This is what brick producers and resource companies say about our effort and services raw and residual material marketing.
“We are alwas grateful for good and low-priced seconsary raw materials. Besides we got a recycling requirement in Hesse.“
Rudolf Bax (Dipl.-Ing.)
Director, Klinker- und Ziegelwerk Franz WENZEL GmbH & Co. KG
“The filter cake gives homogeneity to our products and significantly decreases the ceramic body density. It matches very well with our own raw material basis“
Hubertus Becker (foreman of ceramics)
Works Manager, August LÜCKING GmbH & Co. KG, brick work - concrete
“The perfect additive for our clinker production.”
Ralf Borrmann (Dipl. – Ing.)
Technical Director, RÖBEN Tonbaustoffe GmbH
"Shale as fine as potting soil. Super, that you’ve found this for us."
Matthias Grziwa (Dipl. – Ing.)
Technical Director, RÖBEN Polska Sp. z o.o., factories Sroda Slaska (Poland)
"The filter cake is so reactive that we can only use small amounts. With this material we can finally recreate a regional and special firing shade, which did no longer exist."
Ralf Huber (Engineer)
Director, Ziegelwerk Klaus HUBER GmbH & Co. KG
"With its high refractoriness this clay builds the framework of the brick. In addition it fractionize the texture. We didn’t know that we have such a great material right at our front door."
Works Manager, Klinkerwerk B. FELDHAUS GmbH & Co.
"We would have no place to store 50 000 tons of filter cake per year – great you’ve accomplished that.“
Director, Grevenbrücker Kalkwerke GmbH & Co. KG, a company of SCHAEFERKALK GmbH
"Formerly, we haven’t recognized the value of the shale from our stone quarry in Ueffeln. Today we sell more than 170 000 tons of shale per year."
Konrad Brunsing (Marketing Director), Josef Prus (Works Manager)
HOLLWEG, KÜMPERS & COMP. KG
"We could supply up to 120 000 tons per year of kaoline filter cake to the brick industrie"
Director, STROBEL Quarzsand GmbH