Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing
Patent
1978-12-18
1981-01-06
Poer, James
Compositions: coating or plastic
Coating or plastic compositions
Proteinaceous material containing
106 40R, C04B 714
Patent
active
042434254
ABSTRACT:
A method for the refining of the silicatic slag phase produced in the thermal recovery of phosphorus from phosphates, which method comprises treating the slag, in the form of finely granular solid material, with steam at a temperature between 600.degree. C. and the softening temperature of the slag.
REFERENCES:
patent: 701690 (1902-06-01), Engbert
patent: 2590901 (1952-04-01), Stout et al.
patent: 3096188 (1963-07-01), Maydl
patent: 3133820 (1964-05-01), Powell
patent: 3215542 (1965-11-01), Tinker
patent: 3582377 (1971-06-01), Hays et al.
patent: 3879214 (1975-04-01), Lowe et al.
Poer James
Wessel-Werk Gesellschaft mit beschrankter Haftung
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