Production method of attapulgite suspending agent

A production method and suspending agent technology, which is applied in the production field of attapulgite suspending agent, can solve the problems of expensive bentonite raw materials, poor anti-sedimentation effect of organic bentonite, exhaustion of high-quality bentonite resources, etc., and achieve excellent colloidal properties and rheological properties , low cost and light specific gravity

Inactive Publication Date: 2018-01-26
MINGGUANG CITY HAIGANGAONI MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high surface activity of attapulgite, attapulgite is easy to agglomerate to form piled bundles, which reduces its own dispersion performance and limits its application.
[0003] In recent years, among the commonly used suspending agents for coatings, organic bentonite has the most ideal suspension property, but the anti-sedimentation effect of organic bentonite is poor, and its initiator xylene is not good for the environment
In addition, the raw materials of bentonite are relatively expensive and costly, and high-quality bentonite resources are also tending to be exhausted
The invention patent with application number 200910117414.1 discloses an attapulgite clay suspension, which is composed of attapulgite clay, other clays, chitosan and alkyl quaternary ammonium salts, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of production method of attapulgite suspension, the production method concrete steps of this attapulgite suspension are as follows:

[0021] S1: Attapulgite purification: Weigh attapulgite and add pure water, use a pulper to pre-make attapulgite into a slurry, add an appropriate amount of dispersant, and put the pre-pulled attapulgite into a sealed container , the attapulgite is fully dispersed by ultrasonic waves, the dispersed attapulgite is filtered, washed with water, the colloidal filtrate is vacuumed, and the temperature is controlled at 75°C to dry and purify;

[0022] S2: Modification of attapulgite: add an appropriate amount of 8% sodium hydroxide solution to the pure attapulgite obtained in S1, and shake it on a shaker for 2 hours. During the shaking, add ethanol solution dropwise, and the modified The solution was centrifuged, and the modified solution was washed with pure water. After washing three times, the centrifuged product was dried in an oven, ...

Embodiment 2

[0032] A kind of production method of attapulgite suspension, the production method concrete steps of this attapulgite suspension are as follows:

[0033] S1: Attapulgite purification: Weigh attapulgite and add pure water, use a pulper to pre-make attapulgite into a slurry, add an appropriate amount of dispersant, and put the pre-pulled attapulgite into a sealed container , the attapulgite is fully dispersed by ultrasonic waves, the dispersed attapulgite is filtered, washed with water, the colloidal filtrate is vacuumed, and the temperature is controlled at 75°C to dry and purify;

[0034] S2: Modification of attapulgite: add an appropriate amount of 8% sodium hydroxide solution to the pure attapulgite obtained in S1, and shake it on a shaker for 2 hours. During the shaking, add ethanol solution dropwise, and the modified The solution was centrifuged, and the modified solution was washed with pure water. After washing three times, the centrifuged product was dried in an oven, ...

Embodiment 3

[0044] A kind of production method of attapulgite suspension, the production method concrete steps of this attapulgite suspension are as follows:

[0045] S1: Attapulgite purification: Weigh attapulgite and add pure water, use a pulper to pre-make attapulgite into a slurry, add an appropriate amount of dispersant, and put the pre-pulled attapulgite into a sealed container , the attapulgite is fully dispersed by ultrasonic waves, the dispersed attapulgite is filtered, washed with water, the colloidal filtrate is vacuumed, and the temperature is controlled at 75°C to dry and purify;

[0046] S2: Modification of attapulgite: add an appropriate amount of 8% sodium hydroxide solution to the pure attapulgite obtained in S1, and shake it on a shaker for 2 hours. During the shaking, add ethanol solution dropwise, and the modified The solution was centrifuged, and the modified solution was washed with pure water. After washing three times, the centrifuged product was dried in an oven, ...

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Abstract

The invention discloses a production method of an attapulgite suspending agent. The production method comprises the following steps: S1, purifying attapulgite: weighing the attapulgite, adding pure water, and precasting the attapulgite into slurry by using a slurry producing machine; adding proper amount of a dispersing agent, putting the attapulgite which is precast into the slurry into a sealedcontainer, and sufficiently dispersing the attapulgite with ultrasonic wave; washing with water, and drying for purifying; S2, modifying the attapulgite: adding proper amount of 8 percent sodium hydroxide solution into the pure attapulgite obtained in the S1, putting a mixture on an oscillator, oscillating for 2 hours, and dropwise adding an ethanol solution while oscillating; centrifuging the modified solution, washing out the modified solution with pure water, putting a centrifugal product into a baking oven for drying, grinding and passing through a sieve with 200 meshes to obtain modifiedattapulgite; S3, preparing the attapulgite suspending agent: sufficiently mixing the attapulgite modified in the S2 with an emulsifier, a defoaming agent and a pH modifier, and sufficiently grinding and filtering a mixture with the sieve with 200 meshes, thereby obtaining the attapulgite suspending agent.

Description

technical field [0001] The invention belongs to the technical field of attapulgite suspensions, in particular to a production method of attapulgite suspensions. Background technique [0002] Attapulgite refers to a clay mineral with attapulgite as the main component. It is widely distributed all over the world. It is abundant in Jiangsu and Anhui in my country. It is a crystalline hydrated magnesium aluminum silicate mineral with unique properties. Layer chain structure features, containing Na + , Ca 2+ , Fe 3+ 、Al 3+ , The crystals are needle-like, fibrous or fibrous aggregates. The crystal structure is nano-bundle, with an average length of 800-1000nm and a width of 30-40nm. The nano-bundle structure of attapulgite has a large specific surface area and special physical and chemical properties and technological properties such as high temperature resistance and salt-alkali resistance, so it is widely used in fluid modifiers, fertilizer suspensions, adsorbents, catalytic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/43
Inventor 杨国华
Owner MINGGUANG CITY HAIGANGAONI MINING CO LTD
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