COMPLEX SILICATES FOR USE AS ABSORBING, BLEACHING OR REFINING AGENTS IN THE VEGETABLE AND ANIMAL OILS AND FATS PROCESSING INDUSTRY, IN THE FOOD INDUSTRIES, IN THE MINERAL OIL PROCESSING INDUSTRY, IN THE NATURAL AND SYNTHETIC WAX PROCESSING INDUSTRY, IN THE SULPHUR PROCESSING INDUSTRY AND FOR SOLVENT REGENERATION IN INDUSTRIAL AND COMMERCIAL OPERATIONS