Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1994-03-30
1995-02-07
Corbin, David H.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
1062864, 10628719, 405128, 588256, B09B 300
Patent
active
053877403
ABSTRACT:
The immobilization agent for industrial waste according to the present invention is characterized by that it contains cement, ferrous chloride, iron oxalate and amorphous aluminium silicate, and it is preferred said ferrous chloride, iron oxalate and amorphous aluminium silicate are contained in it by mixing ferrous chloride and iron oxalate with amorphous aluminium silicate and granulating and heating the mixture in an inert gas stream. Further, according to the present invention, it may also contain at least one selected from the group consisting of potassium chloride, magnesium chloride, sodium chloride, cobalt chloride, aluminium sulfate, citric acid, calcium chloride and sodium sulfate in addition to the compounds mentioned above.
REFERENCES:
patent: 4116705 (1978-09-01), Chappell
patent: 4132558 (1979-01-01), Uchikawa et al.
patent: 4240952 (1980-12-01), Hulbert et al.
patent: 4274880 (1981-06-01), Chappell
Nishida Tomio
Sasae Taiichiro
Corbin David H.
En-Tech Research Institute Inc.
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