Abstract: Means are provided for increasing the productivity of a hydrocarbon formation by modifying the formation in the vicinity of the borehole by a succession of treatments utilizing a first fluid which releases energy within the borehole and a second fluid modifying the fluid within the borehole. The means provides successive treatment of steam, carbon dioxide, oxygen, and inert gases in any order desired.

Abstract: A process for the destruction of cyanide in an aqueous solution containing an iron cyanide complex wherein the pH of the solution is adjusted to be between 11 and 12 and the solution is irradiated with ultraviolet radiation. The pH of the solution is subsequently reduced to between 8 and 11, hydrogen peroxide is added, and the solution is then reacted absent further radiation.

Abstract: A process was developed using hydrogen peroxide for the oxidation of thallium (I) to thallium (III) in a solvent at a pH of 9.0 or less. Any convenient solvent may be used, such as water, acetic acid, methanol, or a mixture of solvents. Optionally, a buffered solvent may be used.

Abstract: A process was developed to optimize the thallium (III) produced by the reaction of hydrogen peroxide and thallium (I). In the optimized process, thallium (III) is removed from the reaction mixture during the oxidation reaction.

Abstract: In the anthraquinone process for manufacturing hydrogen peroxide an improvement is obtained in the productivity of a fixed-bed catalytic hydrogenator operating in the dispersed-bubble flow regime by premixing the hydrogen gas and the working solution by means of a static mixer.

Abstract: A process for converting a thallium (I) compound to a thallium (III) compound comprising contacting an alkaline solution of the thallium (I) compound with gaseous oxygen and in the presence of a peroxygen compound.

Abstract: Compositions are provided suitable for the etching of printed circuits from a laminate of copper metal and an etch resistant backing at a low hydrogen peroxide concentration and at a low temperature. The etching composition contains sulfuric acid, hydrogen peroxide as the oxidant, thiosulfate ion to counteract the depressing effect of chloride ion on the etch rate, an unsaturated organic hydroxy compound to stabilize the hydrogen peroxide in the presence of copper, and an aminomethylenephosphonic acid.

Abstract: A process to manufacture trichloroisocyanuric acid of commercially acceptable size and quality from a mother liquor used to produce an alkali metal salt of dichloroisocyanurate by monitoring and, if necessary, adjusting the mol ratio of available alkalinity to chlorine required to convert all of the triazine compounds in the mother liquor to trichloroisocyanuric acid to be between 1.0 and 1.3 with an alkali metal salt of carbonic acid.

Abstract: The invention relates to the dispensing of hydrogen peroxide into a clothes dryer. The aqueous hydrogen peroxide is placed into a container with a microporous, hydrophobic surface which is heated whereby the hydrogen peroxide is vaporized and delivered to the interior of the dryer where it is available to bleach textiles.

Abstract: An anthraquinone autoxidation process has been developed for producing hydrogen peroxide employing N-substituted-2-pyrrolidones as solvents for the anthrahydroquinone formed in the reduction step. These new solvents have improved solubility characteristics over prior solvents. Particular N-substitutents are alkyl and alkaryl groups containing 6 to 12 carbon atoms.

Abstract: Allylic esters of tetrachlorophthalic acid are formed using allylic alcohol both as a reactant and a solvent. In the first step, the alcohol and a base are reacted with tetrachlorophthalic anhydride to form the half-ester sodium salt. In the second step, the sodium salt is reacted with allylic halide to form the diester which crystallizes from solution. The excess solvent may be treated to recover the raw materials or recycled.

Abstract: Either commercial yellow phosphorus or a phosphorus sludge is reacted with a slurry of calcium hydroxide in aqueous sodium hydroxide to form a sodium hypophosphite solution containing calcium and hydroxide ions. The solution is neutralized with phosphoric acid or an acid phosphate salt with the co-production of an insoluble calcium phosphate. The neutral solution is contacted with an ion exchange resin charged with sodium ions to remove any remaining calcium ions.

Abstract: Allylic esters of tetrabromophthalic acid are formed using allylic alcohol both as a reactant and a solvent. In the first step, the alcohol and a base are reacted with tetrabromophthalic anhydride to form the half-ester sodium salt. In the second step, the half-ester sodium salt is reacted with allylic halide to form the diester which crystallizes from solution. The excess solvent may be treated to recover the raw materials or recycled.

Abstract: Stabilizer formulations have been developed for commercial hydrogen peroxide stored in stainless steel containers. These stabilizers, which include benzene phosphonous acid, 2,2'-dithiobenzoic acid, 1-allyl-thiourea, and thiocarbanilide are effective in the presence of typical decomposition catalysts when used in conjunction with typical organic phosphonic stabilizer systems, even when the commercial organic phosphonic stabilizers are present in less than the usually recommended quantities.

Abstract: Removing hydrogen sulfide from geothermal steam condensate is described whereby the hydrogen sulfide that is present in the condensate from a geothermal steam plant is oxidized with a peroxygen compound such as hydrogen peroxide in the presence of catalytic quantities of sodium vanadate under neutral to alkaline conditions.

Abstract: Hydrogen peroxide is prepared by the homogeneously catalyzed reaction of hydrogen and oxygen in an inert organic solvent, by employing a palladium complex, selected from palladium(O) complexes of dibenzylidene acetone, as the catalyst.

Abstract: Hydrogen peroxide is prepared by the homogeneously catalyzed reaction of hydrogen and oxygen in an inert organic solvent, by employing an iridium complex as the catalyst in the presence of a quinone reaction promoter.

Abstract: Screen undersize anhydrous sodium tripolyphosphate particles, containing at least 2 weight percent of an alkali metal pyrophosphate, preferably sodium pyrophosphate, are moisturized with from about 145% to about 185% by weight of the theoretical amount of water to convert the anhydrous sodium tripolyphosphate into the hexahydrate form. The material is agitated during moisturization to keep the temperature below about 80.degree. C., and the moisturized material is dried at a temperature below 80.degree. C. to remove most of the free moisture. The product recovered from the drying step is a granular sodium tripolyphosphate hexahydrate product having a bulk density within the range of 0.59 g/cc to 0.64 g/cc and a friability of no higher than 30%.