Novel sodium modification process of bentonite

Abstract

The invention aims to provide a novel sodium modification process of bentonite. The process comprises the following steps: firstly, mining bentonite raw materials, screening and drying; smashing; sequentially carrying out primary sodium modification on the smashed raw materials; and then carrying out secondary sodium modification on the smashed raw materials in a multilayer treatment gestation manner so as to obtain the bentonite with sodium modification. The process is simple and effective; the drying treatment is not required, thereby saving energy sources. The bentonite raw materials are subjected to sodium modification twice in the multilayer treatment gestation manner, so that the sodium-based bentonite with homogeneous sodium modification and a sufficient sodium modification effect is obtained. The sodium modification homogeneity of the bentonite can reach above 96%.

Description

technical field

[0001] The invention relates to the processing field of natural bentonite, in particular to a novel sodium-based process of bentonite. Background technique

[0002] Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. Some cations, such as Cu, Mg, Na, K, etc., exist in the layered structure formed by the montmorillonite unit cell. The role of cations is very unstable and easily exchanged by other cations, so it has good ion exchange properties. It has been used in more than 100 departments in 24 fields of industrial and agricultural production in foreign countries, and there are more than 300 products, so people call it "universal soil".

[0003] The type of interlayer cation of bentonite determines the type of bentonite, and the interlayer cation is Na + It is called sodium bentonite; the interlayer cation is Ca 2+ It is sometimes called calcium-based bentonite; among them, the process performance of sodium-based bentoni...

Examples

Embodiment Construction

[0015] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0016] The present embodiment provides a novel sodium-based bentonite process, comprising the following steps:

[0017] Step 1: Mining out bentonite first, screening to obtain bentonite raw materials;

[0018] Step 2: spread the bentonite raw material on the hard field base and dry it in the sun;

[0019] Step 3: After drying in the sun, carry out milling treatment. The milling process is accompanied by stirring and screening to remove large particles, and then sodiumizing machine plus sodium carbonate is used for a sodiumizing process;

[0020] Step 4: After the first sodiumization is completed, spread part of the bentonite on the hard field base, and then spray sodium carbonate and ben...

technical field

[0001] The invention relates to the processing field of natural bentonite, in particular to a novel sodium-based process of bentonite. Background technique

[0002] Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. Some cations, such as Cu, Mg, Na, K, etc., exist in the layered structure formed by the montmorillonite unit cell. The role of cations is very unstable and easily exchanged by other cations, so it has good ion exchange properties. It has been used in more than 100 departments in 24 fields of industrial and agricultural production in foreign countries, and there are more than 300 products, so people call it "universal soil".

[0003] The type of interlayer cation of bentonite determines the type of bentonite, and the interlayer cation is Na + It is called sodium bentonite; the interlayer cation is Ca 2+ It is sometimes called calcium-based bentonite; among them, the process performance of sodium-based bentoni...

Examples

Embodiment Construction

[0015] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0016] The present embodiment provides a novel sodium-based bentonite process, comprising the following steps:

[0017] Step 1: Mining out bentonite first, screening to obtain bentonite raw materials;

[0018] Step 2: spread the bentonite raw material on the hard field base and dry it in the sun;

[0019] Step 3: After drying in the sun, carry out milling treatment. The milling process is accompanied by stirring and screening to remove large particles, and then sodiumizing machine plus sodium carbonate is used for a sodiumizing process;

[0020] Step 4: After the first sodiumization is completed, spread part of the bentonite on the hard field base, and then spray sodium carbonate and ben...