Process for mixing silica in a polymer latex

The method for preparation of silica the latex of a method of the polymer, wherein the ph value of the suspension water and an organic compound coupling agent the silica is silicon dioxide slurry, and is silica and polymer latex contact, wherein the uniformly distributed on one of silica of latex, and recovering silicon by the latex is. A further described the method for preparing silicon is. The invention further described in or is arranged in the operation process to produce the silica is a natural or synthetic polymer in the latex form dry.