Abstract:
A method of treatment of reactant fluids such as hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), hydrochlorocarbons (HCCs), and hydrocarbons (HCs) for the production of new chemical fluids. Another method of treatment for the transformation of the reactant fluids having impurities present in the chlorofluorocarbons (CFCs) or fluorocarbons (FCs) for yielding a high quality chemical product. Reactant fluids with impurities present in used CFC or FC may form an azeotropic mixture. A photochemical reaction is used wherein the reactant fluids are molecules with hydrogen atoms in a hydrogen-carbon bond. The process is comprised of the following steps: placing the reactant fluids into a process compartment of the photochemical reactor; placing halogen fluid or oxygen fluid into the process compartment of the photochemical reactor, wherein the halogen fluid is selected from a group consisting of chlorine (Cl2), bromine (Br2) and iodine (I2); and irradiating the fluids and the halogen or oxygen fluid using radiant energy from lamps operating in the visible and ultraviolet light regions of the electromagnetic spectrum to conduct thermolysis, photolysis and photochemical treatment by halogenating or oxidizing the molecules of the reactant fluids with the halogen or oxygen fluids to form halogenated or oxidized fluids during a dwell time period.
Abstract translation:用于生产新化学液体的反应物流体如氢氯氟烃(HCFC),氢氟碳化物(HFC),氢氯烃(HCC)和烃(HC))的处理方法。 用于转化具有存在于氯氟烃(CFC)或碳氟化合物(FC)中的杂质的反应物流体的另一种方法用于产生高质量的化学产品。 在使用的CFC或FC中存在杂质的反应物流体可形成共沸混合物。 使用光化学反应,其中反应物流体是在氢 - 碳键中具有氢原子的分子。 该方法包括以下步骤:将反应物流体置于光化学反应器的处理室中; 将卤素流体或氧气流体置于光化学反应器的处理室中,其中卤素流体选自氯(Cl 2/2),溴(Br 2 H 2) )和碘(I 2 H 2); 并且使用来自在电磁光谱的可见光和紫外光区域中操作的灯的辐射能来照射流体和卤素或氧气流体,以通过用卤素或氧气卤化或氧化反应物流体的分子来进行热解,光解和光化学处理 流体在停留时间段内形成卤化或氧化流体。
Abstract:
The present invention relates to a method and apparatus for direct fluorination of hydrocarbons (having 1 to 4 carbons) by using molecular fluorine gas in a liquid medium. The number of reactors or reaction steps is a function of the number of hydrogen atoms in the hydrocarbon to be replaced by molecular fluorine to produce a refrigerant or other product.
Abstract:
The method of treating a surface chemically by exposing the surface to a treating gas at high pressure for a time during which a surface reaction occurs, and then reducing the pressure of the gas for a time and removing reaction byproducts and then continuing the cycles of high pressure and low pressure until the surface reaction is completed.
Abstract:
A method for the production of nitrogen trifluoride (NF.sub.3) and hydrogen (H.sub.2) gas, starting with a molten flux including at least ammonia (NH.sub.3), a metal fluoride, and hydrogen fluoride (HF), including the steps of: circulating the molten flux from an electrolyzer, to an ammonia solubilizer, to a nitrogen trifluoride reactor, to a hydrogen fluoride solubilizer, and back to the electrolyzer; maintaining the quantity of the molten flux substantially constant by adding ammonia (NH.sub.3) and a carrier gas to the ammonia solubilizer and by adding hydrogen fluoride (HF) and a carrier gas to the hydrogen fluoride solubilizer; producing fluorine (F.sub.2) gas and hydrogen (H.sub.2) gas in the electrolyzer; transferring the carrier gas from at least one of the solubilizers to the nitrogen trifluoride reactor; mixing the fluorine gas and the carrier gas and supplying the mixed gases to the nitrogen trifluoride reactor; reacting the fluorine gas with the molten flux in the nitrogen trifluoride reactor to produce nitrogen trifluoride (NF.sub.3); and collecting the nitrogen trifluoride (NF.sub.3) produced at a nitrogen trifluoride condenser and collecting the hydrogen (H.sub.2) produced at a hydrogen condenser.
Abstract:
A gas-scrubber apparatus, including a chamber having an inlet means for receiving polluted gases to be scrubbed and having outlet means through which scrubbed gases are discharged, and heating elements for heating the chamber to maintain the polluted gases at predetermined temperature levels between the inlet means and the outlet means. The chamber includes a reaction zone for receiving a mixture of solid scrubbant materials for reacting with the polluted gases and a gas blower for directing the polluted gases to travel through the chamber to react with the scrubbant materials. At least one scrubber assembly is mounted in the reaction zone of the chamber having a baffle for collecting the polluted gases in the area adjacent the wall of the chamber. The scrubber assembly also includes thermo-convection pipes for transferring the collected polluted gases from the wall area towards the center of the chamber to maintain a substantially uniform heat distribution in a horizontal direction across the scrubber assembly. The chamber also maintains a vertical temperature gradient from the bottom to the top of the reaction zone of the chamber.
Abstract:
A method for sterilizing the surface of an article contaminated with bacteria and bacterial spores which comprises exposing the surface to an effective amount of a fluorine interhalogen compound sterilizing agent such as gaseous chlorine trifluoride or chloride pentafluoride, or mixtures thereof. The surface to be sterilized can be subjected to a gaseous atmosphere of controlled humidity immediately prior to or during exposure to the gaseous sterilant.
Abstract:
A method of mixing a gas and a vaporizable liquid to provide a gaseous mixture having a constant composition, regardless of change in rate of flow, except as hereinafter provided, comprising:(a) introducing a mixture comprising a gas and a vaporizable liquid in predetermined proportions into the tube side of a tube and shell heat exchanger at a flow rate sufficient to cause turbulent flow;(b) introducing a heating fluid into the shell side of the heat exchanger at a temperature sufficient to vaporize at least part of the vaporizable liquid whereby the vaporizable liquid separates into a vapor phase and a liquid phase; and(c) delivering the mixture of gas and vapor phase to a use point and recycling the liquid phase to a point at which it will be mixed with gas for introduction into step (a).
Abstract:
An electrolyzer, including a lower electrolyte chamber for receiving liquid electrolyte flux and having disposed therein anode and cathode electrodes for producing anodic and cathodic gases. A first barrier is disposed in the lower electrolyte chamber between the anode and cathode electrodes having a plurality of V-shaped passageways for allowing the passage of electrons but for preventing the recombination of anodic and cathodic gases. The electrolyzer also includes an upper gas chamber having an anodic gas compartment and a cathodic gas compartment for receiving therein the anodic and cathodic gases produced in the lower electrolyte chamber. The upper gas chamber includes a second barrier disposed between the anodic and cathodic gas compartments having no passageways in order to prevent the recombination of anodic and cathodic gases. The second barrier is connected to the first barrier. In addition, the electrolyzer further includes means for transferring the anodic and cathodic gases produced in the anodic and cathodic gas compartments to holding tanks for storing of the anodic and cathodic gases.
Abstract:
An apparatus for the direct fluorination of solid particles of polymeric resins capable of being fluorinated in which the solid particles are in contact with the gaseous phase of fluorine/dense carrier fluid in a tubular reactor with an internal mechanical device comprising a rotatable shaft with screw flight, multiblade or wire brush that mechanically fluidizes the solid phase. The design of the internal mechanical device is a function of the diameter and length of the tubular reactor and the reaction time and other physical properties of the solid particles of polymeric resins. The internal mechanical device prevents agglomeration of the solid particles and promotes uniform contact with the gaseous phase by inducing mobility to the solid particles. The enhancement of solid surface contact with the gaseous phase assists the reaction between the solid polymeric resin and the elemental fluorine, as well as the heat dissipation into the dense carrier fluid.
Abstract:
An apparatus for the direct fluorination of solid particles of polymeric resins capable of being fluorinated in which the solid particles are contacted by a flow of a mixture of fluorine and carrier fluid in a solid-gas reactor. In the solid-gas reactor, the fluid flow continuously agitates or fluidizes the solid particles to maintain the solid particles in motion. The degree of motion of the solid particles is a function of the linear velocity of the fluid and of the physical properties of the solid particles such as the solid bulk density, particle size, geometry of the solid particle, and adhesion or agglomeration of solid particles. The solid-gas reactor can be arranged with single or multi-reactors in batch or continous mode.