The invention is a method for flocculating clay including the steps of preparing a dispersion of a processed clay containing a polymer as a flocculating agent. The polymer is present in an amount sufficient to cause bridging of particles of the clay in the dispersion by the polymer. Then the dispersion...http://www.google.ca/patents/US5631080?utm_source=gb-gplus-sharePatent US5631080 - Method for flocculating clay and composition produced thereby
