BLEACHING CLAY AND METHOD OF MANUFACTURE

摘要

An acid-enhanced bleaching clay useful in the removal of colored impurities from edible oils is made by an environmentally-friendly, non-slurry process which includes grinding, acidifying, and dryin the clay to a free moisture content of no more than about 13 percent by weight. The acid content of the obtained clay product is in the range of about 1 to about 5 percent by weight, preferably about 2.5 to about 5 percent by weight, based on the dry weight of the clay.