Degussa Aktiengesellschaft

Deutsche Gold- Und Silber-scheideanstalt Vormals Roessler

Eberhard Kilian

Gunter Turk

Peter Nauroth

Alfons Kreher

Georg Schneider

There is described a process and an apparatus for the granulation of glass melts by bringing the melt into contact with water, in which there is obtained a homogeneous granulate without oversize grains and glass threads. This is attained by impacting the vertically downwardly flowing glass melt all around with laterally slanting downwardly directed high pressure water jets. The apparatus consists essentially of an overflow channel to an overflow funnel and a collecting container, wherein there is arranged below the overflow channel a preferably U-shaped nozzle carrier which entirely or partially surrounds the melt and carries nozzles with a conical angle of 15.degree.-180.degree. sloping downwardly.

Process for the granulation of glass melts

Free flowing, finely divided precipitated silicic acid granules of reduced dust content and reduced abrasion are obtained by a process including the step of subjecting a silicic acid suspension to intensive shearing action. Rubber compositions containing the precipitated silica produced in this way are also disclosed.

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Hanau, Germany

Eberhard Kilian