Method of processing waste sludge from wet phosphoric acid purif

Chemistry: fertilizers – Processes and products – Organic material-containing

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71 33, 210751, 210907, C05B 2100

Patent

active

043009395

ABSTRACT:
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.

REFERENCES:
patent: 2983544 (1961-05-01), Jost
patent: 3235595 (1964-06-01), Williams
patent: 3579321 (1971-05-01), Staller
patent: 3756119 (1973-05-01), Davidtz
patent: 3763041 (1973-10-01), Cook et al.
patent: 4257898 (1981-03-01), Meurer et al.

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