How to increase the swelling effect of sodium based bentonite
1, the montmorillonite content and cation exchange capacity of bentonite ore can be confirmed, and the amount of sodium carbonate can be reasonably added.2, the sodium conditions, moisture, temperature, shear force, extrusion pressure four should be reasonably applied.3, production process: raw ore, testing, coarse crushing, batching, sodium, drying, crushing, testing.4, as far as possible in the ingredients without organic additives, not high temperature.
Dissolution: soluble in water and producing transparent colloidal liquid.Uses: cellulose ethers, a wide range of uses. For example, in oil drilling and mining, can be used as mud stabilizer; in the textile industry, can replace starch for warp sizing; in papermaking industry, can be added to increase the strength of paper pulp, oil resistance and absorbency; in the pharmaceutical industry, can be used as ointment, soft paste material etc..
The swelling capacity of bentonite is the same as that of colloid, which is used to test the swelling property of bentonite. Sodium bentonite of calcium bentonite with high swelling capacity. To improve the capacity expansion in the premise of the original soil, according to the CEC conversion of sodium alkali, thoroughly. In my experience, the amount of blue CEC is moderate, and the expansion capacity to 50ml (1g- is checked by GB/T20973--2007) is very easy
