Main industrial indicators of bentonite deposits
November 06, 2020
The general industrial requirements for the quality of bentonite ore are measured by the amount of montmorillonite in the ore:
Cut-off grade: ≥ 40%;
Industrial average grade: ≥50%.
The montmorillonite content is generally converted by the amount of blue absorbed, ie:
M=B/K ́100
Relative content of montmorillonite in M-bentonite ore, %;
B-blue amount, milliequivalent/100 g sample;
K-conversion factor, 150.
Available thickness: 1~2m;
Clip stone removal thickness: ≥ 1m.
The ore reserves > 50 million tons are large deposits, medium-sized deposits are 5 to 50 million tons, and <5 million tons are small deposits. The test of bentonite ore is divided into basic performance test and process performance test. The basic performance test items include: blue absorption, total cation exchange and component, gelatinous price, expansion capacity, and pH value. Process performance test items are determined according to their purpose. Common test items are:
Mechanical manufacturing, wet compressive strength, dry compressive strength, hot wet tensile strength, gas permeability;
Metallurgical compressive strength of pellets, the number of fall, burst temperature, 2 hours and 24 hours water absorption;
Drilling mud pulping rate, water loss rate, viscometer reading, apparent viscosity, plastic viscosity, dynamic shear force, wet sieve analysis, etc.;
Petrochemical decolorizing capacity, specific surface area, the free acid, activity, moisture, particle size and the like.
The above is the Main industrial indicators of bentonite deposits we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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November 06, 2020
