SOLVAY FLUOR GMBH Patent applications |
Patent application number | Title | Published |
20130079267 | Nonflammable compositions comprising fluorinated compounds and use of these compositions - Nonflammable compositions comprising fluorinated compounds selected from the group consisting of hydrofluoroalkanes, hydrofluoroalkenes, partially or perfluorinated aromatic compounds, hydrofluoroethers, and fluoroketones; 1,2-dichloroethylene, especially trans-1,2-dichloroethylene; and a stabilizer. These non-flammable compositions which preferably contain 1,1,1,3,3-pentafluorobutane, can be used especially as solvents for cleaning and defluxing electronic components and for degreasing metals. The compositions further may comprise a propellant, e.g. 1,1,1,2-tetrafluoroethane. These compositions are especially suitable as flushing agent. | 03-28-2013 |
20130037172 | Fine particulate flux - A fine particulate flux, an aqueous flux preparation comprising this flux, a method for the manufacture of a coated part of aluminum, aluminum alloys, steel, copper or titanium using such flux, and a method for brazing parts of aluminum or aluminum alloys to parts of aluminum, aluminum alloys, steel, copper or titanium using such flux. The flux can be obtained by sieving, or it can be obtained by removing solids, e.g., in a cyclone, from the drying gases obtained when wet fluxes are dried, especially after their manufacture. Fine particulate flux increases the viscosity of flux preparations comprising the flux dispersed in water or an aqueous or liquid organic carrier. | 02-14-2013 |
20120315497 | Flux forming an insoluble brazing residue - Aluminum parts, e.g., heat exchangers, with improved resistance towards corrosion caused by contact with stationary water or aqueous compositions such as cooling water can be obtained by addition of Li compounds in specific amounts to the flux used for brazing the parts. LiF and especially Li fluoroaluminates are very suitable. The flux and the Li salt can be dispersed in water or an aqueous composition separately. | 12-13-2012 |
20120255992 | Flux preparation with increased dynamic viscosity containing dehydrated K2A1F5, method to produce it and method to use it - Aqueous flux preparations with increased dynamic viscosity are provided. In the flux preparations, irreversibly dehydrated K | 10-11-2012 |
20120253058 | Manufacture of difluoroethylene carbonate, trifluoroethylene carbonate and tetrafluoroethylene carbonate - Difluoroethylene carbonate, trifluoroethylene and tetrafluoroethylene carbonate are produced by the reaction between elemental fluorine and ethylene carbonate or fluorinated ethylene carbonates with a lower degree of fluorination. | 10-04-2012 |
20120228144 | High-purity fluorine gas, the production and use thereof, and a method for monitoring impurities in a fluorine gas - An apparatus for producing a fluorine gas, comprising at least one fluorine generating cell, and at least one fluorine generating cell detector for detecting components of products obtained by the fluorine generating cell, wherein at least one of the fluorine generating cells is connected with the fluorine generating cell detector. | 09-13-2012 |
20120220788 | Continuous preparation of carbonates - A process for the manufacture of fluoroethylene carbonate or difluoroethylene carbonate by reaction of ethylene carbonate and F | 08-30-2012 |
20120214043 | Lithium sulfur battery - A lithium sulfur battery comprising an electrolyte solvent which comprises at least one fluorosubstituted compound is described. Preferred fluorosubstituted compounds which are predominantly solvents are notably selected from the group consisting of fluorosubstituted carboxylic acid esters, fluorosubstituted carboxylic acid amides, fluorosubstituted fluorinated ethers, fluorosubstituted carbamates, fluorosubstituted cyclic carbonates, fluorosubstituted acyclic carbonates, fluorosubstituted ethers, perfluoroalkyl phosphoranes, fluorosubstituted phosphites, fluorosubstituted phosphates, fluorosubstituted phosphonates, and fluorosubstituted heterocycles. Monofluoroethylene carbonate, cis-difluoroethylene carbonate, trans-difluoroethylene carbonate, 4,4-difluoroethylene carbonate, trifluoroethylene carbonate, tetrafluoroethylene carbonate, 4-fluoro-4-methyl-1,3-dioxolane-2-one, 4-fluoro-4-ethyl-1,3-dioxolane-2-one, 2,2,2-trifluoroethyl-methyl carbonate, 2,2,2-trifluoroethyl-fluoromethyl carbonate are preferred. The solvent may further comprise a non-fluorinated solvent, e.g., ethylene carbonate, a dialkyl carbonate, or propylene carbonate. Use of such fluorinated compound as additive for such batteries and specific electrolyte solutions. | 08-23-2012 |
20120211023 | Method for Removing Deposits - A method for removing a silicon hydride from the surface of a solid body which comprises treating the silicon hydride with a gas comprising molecular fluorine or reactive species generated from molecular fluorine. | 08-23-2012 |
20120209010 | Method for the Manufacture of Fluorinated Ethylene Carbonates - Difluoroethylene carbonate, trifluoroethylene carbonate and tetrafluoroethylene carbonate are synthesized from dichloroethylene carbonate, trichloroethylene carbonate and tetrachloroethylene carbonate with fluorinating agents, e.g. alkali metal fluorides, antimony fluorides and especially the HF adducts of amines The fluorinated carbonates are suitable as additives in lithium ion batteries. | 08-16-2012 |
20120178262 | Process for the manufacture of wafers for solar cells at ambient pressure - Solar cells are manufactured from P-type doped monocrystalline or polycrystalline silicon ingots by sawing wafers and applying an N-type doping. The wafers can be treated by etching them, in a plasma assisted process, with an etching gas containing or consisting of carbonyl fluoride. Hereby, the surface is roughened so that the degree of light reflection is reduced, or glass-like phosphorus-containing oxide coatings caused by phosphorus doping are removed. Carbonyl fluoride is also very suitable to selectively etch silicon oxide in silicon oxide/silicon composites. | 07-12-2012 |
20120157708 | Process for the manufacture of sevoflurane - A process for the manufacture of Sevoflurane CF | 06-21-2012 |
20120157695 | Process for the Distillative Purification of Fluoroethylene Carbonate - Crude fluoroethylene carbonate obtained by the fluorination of ethylene carbonate and elemental fluorine containing not more than 5% by weight of HF is purified by at least two subsequent distillation steps. The bulk of HF can be removed, if desired, in a preliminary HF removal step, e.g., by stripping, before performing the distillation. Further, if desired, a second HF removal step can be performed by contacting the crude mixture or the distillate obtained after the first distillation step with an adsorbent for HF, e.g., silica gel. The distillation can be performed batch wise. It is preferred to perform the distillation continuously. It yields purified fluoroethylene carbonate with an HF content of equal to or less than 30 ppm. The purified fluoroethylene carbonate can be applied as solvent additive for lithium ion batteries. | 06-21-2012 |
20120116111 | Process for the preparation of fluoroalkyl (fluoro)alkyl carbonates and carbamates - Fluoroalkyl alkyl carbonates and fluorosubstituted carbamates which are suitable as additives or solvents in lithium ion batteries are prepared from fluoroalkyl fluoroformates and the respective alcohol or amine. Methanol is the preferred alcohol, dimethylamine and diethylamine are preferred amines. Fluoromethyl methyl carbonate is the preferred compound to be produced. Fluoroalkyl fluoroformates can be prepared from aldehydes and carbonyl fluoride. | 05-10-2012 |
20120085959 | USE OF UNSATURATED HYDROFLUOROCARBONS - Use of certain hydrofluoroalkenes for foam blowing, solvent cleaning, refrigeration, as etching gas for semiconductor etching or chamber cleaning, heat transfer, fire extinguishing and for the production of aerosols. | 04-12-2012 |
20120070749 | Process for the preparation of 4-fluoro-4-R-5-R'-1,3-dioxolane-2-ones - The present invention concerns 4-fluoro-4-R-5-R′-1,3-dioxolane-2-ones, wherein R is an alkyl group and R′ is H or a C1 to C3 alkyl group, their manufacture, solvent mixtures for lithium ion batteries containing them and conductive salt solutions for lithium ion batteries, e.g. solutions containing LiPF | 03-22-2012 |
20110297883 | Compositions of esters of fluorosubstituted alcanoic acids - Composition of esters of fluorosubstituted alcanoic acids, comprising or consisting essentially of a compound of a formula selected from the group consisting of:
| 12-08-2011 |
20110244220 | Metals parts containing a protective coating - Metal parts, especially parts made from aluminium, aluminium alloys, steel and stainless steel, are described which comprise a coating containing TiOF | 10-06-2011 |
20110233104 | Container containing fluorinated organic carbonates - A container containing a fluorinated organic carbonate and a gas atmosphere which contains a cover gas selected from the group consisting of a noble gas, e.g., argon, xenon, a gaseous fluorinated aliphatic carbon which is heavier than air and does not interfere with the fluorinated organic compound, SF | 09-29-2011 |
20110226368 | Bundle trailer for gas delivery - A bundle trailer for containers including (i) a supporting frame on which a plurality of bundles are located; (ii) a plurality of bundles, each bundle comprising: a bundle frame, a plurality of containers containing a chemical, and at least one bundle value for controlling delivery of the chemical in the containers; (iii) at least one trailer valve; and (iv) at least one clamp for fixing the bundle is disclosed. The bundle trailer is capable of delivering high purity hygroscopic, corrosive chemicals, such as elemental fluorine and mixtures thereof, with good flexibility, high safety, and low cost. | 09-22-2011 |
20110224464 | Process for the preparation of chlorofluoroalkenes - One or more hydrochlorofluoroalkenes can be produced by dehydrofluorination of a hydrochlorofluoroalkane over a X-ray amorphous high surface metal fluoride or a X-ray amorphous or weakly crystalline metal oxide fluoride wherein the metal is selected from the 2 | 09-15-2011 |
20110220617 | Anticorrosive flux - Aluminum parts, such as heat exchangers, with improved resistance towards corrosion caused by contact with stationary water or aqueous compositions can be obtained by addition of Li compounds to the flux used for brazing such parts. LiF and especially Li fluoroaluminates are very suitable. Another aspect of the invention concerns fluxes containing Li salts and their use for brazing of aluminum parts. | 09-15-2011 |
20110215273 | Hydrofluoroolefins, manufacture of hydrofluoroolefins and methods of using hydrofluoroolefins - A hydrofluoroolefin and hydrofluoroolefin isomers and a process for manufacture them comprising eliminating HF from a fluorinated precursor compound are described. The fluorinated precursor compound may be provided by fluorinating a chlorinated precursor. The fluorinated precursor compound may be a fluorinated alkane. The hydroolefines are suitable as blowing agents, heat transfer fluids, or drying agents or degreasing solvents. | 09-08-2011 |
20110206598 | Preparation of hydrogen fluoride from fluorspar or calcium fluoride containing waste material - A process for the preparation of HF and anhydrite from reaction of calcium fluoride in the form of fines and sulfuric acid. The content of sulfuric acid is kept in a range where no agglomeration occurs. In such process, dust originating from natural fluorspar can be reacted, as well as synthetic calcium fluoride, e.g., from calcium fluoride and optionally calcium carbonate containing solids from treating a waste gas or waste water with basic calcium compounds to remove contained HF. | 08-25-2011 |
20110177693 | Reversible Water-Free Process for the Separation of Acid-Containing Gas Mixtures - Gas mixtures which comprise acids like HF, HCl or HBr and other constituents, especially gas mixtures which comprise or consist of carboxylic acid fluorides, C(O)F | 07-21-2011 |
20110162366 | Working Fluid For An ORC Process, ORC Process and ORC Apparatus - Use of working fluids for energy conversion in a thermal Organic Rankine Cycle (ORC) process for combined generation of electrical and heat energy. The heat source used in the ORC process is in particular thermal water. The working fluids used in the ORC process are partially or perfluorinated hydrocarbons and/or partially or perfluorinated polyethers and/or partially or perfluorinated ketones. In some embodiments, the working fluid used is a combination of 1,1,1,3,3-pentafluorobutane and a fluorinated polyether having a molecular weight of 340 and a boiling point of 57° C. at 101.3 kPa, or a combination of 1,1,1,3,3-pentafluorobutane and at least one partially or perfluorinated ketone. | 07-07-2011 |
20110160111 | Method for Removal of Contaminants - Fluorosubstituted organic carbonates, especially monofluoroethylene, difluoroethylene, trifluoroethylene, and tetrafluorofluoroethylene carbonates can be applied as water-removing agent or to remove other liquid or solid contaminants, for example, grease and dust. Preferably, transport tanks or storage tanks are treated which are used to store the respective fluorinated carbonates for use as additive of lithium ion batteries. | 06-30-2011 |
20110136345 | Process for the Manufacture of Etched Items - C4 compounds selected from the group of trifluorobutadienes and tetrafluorobutenes can be used as etching gases, especially for anisotropic etching in the production of etched items, for example, of semiconductors, e.g. semiconductor memories or semiconductor logic circuits, flat panels, or solar cells. Preferred compounds are 1,1,3-trifluoro-1,3-butadiene, (E)-1,1,1,3-tetrafluoro-2-butene, 2,4,4,4-tetrafluoro- | 06-09-2011 |
20110110844 | Method for preparing manganese tetrafluoride - Manganese tetrafluoride is prepared by a reaction between manganese difluoride or manganese trifluoride particles and elemental fluorine. During the reaction, surfaces of the particles are rendered fresh, e.g. by mechanical impact on the particles. Thereby, also agglomeration, sintering or vitrification of the particles is prevented. The impact is not so intensive that the particles would be crushed. | 05-12-2011 |
20110097161 | Fluidizable potassium fluorozincate - Fluidizable potassium fluorozincate which is very suitable for dry fluxing applications can be prepared from a diluted potassium base selected from the group consisting of KOH, KHCO | 04-28-2011 |
20100314574 | Refrigerant composition - A composition which comprises or consists of more than 75 to less than 80 wt. % of pentafluoroethane (HFC-125); more than 17 to less than 22.7 wt. % of 1,1,1,2-tetrafluoroethane (HFC-134a); and more than 2.3 to less than 3.0 wt. % of n-butane (R600). | 12-16-2010 |
20100288330 | Process for the manufacture of solar cells - Solar cells are manufactured from P-type doped monocrystalline or polycrystalline silicon ingots by sawing wafers and applying an N-type doping. The wafers can be improved by etching them, especially in a plasma assisted process, with fluorine, carbonyl fluoride, SF | 11-18-2010 |
20100267241 | Process for the production of microelectromechanical systems - Elemental fluorine and carbonyl fluoride are suitable etchants for producing microelectromechanical devices (“MEMS”). They are preferably applied as mixtures with nitrogen and argon. If applied in Bosch-type process, C | 10-21-2010 |
20100239882 | Method for brazing of titanium and aluminium parts and parts obtainable thereby - Aluminium and titanium parts can be joined to each other by brazing in the presence of an alkali metal fluoroaluminate in a protective gas atmosphere which comprises argon. According to the process, the assemblies of aluminium and titanium, joint by brazing, can be used for example in or as chemical apparatus, as parts for cars, boats, space transportation systems, or airplanes, or for manufacturing heat exchangers. | 09-23-2010 |
20100191024 | Preparation of halogen and hydrogen containing alkenes over metal fluoride catalysts - Halogenated alkenes, especially fluorinated alkenes can be prepared from halogenated and fluorinated alkanes, respectively, by dehydrohalogenation or dehydrofluorination in the presence of a high-surface metal fluoride or oxifluoride. Preferably, trifluoroethylene, pentafluoropropene, tetrafluorobutenes or trifluorobutadiene are prepared. Aluminium fluoride is highly suitable. The metal fluoride or oxifluoride can be applied supported on a carrier. | 07-29-2010 |
20100181186 | Process for obtaining a purified hydrofluoroalkane - The invention consequently relates, in one aspect, to a process for obtaining a hydrofluoroalkane comprising at least two carbon atoms, which is purified of unsaturated organic impurities, according to which the hydrofluoroalkane containing organic impurities including (chloro)fluoro olefins is subjected to at least one purification treatment with bromine or BrCl, preferably in the presence of, an initiator. The process is suitable, for example, to purify 1,1,1,2-tetrafluoroethane. A further aspect concerns the application of LEDs or OLEDs to support chemical reactions of the gas-gas, liquid-liquid or gas-liquid type, and a respective reactor. | 07-22-2010 |
20100143236 | Preparation of hydrogen fluoride from calcium fluoride and sulfuric acid - Calcium fluoride fines or residues comprising calcium fluoride fines, e.g. residues from treating waste water or waste gas, e.g. originating from HF or fertilizer production, with calcium oxide or calcium carbonate to remove HF or fluorides can be converted to HF and calcium sulfate by reaction with sulfuric acid in the form of a suspension. Unreacted calcium oxide or calcium carbonate generates sufficient heat to the endothermic reaction between calcium fluoride and sulfuric acid so that no external heat is needed. | 06-10-2010 |
20100029531 | Nonflammable compositions comprising fluorinated compounds and use of these compositions - The invention relates to non-flammable compositions comprising fluorinated compounds selected from the group consisting of hydrofluoroalkanes, hydrofluoroalkenes, partially or perfluorinated aromatic compounds, hydrofluoroethers or fluoroketones, 1,2-dichloroethylene, especially trans-1,2-dichloroethylene, and a stabilizer. These non-flammable compositions which preferably contain 1,1,1,3,3-pentafluorobutane, can be used especially as solvents for cleaning and defluxing electronic components and for degreasing metals. The compositions further may comprise a propellant, e.g. 1,1,1,2-tetrafluoroethane. These compositions are especially suitable as flushing agent. | 02-04-2010 |
20100025619 | Method for heating and cooling using fluoroether compounds, compositions suitable therefore and their use - Compounds of general formula (I) C | 02-04-2010 |
20100015675 | Process for the production of fluorine containing alpha-hydroxy carboxylic acids - A process for the production of a fluorine containing α-hydroxy carboxylic acid by hydrolyzing a fluorine containing α-hydroxy nitrite in the presence of a nitrilase. | 01-21-2010 |
20090242840 | Reversible Water-Free Process for the Separation of Acid-Containing Gas Mixtures - Gas mixtures which comprise acids like HF, HCl and/or HBr and other constituents, especially gas mixtures which comprise or consist of carboxylic acid fluorides, C(O)F | 10-01-2009 |
20090241432 | ABRASIVE MEANS, USE OF ALKALI METAL FLUOROALUMINATES OR ALKALINE EARTH FLUOROALUMINATES FOR STABILIZING POLYMERS AGAINST CHANGE IN COLOR BY THE ACTION OF HEAT, AND MIXTURE CONSISTING OF POTASSIUM TETRAFLUOROALUMINATE AND DIPOTASSIUM PENTAFLUOROALUMINATE AND OF OTHER ABRASIVE-ACTIVE FILLERS - The invention relates to an abrasive means with abrasive-active fillers. The abrasive means is comprised, in general, of a support, abrasive grit and of a binder system. In order to improve the abrasive action and the serviceable life of the abrasive means, the binding agent system contains synthetic alkali metal fluoroaluminates, and/or alkaline earth metal fluoroaluminates, in particular, alkali metal tetrafluoroaluminate, preferably potassium tetrafluoroaluminate, together with at least one additional abrasive-active filler. | 10-01-2009 |
20090211449 | Method for separating gas - Gas mixtures containing HF, HCl or HBr and other constituents, in particular gas mixtures containing carboxylic acid fluorides, C(O)F | 08-27-2009 |
20090197167 | Fluorinated Additives For Lithium Ion Batteries - The usability of certain fluorinated organic compounds which have aromatic radicals, C═C double bonds, C═O groups or organosilicon groups as an additive for Li ion batteries is disclosed. | 08-06-2009 |
20090068844 | Etching Process - Mixtures of fluorine and inert gases like nitrogen and/or argon can be used for etching of semiconductors, solar panels and flat panels (TFTs and LCDs), and for cleaning of semiconductor surfaces and plasma chambers. Preferably, fluorine is comprised in an amount of 15 to 25 vol.-% in binary mixtures. The gas mixtures can be used as substitute or drop-in for respective mixtures comprising NF | 03-12-2009 |
20090056333 | Working Fluid For An Orc Process, Orc Process and Orc Apparatus - The invention relates to working fluids for energy conversion in a thermal ORC process for combined generation of electrical and heat energy. The heat source used is in particular thermal water. The working fluids used are partially or perfluorinated hydrocarbons and/or partially or perfluorinated polyethers and/or partially or perfluorinated ketones. In one embodiment of the invention, the working fluid used is a combination of 1,1,1,3,3-pentafluorobutane and a fluorinated polyether having a molecular weight of 340 and a boiling point of 57° C. at 101.3 kPa. | 03-05-2009 |
20080197317 | Working Fluid For Heat Transfer - Working fluid for the heat transfer, in particular for the heat transfer by heat pipes, containing or consisting of partially fluorinated and/or perfluorinated hydrocarbons and/or perfluorinated polyethers. Preferably, a mixture of pentafluorobutane and perfluorinated polyether is used as a working fluid. | 08-21-2008 |