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Preparation method of electrolyte-resistant-type complex mineral gel

A technology of composite minerals and electrolytes, applied in the direction of silicon compounds, chemical instruments and methods, colloid chemistry, etc., can solve the problems of water separation, easy occurrence of aqueous solution systems, and poor anti-electrolyte performance, so as to achieve improved stability, stable product performance, The effect of preventing collapse

Active Publication Date: 2014-03-19
苏州中材非金属矿工业设计研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a stable composite mineral gel with excellent anti-electrolyte performance in aqueous solution, so as to solve the problem that the current conventional single-component mineral gel has poor anti-electrolyte performance, which causes its aqueous solution system to easily appear Problems of stratification and water analysis

Method used

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  • Preparation method of electrolyte-resistant-type complex mineral gel
  • Preparation method of electrolyte-resistant-type complex mineral gel
  • Preparation method of electrolyte-resistant-type complex mineral gel

Examples

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Embodiment 1

[0044] Embodiment 1: A kind of preparation method of anti-electrolyte composite mineral gel

[0045] First prepare the montmorillonite gel slurry, then prepare the modified columnar mineral slurry, and finally compound the prepared montmorillonite gel slurry and the modified columnar mineral slurry; The preparation of glue liquid, the preparation of the second part of the modified columnar mineral slurry and the preparation of the third part of the composite mineral gel;

[0046] The preparation of the first part of montmorillonite gel slurry consists of the following steps:

[0047] In the first step, 200g of raw material bentonite minerals are pulverized to form bentonite mineral powder;

[0048] In the second step, the bentonite mineral powder after pulverization is added into 2000g water to make a slurry, and 0.2g sodium hexametaphosphate and 2g sodium carbonate are added to fully stir, so that the bentonite mineral particles are evenly dispersed in the slurry, wherein, ...

Embodiment 2

[0064] Embodiment 2: A kind of preparation method of anti-electrolyte composite mineral gel

[0065] First prepare the montmorillonite gel slurry, then prepare the modified columnar mineral slurry, and finally compound the prepared montmorillonite gel slurry and the modified columnar mineral slurry; The preparation of glue liquid, the preparation of the second part of the modified columnar mineral slurry and the preparation of the third part of the composite mineral gel;

[0066] The preparation of the first part of montmorillonite gel slurry consists of the following steps:

[0067] In the first step, 200g of raw material bentonite minerals are pulverized to form bentonite mineral powder;

[0068] In the second step, the pulverized bentonite mineral powder is added to 1000g water to make a slurry, and 4g of sodium silicate is added to fully stir, so that the bentonite mineral particles are evenly dispersed in the slurry, wherein the bentonite mineral in the slurry is The we...

Embodiment 3

[0090] Embodiment 3: A kind of preparation method of anti-electrolyte composite mineral gel

[0091] First prepare the montmorillonite gel slurry, then prepare the modified columnar mineral slurry, and finally compound the prepared montmorillonite gel slurry and the modified columnar mineral slurry; The preparation of glue liquid, the preparation of the second part of the modified columnar mineral slurry and the preparation of the third part of the composite mineral gel;

[0092] The preparation of the first part of montmorillonite gel slurry consists of the following steps:

[0093] In the first step, 200g of raw material bentonite minerals are pulverized to form bentonite mineral powder;

[0094] In the second step, the crushed bentonite mineral powder is added to 200g water to make a slurry, and 0.2g sodium pyrophosphate is added to fully stir, so that the bentonite mineral particles are evenly dispersed in the slurry, wherein the bentonite in the slurry is The weight rat...

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Abstract

The invention relates to a preparation method of electrolyte-resistant-type complex mineral gel. The method comprises the steps of firstly preparing bentonite minerals into ore pulp, separating and purifying, and preparing montmorillonite gel slurry, wherein the purity of the montmorillonite is 75%-95%, and the granularity of the montmorillonite is 0.01-2 microns. The method is characterized by also comprising the step of preparing modified columnar mineral slurry, namely, crushing columnar raw mineral materials including sepiolite, attapulgite, nemalite or wollastonite, adding water to prepare ore pulp, then adding polymer anionic compounds, sieving, grinding, peeling and centrifuging, adding dropwise magnesium hydroxide sol or magnesium aluminum hydroxide sol into the ore pulp, controlling the temperature to be at 50 DEG C-80 DEG C, and ageing for 1-3 days to obtain the modified columnar mineral slurry; and the step of preparing the complex mineral gel, namely mixing the montmorillonite gel slurry and the modified columnar mineral slurry to obtain the mixed slurry, ageing for 1-2 days, and spray-drying to obtain the electrolyte-resistant-type complex mineral gel, wherein the weight ratio of the montmorillonite to the modified columnar mineral is (3:1) to (1:1.5) on a dry basis. The electrolyte-resistant-type complex mineral gel prepared by the method has good electrolyte resistance.

Description

technical field [0001] The invention relates to the preparation of an inorganic gel, in particular to a preparation method of a composite mineral gel with anti-electrolyte performance. Background technique [0002] At present, conventional mineral gels mainly refer to bentonite-based mineral gels, which are colloidal products prepared from bentonite as the main raw material through separation and purification, sodium modification, phosphating modification, and gelation. . The main component of bentonite is montmorillonite. After it is processed by conventional inorganic gel preparation process, montmorillonite is highly dispersed in the water system to form particle flakes with negative charge on the layer and positive charge on the end face; End-to-face bonding in water, the edge of the small piece with weak positive charge is attracted to the surface of the small piece with negative charge, thus quickly forming a three-dimensional structure containing a large number of wa...

Claims

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Application Information

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IPC IPC(8): B01J13/00C01B33/40
Inventor 雷东升唐靖炎程卫泉杨圣军刘根扣
Owner 苏州中材非金属矿工业设计研究院有限公司
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