Abstract: A defoamer composition comprising a mixture of defoaming effective amounts of monocarboxylic acid having from 12 to 26 carbon atoms, a monoalkanolamide, and an alcohol selected from the group consisting of primary linear aliphatic alcohols ranging from C.sub.4 to C.sub.20, primary branch aliphatic alcohols ranging from C.sub.4 to C.sub.20, and secondary alcohols ranging from C.sub.6 to C.sub.12 ; and a method of inhibiting foaming in a phosphate rock and sulfuric acid medium employed in the synthesis of phosphoric acid by the "wet process" manufacture of phosphoric acid which comprises adding to the reaction medium an effective amount of the above described defoamer composition.

Abstract: Highly effective supported nickel catalysts having finely divided metallic nickel deposited thereon and high specific metal surface areas are obtained by a process wherein a support material is contacted with a nickel soap in an inert hydrocarbon and the resulting nickel-bearing support subsequently subjected to a sulfiding step followed by reductive treatment. The present catalyst compositions are useful as hydrogenation catalysts, particularly for the hydrogenation of fatty materials.