Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frother

Details Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frother Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frother

1988-03-04

1990-05-15

Stoll, Robert L.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 102

Patent

active

049255592

ABSTRACT:
Derivatives of tricyclo-[5.2.1.0.sup.2,6 ]-dec-3-ene corresponding to the following general formula ##STR1## in which R.sup.1 is hydrogen; a linear or branched C.sub.1 -C.sub.8 alkyl radical; an acyl radical R.sup.2 -CO, where R.sup.2 is hydrogen or a linear or branched C.sub.1 -C.sub.18 alkyl or alkenyl radical; or a hydroxyalkyl radical ##STR2## in which R.sup.3 and R.sup.4 independently of one another may be hydrogen or a hydroxy group and m and n are integers of 0 to 5 and the sum (m+n) is an integer of 1 to 5, with the proviso that at least one of the radicals R.sup.3 and R.sup.4 is a hydroxy group; are used as frothers in the flotation of coal and ores.

REFERENCES:
patent: 2395452 (1946-02-01), Bruson
patent: 3118938 (1964-01-01), Stuart et al.
patent: 3332978 (1967-07-01), Caldwell
patent: 4412843 (1983-11-01), Burgess et al.
patent: 4564369 (1986-01-01), Burgess et al.
Hackh's Chemical Dictionary, ed. by J. Grant, 4th Ed., (1969), pp. XI, 272, 723.
J. Am. Chem. vol. 67, 1945, pp. 1178-1180.

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