CN101314474A - Method for preparation of modified alta-mud - Google Patents
Method for preparation of modified alta-mud Download PDFInfo
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- CN101314474A CN101314474A CNA2008100681708A CN200810068170A CN101314474A CN 101314474 A CN101314474 A CN 101314474A CN A2008100681708 A CNA2008100681708 A CN A2008100681708A CN 200810068170 A CN200810068170 A CN 200810068170A CN 101314474 A CN101314474 A CN 101314474A
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- bentonite
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Abstract
The invention relates to a method for manufacturing a modified bentonite. The method comprises the following steps that: a bentonite raw material is dried and added with a modifier; the bentonite raw material added with the modifier is pulverized and ground in order that the bentonite raw material and the modifier have a chemical reaction, then the ground particles are filtered and sieved; and impurities are removed, thereby producing the modified bentonite. In the method for manufacturing the modified bentonite, a modification reaction is carried out under the dry condition without adding water; therefore, the method avoids the water addition process and required equipment, reduces equipment investment, saves water and reduces an area occupied by a workshop. In addition, the method also has the characteristics of low energy consumption, low production cost, short manufacturing process time, etc.
Description
Technical field
The present invention is about a kind of method for preparation of modified alta-mud.
Background technology
At present, wilkinite can be used for fields such as papermaking, sewage disposal, coating, drilling well, petrochemical complex, medication chemistry.
Natural montmorillonite mostly is the calcium based component, need be to its modification, to improve bentonitic surface exchange and adsorptive power.
Method of modifying commonly used at present mainly is a wet processing, promptly earlier natural montmorillonite is mixed with water, adds modified compound, makes the wilkinite product by drying at last.
Yet the wet processing water consumption is big, energy consumption is high, the treatment time is long, and needs the equipment of extra storage, distribution and control water, improves manufacturing cost thus, takies the space, workshop.In addition, also contaminate environment of the addle of discharge.
The utility model content
In view of this, be necessary to provide a kind of employing dry process, promptly in manufacturing processed, do not add water, and can shorten the method for preparation of modified alta-mud of manufacturing time, minimizing energy consumption.
A kind of method for preparation of modified alta-mud, it may further comprise the steps:
With the bentonite material drying;
In bentonite material, add modifier;
The bentonite material that adds modifier is pulverized grinding, make bentonite material and modifier generation chemical reaction, the particle after will grinding then sieves;
Remove impurity, the wilkinite after the acquisition modification.
Compared with prior art, in described method for preparation of modified alta-mud, modified-reaction carries out under the dryness condition, and it all need not to add water before and after modifier and bentonitic reaction.Exempt thus and add water process and required equipment, minimizing facility investment, water saving and minimizing workshop area occupied.In addition, the modified-reaction process is carried out in grinding, and with respect to the moist modified-reaction in the aqueous solution, present method energy consumption is lower, production cost is low.Owing to lacked and added the water time, can shorten the whole processing procedure time thus.
Description of drawings
Fig. 1 is the method for preparation of modified alta-mud schematic flow sheet of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The method for preparation of modified alta-mud that the embodiment of the invention provides may further comprise the steps:
(a) with the bentonite material drying;
(b) in bentonite material, add modifier;
(c) bentonite material that will add modifier is pulverized grinding, makes bentonite material and modifier generation chemical reaction, and the particle after will grinding then sieves;
(d) remove impurity, the wilkinite after the acquisition modification.
Particularly, see also Fig. 1, be the method for preparation of modified alta-mud schematic flow sheet of the embodiment of the invention.As shown in the figure, carrying out step (a) before, can select bentonite material earlier, for example can adopt natural calcium-base bentonite, also can adopt other bentonite materials, for example al bentonite certainly according to the actual production demand.
In actual manufacturing processed, the drying of bentonite material can be in step (b) afterwards, interts in step (d) arbitrary process before and carry out.The moisture that it is 30-40% that common bentonite material contains about weight umber, drying temperature is purpose with the dehydration, for example can be about 80-100 °, moisture content after drying in the bentonite material is reduced to parts by weight and is about 10-15%, and this water yield can be controlled by the content of measuring water in the dried product exhibited.
Then, in bentonite material, add modifier, bentonite material is mixed mutually with modifier.Modifier adopts for example alkali metal sulfates, alkaline carbonate, alkali metal halide or its any mixture.Alkali metal sulfates comprises Lithium Sulphate, sodium sulfate or vitriolate of tartar.Alkaline carbonate comprises Quilonum Retard, yellow soda ash or salt of wormwood.Alkali metal halide comprises lithium chloride, sodium-chlor, Repone K, lithium fluoride, Sodium Fluoride, Potassium monofluoride, lithiumbromide, Sodium Bromide or Potassium Bromide etc.In the actual production process, can select suitable chemical modification thing according to product needed.For example, when the needs modification becomes sodium bentonite, then sodium salts such as sodium-chlor, sodium sulfate, yellow soda ash or Sodium Fluoride can be adopted, when the needs modification becomes lithium bentonite, then lithium salts such as lithium chloride, sulfuric acid, Quilonum Retard or lithium fluoride can be adopted, other and the like.When bentonite material is aluminium base wilkinite, then adopt yellow soda ash, yellow soda ash or salt of wormwood etc. as modifier, so that al bentonite is carried out modification.
In step (c), the bentonite material that will add modifier is earlier pulverized, and for example adopts pulverizer to carry out pulverization process, bentonite material is reached be broken into smaller particles.Particle after then will pulverizing grinds, in process of lapping, bentonite material can with modifier generation chemical reaction, it mainly is replacement(metathesis)reaction, the calcium salt that is about in the calcium-base bentonite is replaced into sodium salt or lithium salts, be sodium bentonite and lithium bentonite, and calcium ion and sulfate anion, chlorion etc. are combined into the little compound of solubleness.Therefore, the modifier of the embodiment of the invention is not limited to above-mentioned several compound, can also be sodium sulphite, potassium sulphide etc. can with the compound of calcium salt generation replacement(metathesis)reaction.
Particle after will grinding then sieves, and after grinding, the bentonite in powder granularity reaches 98-99% can pass through the 100-300 mesh sieve, and present embodiment adopts 200 mesh sieves.This present embodiment that sieves is called scalping.
Then carry out dusting cover again and handle, promptly more than the front scalping by the order number, the sieve that sieve aperture is littler.Particularly, behind the process dusting cover, in wilkinite dry powder screenings, particle diameter is that the particulate quality percentage composition more than 45 microns is advisable less than 0.2%.
In the method for preparation of modified alta-mud of present embodiment, modified-reaction carries out under the dryness condition, need not after modifier adds wilkinite, before reacting, they add water, exempt thus and add water process and required equipment, minimizing facility investment, water saving and minimizing workshop area occupied.And the modified-reaction process carries out in grinding, and with respect to the moist modified-reaction in the aqueous solution, the method energy consumption of present embodiment is lower, production cost is low.Owing to lacked and added the water time, can shorten the whole processing procedure time thus.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method for preparation of modified alta-mud, it may further comprise the steps:
With the bentonite material drying;
In bentonite material, add modifier;
The bentonite material that adds modifier is pulverized grinding, make bentonite material and modifier generation chemical reaction, the particle after will grinding then sieves;
Remove impurity, the wilkinite after the acquisition modification.
2, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, described drying step be before adding modifier, carry out or sieving before carry out.
3, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, described bentonite material is the natural calcium base bentonite.
4, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, described modifier comprises alkali metal sulfates, alkaline carbonate, alkali metal halide or their any mixture.
5, method for preparation of modified alta-mud as claimed in claim 4 is characterized in that, described alkali metal sulfates comprises Lithium Sulphate, sodium sulfate or vitriolate of tartar.
6, method for preparation of modified alta-mud as claimed in claim 4 is characterized in that, described alkali metal halide comprises lithium chloride, sodium-chlor or Repone K.
7, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, it is 10-15% that described drying step is reduced to mass percent with the moisture content of bentonite material.
8, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, described sieving is through the 100-300 mesh sieve with the bentonite material after the milled processed.
9, method for preparation of modified alta-mud as claimed in claim 8 is characterized in that, described sieving makes the bentonite material of 98-99.95% through 200 mesh sieves.
10, method for preparation of modified alta-mud as claimed in claim 1 is characterized in that, removes the impurity step and comprises: with the wilkinite classification, remove the powder bigger than bentonite clay particle; Sieve, making granularity in the screenings is that particulate quality percentage composition more than 45 microns is less than 0.2%.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100681708A CN101314474A (en) | 2008-07-01 | 2008-07-01 | Method for preparation of modified alta-mud |
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| CNA2008100681708A CN101314474A (en) | 2008-07-01 | 2008-07-01 | Method for preparation of modified alta-mud |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817535B (en) * | 2009-05-25 | 2012-05-30 | 甘肃银光聚银化工有限公司 | Method for preparing modified bentonite |
| CN102765730A (en) * | 2012-08-02 | 2012-11-07 | 中国科技开发院广西分院 | Preparation method of high-performance multipurpose modified bentonite |
| CN103833043A (en) * | 2014-02-28 | 2014-06-04 | 河海大学 | Sodium modifying method of calcium bentonite |
| CN103896293A (en) * | 2014-03-26 | 2014-07-02 | 芜湖恒杰膨润土科技有限公司 | Novel sodium modification process of bentonite |
| CN106241824A (en) * | 2016-08-05 | 2016-12-21 | 中山市恒辉自动化科技有限公司 | The chemical industry of a kind of bentonite sodium metallization processes processes former |
| CN106698449A (en) * | 2016-12-22 | 2017-05-24 | 芜湖恒杰膨润土科技有限公司 | Preparation process of lithium-based bentonite |
| CN107384438A (en) * | 2017-08-25 | 2017-11-24 | 芜湖飞尚非金属材料有限公司 | A kind of preparation method of bentonite soil conditioner |
| CN108394914A (en) * | 2018-04-18 | 2018-08-14 | 句容康泰膨润土有限公司 | A kind of bentonitic acidification technique |
| CN109971491A (en) * | 2019-04-26 | 2019-07-05 | 王勇 | A kind of engineering slurry bentonite in powder and its production and processing method |
| CN110510622A (en) * | 2019-09-19 | 2019-11-29 | 营口风光新材料股份有限公司 | A method of sodium bentonite is prepared using chemical byproduct sodium salt |
-
2008
- 2008-07-01 CN CNA2008100681708A patent/CN101314474A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817535B (en) * | 2009-05-25 | 2012-05-30 | 甘肃银光聚银化工有限公司 | Method for preparing modified bentonite |
| CN102765730A (en) * | 2012-08-02 | 2012-11-07 | 中国科技开发院广西分院 | Preparation method of high-performance multipurpose modified bentonite |
| CN103833043A (en) * | 2014-02-28 | 2014-06-04 | 河海大学 | Sodium modifying method of calcium bentonite |
| CN103833043B (en) * | 2014-02-28 | 2015-10-28 | 河海大学 | A kind of calcium-base bentonite sodium modification method |
| CN103896293A (en) * | 2014-03-26 | 2014-07-02 | 芜湖恒杰膨润土科技有限公司 | Novel sodium modification process of bentonite |
| CN103896293B (en) * | 2014-03-26 | 2016-03-09 | 芜湖恒杰膨润土科技有限公司 | A kind of bentonite sodium base metallization processes |
| CN106241824A (en) * | 2016-08-05 | 2016-12-21 | 中山市恒辉自动化科技有限公司 | The chemical industry of a kind of bentonite sodium metallization processes processes former |
| CN106241824B (en) * | 2016-08-05 | 2017-12-08 | 中山市恒辉自动化科技有限公司 | A kind of chemical industry processing former of bentonite sodium chemical industry skill |
| CN106698449A (en) * | 2016-12-22 | 2017-05-24 | 芜湖恒杰膨润土科技有限公司 | Preparation process of lithium-based bentonite |
| CN106698449B (en) * | 2016-12-22 | 2019-04-30 | 芜湖恒杰膨润土科技有限公司 | A kind of lithium bentonite preparation process |
| CN107384438A (en) * | 2017-08-25 | 2017-11-24 | 芜湖飞尚非金属材料有限公司 | A kind of preparation method of bentonite soil conditioner |
| CN108394914A (en) * | 2018-04-18 | 2018-08-14 | 句容康泰膨润土有限公司 | A kind of bentonitic acidification technique |
| CN109971491A (en) * | 2019-04-26 | 2019-07-05 | 王勇 | A kind of engineering slurry bentonite in powder and its production and processing method |
| CN110510622A (en) * | 2019-09-19 | 2019-11-29 | 营口风光新材料股份有限公司 | A method of sodium bentonite is prepared using chemical byproduct sodium salt |
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Application publication date: 20081203 |