characters:

1)Strong decoloring-ability

2)Good adsorption 

3)Higher in activity degree

The physical adsorption is non-selective but easy to reach equilibrium and has a better adsorption speed. Chemical adsorption is through chemical linkage with a significant selectivity. The decoloration for fats and oils is by adsorbing and removing the pigment, which is in the state of the colloidal particles dispersed in the oil or dissolved in oil.

KEYWAY activated clay powder could absorb the impurities out of the crude extracted oil, like gums, pigments, part of the heavy metal in grinding process, etc.

Method of sample test:

1)take 100ml oil,weighing about 15g KEYWAY bentonite,adding slowly by spoon and stiring,fully precipitation,until reaching for treatment of oil requirements,finally draw dosage.

2)put into production,right amount of white earth into large container,and then press the front of the proportion to the oil that include uniform mixing(when necessary add heating kettle,heat diluted in about 30 minutes or so)

3)wait for after cooling precipitation,filter press with pressure filter.