Abstract: An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the impeller. The impeller also has a plurality of openings extending laterally through its sidewall, wherein the openings have center lines disposed parallel to lines extending radially from the center of the cavity. The openings may be equidistantly spaced about the periphery of the sidewall. The impeller may also be comprised of a bearing member forming a portion of the sidewall.

Abstract: An alcohol mixture suitable for combining with gasoline is produced by contacting synthesis gas at elevated temperature and pressure with an oxide complex catalyst containing copper, thorium, an alkali metal and at least one other specific element.

Abstract: An alcohol mixture suitable for combining with gasoline is produced by contacting synthesis gas at elevated temperature and pressure with an oxide complex catalyst containing copper, thorium, an alkali metal and at least one other specific element.

Abstract: A catalyst is disclosed which comprises a ruthenium-copper-containing complex of the formulaM.sub.a A.sub.b RuCu.sub.c N.sub.z O.sub.xwhereinM is selected from the group consisting of Ce, Cr, Fe, Mn, and mixtures thereof,A is an alkali metal, alkaline earth metal or mixture thereof,a is from 0 to about 1,b is from about 0.002 to about 10,c is from about 0.2 to about 20,z is from 0 to about 1% by weight,x is the number of oxygens needed to fulfill the valence requirements of the other elements, said complex being supported by an activated carbon support having a surface area of at least about 300 square meters per gram. A process for converting mixtures of hydrogen and carbon monoxide, particularly synthesis gas, to alcohol with minimal levels of hydrocarbon by-products being formed is also disclosed.