, the concentration of described sulfuric acid is 0.5-1mol/L, and the purity of described sulfuric acid is at least chemical pure.
Preferably, in the 4th step, described reductive agent is at least one in V-Brite B, Sulfothiorine and zinc sulfite three.
Preferably, in the 5th step, described dispersion agent is water glass.
Preferably, in the 5th step, described pH adjusting agent is at least one in ammonium hydroxide and sodium hydroxide.
Preferably, in the 6th step, described activator is at least one in calcium ion and magnesium ion.
Preferably, in the 6th step, described collecting agent is at least one in alkyl hydroximic acid, tall oil, lipid acid and petroleum sodium sulfonate.
Preferably, in the 7th step, described precipitation washing 3-4 time, is placed in baking oven and dries at 80-100 DEG C by the filter cake of sedimentation and filtration gained.
Compared with prior art, the invention has the beneficial effects as follows: this kaolinic purifying technique, not only treatment process is simple, easy handling, and it is low for equipment requirements, corrodibility is little, utilize that slurrying-falling sand-magnetic separation-processing step of bleaching-scouring-precipitation-calcining carries out purification and can not introduce other impurity, kaolin is first pulverized and water slurrying process in proportion, be conducive to below sand falls, magnetic separation, bleaching, clean, precipitation and calcination processing, by cleaning kaolin ore slurries under dispersion agent and pH adjusting agent existent condition, effectively can remove the pollution mineral on surface, clean simultaneously and sharp Qin Kuang and rhombohedral iron ore also can be made to separate from kaolin, effectively raise the purity that kaolin is purified, thus kaolin is purified more all thoroughly even, the feature of environmental protection is good, and be easy to industrialization, be applicable to the kaolinic purification processes of different geology, after purifying, kaolin whiteness high-quality is good, industry-by-industry and field can be widely used in, the requirement of some property industries can be met, effectively raise the economic benefit of the kaolinic value added of inorganic mineral and relevant enterprise.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited to this.
Embodiment 1:
100g kaolin and 400mL water are placed in and smash pulp grinder and make pulp slurry; Pulp slurry is placed in hydrocyclone to carry out falling sand and size classification; Then pulp slurry is placed in high gradient magnetic separator and carries out magnetic separation, obtained concentrate slurries; Be placed in rinse bath by concentrate slurries, the pH value of concentrate slurries is adjusted to 4.5 by the sulfuric acid adding 0.5mol/L, the pulp slurry mixing up pH value is transferred in bleaching melon tank, adds reductive agent V-Brite B and carry out bleaching; In the pulp slurry after bleaching, add dispersion agent water glass and pH value adjusting agent ammonium hydroxide, pulp slurry is cleaned; Add activator calcium ion and collecting agent tall oil, lipid acid and petroleum sodium sulfonate to the pulp slurry of having cleaned, be then placed in high-shear impeller and carry out stirring precipitation; Precipitation is placed in suction filtration machine to filter, the filter cake filtering gained is washed 3 times, is then placed in baking oven and dries at 80 DEG C; Filter cake after oven dry is placed in calcining furnace calcine at 700 DEG C, then the filter cake after calcining is pulverized and both obtained the kaolin after purifying.Kaolin whiteness after purifying after testing is 95.8, and in kaolin, foreign matter content is 0.7%.
Embodiment 2:
200g kaolin and 800mL water are placed in and smash pulp grinder and make pulp slurry; Pulp slurry is placed in hydrocyclone to carry out falling sand and size classification; Then pulp slurry is placed in high gradient magnetic separator and carries out magnetic separation, obtained concentrate slurries; Be placed in rinse bath by concentrate slurries, the pH value of concentrate slurries is adjusted to 5 by the sulfuric acid adding 0.5mol/L, and the pulp slurry mixing up pH value is transferred in bleaching melon tank, adds reductive agent V-Brite B and Sulfothiorine carries out bleaching; In the pulp slurry after bleaching, add dispersion agent water glass and pH value adjusting agent sodium hydroxide, pulp slurry is cleaned; Add activator magnesium ion and collecting agent alkyl hydroximic acid to the pulp slurry of having cleaned, be then placed in high-shear impeller and carry out stirring precipitation; Precipitation is placed in suction filtration machine to filter, the filter cake filtering gained is washed 4 times, is then placed in baking oven and dries at 90 DEG C; Filter cake after oven dry is placed in calcining furnace calcine at 800 DEG C, then the filter cake after calcining is pulverized and both obtained the kaolin after purifying.Kaolin whiteness after purifying after testing is 97.2, and in kaolin, foreign matter content is 0.2%.
Embodiment 3:
200g kaolin and 800mL water are placed in and smash pulp grinder and make pulp slurry; Pulp slurry is placed in hydrocyclone to carry out falling sand and size classification; Then pulp slurry is placed in high gradient magnetic separator and carries out magnetic separation, obtained concentrate slurries; Be placed in rinse bath by concentrate slurries, the pH value of concentrate slurries is adjusted to 5 by the sulfuric acid adding 1mol/L, the pulp slurry mixing up pH value is transferred in bleaching melon tank, adds reductive agent V-Brite B, Sulfothiorine and zinc sulfite and carry out bleaching; In the pulp slurry after bleaching, add dispersion agent water glass and pH value adjusting agent ammonium hydroxide and sodium hydroxide, pulp slurry is cleaned; Add activator calcium ion and magnesium ion and collecting agent alkyl hydroximic acid tall oil, lipid acid and petroleum sodium sulfonate to the pulp slurry of having cleaned, be then placed in high-shear impeller and carry out stirring precipitation; Precipitation is placed in suction filtration machine to filter, the filter cake filtering gained is washed 4 times, is then placed in baking oven and dries at 100 DEG C; Filter cake after oven dry is placed in calcining furnace calcine at 900 DEG C, then the filter cake after calcining is pulverized and both obtained the kaolin after purifying.Kaolin whiteness after purifying after testing is 96.3, and in kaolin, foreign matter content is 0.4%.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a kaolinic purifying technique, is characterized in that comprising the following steps:
The first step, by kaolin and water in mass ratio routine 1:4 be placed in and smash pulp grinder and make pulp slurry;
Second step, is placed in hydrocyclone and carries out falling sand and size classification by the pulp slurry obtained in the first step;
3rd step, is placed in high gradient magnetic separator by the pulp slurry obtained in second step and carries out high-gradient magnetic separation, obtained concentrate slurries;
The concentrate slurries that 3rd step obtains are placed in rinse bath by the 4th step, add sulfuric acid and regulate the pH value of pulp slurry to be 4.5-5, are transferred in bleaching melon tank, add reductive agent and bleach;
5th step, the pulp slurry in the 4th step after bleaching adds dispersion agent and pH value adjusting agent is cleaned pulp slurry;
6th step, after adding activator and collecting agent, is placed in high-shear impeller and carries out stirring precipitation in the solution after scouring;
7th step, is undertaken the precipitation obtained in the 6th step filtering, washes, dries, and is placed between inherent 700-900 DEG C of calcining case and calcines, the kaolin after the purification after pulverizing being.
2. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 4th step, and the concentration of described sulfuric acid is 0.5-1mol/L, and the purity of described sulfuric acid is at least chemical pure.
3. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 4th step, and described reductive agent is at least one in V-Brite B, Sulfothiorine and zinc sulfite three.
4. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 5th step, and described dispersion agent is water glass.
5. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 5th step, and described pH adjusting agent is at least one in ammonium hydroxide and sodium hydroxide.
6. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 6th step, and described activator is at least one in calcium ion and magnesium ion.
7. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 6th step, and described collecting agent is at least one in alkyl hydroximic acid, tall oil, lipid acid and petroleum sodium sulfonate.
8. the kaolinic purifying technique of one according to claim 1, is characterized in that: in the 7th step, and described precipitation washing 3-4 time, is placed in baking oven and dries at 80-100 DEG C by the filter cake of sedimentation and filtration gained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159794.0A CN104743563B (en) | 2015-04-07 | 2015-04-07 | Process for purifying kaolin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159794.0A CN104743563B (en) | 2015-04-07 | 2015-04-07 | Process for purifying kaolin |
Publications (2)
| Publication Number | Publication Date |
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| CN104743563A true CN104743563A (en) | 2015-07-01 |
| CN104743563B CN104743563B (en) | 2017-01-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510159794.0A Expired - Fee Related CN104743563B (en) | 2015-04-07 | 2015-04-07 | Process for purifying kaolin |
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| Country | Link |
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| CN (1) | CN104743563B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268544A (en) * | 2015-12-01 | 2016-01-27 | 中国矿业大学 | Wide-particle-size coal series kaolinite upgrading process based on fluidization sorting |
| CN105836754A (en) * | 2016-06-03 | 2016-08-10 | 辽宁石化职业技术学院 | Method for bleaching kaolin |
| CN107042154A (en) * | 2017-06-15 | 2017-08-15 | 长沙矿冶研究院有限责任公司 | A kind of wet method processing technology of sandy kaoline |
| CN107774437A (en) * | 2017-11-16 | 2018-03-09 | 武汉理工大学 | A kind of removing iron by kaolin titanium ore-dressing technique |
| CN109336126A (en) * | 2018-12-18 | 2019-02-15 | 广西壮族自治区地质矿产测试研究中心 | Method for purifying high-iron low-grade kaolin |
| CN110407219A (en) * | 2019-08-23 | 2019-11-05 | 福建新汉唐非金属材料有限公司 | A kind of preparation process improving kaolin whiteness |
| CN111789114A (en) * | 2020-07-19 | 2020-10-20 | 江苏云帆化工有限公司 | Butylbenzene-clomazone dry suspending agent and preparation method thereof |
| CN114798182A (en) * | 2022-04-22 | 2022-07-29 | 深圳市中金岭南有色金属股份有限公司 | Activating agent for improving floating rate of tennantite and application method thereof |
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| CN101117003A (en) * | 2007-08-24 | 2008-02-06 | 中国地质大学（武汉） | Production technology of paper coating kaoline |
| CN101723391A (en) * | 2009-12-10 | 2010-06-09 | 厦门大学 | Bleaching production method for washing iron-dyed kaolin |
| CN101987480A (en) * | 2009-07-31 | 2011-03-23 | 施永义 | Preparation method of non-pickling raw kaolin ore |
| CN103086390A (en) * | 2012-11-16 | 2013-05-08 | 中国地质大学（武汉） | Technique for efficiently removing iron from kaolin |
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2015
- 2015-04-07 CN CN201510159794.0A patent/CN104743563B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101117003A (en) * | 2007-08-24 | 2008-02-06 | 中国地质大学（武汉） | Production technology of paper coating kaoline |
| CN101987480A (en) * | 2009-07-31 | 2011-03-23 | 施永义 | Preparation method of non-pickling raw kaolin ore |
| CN101723391A (en) * | 2009-12-10 | 2010-06-09 | 厦门大学 | Bleaching production method for washing iron-dyed kaolin |
| CN103086390A (en) * | 2012-11-16 | 2013-05-08 | 中国地质大学（武汉） | Technique for efficiently removing iron from kaolin |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268544A (en) * | 2015-12-01 | 2016-01-27 | 中国矿业大学 | Wide-particle-size coal series kaolinite upgrading process based on fluidization sorting |
| CN105268544B (en) * | 2015-12-01 | 2018-02-23 | 中国矿业大学 | A kind of wide grade Coaseries kaolin process for upgrading based on fluidization sorting |
| CN105836754A (en) * | 2016-06-03 | 2016-08-10 | 辽宁石化职业技术学院 | Method for bleaching kaolin |
| CN107042154A (en) * | 2017-06-15 | 2017-08-15 | 长沙矿冶研究院有限责任公司 | A kind of wet method processing technology of sandy kaoline |
| CN107774437A (en) * | 2017-11-16 | 2018-03-09 | 武汉理工大学 | A kind of removing iron by kaolin titanium ore-dressing technique |
| CN107774437B (en) * | 2017-11-16 | 2019-11-26 | 武汉理工大学 | A kind of removing iron by kaolin titanium ore-dressing technique |
| CN109336126A (en) * | 2018-12-18 | 2019-02-15 | 广西壮族自治区地质矿产测试研究中心 | Method for purifying high-iron low-grade kaolin |
| CN110407219A (en) * | 2019-08-23 | 2019-11-05 | 福建新汉唐非金属材料有限公司 | A kind of preparation process improving kaolin whiteness |
| CN111789114A (en) * | 2020-07-19 | 2020-10-20 | 江苏云帆化工有限公司 | Butylbenzene-clomazone dry suspending agent and preparation method thereof |
| CN114798182A (en) * | 2022-04-22 | 2022-07-29 | 深圳市中金岭南有色金属股份有限公司 | Activating agent for improving floating rate of tennantite and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104743563B (en) | 2017-01-11 |
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