Abstract: The invention is directed to a liquid phase oxidation process, wherein a first oxygen-containing gas is injected into the lower portion of a bubble column reactor vessel containing an oxidizeable organic liquid. A second oxygen-containing gas is further injected into the reactor at a point or points wherein the liquid is substantially depleted in dissolved oxygen prior to said injection. Oxygen from both the first and second oxygen-containing gases is used to oxidize the organic liquid.

Abstract: An apparatus and process are provided for the concentration and separation of components contained in liquids. The apparatus is comprised of, in part, a module containing a plurality of axially aligned, hollow tubular members having a well defined porosity and a substantially uniform, continuous, adherent, porous coating of preformed, aggregated, inorganic metal oxide particles on their interior or exterior surface. The low molecular weight dissolved phases permeate the walls of the tubes while the larger diameter molecules are retained in the liquid. The apparatus can be operated for long periods of time with a high degree of concentration and separation of liquids. The apparatus is particularly suited for the concentration and separation of oil from mixtures of oil, water and detergents. It is also useful in textile, paper making and food industries.