Dry-type preparation method of modified bentonite

A bentonite and modified technology, which is applied in the field of dry preparation of modified bentonite, can solve the problems affecting the quality of bentonite, the complete reaction between modifier and bentonite, etc., so as to improve various indicators, increase expansion capacity and colloid price, and improve the quality of bentonite. Effects of Adhesive and Colloidal Properties

Pending Publication Date: 2021-11-23
苏州欧亦博工业科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] But in above-mentioned prior art, although it has improved the mixing efficiency between bentonite and modifier, can't make the reaction between modifier and bentonite completely, and then influence the quality of bentonite

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  • Dry-type preparation method of modified bentonite

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Embodiment Construction

[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only and in no way restrictive of the invention, its application or uses. The present invention can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0022] "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to disting...

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Abstract

The invention provides a dry-type preparation method of modified bentonite, which comprises the following steps: pretreating raw materials: manually picking out large impurities mixed in bentonite raw ore, and naturally conducting airing; crushing raw materials: selecting bentonite raw ore, and crushing the bentonite raw ore into particles; conducting sodium modification: uniformly spraying a solution prepared from a modifier into bentonite particles; performing extrusion treatment, namely putting the modified bentonite into extrusion equipment, and performing extrusion until the modified bentonite is uniform; conducting stacking reaction: stacking the bentonite subjected to extrusion treatment in a special site for aging reaction; conducting drying: drying the bentonite under a heating environment condition; conducting crushing and grinding: grinding the dried bentonite into fine particles; and conducting grading and packaging: after grinding, carrying out winnowing and grading, and then carrying out packaging treatment. The bentonite produced by the preparation method can meet use requirements, various indexes of raw ore are improved, and certain economic benefits are created for bentonite production.

Description

technical field [0001] The invention belongs to the technical field of bentonite production, and in particular relates to a dry preparation method of modified bentonite. Background technique [0002] Bentonite is a fine-grained silicate clay mineral mainly composed of montmorillonite. Because of its physical and chemical properties such as good adsorption, large water-based swelling and strong ion exchange, it is widely used in many fields such as metallurgy, environmental protection, machinery, etc. field. In order to obtain bentonite with superior performance, bentonite can be modified by physical and chemical methods to change its structure and surface characteristics to adapt to different use requirements. [0003] In the prior art, the Chinese utility model patent with the application number CN201710733091.3 discloses a preparation method of sodium bentonite. The specific steps are: grinding the calcium-based bentonite raw ore into powder, and then modifying it with po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/40
CPCC01B33/40
Inventor 史国平
Owner 苏州欧亦博工业科技有限公司
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