04300939 is referenced by 2 patents and cites 7 patents.

A method for processing waste sludge from wet phosphoric acid purification facilities wherein steelworks slag is separately ground, the ground slag then is force-mixed and granulated together with the waste sludge.

Title
Method of processing waste sludge from wet phosphoric acid purification acid purification facilities
Application Number
6/164698
Publication Number
4300939
Application Date
June 30, 1980
Publication Date
November 17, 1981
Inventor
Rudiger Scheel
Schwerte
DE
Fritz Meininghaus
Dortmund
DE
Martin Hater
Dortmund
DE
Agent
Wilson Fraser Barker & Clemens
Assignee
Uhde
DE
IPC
C05B 21/00
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