Abstract: Crystalline 2-layer lithium aluminate, especially when carried in an ion exchange resin, is regenerated for use as an extractor for Li.sup.+ values in aqueous solution, said regeneration being done by using an aqueous wash containing at least about 800 ppm Li.sup.+ ion.

Abstract: Flexible, resilient gasketing material with auxiliary resiliency means, such as protuberances (ridges or beads) and internally-positioned spring means. The gaskets may be straight or curved or made into continuous forms such as rectangles, triangles, ovals, or circles. Preferably the gaskets are flanged.

Abstract: Porous separators for electrolytic processes are designed which are characterized by an N.sub.mac t value, where N.sub.mac is the ratio of the resistance (r) of the electrolyte-saturated separator to the resistance (r.sub.o) of an equivalent volume of electrolyte and t is the thickness, in inches, of the separator. The N.sub.mac value is referred to here as the MacMullin Number.

Abstract: Cobalt values are extracted from Co-containing ores or minerals by using an aqueous solution containing a reducing agent (e.g., hydrazine hydrosulfate). The leachant substantially rejects nickel values, thus cobalt is extracted which is substantially free of nickel.

Abstract: The bayerite form of crystalline alumina, Al(OH).sub.3, contained within a macroporous ion exchange resin is converted to the gibbsite form of Al(OH).sub.3 by reaction with hot MgX.sub.2, where X is halide, followed by water-washing the MgX.sub.2 portion from the product, thereby causing the conversion of bayerite to the gibbsite form of crystalline Al(OH).sub.3. The gibbsite form may then be reacted with hot LiX solution, where X is anion, to form crystalline 2-layer LiX.2Al(OH).sub.3.nH.sub.2 O.

Abstract: Molten magnesium alloy is stirred under a substantially inert atmosphere as it is cooled to freezing, thereby forming discrete solid particles of the alloy. The process may be carried out batch-wise or continuously.

Abstract: Extrusion-cast films of high molecular weight, linear low density ethylene copolymers which inherently have high block and low slip characteristics are compounded with a minor amount of a secondary fatty acid amide and a finely-divided natural inorganic, e.g., silica, before being extrusion-cast as a thin film, the additives serving to substantially reduce the block and increase the slip characteristics of the film.

Abstract: Novel anion exchange resin composites having hydrous chromium III oxide (Cr.sub.2 O.sub.3.nH.sub.2 O) incorporated therein are useful in removing a wide array of polyvalent metal cations from aqueous solution.

Abstract: Crystalline transition metal aluminates conforming generally to the formulaMA.sub.a.sup.v Z.sub.b.sup.v.nAl(OH).sub.3.mH.sub.2 Owhere M is a transition metal having a valence charge of +2 selected from the group consisting of Cu, Zn, Mn, Fe, Co, and Ni, where AZ represents negative valence ions or radicals, v is a negative valence of 1, 2, or 3, n is a value to provide a mol ratio of Al/M of at least 1/1, preferably at least 1.5/1, and m is an integer of from zero to the maximum for waters of hydration, with (va)+(vb) equal to 2, are prepared in alkaline aqueous medium wherein transition metal compounds are caused to form adducts with amorphous hydrous alumina, Al(OH).sub.3, said adducts forming crystals when heated, said aluminates being useful, e.g., as ion exchangers and as spinel precursors among other things.

Abstract: Hypochlorite ions in aqueous solution are catalytically decomposed by the action of a poly-metal spinel of cobalt preferably coated on an inert, stable support. The spinel catalyst may contain dispersed therein, optionally, other "modifier" metal oxides which contribute better adherence of the spinel to the substrate and improve the toughness of the spinel coating. The substituted cobalt spinel conforms generally to the empirical formulaM.sub.x N.sub.y Co.sub.3-(x+y) O.sub.4where zero<x.ltoreq.1; zero.ltoreq.y.ltoreq.0.5; M is at least one metal of Periodic Table Groups IB, IIA, and IIB; N is at least one metal from Group IA; and zero<(x+2y).ltoreq.1.

Abstract: Backfills for magnesium galvanic anodes are prepared by blending calcium sulfite, B(OH).sub.3, and bentonite, wherein the bentonite contains a substantial amount of alkaline earth metal bentonite, such as calcium-bentonite.

Abstract: A magnesium anode backfill composition is prepared by mixing calcium sulfite, bentonite, and at least one compound selected from the group comprising sodium alkylates and sodium dialkyldithiocarbamates, wherein said bentonite contains a substantial amount of alkaline earth metal bentonite, such as calcium-bentonite.

Abstract: The density and capacity of macroporous ion exchange resins are increased by incorporating therein at least one of titania hydrate, zirconia hydrate, hydrated titanium phosphorous, and hydrated zirconium phosphate hydrates. Such resin composites are useful, e.g., in removing uranium values from aqueous solutions.

Abstract: Hypochlorite ions in aqueous solution are catalytically decomposed by the action of a poly-metal spinel of cobalt preferably coated on an inert, stable support. The spinel catalyst may contain dispersed therein, optionally, other "modifier" metal oxides which contribute better adherence of the spinel to the substrate and improve the toughness of the spinel coating. The substituted cobalt spinel conforms generally to the empirical formulaM.sub.x N.sub.y Co.sub.3-(x+y) O.sub.4where zero<x.ltoreq.1; zero.ltoreq.y.ltoreq.0.5; M is at least one metal of Periodic Table Groups IB, IIA, and IIB; N is at least one metal from Group IA; and zero<(x+2y).ltoreq.1.

Abstract: Blown films of LLDPE having reduced block and increased slip are provided by incorporating into the polymer, before blowing into films, effective amounts of certain fatty acid amides and inorganic materials which provide fast bloom, thereby obtaining an expedient effect of the additives on the surface properties of the blown film.

Abstract: Formation of hydrous alumina in the reticules of a weak-base anion exchange resin, wherein AlCl.sub.3 has been precipitated as hydrous alumina by reaction with ammonia, is improved by employing a subsequent treatment with HCl or with NH.sub.4 Cl and HCl to convert the exchange resin to the chloride form, thereby increasing the reticular volume of the resin, thus permitting subsequent precipitation of additional hydrous alumina therein.

Abstract: Particles of crystalline LiX.multidot.2Al(OH).sub.3 .multidot.nH.sub.2 O, where X is a monovalent, divalent, or trivalent anion, especially chlorine, are useful in separating hydrocarbons according to boiling point ranges.

Abstract: Electroconductive substrates for use as oxygen electrodes are coated with an optional interface layer and then with cobalt oxide spinels conforming substantially to the empirical formulaM.sub.x Z.sub.y CO.sub.3.sbsb.-(x+y) O.sub.4where M represents at least one metal from the Groups IB, IIA, IIB, where Z represents at least one metal from Group IA where x is equal to or greater than zero but not greater than 1, where y is equal to or greater than zero but not greater than 0.5, and where (x plus 2y) is equal to or greater than zero but not greater than 1. The composites are prepared by thermally oxidizing metal oxide precursors in-situ on the substrate, including, optionally, modifier metal oxide materials as a separate dispersed phase in the contiguous spinel structure. The interface layer comprises at least one oxide of Pb, Sn, Sb, Al, In, or mixtures of these. The electrodes are used as the anodic means in an electrolysis cell wherein oxygen is produced by electrolyzing an oxygen-containing electrolyte.

Abstract: A mixture of CaSO.sub.3 and bentonite, where the bentonite contains a substantial amount of alkaline earth metal bentonite, e.g., Ca-bentonite, is useful as a backfill composition for underground magnesium galvanic anodes. The backfill may optionally, and beneficially, contain sodium sulfite.

Abstract: Diaphragms for use in electrolytic cells, e.g., chlor-alkali cells, are beneficially prepared using pulverized expanded vermiculite in place of the historically popular asbestos.