Patent ID: 8052077
Filing Date: 2011-11-08
Classification: B02C,B07B

Abstract:
1. A method for preparing a carbon siccative for producing electrodes, in which fractions of different granulation are produced and are mixed in a predetermined ratio, and in which the fractions comprise at least one dust to fine-grained fraction which is ground to a predetermined adjustable grain size, said method comprising: providing a mill/sifter combination in which the grain size is continuously adjustable during operation, said mill/sifter combination being a roller grinding mill with an integrated dynamic sifter wherein the grinding pressure of said mill is adjusted, the rotational speed of the mill is adjusted, the air throughput of the mill and sifter is adjusted, and the rotational speed of the sifter is adjusted; and using said mill/sifter combination to grind the dust to fine-grained fraction whereby further subsequent homogenization is not required.