Bentonite Clay Dischem CAS 1302-78-9

A preparation method of Bentonite Clay Dischem mud, comprising the following steps:

Step 1: Select the Bentonite Clay Dischem ore, crush it, screen out the stones and impurities, and leave the bentonite;

Step 2: Dry the bentonite, then use a crusher to crush it into granules, then crush it into tiny granules, and then lay it on the ground layer by layer. When there is no layer of bentonite, add a layer on top Sodium carbonate, a total of at least 10 layers of bentonite, the top layer is bentonite, then it will be covered with a drape for 2-3 days of sodiumization;

Step 3: Put all the bentonite and sodium carbonate in step 2 into a pulverizer and crush them into powder, mix them together, and then spread them on the ground layer by layer, and then cover them with a cover for 2-3 days. Obtain sodium bentonite;

Step 4: Take cement, sand and water for stirring, add sodium bentonite and synergist during the stirring process, stir at a speed of 5000r/min for 1min in the mixer, and then stir at a speed of 15000r/min for 2min ;

Step 5: measure the density of the obtained Bentonite Clay Dischem cement slurry and use a thickener to measure the thickening time;

Step 6: A small amount of the evenly stirred bentonite cement slurry is introduced into the test mold, and then placed in a curing room for curing to obtain a shaped bentonite slurry;

Step 7: Measure the dry density, water absorption, compressive strength and flexural strength of the formed bentonite mud.

A compound Bentonite Clay Dischem preparation process, comprising the following steps:

Step 1: mining bentonite ore to obtain bentonite raw materials;

Step 2: drying the bentonite raw material in a drying kiln, the drying temperature is 285 ° C, and the drying is to a moisture content of 15%;

Step 3: After drying, the bentonite is transported to the pulverizer by the conveyor belt for grinding, the fineness of the grinding powder is 160 mesh, and the compound bentonite additive is evenly added to the conveyor belt before grinding;

Step 4: After grinding, use a cyclone classifier to classify the bentonite and remove impurities;

Step 5: The bentonite obtained in Step 4 is dried in a three-channel rotary drying oven until the moisture content is 8%, and the drying temperature is 75°C, and the final product can be obtained.

The mass ratio of the composite Bentonite Clay Dischem additive to the bentonite is 20:100. The composite additives include microcrystalline cellulose, magnesium oxide and high temperature explosion-proof agent.

A production method of Bentonite Clay Dischem for drilling mud material:

(1) Grind the raw materials of bentonite to less than 100 mesh;

(2) Mix the ground bentonite with water to prepare a slurry with a slurry concentration of 50% to 60% and stir in a stirring device;

(3) In terms of the mass percentage of bentonite, add 3.5% sodium carbonate, 0.05%~0.5% sodium polyacrylate thickener and 0.2%~0.4% carboxymethyl starch fluid loss reducer to the slurry in step 2 and add The stirring device was heated to 45°C;

(4) After stirring and reacting for 1 hour, the slurry is transported to a filter press for suction filtration. The filtered mud cake is dried in a rotary kiln, and the dried bentonite is ground in a Raymond mill to obtain a drilling mud bentonite product.

The bentonite for drilling mud material provided in this embodiment is tested for its mud performance index with reference to the national standard GB_T+5005-2010 “Specification for Drilling Fluid Materials” testing method.

A process for producing sodium Bentonite Clay Dischem, the process comprises the following production steps:

Step 1: Put the mined Bentonite Clay Dischem raw materials into a container, add water and stir to form a slurry, and then add NaCl to stir after standing for 1 hour;

Step 2: After stirring, let stand for 1 hour, add NaCl and sulfuric acid solution for stirring, and finally let stand for 1 hour;

Step 3: the container is heated to 100°C subsequently, and taken out after heating for 2h, then the bentonite is taken out and washed to neutrality with distilled water;

Step 4: the bentonite is transported into the drying room and dried, and the surface of the bentonite is covered with a layer of film in the drying process;

Step 5: After the drying is completed, use a screen to select the cost bentonite.

The consumption of the sulfuric acid solution is 0.5mol/L. In the described step 1, the consumption of bentonite and NaCl is 100:10. In described step 2, the consumption of bentonite and NaCl is 100:15.

A preparation technology of lithium bentonite, the preparation technology is as follows:

Step 1: Screening the bentonite raw materials mined from the bentonite ore to remove impurities to obtain the bentonite raw materials;

Step 2: The bentonite raw material is dried for 30h, collected and sent to a pulverizer for grinding;

Step 3: adding a lithiating agent to the ground bentonite raw material, and stirring the raw material added with the lithiating agent;

Step 4: Evenly spread the evenly stirred raw materials, and heat them with hot air;

Step 5: evenly spray a layer of lithiating agent on the surface of the heated bentonite, cover the surface of the lithiating agent with an isolation layer, and heat it for a second time;

Step 6: The bentonite after the secondary heating is naturally returned to temperature and then sent to a packaging device for packaging to complete the preparation.

When using hot air for heating in the fourth step, the temperature of the Bentonite Clay Dischem is 65°C, and the hot air heating time is 36h. The isolation layer in the fifth step is a transparent film, and the temperature of the secondary heating is 55°C. The lithiating agent is lithium carbonate.