Abstract: A process for drying a gaseous hydrogen halide of the formula HX, wherein X is selected from the group consisting of bromine, chlorine, fluorine, and iodine, to remove water impurity therefrom, comprising:contacting the water impurity-containing gaseous hydrogen halide with a scavenger including a support having associated therewith one or more members of the group consisting of:(a) an active scavenging moiety selected from one or more members of the group consisting of:(i) metal halide compounds dispersed in the support, of the formula MX.sub.y ; and(ii) metal halide pendant functional groups of the formula -MX.sub.

Abstract: A C-branched zwitterionic surfactant represented by the following formula is disclosed: ##STR1## wherein x and y are numbers, x is less than or equal to y+1, and the sum of x+y is in the range of about 7 to about 19, with the provisos that: (1) when the sum of x+y is in the range of about 7 to about 13, x/y is in the range of about 0.3 to about 1.2; and (2) when the sum of x+y is in the range of about 14 to about 19, x/y is in the range of about 0.1 to about 0.7. An enhanced oil recovery method using the foregoing surfactants is also disclosed.

Abstract: A composition of matter wherein amino resins such as melamine formaldehyde ("MF") resins modify polysaccharide polymers thereby forming gels with transitional metal ions useful for profile control where said polymers have amine, amide, hydroxyl and thiol functionalities. Said gels are thermally stable, brine tolerant and rehealable. Said resin modified polysaccharide polymers can be used in their liquid or ungelled state as a mobility control agent in a reservoir during the removal of hydrocarbonaceous fluids therefrom.

Abstract: A novel diagnostic procedure for the in vivo clinical evaluation of gastrointestinal ulcer disease and other diseases associated with loss of mucosal integrity in humans which comprises the oral administration of an effective amount of radio-labeled sucralfate or derivative or precusor thereof or a water soluble, physiologically compatible radiolabeled salt of sucrose suflate to the human host, followed by scintigraphic imaging of the gastrointestinal area of interest with scintigraphic imaging equipment.A novel radiopharmaceutical composition comprising an aqueous solution or suspension containing an amount of a radio-labeled sucralfate or derivative or precursor thereof or a water soluble, physiologically compatible radiolabeled salt of sucrose sulfate for in vivo scintigraphic imaging of the gastrointestinal or other muscosal areas in humans.

Abstract: An additive for drilling fluids employed in the deep well drilling industry, which additive comprises an organometal compound of titanium, zirconium or vanadium with humic acid and a further organic moiety which is at least one of fatty acid alkoxylates, fatty alcohol polyalkylene glycol ethers, long-chain amine alkoxylates optionally substituted with a hydroxyl group, or water-insoluble polyalkoxylate all of which are optionally mixed with fatty acids, and fatty acids alone, these having optionally been applied onto an inorganic carrier, mandatorily in the case of fatty acids alone. The fluid loss additive prevents the drilling fluid from streaming into porous drill formations. The additive may be prepared by the reaction of a metal alcoholate with a compound providing the organic moiety and humic acid or a humic acid-containing product.

Abstract: Compounds of the formula I:R+[.sup.99m TcNX.sub.4 ]- Iwherein R+ represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of .sup.99m Tc-labelled radio- pharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.

Abstract: An improved process is disclosed for preparing fluoroaromatic compounds (such as fluoronitrobenzene compounds) wherein chloroaromatic compounds (such as chloronitrobenzene compounds) are reacted with potassium fluoride in a solvent dispersion thereof prepared from a mixture including the solvent, the fluoride, methanol and an aromatic compound.

Abstract: Tools for machining etc can according to the invention be made better and cheaper by being composed of a compound material forming core and cover resp of the tool. The core consists thereby of a material which is situated in the gap between cemented carbide and high speed steel regarding its properties and which contains 30-70 vol % hard constituents in the form of carbides, nitrides and/or carbonitrides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and/or W in a matrix based on Fe, Ni, and/or Co and that the cover comprises an alloy based on Fe, Co and/or Ni generally steel and preferably tool steel or stainless steel.

Abstract: .sup.1/3 Holmium in a carrier metallic hydroxide aggregate is disclosed for the treatment of arthritis and, in particular, rheumatoid arthritis. The compound disclosed preferably has a particle size of 1 to 40 microns, Beta energy emissions in the range of 1.76-1.84 MeV, low levels of gamma ray emissions and a radioactive half-life of 26.8 hours. The preferred metallic hydroxide is selected from the group consisting of Ferric Hydroxide, Aluminum Hydroxide, Bismuth Hydroxide, Chromium Hydroxide, Cupric Hydroxide, Manganese Hydroxide and Stannous Hydroxide. Methods are also disclosed for the preparation of the compound, as well as for the methods of its administration to a patient in need thereof.

Abstract: The invention pertains to flame retardant flexible polyurethane foams prepared by reacting a polyether polyol, or organic isocyanate, and a blowing agent incorporating (a) melamine in an amount ranging from about 30 weight percent to about 55 weight percent and an effective amount of (b) another flame retardant.

Abstract: A method of isotope enrichment comprises providing a mixture of at least two isotopic compounds of a reactant. One of the components having a greater percentage of a selected isotope than the other. An electron transfer agent is introduced into the mixture to form a reaction mixture. The electron transfer agent facilitates the transfer of electrons interactive with nuclei of the selected element in the reactant. The transfer agent is in an amount sufficient upon reaction of the reaction mixture to establish an equilibrium between an electron rich reaction product and an electron poor reaction product. The reaction mixture is reacted until the equilibrium is established. Molecules of the electron poor reaction product are then separated from molecules of the electron rich reaction product.

Abstract: Monosodium cyanamide is suspended in chemically and physically stable form in certain, high-boiling ether alcohols corresponding to the following formula ##STR1## The suspensios are an easy-to-handle, meterable form of NaHNCN in which it may be used both as a starting material for chemical syntheses and as an activator for peroxidic bleaches.

Abstract: Improved microcapsules contain at least one wall which is the reaction product of at least one isocyanate-reactive group and an aromatic isocyanate which hasthe formula: ##STR1## in which n=8 to 20. The microcapsules are useful in carbonless copy paper.

Abstract: Lead-iron phosphate glasses containing a high level of Fe.sub.2 O.sub.3 for use as a storage medium for high-level radioactive nuclear waste. By combining lead-iron phosphate glass with various types of simulated high-level nuclear waste, a highly corrosion resistant, homogeneous, easily processed glass can be formed. For corroding solutions at 90.degree. C., with solution pH values in the range between 5 and 9, the corrosion rate of the lead-iron phosphate nuclear waste glass is at least 10.sup.2 to 10.sup.3 times lower than the corrosion rate of a comparable borosilicate nuclear waste glass. The presence of Fe.sub.2 O.sub.3 in forming the lead-iron phosphate glass is critical. Lead-iron phosphate nuclear waste glass can be prepared at temperatures as low as 800.degree. C., since they exhibit very low melt viscosities in the 800.degree. to 1050.degree. C. temperature range. These waste-loaded glasses do not readily devitrify at temperatures as high as 550.degree. C.

Abstract: A series of oil soluble to water-dispersible, corrosion inhibiting solutions are disclosed which contain about 2 ppm to about 70%, preferably about 3 ppm to about 200 ppm, of an ethoxylated, propoxylated dialkylphenol amine represented by the formula: ##STR1## wherein R and R' are alkyl groups containing about 5 to about 12 carbon atoms, x equals about 1 to about 10, and z equals about 2 to about 20. The salt and amide reaction products of the instant alkoxylated amine and an organic acid selected from the group consisting of hydroxyacetic acid, a fatty acid, a dicarboxylic acid, a dimer-trimer acid, an acidic phosphorus containing compound, and mixtures thereof are also effective in controlling sour and sweet corrosion. A method is also disclosed for protecting metal from corrosion by contacting the metal with an effective amount of the amine, or the amine/acid or amide reaction products, in a continuous or batch treatment.

Abstract: A method and composition for inhibiting the corrosion of metal surfaces in contact with the system water of aqueous systems are disclosed, which use a combination of at least one compound selected from 2,5 dihydroxybenzene sulfonic acid and its water soluble salts and at least one amine selected from neutralizing amines and hydroxylamines.

Abstract: A process for producing organolanthanides by reaction of a rare-earth metal with an unsaturated compound in an ether medium, the resultant compounds and the use of these compounds in organic synthesis and for catalysis is disclosed. The process is conducted at -80.degree. to +100.degree. C., in the absence of oxygen and any compound having active protons. The resultant compounds are useful as catalysts, e.g., in the hydrogenation of olefins and diolefins and in the polymerization thereof, and are useful as chemical intermediates.

Abstract: A surface treatment apparatus for treating the surface of a substrate that is supported on a rotating table. The apparatus has a plate transmissive of ultraviolet rays that is mounted in parallel with the substrate. The plate has a plurality of supply nozzles for supplying a reactive gas to the rotating substrate surface, the nozzles being provided at positions of different radius of rotation in order to complete the surface treatment in a short period of time.

Abstract: An aqueous dispersion of an organic peroxide which contains 0.01 to 10% by weight of crystalline cellulose and optionally further contains 0.001 to 10% by weight of at least one member selected from the group consisting of anionic surfactants and nonionic surfactants excels in shelf life, exhibits low viscosity, and is useful as a polymerization initiator for ethylenically unsaturated monomers.

Abstract: In a process for producing a silver halide emulsion through mixing a halide solution and a silver nitrate solution in the presence of a hydrophilic colloid, the improvement is disclosed wherein any part of the equipment that is employed in the process starting with the initiation of silver halide formation and ending with the coating of the emulsion on a support and with which the reaction solution will come in contact is made of a stainless steel having a molybdenum content of 2.2-5.0 wt %.