CN103896293A

CN103896293A - Novel sodium modification process of bentonite

Info

Publication number: CN103896293A
Application number: CN201410115459.6A
Authority: CN
Inventors: 汪元良
Original assignee: WUJU HENGJIE BENTONITE Co Ltd
Current assignee: WUJU HENGJIE BENTONITE Co Ltd
Priority date: 2014-03-26
Filing date: 2014-03-26
Publication date: 2014-07-02
Anticipated expiration: 2034-03-26
Also published as: CN103896293B

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

The novel sodium base of a kind of wilkinite metallization processes

Technical field

The present invention relates to the manufacture field of natural montmorillonite, relate in particular to the novel sodium base of a kind of wilkinite metallization processes.

Background technology

Wilkinite is the nonmetallic minerals take montmorillonite as essential mineral composition, some positively charged ion that the laminate structure forming due to the de-stone structure cell of door exists, as Cu, Mg, Na, K etc., the effect of these positively charged ions and montmorillonite structure cell is very unstable, easily by other cationic exchange, therefore there is good ion exchangeable.Abroad in 24 field 100Duo Ge departments of industrial and agricultural production, apply, have more than 300 product, thereby people are referred to as " omnipotent soil ".

Bentonitic interlayer cation kind determines bentonitic type, and interlayer cation is Na ⁺time claim sodium bentonite; Interlayer cation is Ca ²⁺time claim calcium-base bentonite; Wherein the processing performance of sodium bentonite is better than calcium-base bentonite.But calcium-base bentonite distributes far extensively in sodium bentonite, therefore to carry out modification to calcium-base bentonite exactly except strengthening finding sodium bentonite, make it to become sodium bentonite.At present traditional bentonite sodium metallization processes is after wilkinite is pulverized stirring, to add sodium agent to carry out sodium to be then dried, and such technique sodium is inhomogeneous, and effect is insufficient, affects quality product, therefore addresses the above problem and just seems very necessary.

Summary of the invention

The invention provides the novel sodium base of a kind of wilkinite metallization processes, the problem such as the sodium that solved original technique is inhomogeneous, sodium effect is insufficient, this technique sodium homogeneity is high, can meet different clients' demand.

The object of this invention is to provide the novel sodium base of a kind of wilkinite metallization processes, comprise the following steps:

Step 1: exploitation bentonite material, remove macrobead shape thing;

Step 2: raw material is layered on the base of hard field and utilizes sunlight to dry;

Step 3: after drying, carry out pulverization process, crushing process includes stirring, adds afterwards sodium carbonate, has pulverized and will screen, and removes macrobead thing;

Step 4: after pulverizing, after it is layered on the base of hard field again, evenly spray sodium carbonate, spray again the wilkinite that step 3 obtains after having sprayed sodium carbonate, spray again afterwards one deck sodium carbonate, finally breed at least 24h,

Step 5: after breeding, drawn in, cover upper film, continue to breed 3-7 days, obtain sodium even, effective sodium bentonite.

Further improve and be: the bentonitic fineness that pulverizing mill grinds is 120 ~ 350 orders, and the moisture that finally obtains finished product sodium bentonite is less than 10%.

Further improve and be: the number of plies of step 4 wilkinite and sodium carbonate also can up add, and its number of plies is minimum is 4 layers.

Further improve and be: the total mass of the sodium carbonate adding for twice is limited, can not add, and the sodium carbonate total mass that this technique adds accounts for the 3%-7% of sodium base wilkinite quality.

Beneficial effect of the present invention: the present invention first adopts raw material and dries, pulverizes, and carries out once shallow sodium after pulverizing, and the sodium carbonate of the even spray of paving afterwards touches wilkinite again, and technique of the present invention is simply effective, dries without adopting, and has saved the energy; And through twice sodium, Multilevel method breeds, just can obtain sodium even, the sufficient sodium bentonite of sodium effect, its sodium homogeneity can be to more than 96%.

Embodiment

In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.

The present embodiment provides the novel sodium base of a kind of wilkinite metallization processes, comprises the following steps:

Step 1: first exploit out wilkinite, screening obtains bentonite material;

Step 2: bentonite material is paved and utilizes sunlight to dry on the base of hard field;

Step 3: after drying, carry out abrasive dust processing, abrasive dust process is accompanied by and stirs and screening removal macrobead thing, adopts afterwards sodium machine to add sodium carbonate and carries out sodium one time;

Step 4: after a sodium, part wilkinite is layered on the base of hard field, evenly sprays successively afterwards sodium carbonate and wilkinite, after breed 24h;

Step 5: after secondary sodium, wilkinite is drawn in together, cover film, continue to breed 5 days, obtain finished product.

Total number of plies of step 4 wilkinite and sodium carbonate is 4 layers; The bentonitic fineness that pulverizing mill grinds is 200 orders; The moisture that finally obtains finished product sodium bentonite is 9%; The quality that adds for twice total mass of sodium carbonate to account for the whole sodium bentonite making is 5%.The present invention first adopts raw material and dries, pulverize, after pulverizing, carry out once shallow sodium, the sodium carbonate of the even spray of paving afterwards touches wilkinite again, and through twice sodium, Multilevel method breeds like this, just sodium can be obtained even, the sufficient sodium bentonite of sodium effect, its sodium homogeneity can reach 96%, can meet different clients' demand.

Claims

1. the novel sodium base of a wilkinite metallization processes, is characterized in that: comprise the following steps:

Step 1: from the more bentonite ore exploitation wilkinite of calcic base, screening obtains bentonite material;

Step 2: the wilkinite of exploitation is paved and dried on the base of hard field with paver;

Step 3: the wilkinite drying is drawn in together with gathering machine, be transported to afterwards pulverizing mill and carry out crushing, stirring processing, screen afterwards, obtain powdery wilkinite, adopt afterwards sodium machine to add sodium carbonate stirring to carry out the shallow sodium of one-level in wilkinite;

Step 4: the powdery wilkinite of crossing through one-level shallow sodium is spread out and put on the base of hard field with paver again, evenly spray one deck sodium carbonate with duster, more evenly spray again powdery wilkinite and the sodium carbonate that the shallow sodium of one deck one-level is crossed, breed afterwards at least 24h;

Step 5: the wilkinite through secondary sodium that step 4 is obtained draws in gathering machine, with film covering, breeds 3-7 days again, just can obtain required sodium bentonite.

2. the novel sodium base of a kind of wilkinite metallization processes as claimed in claim 1, is characterized in that: the fineness of described pulverizing mill abrasive dust is 120 ~ 350 orders.

3. the novel sodium base of a kind of wilkinite metallization processes as claimed in claim 1, is characterized in that: described in the moisture of the sodium bentonite that obtains be less than 10%.

4. the novel sodium base of a kind of wilkinite metallization processes as claimed in claim 1, is characterized in that: total number of plies of described step 4 wilkinite and sodium carbonate is at least 4 layers.

5. the novel sodium base of a kind of wilkinite metallization processes as claimed in claim 1, is characterized in that: the quality that the described total mass that adds sodium carbonate for twice accounts for the whole sodium bentonite making is 3%-7%.