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Hydrocarbon Fuel Additives And Method For Preparing Same, G. David Mendenhall, Hsiang T. Chen
Hydrocarbon Fuel Additives And Method For Preparing Same, G. David Mendenhall, Hsiang T. Chen
Michigan Tech Patents
A compound having the general formula R*COH[- CORJj,, wherein R is a lower alkyl hydrocarbon radical, y is 0 or 1, and x is 2 when y is 1 and 3 when y is 0, is prepared by admixing carbon monoxide, a transition metal halide, and an organomonolithium compound or an anionic equivalent thereof.
Column Froth Flotation, David C. Yang
Column Froth Flotation, David C. Yang
Michigan Tech Patents
The froth flotation device includes a flotation column partially filled with a packing which defines a large number of small flow passages extending in a circuitous pattern between the upper and lower portions of the column. A conditioned aqueous pulp of a mineral ore, such as iron ore, is introduced into the midzone of the column. A pressurized inert gas, such as air, is introduced into the bottom of the column and is forced upwardly through the flow passages in the packing. As the air flows upwardly through these flow passages, it is broken into fine bubbles which intimately contact …