Task: Translation
Input (Czech): Brikety s obsahem k°em ku jako p° sada p°i metalurgick²ch postupech obsahuj c  hmotnostn , vzta eno na su inu, 1 a  10 % lepenkov  vl knit  hmoty, 5 a  40 % hydraulick ho cementu, 0 a  20 %   stic kovu a/nebo kovov  slitiny a jako zbytek do 100 % k°em k obsahuj c  zbytky po v²rob  organochlorsilan , zejm na trichlorsilan  a tetrachlorsilan . P° sada je zvl  t  vhodn  pro ·pravu kvality litiny vyr b n  v kuplovn , p°i em  se vyu  v   patn  recyklovateln ho odpadu obsahuj c ho k°em k.\
Output (English): The present invention relates to briquettes containing silicon and serving as an additive for metallurgic purposes. The briquettes contain, referred to dry weight: 1 top 10 percent by weight of cardboard fibrous material, 5 to 40 percent by weight of hydraulic cement, 0 to 20 percent by weight of metal and/or metal alloy particles and the reminder to 100 percent by weight of being silicon-containing residues after production of organochlorosilanes, particularly trichlorosilanes and tetrachlorosilanes. The suggested additive is especially suitable for the quality adjustment of cast iron being produced in a cupola furnace in order to avoid either costly regeneration for the recovering of the valuable components or the total dumping of said silicon-containing waste.