Patent ID: 7527825
Filing Date: 2009-05-05
Classification: B01F,C01F,C01P

Abstract:
1. A method for avoiding the agglomeration of pellets of several kinds of materials when treated at high temperatures, which comprises: covering the pellets with a long-term stabilized magnesium hydroxide suspension, wherein the long-term stabilized magnesium hydroxide suspension has a solids content of about 51% to 61%; a water content of about 39% to 49%; a viscosity of about 500 to 1,500 cp.; an average particle size of about 1 to 2.5 microns; a Mg(OH).sub.2 content of about 50% to 60%; a chloride content of less than about 0.6% on a dry basis; a calcium content of less than about 1% on a dry basis; a pH of about 10.5 to 12; an equivalent magnesium oxide content of about 34% to 42%; a specific gravity of about 1.42 to 1.52, and including at least one anionic polyelectrolyte as a dispersant agent, at a concentration of at least about 25%, in an amount of about 0.5 to about 2.5%, by weight, on a dry basis and an adherent compound a compound that improves the adhesion of the suspension to the pellets selected from the group consisting of styrene-acrylic emulsions having a concentration of at least about 30%, by weight, in an amount of about 0.5 to about 5%, by weight, on a dry basis; adapted to being stored for at least three months without substantial agitation and without experiencing substantial settlement, while avoiding the formation of a solid, hard substrate.