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CN1562865A - High pure attapulgite clay and preparation method - Google Patents

High pure attapulgite clay and preparation method Download PDF

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Publication number
CN1562865A
CN1562865A CN 200410014477 CN200410014477A CN1562865A CN 1562865 A CN1562865 A CN 1562865A CN 200410014477 CN200410014477 CN 200410014477 CN 200410014477 A CN200410014477 A CN 200410014477A CN 1562865 A CN1562865 A CN 1562865A
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purity
preparation
attapulgite
recessed
purificant
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CN1248984C (en
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金叶玲
钱运华
姚虎卿
马正飞
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Huaiyin Institute of Technology
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Abstract

本发明公开了一种高纯凹凸棒土及其制备方法,是对天然凹凸棒粘土矿通过物理化学法进行除杂提纯制备高纯凹土的方法,属于矿物资源深加工技术领域。该方法适用于以含白云石、石英砂、方解石或蛋白石等杂质为主的凹土矿,它是以一种化学试剂为提纯分散剂,配制成一定浓度的水溶液,在一定温度和机械力的作用下,加入待处理的凹土,经充分分散和反应后,再经分离、干燥,制得晶形完好、色白、纯度达99%以上的凹土。该土可作为添加剂,用于彩色油墨、印染浆料、化妆品等。

Figure 200410014477

The invention discloses a high-purity attapulgite and a preparation method thereof, which is a method for preparing high-purity attapulgite by removing impurities and purifying natural attapulgite clay ore through a physical and chemical method, and belongs to the technical field of deep processing of mineral resources. This method is suitable for attapulgite ore mainly containing impurities such as dolomite, quartz sand, calcite or opal. It uses a chemical reagent as a purification dispersant and prepares an aqueous solution of a certain concentration. Under the action, the attapulgite to be treated is added, fully dispersed and reacted, and then separated and dried to obtain the attapulgite with intact crystal form, white color and a purity of more than 99%. The soil can be used as an additive for color inks, printing and dyeing pastes, cosmetics, etc.

Figure 200410014477

Description

High-purity attapulgite and preparation method thereof
Affiliated technical field
The present invention relates to a kind of high-purity attapulgite and preparation method thereof, belong to nonmetalliferous ore deep processing field.
Background technology
Attapulgite clay is called for short the silicate that recessed soil is a kind of rich magnesium, its molecular formula [Mg 5S I8O 2o] (OH) 2(OH 2) 4.4H 2O, crystalline structure belong to 2: 1 type layer chain clay minerals, thereby give its very high use value because of its special structure and character.But because recessed soil usually and symbiosis such as rhombspar, calcite, quartz, opal, thereby directly influence its result of use and use range.
The U.S. is the state of discovery the earliest of recessed soil, also be the major country of production and the most widely used general state of research of recessed soil, purification its patent of invention U.S.Pat.No:6446601 and 6130179 about recessed Tu Kuang utilizes dispersion agent sodium polyacrylate (molecular weight 4000~5000) that recessed soil has been carried out effective dispersion purification, the domestic report that does not also have at present in this respect.
Summary of the invention
Purpose of the present invention just provides a kind of high-purity attapulgite and preparation method thereof, with the use value that improves recessed soil, expand its use range.
Technical solution of the present invention is: select for use inorganic salts as disperseing purificant, as silicate or poly-phosphate, not only with electrochemical action rhombspar, quartz etc. are effectively separated with recessed soil by absorption, also can form the titanium phosphate or the titanium silicate precipitation of black simultaneously with the band colour content titanium ion in the recessed soil by chemical reaction, make recessed soil change fish sperm look into from beige, whiteness is brought up to more than 85 from 0--40.
Purification principle of the present invention: because recessed native crystal has the good cleavage parallel with fibre axis, and layer-chain crystalline structure and fibrous fine crystals profile, Biao Mian noble potential helps aquation in addition, particularly Al 3+And Mg 2+Between extensively the having to be beneficial to and produce the active surface position and strengthen hydratability of different valency isomorphous replacement, therefore make recessed soil under impressed pressure, can fully disperse as system's shearing force or supersound process.The imbalance of surperficial inherent pore passage structure of recessed soil and surface charge forms adsorption center on recessed soil surface, therefore recessed native good adsorption performance makes and himself adsorbs big water gaging and dispersion agent and have good suspension property, thereby effectively separates with other materials such as rhombspar, quartz, calcite, opal etc.
Simultaneously, Ti 2++ Na 3PO 4Or NaSiO 3→ TiPO 4↓ or TiSiO 3↓+Na +
The method of the high-purity recessed soil of recessed Tu Kuang purification preparation is:
The recessed Tu Kuang of recessed native content>50% just is broken to 200~325 orders, is mixed with homogeneous phase solution with deionized water and dispersion purificant simultaneously, wherein disperseing the purificant consumption is 0.5%~3% of recessed Tu Kuang; Under stirring state, recessed Tu Kuang after just broken is added in the homogeneous phase solution, keeping temperature is 40~80 ℃, recessed native ore deposit add-on is 1 with the ratio of disperseing the purificant aqueous solution: 20-1: 10, alternately shear agitation and ultra-sonic oscillation repeatedly after, separate with gravity settling equipment or separating centrifuge, remove sedimentary impurity, the recessed native thickness body that obtains purifying makes loose recessed soil particle through lyophilize or vacuum-drying or spraying drying again.
Adopt the purify advantage of recessed Tu Kuang of the present invention to be:
1, purifying technique is simple and easy to do, and raw material is easy to get.
2, purification back product purity height can reach 99%, and whiteness can reach more than 85.
China Soviet Union recessed native mine belt type in Anhui mainly contains recessed soil type (impurity is for a small amount of quartzy), dolomite type, opal type, montmorillonite type, and in the class of above-mentioned various ore deposits, the massfraction of recessed soil is 10%~90%.Present method is applicable to that impurities is quartz, calcite, rhombspar, opal, and the recessed Tu Kuang of recessed native content>50%.
Description of drawings
X-diffraction before and after Fig. 1 example 1 recessed soil is purified detects figure
Scanning electron microscope detected figure before and after Fig. 2 example 1 recessed soil was purified
X-diffraction before and after Fig. 3 example 2 recessed soil are purified detects figure
Scanning electron microscope detected figure before and after Fig. 4 example 2 recessed soil were purified
Embodiment
Example 1: contain quartz 17.2%, the recessed Tu Kuang of recessed native 83.8% greyish-green, just be broken to 200 orders, by adding 40 ℃ at 1: 20, containing in the homogeneous phase aqueous solution of sodium polyphosphate 1%, after 20min mechanical stirring and 10min ultra-sonic oscillation replace each 3 times, leave standstill 30min, produce tangible canescence suspension and black precipitate layering, extract out or incline and upper strata suspension, under 80~100 ℃, carry out vacuum spray drying, make recessed native content and be 99.5%, whiteness is 87 recessed soil particle.
X-diffraction, scanning electron microscope before and after recessed soil is purified detect as depicted in figs. 1 and 2.
Example 2: the recessed Tu Kuang of the canescence filter just that contains rhombspar, quartz 47.5% is to 300 orders, contain in water glass 2.5%, 60 ℃ the homogeneous phase aqueous solution by adding at 1: 15, after 30min mechanical stirring and 20min ultra-sonic oscillation replace each 2 times, leave standstill 60min earlier, upper strata suspension is inclined to, carry out centrifugation, obtain recessed native magma, again through 40 ℃ of vacuum lyophilizations, promptly obtain recessed native content and be 90%, whiteness is 91 recessed soil particle.
X-diffraction, scanning electron microscope before and after recessed soil is purified detect as shown in Figure 3 and Figure 4.

Claims (10)

1, the preparation method of high-purity attapulgite, it is characterized in that: the clay pit that with impurity component mainly is quartz, rhombspar, lime carbonate, proteinic natural Attapulgite is after filter just, under mechanical force, its adding is mixed with in the certain density dispersion purificant aqueous solution, at a certain temperature, be prepared into the clay ore pulp of certain density Attapulgite, after fully disperseing reaction, again through the clay or the concentrated clay ore pulp of making high-purity Attapulgite that separate, drying makes high-purity Attapulgite.
2, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: it is 200~325 orders that natural recessed Tu Kuang just filters fineness.
3, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: disperseing purificant is chemical pure or analytical pure, and its composition is poly-phosphate or silicate.
4, the preparation method of high-purity attapulgite according to claim 3 is characterized in that: disperse preferred sodium polyphosphate of purificant or water glass.
5, the preparation method of high-purity attapulgite according to claim 1, it is characterized in that: the dispersion purificant aqueous solution of preparation is homogeneous phase aqueous solution, institute's water is a deionized water, temperature remains on 40~80 ℃, and disperseing the purificant consumption is 0.5%~3% of handled recessed Tu Kuang according to foreign matter content in the recessed native ore deposit.
6, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: recessed native ore deposit add-on is 1: 20~1: 10 with the ratio of disperseing the purificant aqueous solution.
7, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: the mechanical force mode that recessed native ore pulp applied is middling speed shearing force or ultra-sonic oscillation.
8, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: recessed soil fully disperses under mechanical force and under the hydration, wherein is with color substance Ti 3+With dispersion purificant generation chemical reaction, generate black TiPO 4With other impurity coprecipitation in container bottom.
9, the preparation method of high-purity attapulgite according to claim 1 is characterized in that: disperseed to adopt the mode of centrifugation or gravity settling to separate with formed impurity with the recessed soil of purifying.
10, the preparation method of high-purity attapulgite according to claim 1, it is characterized in that: the high-purity recessed soil after the separation makes required high-purity recessed soil particle by air stream drying or vacuum freezedrying or spraying drying, or makes the high-purity recessed earth material slurry of desired concn by vacuum concentration.
CN 200410014477 2004-03-27 2004-03-27 High pure attapulgite clay and preparation method Expired - Fee Related CN1248984C (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321934C (en) * 2005-06-02 2007-06-20 洛阳工业高等专科学校 Compounding for cray of playgorskite (concave-convex bar stone) and its preparation (carbonizing) process
CN101519209B (en) * 2009-03-30 2011-05-18 中国科学院等离子体物理研究所 Method for constructing attapulgite nanometer network by utilizing ion beam
CN102874826A (en) * 2012-10-18 2013-01-16 南京信息工程大学 Purification technical method for attapulgite clay
CN101787224B (en) * 2010-01-19 2013-07-17 江苏工业学院 Compound of high-whiteness clay and preparation method thereof
CN104772107A (en) * 2015-03-23 2015-07-15 广州优克日用品有限公司 Modified attapulgite material, preparation method and application thereof
CN105271270A (en) * 2014-07-01 2016-01-27 蒋寿悟 High-purity attapulgite preparation method
CN108002400A (en) * 2017-12-06 2018-05-08 潮州市华中陶瓷实业有限公司 A kind of attapulgite clay product and preparation method thereof
CN108117266A (en) * 2017-12-30 2018-06-05 安徽杜氏高科玻璃有限公司 A kind of wear-resisting acid corrosion-resistant glass

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321934C (en) * 2005-06-02 2007-06-20 洛阳工业高等专科学校 Compounding for cray of playgorskite (concave-convex bar stone) and its preparation (carbonizing) process
CN101519209B (en) * 2009-03-30 2011-05-18 中国科学院等离子体物理研究所 Method for constructing attapulgite nanometer network by utilizing ion beam
CN101787224B (en) * 2010-01-19 2013-07-17 江苏工业学院 Compound of high-whiteness clay and preparation method thereof
CN102874826A (en) * 2012-10-18 2013-01-16 南京信息工程大学 Purification technical method for attapulgite clay
CN105271270A (en) * 2014-07-01 2016-01-27 蒋寿悟 High-purity attapulgite preparation method
CN104772107A (en) * 2015-03-23 2015-07-15 广州优克日用品有限公司 Modified attapulgite material, preparation method and application thereof
CN104772107B (en) * 2015-03-23 2018-03-16 广州优克日用品有限公司 A kind of modified attapulgite soil material and its preparation method and application
CN108002400A (en) * 2017-12-06 2018-05-08 潮州市华中陶瓷实业有限公司 A kind of attapulgite clay product and preparation method thereof
CN108117266A (en) * 2017-12-30 2018-06-05 安徽杜氏高科玻璃有限公司 A kind of wear-resisting acid corrosion-resistant glass

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Granted publication date: 20060405