no 1 592 861 after raising the discharge lid there were discharged 20 kg of a granulate having a particle size of about 0 8 mm the granulate was dust free non adhering and had good pourability the following organosilane preparations were prepared in a continuous procedure rather than in a discontinuous process for this purpose there was used the bead forming machine described in fig2 of german pat no 2 147 503 and fig2 of related rothbuhr u s pat no 3 852 399 the entire disclosure of the rothbuhr u s patent is hereby incorporated by reference and relied upon accordingly there were produced from 80 kg of printex u00ae 30 per hour and 80 kg of silane si 69 per hour 160 kg per hour of practically dust free granulate in bead form the following types and amounts of carbon black as well as the silane si 69 in the stated amounts were employed for the production of silane preparations of the invention ______________________________________ dbp abs silanetype and amount of bet surface according to si 69 incarbon black in area astm d 2414 weightweight percent in m sup 2 g in ml 100 g percent______________________________________printex u00ae 200 70 45 44 30printex u00ae 400 65 100 48 35printex u00ae 80 45 135 55printex u00ae 3 h 40 78 155 60______________________________________ the production was carried out in the manner described in example 1 the.