Method for purifying diatomite from diatomaceous clay
A technology of diatomaceous matter and diatomaceous earth, applied in the directions of silicon oxide and silicon dioxide, can solve the problems of poor effect and singleness, and achieve the effect of high separation efficiency
Inactive Publication Date: 2017-01-11
马远周
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Problems solved by technology
In the mineral separation and purification process, the dispersant is very important, the current technology generally uses a single sodium hexametaphosphate, sodium benzenesulfonate and sodium dodecylbenzenesulfonate, the effect is poor
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The invention provides a method for purifying diatomaceous earth from diatomaceous clay, comprising the following steps:
[0017] a: pulverizing diatomaceous clay;
[0018] b: Add water and stir;
[0019] c: adding the activated dispersant of sodium hexametaphosphate and sodium benzenesulfonate mixture with a mass percentage of 2:1, stirring;
[0020] d: classify the slurry with a particle size of 6-60 μm;
[0021] e: Put the slurry with a particle size of 6-60 μm into an ultrasonic device for ultrasonic water treatment;
[0022] f: filtering, drying, purifying diatomite.
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Abstract
The invention provides a method for purifying diatomite from diatomaceous clay. The method comprises the following steps: a) crushing the diatomaceous clay; b) adding moisture and stirring the materials; c) adding an activation dispersant, stirring the materials; d) grading a slurry with granularity being 6-60 [mu]m; e) putting the slurry with granularity being 6-60 [mu]m in ultrasonic equipment for supersonic wave water processing; and f) filtering the slurry, and drying the slurry and purifying the material to obtain the diatomite. The method is characterized in that a mixture of sodium hexametaphosphate and benzene sulfonic acid sodium salt as the activation dispersant, so that the separating efficiency is increased.
Description
technical field [0001] The invention relates to the preparation of diatomite, in particular to the field of diatomite purification from diatomite clay. Background technique [0002] Diatom is a kind of unicellular aquatic plant, and it is a kind of unicellular plant with pigment body, which is often connected into various groups by several or many individual cells. Diatoms are known as the "grassland" of the ocean because of their many types and large numbers. They create 70% of the oxygen on Earth. During the growth process, diatoms absorb free silicon in water to form their porous and strong cell walls. After diatoms die, their cell walls will not decompose, but will be deposited at the bottom of the water. After hundreds of millions of years of accumulation and geological changes, diatomite is formed. , referred to as amorphous silica. The main component of diatomite is protein, which is light, soft and porous. The special porous structure of natural diatomite can be o...
Claims
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IPC IPC(8): C01B33/12
Inventor 马远周
Owner 马远周