Abstract: Disclosed herein are azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride. The azeotrope compositions are useful in processes to produce and in processes to purify 1,2,3,3,3-pentafluoropropene. Additionally, disclosed herein are azeotrope and near-azeotrope compositions comprising 1,1,1,2,3,4,4,5,5,5-decafluoropentane and hydrogen fluoride.

Abstract: Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride. These azeotrope and near-azeotrope compositions are useful in processes to produce E-1,3,3,3-tetrafluoropropene and in processes to purify E-1,3,3,3-tetrafluoropropene from mixtures of E-1,3,3,3-tetrafluoropropene with 1,1,1,3,3-pentafluoropropane and/or with hydrogen fluoride.

Abstract: Disclosed herein are azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride. The azeotrope compositions are useful in processes to produce and in processes to purify 1,2,3,3,3-pentafluoropropene.

Abstract: Disclosed herein are azeotrope and near-azeotrope compositions comprising 1,1,1,2,2,4,5,5,6,6,7,7,7-tridecafluoro-3-heptene (HFC-162-13mczy, CF3CF2CH?CFCF2CF2CF3) and 1,1,1,2,2,3,5,5,6,6,7,7,7-tridecafluoro-3-heptene (HFC-162-13mcyz, CF3CF2CF?CHCF2CF2CF3) and hydrogen fluoride (HF) and to azeotrope and near-azeotrope compositions comprising 1,1,1,2,2,3,4,5,5,6,6,7,7,7-tetradecafluoroheptane and hydrogen fluoride (HF). These compositions are useful in processes to produce and purify HFC-162-13mcyz, HFC-162-13mczy and HFC-63-14mee.

Abstract: Disclosed herein are azeotrope or near-azeotrope compositions comprising 2,3,3,3-tetrafluoropropene (HFC-1234yf) and hydrogen fluoride (HF). These compositions are useful in processes to produce and purify HFC-1234yf. Additionally, disclosed herein are processes for the manufacture of HFC-1234yf.

Abstract: Disclosed herein are processes for the production of hydrofluoroolefins by dehydrofluorination. Also disclosed herein are processes for separation of hydrofluoroolefins from hydrofluorocarbons and from hydrogen fluoride.

Abstract: 1,1,3,3,3-Pentafluoropropene (CF3CH?CF2, HFC-1225zc) can be produced by pyrolyzing 1,1,1,3,3,3-hexafluoropropane (CF3CH2CF3, HFC-236fa) in the absence of dehydrofluorination catalyst at temperatures of from about 700° C. to about 1000° C. and total pressures of about atmosphere pressure in an empty, tubular reactor, the interior surfaces of which comprise materials of construction resistant to hydrogen fluoride.

Abstract: A method and apparatus for product separation and processing are provided where an apparatus for sorting and grouping objects includes: an attribute measurement device 20; a first conveyor 18 moving at a first rate of speed; a second conveyor 26 oriented perpendicularly to the first conveyor 18 and moving at a second rate of speed which is less than the first rate of speed; a position determination device 30; and a controller unit 22 that groups sets of objects 16 matching a target attribute based on attribute measurements and position information from a population of objects 28.

Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2?CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons.

Abstract: Apparatuses and methods for weighing a product along a product determination and separation line are provided. A conveyor assembly is positioned on a load cell to determine a combined weight of the conveyor assembly and the product that is being transported by the conveyor assembly. The frame of the conveyor assembly includes several pivot connections. A first pivot connection allows the moving surface of the conveyor assembly to be rotated from an operating position to a position in which the underside of the conveyor assembly can be easily cleaned. A second pivot connection is located between two portions of a support for a conveyor belt. The second pivot allows for easy application and release of tension on the conveyor belt for assembly and disassembly.

Abstract: Disclosed is a distillation process for reducing the concentration of impurities dinitrogen difluoride and dinitrogen tetrafluoride in nitrogen trifluoride. The process comprises: (a) distilling a mixture comprising nitrogen trifluoride and dinitrogen difluoride and/or dinitrogen tetrafluoride in a distillation column in the presence of a compound having a higher normal boiling point than nitrogen trifluoride; (b) removing a mixture comprising dinitrogen difluoride and/or dinitrogen tetrafluoride as a sidedraw from the distillation column; (c) removing a mixture comprising the compound having a higher normal boiling point than nitrogen trifluoride from the bottom of the distillation column; and (d) removing a nitrogen trifluoride product having reduced concentration of dinitrogen difluoride and/or dinitrogen tetrafluoride from the top of the distillation column.

Abstract: A welding material assembly is constructed and arranged to position a welding material in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are to be joined. The welding material assembly includes at least one welding material member mounted on a flexible carrier sheet in a predetermined arrangement with each welding material member being constructed of an electrically conductive metallic welding material capable of melting when heated by application of an electrical current. Each welding material member is mounted on the sheet such that when the sheet is placed between the exterior surfaces of the first and second weldable members to be welded, each welding material member is electrically conductively disposed therebetween.

Abstract: A welding material assembly is constructed and arranged to position a welding material in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are to be joined. The welding material assembly includes at least one welding material member mounted on a flexible carrier sheet in a predetermined arrangement with each welding material member being constructed of an electrically conductive metallic welding material capable of melting when heated by application of an electrical current. Each welding material member is mounted on the sheet such that when the sheet is placed between the exterior surfaces of the first and second weldable members to be welded, each welding material member is electrically conductively disposed therebetween.

Abstract: A welding material assembly is constructed and arranged to position a welding material in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are to be joined. The welding material assembly includes at least one welding material member mounted on a flexible carrier sheet in a predetermined arrangement, each welding material member being constructed of an electrically conductive metallic welding material capable of melting when heated by application of an electrical current and each carrier sheet being constructed of a material that is electrically nonconductive. Each welding material member is mounted on the sheet such that when the sheet is placed between the exterior surfaces of said first and second weldable members to be welded each said welding material member is electrically conductively disposed therebetween.

Abstract: A hanging system for wet bathing suits including a support plate. A trough portion is secured to the support plate upwardly of a lower edge thereof. A plurality of support rods extend orthogonally outward from the support plate downwardly of an upper edge thereof for supporting clothing thereon.

Abstract: This invention is a regenerable process for producing elemental sulfur from SO.sub.2 initially contained in a dilute gas source by: (1) absorbing the SO.sub.2 in a concentrated Na.sub.2 SO.sub.3 solution to convert most of the Na.sub.2 SO.sub.3 to Na.sub.2 S.sub.2 O.sub.5 ; (2) separating one third of the absorbed SO.sub.2 ; (3) reacting the residual mixture with solid NaHCO.sub.3 to form gaseous carbon dioxide used in a subsequent step and a slurry composed of solid Na.sub.2 SO.sub.3 suspended in a Na.sub.2 SO.sub.3 solution; (4) separating solid Na.sub.2 SO.sub.3 from the solution which is recycled to (1) above; (5) reducing solid Na.sub.2 SO.sub.3 to Na.sub.2 S; (6) reacting the Na.sub.2 S with H.sub.2 O and CO.sub.2 to form solid NaHCO.sub.3 which is recycled to (3) above and gaseous H.sub.2 S; (6) reacting gaseous H.sub.2 S with SO.sub.2 separated in (2) above to form water and elemental sulfur.

Abstract: The present invention provides a method of using air to reclaim and recycle potentially contaminating NO in a system producing ferric sulfate solution from the oxidation of ferrous sulfate and sulfuric acid in the presence of NO and oxygen. The present invention economically avoids a potentially wasteful and hazardous production of NO containing gas.

Abstract: This invention is a regenerable process for converting H.sub.2 S to S by (1) reacting the H.sub.2 S with Fe.sub.2 (SO.sub.4).sub.3 to form S, FeSO.sub.4 and H.sub.2 SO.sub.4 ; (2) separating the S; oxidizing the FeSO.sub.4 and H.sub.2 SO.sub.4 with a gas containing oxygen in the presence of NO to form H.sub.2 O, Fe.sub.2 (SO.sub.4).sub.3 and a gas with a depleted oxygen content, separating the gas from the Fe.sub.2 (SO.sub.4).sub.3 and recycling the Fe.sub.2 (SO.sub.4).sub.3 to the S formation reaction.

Abstract: A process for the preparation of sulfonated aromatic amines starting with the corresponding aromatic amine sulfate salt which employes a rotating reactor in which there is maintained a rapidly moving heated cascading bed of solid particles composed largely of the final product whose temperature is above or brought above the rearrangement temperature. The reactants are fed to the bed at such a rate that the cascading movement of the bed is unaffected. The heat imparted to the amino hydrogen sulfate within the bed by the surrounding particles orient the desired rearrangement to take place along with the vaporization and elimination of water.

Abstract: A process for removing oxides of nitrogen from a gas in which the molar ratio of NO to NO.sub.2 is greater than 1. Sufficient NO is oxidized by the reaction NO+2HNO.sub.3 =H.sub.2 O+3NO.sub.2 by a solution whose HNO.sub.3 concentration is maintained above about 20% to form a gas whose molar ratio of NO to NO.sub.2 is close to 1. Substantially equivalent amounts of NO and NO.sub.2 are absorbed by a solution whose pH is maintained below about 2 containing HNO.sub.3 and dissolved NH.sub.3. The absorbed oxides of nitrogen react with the dissolved NH.sub.3 at a temperature above about 50.degree. C. to form elemental nitrogen and water. The process can be carried out in several steps or in substantially one step.