Derivatives of tricyclo-[5.2.1.0 , ]-dec-3-ene as frothers...

Details Derivatives of tricyclo-[5.2.1.0 , ]-dec-3-ene as frothers... Derivatives of tricyclo-[5.2.1.0 , ]-dec-3-ene as frothers...

B - Operations, Transporting

03

D

361/21

B03D 1/02 (2006.01) B03D 1/008 (2006.01)

Patent

CA 1320768

ABSTRACT OF THE DISCLOSURE Derivatives of tricyclo-[5.2.1.02,6]-dec-3-ene corresponding to the following general formula Image (I) in which R1 is hydrogen; a linear or branched C1-C8 alkyl radical; an acyl radical R2-CO, where R2 is hydrogen or a linear or branched C1-C18 alkyl or alkenyl radical; or a hydroxyalkyl radi- cal Image in which R3 and R4 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 R3 and R4 is a hydroxy group; are used as frothers in the flotation of coal and ores.

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