Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a disulfone of the formulaRSO.sub.2 SO.sub.2 R.sub.1wherein R and R.sub.1, which may be alike or different, are each selected from the class consisting of an alkyl radical of 1 to 18 carbon atoms; a cycloalkyl radical of 3 to 7 carbon atoms said alkyl and cycloalkyl radicals bearing optional substituents selected from the group consisting of lower alkoxyl, fluoro and chloro; and an aromatic radical selected from the group consisting of phenyl, naphthyl and heterocyclic having 1 ring or 2 fused rings containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said aromatic radicals optionally bearing 1 to 3 substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, benzamido, chlorine and bromine.

Abstract: Novel hydrated, potassium-containing chloroisocyanurate complex compounds and mixtures thereof are described together with processes for preparing the same. The novel compounds of this invention, namely, [(mono-trichloro,) tetra-(monopotassium dichloro,)] penta-isocyanurate tetrahydrate, and hydrated (mono-trichloro,) (monopotassium dichloro,) di-isocyanurate and mixtures thereof, are prepared by reacting in a substantially dry state trichloroisocyanuric acid and potassium dichloroisocyanurate monohydrate, the reaction products being determined by the molecular ratio of the starting materials. These novel compounds are resistant to burning, will not undergo self-propagating decomposition when subjected to a source of intense heat, as for example a hot wire, and are useful as a source of available chlorine in, for example bleaching, sterilizing, oxidizing and disinfecting operations.

Abstract: A method of closing phosphorus furnace tapholes which comprises applying pneumatic pressure at the taphole opening to force molten material in the boretube back into the furnace and then introducing sand particles through the taphole to meet and effect solidification of incoming molten furnace material thereby sealing off the inner opening of the boretube and filling the remainder of the boretube with sand. Tapping is readily accomplished by blowing out the loose sand and breaking the inner seal of solidified furnace material.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an N-sulfonylimidazole of the formula: ##STR1## wherein R.sub.2, R.sub.3 and R.sub.4 are each selected from the class consisting of hydrogen, halogen, alkoxy of 1 to 16 carbon atoms, carbonylmethoxy, nitro, an aliphatic hydrocarbon radical of 1 to 16 carbon atoms, a cycloaliphatic hydrocarbon radical of 3 to 7 carbon atoms, an aromatic hydrocarbon radical of the benzene and naphthalene series and a heterocyclic radical of 1 to 2 rings each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur while taken together R.sub.3 and R.sub.4 can complete a benzene ring and R.sub.1 is a hydrocarbon or heterocyclic radical as above defined for R.sub.2, R.sub.3 and R.sub.4. Also described are dry blend compositions containing the bleach bath components.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an aromatic sulfonic anhydride of the formula RSO.sub.2 --O--SO.sub.2 R, wherein each R is an aromatic ring system selected from the class consisting of a phenyl group, taken together an o-phenylene group, a naphthyl group, taken together an o-naphthylene group and a heterocyclic group having 1 ring or 2 fused rings, said ring or rings containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing 1 to 3 substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, benzamido, chlorine and bromine. Aromatic is used herein in its modern sense to signify an organic ring system having aromatic character including both aromatic hydrocarbon and heterocyclic ring systems.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an aromatic sulfonyl fluoride of the formula ArSO.sub.2 F, wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each ring containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine. Also described are dry blend compositions containing the bleach bath components.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a sulfonic anhydride of the formula:R.sub.1 SO.sub.2 OSO.sub.2 R.sub.2wherein each of R.sub.1 and R.sub.2 is selected from the class consisting of an alkyl radical of 1 to 18 carbon atoms; a cycloalkyl radical of 3 to 7 carbon atoms; a phenyl radical; a naphthyl radical and a heterocyclic radical having 1 ring or 2 fused rings, said ring or rings containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, it being understood that R.sub.1 and R.sub.2 can be identical or different except where they are phenyl or naphthyl in which case R.sub.1 and R.sub.2 are always different. Also described are dry blend compositions containing the bleach bath components.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator, an anhydride of a carboxylic acid with a sulfonic acid selected from the formulae consisting ofR.sub.1 --(SO.sub.2 OC(O)--R.sub.2).sub.n and (R.sub.1 --SO.sub.2 OC(O)).sub.n R.sub.2wherein n is an integer of 1 to 3; each of R.sub.1 and R.sub.2, which may be alike or different, is selected from the class consisting of a 1 to 3 valent hydrocarbon radical derived from an alkane of 1 to 16 carbon atoms, a cycloalkane of 3 to 7 carbon atoms and an arene of 6 to 12 aromatic carbon atoms while taken together R.sub.1 and R.sub.

Abstract: Flame retardancy is imparted to curable vinyl-unsaturated polymers such as unsaturated polyesters and diallyl and dimethallyl phthalates, by incorporating with them from about 5 to 50% of total copolymer weight of diallyl tetrabromophthalate, a monomer which copolymerizes with the unsaturated polymer.

Abstract: Dextrin carboxylates having about 20 to 100 anhydroglucose units of which from about 2.2 to about 3.0 average OH groups per unit are esterified through one of the carboxyls of a non-aromatic polycarboxylic acid of 2-4 carboxyls containing 2 to 10 carbon atoms, are prepared by (1) reacting the dextrin with at least about 2.8 moles of the anhydride of the polycarboxylic acid in acetic acid in the presence of a tertiary amine catalyst and (2) adding the reaction mixture to a solvent which precipitates the dextrin carboxylate and (3) isolating the so-produced dextrin carboxylate.

Abstract: This specification discloses a vapor phase process for oxidizing acetaldehyde to peracetic acid, acetic acid being formed as an additional product. Oxygen is used as the oxidizer at concentrations of less than 10% by using excess acetaldehyde and diluting the reaction with recycle gas. Initial mixing of the oxygen with acetaldehyde is done in an explosion-suppression chamber prior to introducing the reaction mixture into a reactor.

Abstract: There is disclosed a carpet cleaning concentrate particularly suitable for use in connection with carpet steam cleaning machines which comprises 75 to 95% by weight sodium tripolyphosphate with minor amounts of sodium metasilicate pentahydrate, a low foaming nonionic surfactant and, generally, some water.

Abstract: There are disclosed triaryl phosphate ester functional fluids, such as lubricants and hydraulic fluids, which contain as the oxidatively stable component, a mixed tertiary-butylphenyl/phenyl phosphate containing about 15 to 60% by weight t-butylphenyl radicals.

Abstract: Method for subterranean slurry drilling and mining of granular ore, such as phosphates, with a combined drilling and mining apparatus. The apparatus for performing the method includes a tool string having a drilling head and mining head that are selectively interchangeable on its upper end for drilling into one or more ore strata to be mined and thereafter to remove ore from the strata as a slurry. The drill string includes a plurality of inner and outer pipe sections connected to a mining nozzle section, to an eductor pump section, and to a drill bit at its lower end. A drilling/mining liquid is directed through the tool string during both the drilling and mining modes of operation. During drilling, liquid is directed through a foot valve into the rotating bit to wash cuttings to the surface externally of the tool. During mining, the tool string is rotated, the foot valve is closed, and a mining nozzle is opened thereby causing liquid jetting from the mining nozzle to reduce the ore to a slurry.

Abstract: Apparatus for subterranean slurry drilling and mining of granular ore, such as phosphates, with a combined drilling and mining apparatus. The apparatus includes a tool string having a drilling head and mining head that are selectively interchangeable on its upper end for drilling into one or more ore strata to be mined and thereafter to remove ore from the strata as a slurry. The drill string includes a plurality of inner and outer pipe sections connected to a mining nozzle section, to an eductor pump section, and to a drill bit at its lower end. A drilling/mining liquid is directed through the tool string during both the drilling and mining modes of operation. During drilling, liquid is directed through a foot valve into the rotating bit to wash cuttings to the surface externally of the tool. During mining, the tool string is rotated, the foot valve is closed, and a mining nozzle is opened thereby causing liquid jetting from the mining nozzle to reduce the ore to a slurry.

Abstract: Aqueous waste streams from the production of chlorinated isocyanurates are oxidized with sodium hypochlorite to remove therefrom dissolved cyanurate compounds.

Abstract: Continuous process for producing carbon bisulfide by reaction of sulfur and hydrocarbon. A hydrocarbon stream is introduced into a sulfur stream and the hot reaction mixture is moved vertically from the zone of introduction and/or the streams are fed countercurrent to impinge on each other.

Abstract: Sulfur produced by the reaction of hydrogen sulfide and sulfur dioxide in the presence of organic solvent solutions of alkali or alkaline earth metal salts of carboxylic acids is contaminated with these carbonaceous materials. The sulfur is purified by washing with water at elevated temperatures to reduce the carbonaceous material content to 0.007% carbon, by weight.

Abstract: Subterranean slurry mining with one or more mining nozzles which, during mining, directs a high pressure jet of liquid into a granular ore matrix to reduce the ore to a slurry which is thereafter pumped to the surface by an eductor pump including a high pressure eductor nozzle. The drilling and mining apparatus includes several different types of hydraulic control systems which operates at or below system pressure and allows the apparatus to be changed between the mining and a drilling mode. During drilling, the liquid is directed through an open foot valve and drill bit into the well cavity being drilled to wash the cuttings to the surface at which time the mining and eductor nozzles are closed. During mining the control systems close the foot valve and control the opening of the mining nozzle (or nozzles) and eductor nozzle.

Abstract: Aqueous, highly acidic solutions of hydrogen peroxide (pH under 2.0) containing iron contamination at the level of 30 to 30,000 ppm, are stabilized against undesired hydrogen peroxide decomposition by the dissolution therein of amino(methyl phosphonic acid)s or their soluble salts. Additional stabilizers are desirably used when other metallic contaminants are present.