CN103145139B - Viscosity reducer for improving viscosity of kaolin, and its preparation method - Google Patents
Viscosity reducer for improving viscosity of kaolin, and its preparation method Download PDFInfo
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- CN103145139B CN103145139B CN201310055276.5A CN201310055276A CN103145139B CN 103145139 B CN103145139 B CN 103145139B CN 201310055276 A CN201310055276 A CN 201310055276A CN 103145139 B CN103145139 B CN 103145139B
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Abstract
The invention relates to a viscosity reducer for improving the viscosity of kaolin, and its preparation method. The viscosity reducer is composed of 18-35wt% of sodium hexametaphosphate, 55-75wt% of sodium polyacrylate, 5-11wt% of borax, 0.01-0.05wt% of sodium hydroxide and 0.005-0.015wt% of methyl blue. The preparation method of the viscosity reducer comprises the following steps: weighing sodium hexametaphosphate, sodium polyacrylate and borax according to the respective weight percentages, adding the above three medicines to a barrel provided with water in sequence under stirring, dissolving the three medicines, supplementing water to the barrel to make the total solid content of the three medicines in water in a range of 8-20%, stirring, adding sodium hydroxide in a dropwise manner to the barrel, adding methyl blue in a dropwise manner, and continuously stirring until uniform mixing in order to prepare the finished viscosity reducer. The viscosity reducer improves the fluidity of kaolin used in the papermaking industry and reduces the viscosity of kaolin on the premise that the whiteness of kaolin is not lower than 90% and the content of particles having granularities of below 2mum is not lower than 90%, and the viscosity of kaolin added with the viscosity reducer under a 500mPa.s condition can reach above 70.2%.
Description
Technical field
The present invention relates to the industries such as papermaking, coating and glue with kaolin deep processing field, be specifically related to a kind of viscosity-depression agent for improvement of kaoline viscosity and preparation method thereof, this viscosity-depression agent can improve kaolinic mobility.
Background technology
Kaolin is that paper industry production high grade coated paper is opened one of best white mineral pigment, owing to thering is the characteristics such as good wetting ability, high fineness, high whiteness, inertia strong and sheet, laminate structure, in paper application, showing good printing performance, oil suction China ink, glossiness and planeness, is the irreplaceable high quality raw material of other mineral fillers.
China finds and uses kaolinic country the earliest, and kaolin resource is quite abundant.But due to minerogentic condition difference, domestic kaolin is mainly used in the industries such as electroceramics, refractory materials, petrochemical complex, smelting iron and steel, rubber plastic and partial coating, paint, and in English, Mei Deng developed country, kaolin is widely used in filler and the coating of papermaking.Kaolin Main physical performance index in high-grade papermaking paint are whiteness, granularity and viscosity, require that whiteness is more than or equal to 90%, granularity-2 micron content is more than or equal to 90%, " two 90 " product that we often say.Equally, kaolinic viscosity is also equally important with whiteness, size indicator.China's kaolin industry is during the State's Ninth Five-Year Plan period, once utilized advanced bleaching technology, centrifugal classification technology and Peeling Technology, the indices such as the kaolinic whiteness of coating level, purity, fineness of producing have reached international standards, high, the poor fluidity of viscosity only, and fail for many years to break through.Enter after this century, linear velocity that China's paper industry is generally introduced coating machine is higher, production capacity is larger, this just requires, and kaolinic flowing property is better, purity is higher, industrialization is larger, in the hope of the good printing quality of paper, higher unit grammes per square metre and stable product quality.
With regard to high-grade paper making and cloth coating, with regard to kaolin, the solid content of viscosity concentration value in the time of 500mPas must reach the 70% normal service requirements that could meet import coating machine, and the paper product quality of production could conformance with standard requirement.Simultaneously, require kaolinic mineral structure not to be damaged, whiteness, fineness and other physicalies and application performance are unaffected, that adds is interference-free in White Board production process for improving the medicament such as viscosity-depression agent of kaolin mobility, and can meet operation, the service requirements such as safely of environmental protection, Occupational health.At present, the method for improving kaoline viscosity mainly contains following several: the one, select the viscosity reduction device processes kaolin minerals such as viscosity-reducing machine, and improve the mobility of mineral; The 2nd, add medicament and improve the pH value of mineral; The 3rd, in the time selecting kaolin raw material, select the kaolin mineral of sheet structure, etc.But no matter adopt which kind of method, kaolinic viscosity concentration index is difficult to reach the service requirements of paper industry.China's paper industry exists all the time the not high problem of coating level kaolin product class in evolution, mainly refers to the problem that poor fluidity or viscosity are high.Solve technical problem the Industry Promotion application of kaoline viscosity, have very important meaning for the fast development of high-grade paper product provides the supporting raw material of high-quality, the fast development of promotion paper industry.For this reason, how to design a kind of viscosity-depression agent for improvement of kaoline viscosity and preparation method thereof and become the problem of the present invention's research.
Summary of the invention
The object of the invention is to provide a kind of viscosity-depression agent for improvement of kaoline viscosity and preparation method thereof, has solved current paper industry kaolin poor fluidity, problem that viscosity is high.
For achieving the above object, the technical scheme that a kind of viscosity-depression agent for improvement of kaoline viscosity of the present invention adopts is: in described viscosity-depression agent, the formula of effective active composition is made up of the component of following weight percent:
Sodium hexametaphosphate 99 18 ~ 35%;
Sodium polyacrylate 55 ~ 75%;
Borax 5 ~ 11%;
Sodium hydroxide 0.01 ~ 0.05%;
Methylene blue 0.005 ~ 0.015%.
Related content in technique scheme is explained as follows:
1, in such scheme, in viscosity-depression agent of the present invention effective active composition refer to kaolin play viscosity reduction effect, for improving the activeconstituents of kaolin mobility, effective active composition is made up of Sodium hexametaphosphate 99, sodium polyacrylate, borax, sodium hydroxide and Methylene blue.
2, in such scheme, viscosity is to characterize internal fluid because internal friction effect hinders the important physical parameter that it flows relatively, the statement of kaolinic viscosity characteristics has two kinds of methods: a kind of is that viscosity number during with a certain solid content represents, another kind is that the solid content viscosity concentration during with a certain viscosity number represents.Kaolinic viscosity number η (unit is mPas) or viscosity concentration c (unit is %) all represent kaolinic flowing property, due to
be negative correlativing relation with c, calculate the solid content of sample when the 500mPas according to corresponding solid content and viscosity number.Kaoline viscosity concentration value is higher, shows that viscosity is lower, and mobility is better, and the surface covered in the time of coating papermaking is faster, and paper has good smoothness.
3,, in such scheme, in described viscosity-depression agent formula, the better weight percent of Sodium hexametaphosphate 99 is 20 ~ 30%.
4,, in such scheme, the addition manner of described viscosity-depression agent has much relations to the quality of improving kaoline viscosity (being mobility).The viscosity-depression agent of the present invention development is added on best results in the kaolin concentrate slurry after bleaching, and the addition of viscosity-depression agent is depending on kaolinic original viscosity, generally, addition be in concentrate slurry kaolin weight 0.5 ~ 2.0%.Wherein, the kaolin concentrate slurry after bleaching of the present invention refers to kaolin raw ore at the concentrate obtaining after slurrying, classification, super-fine classified, flocculation, bleaching.
For achieving the above object, the technical scheme that the preparation method of a kind of viscosity-depression agent for improvement of kaoline viscosity of the present invention adopts is: according to the above-described viscosity-depression agent for improvement of kaoline viscosity, by Sodium hexametaphosphate 99, after three kinds of medicaments of sodium polyacrylate and borax weigh according to weight percent separately, under agitation condition with Sodium hexametaphosphate 99, the front and back order of sodium polyacrylate and borax adds respectively in the container that water is housed, then after described three kinds of medicament dissolutions, in container, add water, the total solid content that makes the described three kinds of medicaments in water is 8 ~ 20%, stir after 15 ~ 50 minutes, in container, drip sodium hydroxide, and then dropping Methylene blue, making the weight percent of sodium hydroxide in the effective active composition of described viscosity-depression agent is 0.01 ~ 0.05%, the weight percent of Methylene blue is 0.005 ~ 0.015%, continue to be stirred to after mixing and make described viscosity-depression agent finished product.
Related content in technique scheme is explained as follows:
1, in such scheme, described total solid content refers to Sodium hexametaphosphate 99, sodium polyacrylate and three kinds of medicament solid content value sums of borax, wherein, solid content refers to emulsion or coating under prescribed condition, dry after remainder account for the mass percent of total amount, in fact make " non-volatile part content " more definite.
Design concept of the present invention is: kaolinic main ingredient is kaolinite, 7A halloysite and 10A halloysite, and component and viscosity that kaolin contains have direct relation.In the time that kaolinite content is high, if kaolinite is false hexagonal flake structure, interlayer structure power is poor, and kaolinic viscosity is low, if kaolinite is needle-like or tubular structure, kaolinic viscosity is high; In the time that halloysite content is high, kaolinic viscosity is high.For the kaolin of papermaking paint, best particle size distribution is 1 ~ 2 micron, because 0.5 micron of following kaolin particle is too thin, can affect paper surface properties; Meanwhile, granularity is thinner, and viscosity is higher.Kaolin Main physical performance index in high-grade papermaking paint are whiteness, granularity and viscosity, require that whiteness is more than or equal to 90%, granularity-2 micron content is more than or equal to 90%.And the present invention will make exactly kaolin product have good whiteness and granularity has good viscosity characteristics simultaneously.
The unit layer of kaolinite structure is by a slice Si-O tetrahedron and a slice Al-(O, OH) octahedron is combined into, structural unit layer continues on a axle and b direction of principal axis, stacking in c-axis direction, therefore kaolinite has double electrical layers, and pH when pure kaolin Zeta potential equals zero is 4.8, in the time that adjustment pH leaves this iso-electric point, just produce charge unbalance, thereby cause the mutual repulsion of kaolin particle.The viscosity-depression agent of the present invention's development is joined in kaolin ore pulp, changed kaolinic Zeta potential, weaken the bond energy of kaolin particle, make kaolin particle in monomer dispersion state, improved the mobility of ore pulp.Wherein, in the formula of viscosity-depression agent of the present invention, Sodium hexametaphosphate 99 and sodium polyacrylate have dissemination, can make kaolin slurry fully disperse, and can make the viscosity characteristics of kaolin product improve simultaneously; In formula, borax mainly plays the effect that reduces kaolin product viscosity; In formula, sodium hydroxide mainly plays lubrication for kaolin, makes kaolin product be meta-alkalescence simultaneously, kaolinic good fluidity under the condition of meta-alkalescence; Methylene blue plays whitening effect for kaolin product, to keep the whiteness of kaolin product.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect: a kind of viscosity-depression agent for improvement of kaoline viscosity provided by the invention and preparation method thereof, can improve the kaolinic mobility of paper industry, can reduce kaolinic viscosity, wherein, the whiteness of kaolin concentrate of having added viscosity-depression agent of the present invention being more than or equal to 90%, granularity-2 micron content is more than or equal under 90% prerequisite, its viscosity concentration under 500mPas condition can reach more than 70.2%.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment mono-~ embodiment tri-: a kind of viscosity-depression agent for improvement of kaoline viscosity and preparation method thereof
Preparation method: according to the formula of table 1 by Sodium hexametaphosphate 99, after three kinds of medicaments of sodium polyacrylate and borax weigh up according to weight percent separately, under agitation condition with Sodium hexametaphosphate 99, the front and back order of sodium polyacrylate and borax adds respectively in the bucket that water is housed, then after described three kinds of medicament dissolutions, in bucket, add water, the total solid content that makes the described three kinds of medicaments in water is 8 ~ 20%, stir after 15 ~ 50 minutes, in bucket, drip sodium hydroxide according to the formula of table 1, and then dropping Methylene blue, continue to be stirred to after mixing and make described viscosity-depression agent finished product.Embodiment mono-~ embodiment tri-has all prepared the viscosity-depression agent for improvement of kaoline viscosity of 1000 grams.
Composition of raw materials is made up of the material of following weight part:
The viscosity-depression agent formula of table 1: embodiment mono-～embodiment tri-(unit: gram)
| Project | Example one | Example two | Example three |
| Sodium hexametaphosphate 99 | 199.45 | 180 | 350 |
| Sodium polyacrylate | 750 | 709.82 | 550 |
| Borax | 50 | 110 | 99.6 |
| Sodium hydroxide | 0.5 | 0.1 | 0.3 |
| Methylene blue | 0.05 | 0.08 | 0.1 |
Prepare after viscosity-depression agent, take the Kaolin of Suzhou sample of two parts of same viscosity higher, 1000 grams of every duplicate samples, a copy of it is used for measuring kaolinic original viscosity, under 500mPas condition, viscosity concentration determination value is 40%, and viscosity represents by viscosity concentration, and the measuring method of viscosity concentration is referring to the 27th page of GB/T 14563-2008 " kaolin and test method thereof ".An other duplicate samples is placed in to agitation vat, the 3000ml that adds water, and add the dispersion agent of some amount and kind, and to stagnate 10 minutes, decant once every 10 minutes decants, repeats 3 ~ 4 times later, and throw out is lost and obtained suspension.And then take out part suspension and carry out viscosity and measuring brightness, the measuring method of whiteness is referring to the 21st page of GB/T 14563-2008 " kaolin and test method thereof "; Remainder adds appropriate flocculation agent and SYNTHETIC OPTICAL WHITNER, after question response completes, this ore pulp is divided into two, and one of them carries out viscosity and measuring brightness; Second half is another is divided into three, and the viscosity-depression agent that adds respectively embodiment mono-to embodiment tri-to prepare, treats that ore pulp fully activates, and carries out respectively viscosity and measuring brightness, measures numerical value and sees the following form 2:
Table 2: sample viscosity and whiteness index determining (unit: %)
| Project | Viscosity concentration (under 500mPas condition) | Whiteness | Remarks |
| Suspension | 62.5 | 85.2 | ? |
| Bleaching sample | 63.2 | 89.5 | ? |
| Add viscosity-depression agent sample one | 70.2 | 91.5 | Addition 1.00% |
| Add viscosity-depression agent sample two | 70.4 | 91.8 | Addition 1.05% |
| Add viscosity-depression agent sample three | 70.4 | 91.7 | Addition 1.10% |
As seen from Table 2, wherein, suspension just refers to that kaolin raw ore is at the ore pulp solution making through slurrying, classification and after adding dispersion agent, and the viscosity concentration value of suspension is higher than the original viscosity concentration of kaolin sample, represents that the viscosity of suspension is low, bleaching sample refers to kaolin raw ore through slurrying, classification and add after dispersion agent, then adds the concentrate slurry making after flocculation agent and SYNTHETIC OPTICAL WHITNER, as seen from Table 2, add after flocculation agent and SYNTHETIC OPTICAL WHITNER, and kaolinic viscosity, while whiteness uprises, add viscosity-depression agent sample one, what interpolation viscosity-depression agent sample two and interpolation viscosity-depression agent sample three represented respectively is in concentrate slurry, to add embodiment mono-again, the final sample of gained after the viscosity-depression agent that embodiment bis-and embodiment tri-prepare, wherein, the addition that adds viscosity-depression agent in viscosity-depression agent sample one be in concentrate slurry kaolin weight 1.00%, the addition that adds viscosity-depression agent in viscosity-depression agent sample two be in concentrate slurry kaolin weight 1.05%, the addition that adds viscosity-depression agent in viscosity-depression agent sample three be in concentrate slurry kaolin weight 1.10%, the viscosity concentration value of these three final samples is all more than 70%, whiteness value is all more than 91%, after showing to add viscosity-depression agent, kaolinic viscosity is lower, good fluidity, and whiteness is good.
Embodiment tetra-~ embodiment five: a kind of viscosity-depression agent for improvement of kaoline viscosity and preparation method thereof
The formula of viscosity-depression agent is shown in Table 3, and embodiment tetra-and embodiment five have all prepared the viscosity-depression agent for improvement of kaoline viscosity of 100 tons.
The viscosity-depression agent formula (unit: ton) of table 3: embodiment tetra-and embodiment five
| Project | Example four | Example five |
| Sodium hexametaphosphate 99 | 30 | 25.448 |
| Sodium polyacrylate | 59.965 | 65.5 |
| Borax | 10 | 9 |
| Sodium hydroxide | 0.02 | 0.04 |
| Methylene blue | 0.015 | 0.012 |
The preparation method of embodiment tetra-and embodiment five viscosity-depression agents is identical with embodiment mono-~ embodiment tri-.
Choose the kaolin raw ore that under 500 mPas conditions, original viscosity concentration is 40%, produce kaolin concentrate by existing processes, in the kaolin concentrate making, add the viscosity-depression agent that embodiment tetra-prepares again, the kaolin sample finally making is delivered to Shanghai Jiangnan Paper Mill Technology Section and is done product detection, detects index as follows:
Moisture is 0.61%; Whiteness is 90.10%; PH is 3.68; Loss on ignition is 14.35%; 45 tm screen surpluses are 0.03%; Being less than 2 microns of content is 90.53%; 1.2488 microns of median sizes; Sandstone amount is 0.09%; Fe
2o
3content is 0.23%; Al
2o
3content is 37.56%; SiO
2content is 45.36%; Viscosity concentration is under 70.76%(500 mPas condition).
For viscosity-depression agent that development is described is better to kaolinic action effect, choose again the kaolin raw ore that under 500 mPas conditions, original viscosity concentration is 42%, produce by existing processes, be kaolin raw ore is obtaining concentrate after slurrying, classification, super-fine classified, flocculation, bleaching, in the kaolin concentrate making, add the viscosity-depression agent that embodiment five prepares again, produce altogether more than 150 ton of high-grade paper making and cloth coating kaolin product.Through Suzhou paper company flow test, effect is fine, can substitute U.S.'s kaolin completely.And this sample is delivered to Shanghai Jiangnan Paper Mill Technology Section and make viscosity concentration and whiteness test.Detected result is as follows:
Whiteness is 90.3%; Viscosity concentration is under 70.57%(500 mPas condition).
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. for improvement of a viscosity-depression agent for kaoline viscosity, it is characterized in that: in described viscosity-depression agent, the formula of effective active composition is made up of the component of following weight percent:
Sodium hexametaphosphate 99 18 ~ 35%;
Sodium polyacrylate 55 ~ 75%;
Borax 5 ~ 11%;
Sodium hydroxide 0.01 ~ 0.05%;
Methylene blue 0.005 ~ 0.015%;
Described viscosity-depression agent is added in the kaolin concentrate slurry after bleaching, addition be in concentrate slurry kaolin weight 0.5 ~ 2.0%.
2. a kind of viscosity-depression agent for improvement of kaoline viscosity according to claim 1, is characterized in that: in described formula, the weight percent of Sodium hexametaphosphate 99 is 20 ~ 30%.
3. the preparation method for improvement of the viscosity-depression agent of kaoline viscosity, it is characterized in that: the viscosity-depression agent for improvement of kaoline viscosity according to claim 1, by Sodium hexametaphosphate 99, after three kinds of medicaments of sodium polyacrylate and borax weigh according to weight percent separately, under agitation condition with Sodium hexametaphosphate 99, the front and back order of sodium polyacrylate and borax adds respectively in the container that water is housed, then after described three kinds of medicament dissolutions, in container, add water, the total solid content that makes the described three kinds of medicaments in water is 8 ~ 20%, stir after 15 ~ 50 minutes, in container, drip sodium hydroxide, and then dropping Methylene blue, making the weight percent of sodium hydroxide in the effective active composition of described viscosity-depression agent is 0.01 ~ 0.05%, the weight percent of Methylene blue is 0.005 ~ 0.015%, continue to be stirred to after mixing and make described viscosity-depression agent finished product.
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| CN108676386B (en) * | 2018-05-04 | 2020-11-10 | 内蒙古超牌建材科技有限公司 | Low-viscosity calcined kaolin, low-viscosity calcined kaolin slurry and preparation method thereof |
| CN110616062A (en) * | 2019-10-22 | 2019-12-27 | 湖北富邦科技股份有限公司 | Additive for long-distance conveying of high-concentration phosphorus ore pulp |
| CN113953025A (en) * | 2021-10-11 | 2022-01-21 | 中铝中州铝业有限公司 | Method for grinding viscous bauxite |
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Non-Patent Citations (6)
| Title |
|---|
| 提高造纸用高岭土粘浓度及分散特性的研究;朱小燕等;《武汉理工大学学报》;20071031;第29卷(第10期);149-152 * |
| 朱小燕等.提高造纸用高岭土粘浓度及分散特性的研究.《武汉理工大学学报》.2007,第29卷(第10期),149-152. |
| 谢静思等.高岭土降粘试验研究.《中国非金属矿工业导刊》.2007,(第3期),28-31. |
| 造纸涂料用高岭土降低粘度的试验研究;雷东升等;《中国非金属矿工业导刊》;20061231(第2期);21-24 * |
| 雷东升等.造纸涂料用高岭土降低粘度的试验研究.《中国非金属矿工业导刊》.2006,(第2期),21-24. |
| 高岭土降粘试验研究;谢静思等;《中国非金属矿工业导刊》;20071231(第3期);28-31 * |
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