Abstract: A gas-liquid contact system for absorption of gaseous contaminants in an absorptive liquid where contact is attained by controlled flow relation between the gas and liquid forming a fluidized liquid mass for intimate contact between gas and liquid.

Abstract: A flexible insulating blanket attached to a metal backing with adjustable panels about the backing is used to cover the opening of a carbon anode baking furnace to bring about sealing contact between the cover and the furnace walls so as to minimize thermal requirements and losses from the furnace.

Abstract: A high temperature non-conducting inorganic refractory adhesive suitable for use in conjunction with a number of substances including conducting elements metallic in nature.

Abstract: A pre-burned ceramic cap cooperating with a notched metallic stud to anchor ceramic fiber insulating material in the interior wall of a furnace. The cap is provided with a slotted collar internally of the cap, so that on rotation of the cap surfaces on the collar engage surfaces on a notch to lock the assembly in position and to protect the metallic parts of the assembly from the deteriorating effects of combustion gas contact therewith.

Abstract: An illustrative embodiment of the invention relates to a preburned ceramic refractory covering for a water cooled member forming a structural portion of a metallurgical furnace. The covering comprises an inner layer of split ceramic refractory tiles at least partially encircling the structural member, and a C-shaped ceramic refractory collar which slideably engages the split tiles disposed about the member and supports the tiles thereon.

Abstract: A method of absorbing SO.sub.2 by use of an absorbing medium containing ammonia compounds is described. In a process wherein sulfur bearing constituents are combusted, SO.sub.2 bearing flue gases are generated. Having been cooled, the flue gases are contacted in a multi-stage absorption system by aqueous absorbents comprised of ammonium compounds which are maintained so that SO.sub.2 is removed from the flue gas and the formation of the ammonium sulfite fume is inhibited.

Abstract: A system for improving the absorption of gaseous SO.sub.2 contained in flue gases by contact with an absorbing slurry, separating the unreacted solids from the reacted solids in the slurry product of the absorption in an inertial separator and recycling the unreacted solid containing slurry to the SO.sub.2 absorption system.

Abstract: A process for removal of moisture from fissile and non-fissile bodies which are encapsulated in hollow rods comprising perforating the rod, subjecting the rod to a reduced pressure environment, filling the rod with a dehydrating reagent and adjusting the temperature and pressure to bring about vaporization of the dehydrating reagent-water mixture. After cooling in a dry inert gas atmosphere, the rod is removed from the environment and the perforation is sealed.

Abstract: A two-piece throat for a racket, the throat being formed with stringholes of slight curvature so as to reduce the occurrence of string failure. The throat comprises two substantially identical sections which fit together in a complementary manner to form the stringholes and provide a mechanical lock such that the force exerted by the strings on the stringhole walls is displaced from the interfaces of the two halves forming the throat.

Abstract: A new chemical recovery process and apparatus for a polysulfide pulping system is described wherein sulfur is recovered from the weak black liquor and is returned to the process, along with makeup sulfur, to reconstitute the polysulfide solution.After the polysulfide digestion, the spent liquor is contacted with ferric oxide Fe.sub.2 O.sub.3 whereby ferrous sulfide, FeS, is formed. After separation of the ferrous sulfide from the remaining liquid, the ferrous sulfide is oxidized to form elemental sulfur, and ferric oxide. After the melting of the sulfur and the separating of the products, the sulfur can be returned to the Sulfur Dissolving Tank wherein, along with makeup sulfur as required, the white liquor from the causticizing plant can be treated to form the polysulfide liquor for digestion. The ferric oxide can be reused for contacting the black liquor to form ferrous sulfide. The resulting smelt of reduced sulfidity from the recovery furnace can be reprocessed to form the white liquor.