HIGH PURITY E-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND METHODS OF MAKING THE SAME

The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used. 114-. (canceled)15. A method for producing 1233zd(E) from 1 ,1 ,1 ,3 ,3-pentachloropropane (240fa) and/or 1 ,1 ,3 ,3-tetrachloropropene and/or 1 ,1 ,1 ,3-tetrachloropropene mixture comprising the steps of:(a) feeding at least one reactor feed stream containing 1,1,1,3,3-pentachloropropane (240fa) and/or 1,1,3,3-tetrachloropropene and/or 1,1,1,3-tetrachloropropene mixture to a least one fluorination reactor and(b) ensuring that said at least one feed stream contains not more than about 0.2% by weight of 1,1,1,2,3-pentachloropropane (240db) and/or 1,1,2,3-tetrachloropropene, and/or 2,3,3,3-tetrachloropropene mixture.16. The method of claim 15 , wherein the 1 claim 15 ,1 claim 15 ,1 claim 15 ,3 claim 15 ,3-pentachloropropane (240fa) and/or 1 claim 15 ,1 claim 15 ,3 claim 15 ,3-tetrachloropropene and/or 1 claim 15 ,1 claim 15 ,1 claim 15 ,3-tetrachloropropene mixture feed stream contains at least about 99.8% by weight of 1 claim 15 ,1 claim 15 ,1 claim 15 ,3 claim 15 ,3-pentachloropropane (240fa) and/or 1 claim 15 ,1 claim 15 ,3 claim 15 ,3-tetrachloropropene and/or 1 claim 15 ,1 claim 15 ,1 claim 15 ,3-tetrachloropropene mixture.17. The method of claim 15 , wherein the 1 claim 15 ,1 claim 15 ,1 ...

Novel Fire Retardant Compounds

Compounds with fire extinguishing properties having the formula: 2. The fire extinguishing unit of wherein two or more substituents selected from R claim 1 , Rand Rare halogen.3. The fire extinguishing unit of wherein R claim 1 , Rand Rare each halogen.4. The fire extinguishing unit of wherein R claim 1 , Rand Rare each independently selected from hydrogen claim 1 , Br claim 1 , Cl and I.5. The fire extinguishing unit of wherein Ris —CRRR.6. The fire extinguishing unit of wherein R claim 5 , R claim 5 , and Rare each halogen.7. The fire extinguishing unit of wherein R claim 5 , R claim 5 , and Rare each F.8. The fire extinguishing unit of wherein the fire extinguishing compound is selected from 2-bromo-1 claim 5 ,1 claim 5 ,3 claim 5 ,3 claim 5 ,3-pentafluoropropene; 2-iodo-1 claim 5 ,1 claim 5 ,3 claim 5 ,3 claim 5 ,3-pentafluoropropene; 2-iodo-3 claim 5 ,3 claim 5 ,3-trifluoropropene and combinations thereof.9. The fire extinguishing unit of wherein Ris —CRRCRRR.10. The fire extinguishing unit of wherein R claim 9 , R claim 9 , and Rare each halogen.11. The fire extinguishing unit of wherein R claim 10 , R claim 10 , and Rare each F.12. The fire extinguishing unit of wherein Rand Rare each halogen.13. The fire extinguishing unit of wherein Rand Rare each F.14. The fire extinguishing unit of wherein the fire extinguishing compound is selected from 2-iodo perfluoro-1-butene; 2 claim 9 ,3-dibromo-4 claim 9 ,4 claim 9 ,4-trifluoro-1-butene; 2-iodoperfluoro-1-butene; 2-bromoperfluoro-1-butene; 3-iodo-3 claim 9 ,4 claim 9 ,4 claim 9 ,4-tetrafluoro-1-butene; 1-iodo-4 claim 9 ,4 claim 9 ,4-trifluoro-1-butene; 1-bromo-4 claim 9 ,4 claim 9 ,4-trifluoro-1-butene; 2-chloro-3 claim 9 ,3 claim 9 ,4 claim 9 ,4 claim 9 ,4-pentafluoro-1-butene; isomers thereof and combinations thereof.16. A method according to wherein two or more substituents are selected from R claim 15 , Rand Rare halogen.17. A method according to wherein R claim 15 , Rand Rare each halogen.18. A method ...

METHOD FOR PRODUCING PERFLUOROALKADIENE COMPOUNDS

According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF═CF—(CF)—CF═CF(1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): XCF—CFX—(CF)—CFX(2), wherein n is the same as above, Xis the same or different and is a halogen atom other than fluorine, and Xis a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield. 1. A method for producing a perfluoroalkadiene compound represented by general formula (1):{'br': None, 'sub': 2', '2', 'n-4', '2, 'CF═CF—(CF)—CF═CF\u2003\u2003(1)'} {'br': None, 'sup': 1', '2', '1, 'sub': 2', '2', 'n-4', '2', '2, 'XCF—CFX—(CF)—CF—CFX\u2003\u2003(2)'}, 'the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2), 'herein n is an integer of 4 or more,'}{'sup': 1', '2, 'wherein n is the same as above, Xis the same or different and is a halogen atom other than fluorine, and Xis a halogen atom.'}2. The production method according to claim 1 , wherein the addition rate of the nitrogen-containing compound is 0.001 to 60 mol/h per mol of the compound represented by general formula (2).3. The production method according to claim 1 , wherein the nitrogen-containing compound is N claim 1 ,N-dimethylformamide.4. The production method according to claim 1 , wherein the solution is a solution of an organic solvent.5. The production method according to claim 4 , wherein the boiling point of the organic solvent is lower than the boiling point of the nitrogen-containing compound.6. The production method according to claim 1 , wherein in the reaction step claim 1 , the solution of the compound represented by general formula (2) further comprises zinc or a zinc alloy.7. The production method according to claim 1 , wherein the nitrogen-containing compound is added after the solution ...

Novel Fire Retardant Compounds

Compounds with fire extinguishing properties having the formula: 2. The compound of wherein two or more substituents selected from R claim 1 , Rand Rare halogen.3. The compound of wherein R claim 1 , Rand Rare each halogen.4. The compound of wherein R claim 1 , Rand Rare each independently selected from hydrogen claim 1 , Br claim 1 , Cl and I.5. The compound of wherein Ris —CRRR.6. The compound of wherein Ris —CRRCRRR.7. A method for extinguishing a fire claim 1 , the method comprising directing a compound of towards a fire.9. The fire extinguishing unit of wherein two or more substituents are selected from R claim 8 , Rand Rare halogen.11. A compound according to wherein Ris iodo and Ris hydrogen.12. A compound according to wherein Rand Rare both fluoro.13. A compound according to wherein Rand Rare both hydrogen.14. A compound which is 2 claim 10 ,3-dibromo-4 claim 10 ,4 claim 10 ,4-trifluoro-1-butene; 2-iodoperfluoro-1-butene; 2-bromoperfluoro-1-butene; 3-iodo-3 claim 10 ,4 claim 10 ,4 claim 10 ,4-tetrafluoro-1-butene; 1-iodo-4 claim 10 ,4 claim 10 ,4-trifluoro-1-butene; 1-bromo-4 claim 10 ,4 claim 10 ,4-trifluoro-1-butene; or 2-chloro-3 claim 10 ,3 claim 10 ,4 claim 10 ,4 claim 10 ,4-pentafluoro-1-butene. This application is a divisional of U.S. application Ser. No. 16/126,746, filed Sep. 10, 2018, which is a divisional of U.S. application Ser. No. 14/753,760, filed Jun. 29, 2015, the disclosure of each of which is incorporated herein by reference in its entirety.This invention concerns novel halogen containing compounds and fire extinguishing units including one or more fire extinguishing compounds.Halon 1301 is the predominant fire extinguishing agent used on aircraft. Halon 1301 is currently a banned substance with few exceptions. One such exception is its use as an aircraft fire extinguishing agent. However, even with this exception, new fire extinguishing compounds are needed because Halon 1301, as a banned substance, is no longer manufactured and ...

PROCESS FOR THE PRODUCTION OF FLUORINATED CYCLOBUTANE

The production of 1, 1, 2-trifluoro-2-(trifluoromethyl)cyclobutane (TFMCB). More specifically, the present invention relates to a process for making 1, 1, 2-trifluoro-2-(trifluoromethyl)cyclobutane via a continuous catalytic reaction from commercially available raw materials ethylene and hexafluoropropene. 1. A process for producing 1 ,1 ,2-trifluoro-2-(trifluoromethyl)cyclobutane (TFMCB) , comprising the following steps:introducing hexafluoropropene and ethylene into a reaction vessel; andreacting the hexafluoropropene and ethylene in the reaction vessel in the presence of at least one oligomerization/polymerization (OP) inhibitor and at least one metal catalyst.2. The process of claim 1 , wherein the process is a continuous process and further comprises the additional steps claim 1 , following the reacting step claim 1 , of:removing TFMCB product from the reaction vessel; andrepeating said introducing, reacting and removing steps (a) through (c).3. The process of claim 1 , further comprising the additional steps claim 1 , following the reacting step claim 1 , of:removing at least one of unreacted hexafluoropropene and unreacted ethylene from the reaction vessel; andrecycling the at least one of unreacted hexafluoropropene and unreacted ethylene back into the reaction vessel.4. The process of claim 1 , further comprising the additional steps claim 1 , following the reacting step claim 1 , of:removing unreacted hexafluoropropene and unreacted ethylene from the reaction vessel; andrecycling the unreacted hexafluoropropene and unreacted ethylene back into the reaction vessel.5. The process of claim 1 , wherein the metal catalyst is selected from the group consisting of nickel and nickel-based alloys.6. The process of claim 1 , wherein the oligomerization/polymerization (OP) inhibitor comprises at least one gas phase compound selected from the group consisting of nitric oxide (NO) claim 1 , nitrogen dioxide (NO) claim 1 , carbon monoxide (CO) and sulphur dioxide (SO).7 ...

METHOD FOR PRODUCTION OF A HALOGENATED ALKANE USING AN ABSORBER-REACTOR COMBINATION

The present invention provides improved processes for preparing halogenated alkanes. The processes comprise contacting at least one alkene, a halogenated alkene, or combinations thereof with a halogenated methane with at least one chlorine atom to form a liquid phase. This liquid phase is then contacted with at least one catalytic species which initiates the reaction with at least one alkene, a halogenated alkene, or combinations thereof with a halogenated methane with at least one chlorine atoms. 1. A process for preparing a halogenated alkane , the process comprising: at least one alkene, halogenated alkene, or combinations thereof with a liquid stream comprising a halogenated methane comprising at least one chlorine atom and optionally, a recycle stream,', 'the at least one alkene, halogenated alkene or combinations thereof being introduced to the absorber in a gas phase and wherein at least a portion of the at least one alkene or halogenated alkene fed to the absorber is a fresh material feed to the process;', 'to form a liquid phase,'}], 'a) contacting, in an absorber,'}b) transferring at least a portion of the liquid phase from the absorber into a reaction vessel to form a reaction mixture wherein the reaction mixture comprises at least one solid metallic catalyst; at least one alkene, halogenated alkene, or combinations thereof; at least one ligand, an optional recycle stream, or combinations thereof; a halogenated methane comprising at least one chlorine atom; andc) forming a product mixture comprising the halogenated alkane, light by-products, and heavy by-products.2. The process of claim 1 , wherein the at least one metallic solid catalyst is in the form of at least one fixed bed of a solid packing claim 1 , a powder claim 1 , or combinations thereof.3. The process of claim 2 , wherein the fixed bed packing of a solid packing is a structured packing claim 2 , unstructured packing claim 2 , or combinations thereof.4. The process of claim 1 , wherein at ...

FLUOROETHYLENE COMPOSITION

Provided is a composition that contains a fluoroethylene having one or more fluorine atoms, the composition having excellent stability of the fluoroethylene. The fluoroethylene composition of the present disclosure contains a fluoroethylene having one or more fluorine atoms, water, and oxygen, the composition having a water content of 100 mass ppm or less based on the mass of the fluoroethylene, and an oxygen content of 0.35 mol % or less based on the fluoroethylene. The fluoroethylene composition has excellent stability of fluoroethylene.

PRODUCTION OF SHORT CHAIN PERFLUOROALKYL IODIDES FROM HIGHER ORDER TELOMERS

An improved process for producing perfluoroalkyl iodides of formula (I) 2. The process of wherein the selectivity for species (I) is greater than 45 mol %.3. The process of wherein the molar ratio of formula (III) to formula (II) is less than 0.7.4. The process of performed in the absence of a TFE trap species and the molar ratio of formula (III) to formula (II) is zero.5. The process of wherein the temperature is from 470° C. to 495° C.6. The process of wherein the residence time is held at from 0.4 to 9 seconds.7. The process of wherein the selectivity for species (I) is greater than 45 mol % without use of iodine as a reactant.8. The process of wherein the selectivity for perfluoroalkanes is less than 20 mol %. Long chain perfluoroalkyl iodides are prepared by the conventional telomerization of tetrafluoroethylene (TFE) with pentafluoroethyl iodide, which can be thought of, formally, as the insertion of TFE into the C—I bond. This telomerization yields perfluoroalkyl iodides with a chain length distribution of varying TFE insertions. Most current processes produce chain lengths from 8 carbons to 20 carbons in length. Perfluoroalkyl iodides have many uses as a key starting material in the preparation of surface modifying products, such as repellants, stain and soil resist agents, as well as surfactants. The current trend in these end use markets is to exclude the 8-carbon and longer chain lengths, and focus on shorter chain perfluoroalkyl iodides as starting materials. This work specifically targets the production of straight chain perfluorobutyl iodide and perfluorohexyl iodide (C4-I and C6-I perfluoroalkyl iodides, respectively) from higher order (longer chain) perfluoroalkyl iodides, such as perfluoro-octyl iodide (C8-I) or mixtures of C8-I and higher homologue perfluoroalkyl iodides.Bertocchio et al., in U.S. Pat. No. 5,268,516, disclose a process for preparation of shorter chain perfluoroalkyl iodides in a thermal telomerization of TFE with pentafluoroethyl ...

Process for Making 2,3,3,3-Tetrafluoropropene and/or Vinylidine Fluoride

Disclosed is a process for the formation of a mixture of the compounds 2,3,3,3-tetrafluoropropene (1234yf) and vinylidine fluoride, comprising pyrolyzing 1,1,2-trifluoro-2-trifluoro-methyl-cyclobutane under conditions effective to produce a reaction product comprising 1234yf and vinylidine fluoride in a 1234yf:vinylidine fluoride molar ratio of from about 0.5 to about 1.2. 1. A process for the formation of a mixture of the compounds 2 ,3 ,3 ,3-tetrafluoropropene (1234yf) and vinylidine fluoride , comprising pyrolyzing 1 ,1 ,2-trifluoro-2-trifluoro-methyl-cyclobutane under conditions effective to produce a reaction product comprising 1234yf and vinylidine fluoride in a 1234yf: vinylidine fluoride molar ratio of from about 0.5 to about 1.2.2. The process of claim 1 , wherein the pyrolysis is conducted at a temperature in the range of from about 750° C. to about 800° C. and for a contact time of from about 2 seconds to about 25 seconds and at a pressure of about 1 atm.3. The process of claim 1 , wherein the pyrolysis is conducted in a stainless steel tube reactor and wherein the reaction is quenched by cooling as it comes out of the reactor.4. The process of claim 1 , wherein the pyrolysis provides a yield in the range of about 80% to about 90%.5. The process of claim 1 , wherein the pyrolysis provides a conversion rate of about 70%.6. The process of claim 1 , wherein the pyrolysis is conducted in a batch mode.7. The process of claim 1 , wherein the pyrolysis is conducted in a continuous mode.8. The process of claim 1 , further comprising the step of separating the mixture of the compounds 1234yf and vinylidine fluoride.9. The process of claim 1 , further comprising the step of forming the compound 1 claim 1 ,1 claim 1 ,2-trifluoro-2-trifluoromethyl-cyclobutane (TFMCB) by the thermal dimerization a mixture of hexafluoro-propene (HFP) and a stoichiometric excess of ethylene claim 1 , in the presence of a polymerization or oligomerization inhibitor.10. The process of ...

METHOD FOR MANUFACTURING METHYL FLUORIDE

An object of the present invention is to provide a method for producing methane fluoride that is useful, for example, as a dry etching gas, the method being more suitable for industrial production. To achieve this object, the present invention provides a method including reacting (A) dimethyl sulfate and (B) at least one fluorocompound in a liquid phase, the fluorocompound (B) being at least one compound selected from the group consisting of hydrogen fluoride and hydrofluoric acid salts, or a metal fluoride, wherein when the fluoride compound (B) includes hydrogen fluoride or a hydrofluoric acid salt, the reaction is carried out without a solvent or using a polar solvent as a solvent, and when the fluoride compound (B) is a metal fluoride, the reaction is carried out using water as a solvent. 1. A method for producing methane fluoride (CHF) comprising reacting(A) dimethyl sulfate and(B) at least one fluorocompound in a liquid phase, the fluorocompound being at least one member selected from the group consisting of hydrogen fluoride and hydrofluoric acid salts, or a metal fluoride,wherein when the fluorocompound (B) includes hydrogen fluoride or a hydrofluoric acid salt, the reaction is carried out without a solvent or using a polar solvent as a solvent, and when the fluorocompound (B) is a metal fluoride, the reaction is carried out using water as a solvent.2. The method according to claim 1 , wherein the metal fluoride is at least one metal fluoride represented by formula (1):{'br': None, 'MF\u2003\u2003(1)'}wherein M represents an alkali metal or an alkaline earth metal.4. The method according to claim 3 , wherein the hydrofluoric acid salt represented by formula (2) is ammonium fluoride (NHF) claim 3 , ammonium hydrogen difluoride (NHFHF) claim 3 , methylamine fluoride (CHNHF) claim 3 , ethylamine fluoride (CHNHF) claim 3 , butylamine fluoride (CHNHF) claim 3 , dimethylamine fluoride ((CH)NHF) claim 3 , diethylamine fluoride ((CH)NHF) claim 3 , triethylamine ...

METHOD FOR PRODUCING FLUORINATED HYDROCARBON

The present invention is a method for producing a fluorohydrocarbon represented by a structural formula (3) comprising bringing a secondary or tertiary ether compound represented by a structural formula (1) into contact with an acid fluoride represented by a structural formula (2) in a hydrocarbon-based solvent in the presence of a boron trifluoride complex. (In structural formulae (1) to (3), each of Rand Rrepresents an alkyl group having 1 to 3 carbon atoms, Rrepresents a hydrogen atom, a methyl group, or an ethyl group, and each of Rand Rrepresents a methyl group or an ethyl group, provided that Rand Rare optionally bonded to each other to form a ring structure.) 2. The method according to claim 1 , wherein the boron trifluoride complex is a boron trifluoride ether complex.3. The method according to claim 1 , wherein the secondary or tertiary ether compound represented by the structural formula (1) is sec-butyl methyl ether or t-butyl methyl ether.4. The method according to claim 1 , wherein the acid fluoride represented by the structural formula (2) is acetyl fluoride.5. The method according to claim 1 , wherein the fluorohydrocarbon represented by the structural formula (3) is 2-fluorobutane. The present invention relates to a method for producing a fluorohydrocarbon that is useful as a plasma reaction gas (e.g., a plasma reaction gas for etching or chemical vapor deposition (CVD)) used in the field of production of a semiconductor device, a fluorine-containing drug intermediate, and a hydro fluorocarbon-based solvent. A high-purity fluorohydrocarbon thus produced is particularly suitable as a plasma etching gas, a CVD gas, and the like that are used in the field of production of a semiconductor device that utilizes a plasma reaction.In recent years, semiconductor production technology that achieves further miniaturization has been developed, and a line width of 20 nm or 10 nm has been used for a leading-edge process. The degree of difficulty in processing has ...

AZEOTROPIC COMPOSITIONS OF 1,1,3,3-TETRACHLOROPROP-1-ENE AND HYDROGEN FLUORIDE

Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of HFC-245fa and HCFO-1233zd. 1. An azeotropic or azeotrope-like mixture consisting essentially of 1 ,1 ,3 ,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride.2. The composition of claim 1 , which consists essentially of from about 0.2 to about 99 weight percent hydrogen fluoride and from about 99.8 to about 1 weight percent 1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetrachloroprop-1-ene (HCCO-1230za) claim 1 , which composition has a boiling point of about from 0° C. claim 1 , at pressure of about 13.3 psia.3. The composition of claim 1 , which consists essentially of from about 99 weight percent to about 1 weight percent hydrogen fluoride.4. The composition of claim 1 , which consists essentially of from about 90 weight percent to about 20 weight percent hydrogen fluoride.5. The composition of claim 1 , which consists essentially of from about 65 weight percent to about 40 weight percent hydrogen fluoride.6. The composition of claim 1 , which consists essentially of from about 1 weight percent to about 99 weight percent 1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetrachloroprop-1-ene (HCO-1230za).7. The composition of claim 1 , which consists essentially of from about 10 weight percent to about 80 weight percent 1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetrachloroprop-1-ene (HCO-1230za).8. The composition of claim 1 , which consists essentially of from about 35 weight percent to about 60 weight percent 1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetrachloroprop-1-ene (HCO-1230za).9. The composition of claim 1 , which consists essentially of about 62±2 weight percent hydrogen fluoride and about 38±2 weight percent 1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetrachloro-prop-1-ene (HCO-1230za) claim 1 , which composition has a boiling point of about 0° C. claim 1 , at pressure of about 13.3 psia.10. An azeotropic or ...

7-METHYL-3-METHYLENE-7-OCTENYL HALIDE, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING 7-METHYL-3-METHYLENE-7-OCTENYL PROPIONATE

Provided is a simple, selective and efficient method for producing 7-methyl-3-methylene-7-octenyl propionate and the like. More specifically, provided is, for example, a method for producing 7-methyl-3-methylene-7-octenyl propionate, comprising the steps of: subjecting a nucleophile represented by Formula (1) and an electrophile represented by Formula (2) to a coupling reaction to obtain a 7-methyl-3-methylene-7-octenyl halide represented by Formula (3), and subjecting the 7-methyl-3-methylene-7-octenyl halide (3) to propionyloxylation to obtain the 7-methyl-3-methylene-7-octenyl propionate represented by Formula (4). This application claims priority from Japanese Patent Application No. 2014-262612, filed Dec. 25, 2014, the disclosure of which is incorporated by reference herein in its entirety.The present invention relates to a method for producing 7-methyl-3-methylene-7-octenyl propionate, which is, for example, a major component of the sex pheromone of Quadraspidiotus perniciosus (Comstock) (generic name: San Jose Scale).The sex pheromones of insects are biologically active substances that are commonly secreted by female individuals and have the function of attracting male individuals. A small amount of the sex pheromone shows strong attractive activities. The sex pheromone has been widely used as means for forecasting insect emergence or for ascertaining regional spread (invasion into a specific area) and as means for controlling an insect pest. As the means for controlling insect pests, control methods called mass trapping, lure and kill (another name: attract and kill), lure and infect (another name: attract and infect), and mating disruption are widely used in practice. To utilize the sex pheromone, economical production of a required amount of the pheromone product is demanded for basic research and also for application.Quadraspidiotus perniciosus (generic name: San Jose Scale, hereinafter abbreviated as “SJS”) is widely distributed in the world, damages ...

METHOD FOR PRODUCING PERFLUOROALKADIENE COMPOUNDS

According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF═CF—(CF)—CF═CF(1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): XCF—CFX—(CF)—CF—CFX(2), wherein n is the same as above, Xis the same or different and is a halogen atom other than fluorine, and Xis a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield. 114-. (canceled)15. A perfluoroalkadiene composition comprising: {'br': None, 'sub': 2', '2', 'n-4', '2, 'CF═CF—(CF)—CF═CF\u2003\u2003(1)'}, 'a perfluoroalkadiene compound represented by general formula (1)wherein n is an integer of 4 or more, anda fluorine-containing alkene compound having 4 or more carbon atoms,wherein the amount of the fluorine-containing alkene compound is 0.1 to 3 mol % when the total amount of the perfluoroalkadiene composition is 100 mol %.16. The perfluoroalkadiene composition according to claim 15 , wherein the perfluoroalkadiene compound is hexafluorobutadiene.17. The perfluoroalkadiene composition according to claim 15 , wherein the fluorine-containing alkene compound is at least one member selected from the group consisting of octafluoro-1-butene claim 15 , octafluoro-2-butene claim 15 , heptafluoro-1-butene claim 15 , and heptafluoro-2-butene.18. The perfluoroalkadiene composition according to claim 16 , wherein the fluorine-containing alkene compound is at least one member selected from the group consisting of octafluoro-1-butene claim 16 , octafluoro-2-butene claim 16 , heptafluoro-1-butene claim 16 , and heptafluoro-2-butene.19. An etching gas claim 15 , a refrigerant claim 15 , a heat transfer medium claim 15 , a foaming agent claim 15 , or a resin monomer claim 15 , each comprising the perfluoroalkadiene composition according to .20. An etching gas claim 16 , a refrigerant claim 16 , a heat transfer medium claim 16 , a ...

PROCESSES FOR THE DEHYDROCHLORINATION OF A CHLORINATED ALKANE

The present invention provides a process for the dehydrochlorination of a chlorinated alkane to produce a chlorinated alkene. In particular, the processes comprise contacting a chlorinated alkane, a base, and a phase transfer catalyst. 1. A process for producing a chlorinated alkene , wherein the process comprises contacting(a) a liquid chlorinated alkane stream comprising a soluble iron-tributylphosphate complex;(b) an aqueous phase comprising an inorganic base;(c) a phase transfer catalyst;wherein the chlorinated alkene product has one less chlorine atom than the chlorinated alkane; andwherein the chlorinated alkane stream contains high-boiling point chlorocarbons, catalysts, or combinations thereof; and is not further purified to remove these high boiling point components; andwherein the aqueous phase comprising an inorganic base is produced from the chloroalkali process.2. The process of claim 1 , wherein the chlorinated alkane stream comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,3-tetrachloropropane.3. The process of claim 1 , wherein the chlorinated alkene comprises 1 claim 1 ,1 claim 1 ,3-trichloropropene claim 1 , 3 claim 1 ,3 claim 1 ,3-trichloropropene claim 1 , 1 claim 1 ,2 claim 1 ,3-trichloropropene claim 1 , or mixtures thereof.4. (canceled)5. (canceled)6. The process of claim 1 , wherein the metal portion of the soluble iron-tributylphosphate complex precipitates as a metal hydroxide; which is removed from the aqueous phase by filtration claim 1 , settling claim 1 , or centrifugation.7. (canceled)8. The process of claim 1 , wherein the phase transfer catalyst comprises tetraalkylammonium compound claim 1 , a tetraalkylphosphonium compound claim 1 , a pyridinium salt claim 1 , or combinations thereof.9. The process of claim 8 , wherein the phase transfer catalyst is selected from a group consisting of trioctylmethyl ammonium chloride (Aliquat 336) claim 8 , dioctyldimethylamonium chloride claim 8 , Arquad 2HT-75 claim 8 , benzyldimethyldecylammonium ...

PROCESS FOR THE PRODUCTION OF FLUORINATED CYCLOBUTANE

The production of 1,1,2-trifluoro-2-(trifluoromethyl)cyclobutane (TFMCB). More specifically, the present invention relates to a process for making 1,1,2-trifluoro-2-(trifluoromethyl)cyclobutane via a continuous catalytic reaction from commercially available raw materials ethylene and hexafluoropropene. 1. A continuous process for producing 1 ,1 ,2-trifluoro-2-(trifluoromethyl)cyclobutane (TFMCB) , comprising the following steps:(a) introducing hexafluoropropene and ethylene into a reaction vessel;(b) reacting the hexafluoropropene and ethylene in the reaction vessel in the presence of at least one metal catalyst;(c) removing TFMCB product from the reaction vessel; and(d) repeating said introducing, reacting and removing steps (a) through (c).2. The process of claim 1 , further comprising the additional steps of:removing at least one of unreacted hexafluoropropene and unreacted ethylene from the reaction vessel; andrecycling the at least one of unreacted hexafluoropropene and unreacted ethylene back into the reaction vessel.3. The process of claim 1 , further comprising the additional steps of:removing unreacted hexafluoropropene and unreacted ethylene from the reaction vessel; andrecycling the unreacted hexafluoropropene and unreacted ethylene back into the reaction vessel.4. The process of claim 1 , wherein the metal catalyst includes at least one metal catalyst selected from the group consisting of nickel and nickel-based alloys.5. The process of claim 1 , wherein said reacting step is conducted at a pressure between 600 psig and 1500 psig.6. The process of claim 5 , wherein said reacting step is conducted at a pressure between 800 psig and 1200 psig.7. The process of claim 1 , wherein said reacting step is conducted at a temperature between 300° C. and 500° C.8. The process of claim 7 , wherein said reacting step is conducted at a temperature between 300° C. and 400° C.9. The process of claim 1 , wherein during said reacting step claim 1 , the hexafluoropropene ...

PROCESS FOR THE CONVERSION OF ISOMERIC MIXTURE OF DICHLORODIPHENYL SULFONES TO CHLOROBENZENE

The invention relates to a process for the single step conversion of isomeric mixture of dichlorodipheriyi sulfones to chlorobenzene. The invention further relates a process of using dilute sulfuric acid and re-circulating the dilute sulfuric acid. 1. A single step process for the conversion of isomeric mixture of dichlorodiphenyl sulfones to chlorobenzene in steps comprising:a) Treating the isomeric mixture of dichlorodiphenyl sulfone with dilute sulfuric acid,b) Azeotropiclly distilling of the reaction product to obtain chlorobenzene,c) Neutralizing the chlorobenzene with aqueous alkali solution and distilling the same obtain significantly moisture free chlorobenzene,d) Reusing the residual acid of step (b) and re-circulating chlorobenzene in the process for production of 4,4′-dichlorodiphenyl sulfone.2. A process according to claim 1 , wherein sulfuric acid is 30 to 85%w/w3. A process according to any of the preceding claim claim 1 , wherein the molar ratio of isomeric mixture of dichlorodiphenyl sulfones to sulfuric acid is 1:0.25 to 1:7.4. A process according to any one of the preceding claim wherein the reaction temperature is 170 to 260° C. claim 1 , preferably 200 to 240° C.5. A process according to where the reaction is carried out at reduced pressure at <170° C. The invention relates to an economical and environmentally friendly process for the single step conversion of isomeric mixture of dichlorodiphenyl sulfones to chlorobenzene.Isomeric mixture of dichlorodiphenyl sulfone is a obtained as a by product in production of 4,4′-dichlorodiphenyl sulfone which is commercially produced by various known process such as:The isomeric mixture produced in these processes contain 4,4′-dichlorodiphenyl sulfone; 3,4′- and 2,4′-isomers of which 4,4′-dichlorodiphenyl sulfone is the commercially useful product. The residue after isolation of 4,4′-dichlorodiphenyl sulfone comprising of a mixture of 3,4′- and/or 2;4′-and/or 4,4′-dichlorodiphenyl sulfone is generally ...

PROCESSES FOR PRODUCING TRIFLUOROIODOMETHANE USING TRIFLUOROACETIC ACID

The present disclosure provides a process for producing trifluoroiodomethane by reacting trifluoroacetic acid, an iodine source, and a metal fluoride in the presence of a metal catalyst to produce trifluoroiodomethane. 1. A process for producing trifluoroiodomethane (CFI) , the process comprising:providing trifluoroacetic acid, an iodine source, a metal catalyst, a metal fluoride and a solvent; andreacting the trifluoroacetic acid, the iodine source, and the metal fluoride in the presence of the metal catalyst and the solvent to produce trifluoroiodomethane.2. The process of claim 1 , wherein the metal fluoride comprises at least one selected from the group of lithium fluoride claim 1 , potassium fluoride claim 1 , sodium fluoride claim 1 , rubidium fluoride claim 1 , calcium fluoride claim 1 , and magnesium fluoride.3. The process of claim 2 , wherein in the providing step claim 2 , the metal fluoride is in the form of a spray-dried powder.4. The process of claim 1 , wherein in the providing step claim 1 , a mole ratio of the trifluoroacetic acid to the metal fluoride is from about 0.1:1 to about 2.0:1.5. The process of claim 1 , wherein the iodine source comprises at least one selected from the group of iodine claim 1 , iodine monochloride claim 1 , iodine monofluoride claim 1 , and iodine monobromide.6. The process of claim 1 , wherein in the providing step claim 1 , a mole ratio of the trifluoroacetic acid to the iodine source is from about 0.1:1 to about 2:1.7. The process of claim 1 , wherein the metal catalyst comprises at least one selected from the group of copper (I) iodide claim 1 , ferrous chloride claim 1 , and zinc (II) iodide.8. The process of claim 1 , wherein in the providing step claim 1 , the catalyst is provided for the reaction at a mole percent of the trifluoroacetic acid of from about 0.5% to about 50%.9. The process of claim 1 , wherein the solvent is at least one selected from the group of an ionic liquid and a polar aprotic solvent.10. The ...

Liquid crystal medium for electro-optical applications contains compounds with difluoromethylene linking groups, e.g. perfluoroalkane derivatives, and compounds with linked benzene and cyclohexane rings

A liquid crystal medium containing compounds (I) with optionally fluorinated and/or otherwise-substituted groups linked by a difluoro-methylene group and compounds (II) with an optionally fluorinated and/or otherwise-substituted phenyl group linked to a cyclohexane, bicyclohexyl or tercyclohexyl system. A liquid crystal (LC) medium based on a mixture of polar compounds with positive dielectric anisotropy contains compound(s) of formula (I) and compound(s) of formula (II), in which R<1>, R<2> = H, CN, F, Cl, OCHF2, OCF3, SF5, OCHFCF3, OCH2CF3, OCF2CF3, CH3, OCH3, CF3, CH2F, CHF2 or 1-12C alkyl (optionally substituted at least once with halogen or CN and optionally with one or more CH2 groups replaced by -O-, -S-, -CO-, cyclobutane-1,3-diyl, -COO-, -OCO-, -OCOO- or -CH=CH-, with no directly linked hetero-atoms); A = (a) trans-1,4-cyclohexylene (optionally with one or more non-adjacent CH2 replaced by -O- and/or -S-), (b) 1,4-phenylene (optionally with one or two CH replaced by N), (c) 1,4-bicyclo(2.2.2)octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl or its decahydro and 1,2,3,4-tetrahydro derivatives or (d) 1,4-cyclohexenylene, where types (a), (b) and (d) may also be substituted with CN, Cl or F; Z<1>, Z<2> = -CH2-, -CF2-, -CHF-, -O-, -S-, -CH=CH-, -C equivalent to C- or -SF4-; n, m = 0-20; q = 0 or 1; R<3> = H or 1-12C alkyl (optionally substituted with one CN or CF3 group or with at least one halogen and optionally with one or more non-adjacent CH2 groups replaced by groups as listed for R<1> and R<2>; X = 1-10C alkyl or alkoxy (optionally substituted at least once with halogen), 2-10C alkenyl or alkenyloxy (optionally substituted at least once with CN, CF3 or F), F, Cl, CF3, OCHF2, OCF3, OCHFCF3 or OCF2CF3; L<1>-L<3> = H or F; p = 0, 1 or 2 . Independent claims are also included for (a) electro-optical LC displays containing this LC medium; (b) compounds of formula (IA)-(ID), in which v = 1-20; R<4>, ...

Method of producing acetic acid

FIELD: chemistry. SUBSTANCE: invention relates to an improved method of producing acetic acid via carbonylation of methanol and/or reactive derivative thereof with carbon monoxide in at least one carbonylation reaction zone, containing a liquid reaction composition containing a iridium carbonylation catalyst, a methyl iodide cocatalyst, water in an a limited concentration, acetic acid, methyl acetate and ruthenium and at least one of niobium salt or tantalum salt as promoters. EFFECT: method enables to conduct carbonylation with considerably smaller amounts of by-products while simultaneously maintaining an acceptable rate of reaction. 16 cl, 2 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 458 908 (13) C2 (51) МПК C07C 53/08 (2006.01) C07C 51/12 (2006.01) B01J 23/648 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008135129/04, 10.01.2007 (24) Дата начала отсчета срока действия патента: 10.01.2007 (72) Автор(ы): МИЛЛЕР Эндрью Джон (GB), СМИТ Стивен Джеймс (GB) (73) Патентообладатель(и): БП КЕМИКЭЛЗ ЛИМИТЕД (GB) R U Приоритет(ы): (30) Конвенционный приоритет: 30.01.2006 GB 0601863.4 (43) Дата публикации заявки: 10.03.2010 Бюл. № 7 2 4 5 8 9 0 8 (45) Опубликовано: 20.08.2012 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 6235673 B1, 22.05.2001. US 6452043 В1, 17.09.2002. WO 2005/009939 A1, 03.02.2005. EP 0749948 A1, 27.12.1996. WO 01/14055 A, 01.03.2001. RU 2160248 C2, 10.12.2000. 2 4 5 8 9 0 8 R U (86) Заявка PCT: GB 2007/000056 (10.01.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.09.2008 (87) Публикация заявки РСТ: WO 2007/085791 (02.08.2007) Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ", пат.пов. И.А.Веселицкой, рег.№ 0011 (54) СПОСОБ ПОЛУЧЕНИЯ УКСУСНОЙ КИСЛОТЫ (57) Реферат: Изобретение относится к усовершенствованному способу получения уксусной кислоты карбонилированием метанола и/или ...

Method and an installation for treatment of a solid powder fluoropolymer and a used in them sonde for a plasma reactor switching off

FIELD: chemical industry; a method and an installation for treatment of a solid powder fluoropolymer. SUBSTANCE: the invention is pertaining to the field of chemical industry, to a method and an installation for treatment of a solid powder fluoropolymer. The method provides for: generation in a zone of high temperature of an electric arc between at least one cathode and at least one anode; generation in the zone of high temperature and using an electric arc and the gaseous plasma, a conflagrant up thermal plasma having a caudal torch; formation of a chemically active thermal mixture of the thermal plasma with the caudal torch, and a fluoropolymer, which dissociates with formation at least of one precursor of fluorocarbon or other chemically active varieties for formation at least of one monomeric fluorocarbon compound. The invention also presents the installation for treatment of a solid powder fluoropolymer and the sonde for the plasma reactor switching off. The invention presents the method and the installation for production of monomeric fluorocarbon compounds from the solid powdery fluoropolymers. EFFECT: the invention presents the method and the installation for production of monomeric fluorocarbon compounds from the solid powdery fluoropolymers. 29 cl, 2 ex, 2 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2 262 501 (13) C2 C 07 C 17/367, B 01 J 19/08, H 01 J 17/02, 17/50 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2002122412/04, 09.02.2001 (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 09.02.2001 (30) Ïðèîðèòåò: 10.02.2000 (ïï.1-29) ZA 2000/0637 (45) Îïóáëèêîâàíî: 20.10.2005 Áþë. ¹ 29 2 2 6 2 5 0 1 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: RU 94037594 A1, 10.12.1996. ÅÐ 0282827 À2, 21.09.1988. US 3555823 À, 19.01.1971. (73) Ïàòåíòîîáëàäàòåëü(ëè): ÑÀÓÔ ÝÔÐÈÊÀÍ ÍÓÊËÅÀ ÝÍÅÐÄÆÈ ÊÎÐÏÎÐÅÉØÍ ËÈÌÈÒÅÄ (ZA), 3Ì ÈÍÍÎÂÝÉÒÈ ÏÐÎÏÅÐÒÈÇ ÊÎÌÏÀÍÈ (US) (85) Äàòà ïåðåâîäà çà âêè PCT ...

Method of preparing 1,1-dichloro-4-methyl-1,3-pentadiene

The dehydrohalogenation of a 1,1,1,3tetrahalo-4-methylpentane to a 1,1-dihalo-4-methyl-1,3-pentadiene is accomplished in the liquid phase in the presence of a catalytic amount of stannic chloride. The diene is a useful intermediate in the manufacture of insecticidal synthetic pyrethroid esters.

METHOD FOR PRODUCING ACETIC ACID

1. Способ получения уксусной кислоты карбонилированием метанола и/или его реакционноспособного производного моноксидом углерода в по меньшей мере одной зоне реакции карбонилирования, содержащей жидкую реакционную композицию, включающую иридиевый катализатор карбонилирования, метилиодидный сокатализатор, воду в ограниченной концентрации, уксусную кислоту, метилацетат и в качестве промоторов рутений и по меньшей мере один из ниобия и тантала. ! 2. Способ по п.1, в котором рутениевый промотор и по меньшей мере один из ниобия и тантала каждый содержится в жидкой реакционной композиции при молярном отношении промотора к иридию [от больше 0 до 15]:1. ! 3. Способ по п.1, в котором молярное соотношение иридия: рутения:(ниобия или тантала) находится в интервале 1:[от 1 до 10]:[от 1 до 10]. ! 4. Способ по п.3, в котором молярное соотношение иридия: индия: рутения (ниобия или тантала) находится в интервале 1:[от 2 до 6]:[от 2 до 6]. ! 5. Способ по п.1, в котором концентрация каждого промотора в жидкой реакционной композиции составляет меньше 8000 ч./млн. ! 6. Способ по п.1, в котором концентрация иридия в жидкой реакционной композиции находится в интервале от 100 до 6000 ч./млн. ! 7. Способ по п.1, в котором вода содержится в жидкой реакционной композиции в концентрации в интервале от 0,1 до 20 мас.%. ! 8. Способ по п.7, в котором концентрация воды находится в интервале от 1 до 15 мас.%. ! 9. Способ по п.8, в котором концентрация воды находится в интервале от 1 до 10 мас.%. ! 10. Способ по п.1, в котором метилацетат содержится в жидкой реакционной композиции в концентрации в интервале от 1 до 70 мас.%. ! 11. Способ по п.1, в котором метилиодид содержится в жидкой реакционной композиции в конце� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 135 129 (13) A (51) МПК C07C 51/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008135129/04, 10.01.2007 (71) Заявитель(и): БП КЕМИКЭЛЗ ЛИМИТЕД (GB) (30) ...

Method for preparation of halogenated organic compounds

Изобретение касаетс  галогенирован- ных органических веществ, в частности получени  соединений общей ф-лы 1: X-CRiR2-CH2-CXiX2-Y, где или СНз. , 2-пропил, C(0)-OR или С(СНзЬ-СН2- C( при R СНз или C2Hs; X - CI или Вг; Xi и Х2 F, Cl, Br, Y - F. Cl, С(ХОз, - полупродуктов дл  синтеза инсектицидов. Цель - повышение выхода целевого продукта. Синтез ведут реакцией соединени  ф-лы II и соединени  ф-лы III: II) RiR2C CH2. Ill) X- CXiX2-Y, в присутствии каталитической системы , содержащей соединение меди - хлорид меди и амин ф-лы IV: R3-NH-R4, где или группа R4, a - или разветвленный С1-С4-алкил или циклогексил, причем соотношение их равно 1:(1-20):(0,01-0.1):(0.2-1). Процесс ведут при 50-120&amp;deg;С и перемешивании. Эти услови  повышают выход целевого продукта с 40 до 86,7%. 1 табл. i The invention relates to halogenated organic substances, in particular the preparation of compounds of the total f-ly 1: X-CRiR2-CH2-CXiX2-Y, where is either CH3. , 2-propyl, C (0) -OR or C (CH3B-CH2-C (with R CH3 or C2Hs; X - CI or Br; Xi and X2 F, Cl, Br, Y - F. Cl, C (X - intermediates for the synthesis of insecticides. The goal is to increase the yield of the target product. Synthesis is carried out by reacting the compounds of f-II and the compounds of f-III: II) RiR2C CH2. Ill) X-CXiX2-Y, in the presence of a catalytic system containing copper - copper chloride and amine f-IV: R3-NH-R4, where either the group R4, a - or branched C1-C4-alkyl or cyclohexyl, and the ratio is 1: (1-20) :( 0.01- 0.1) :( 0.2-1.) The process is carried out at 50-120 ° C and stirring. These conditions increase the yield of the target product. CTA from 40 to 86.7%. Table 1. i

Manufacture of halogenated organic compound

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method for producing carbon tetrachloride and perchlorethylene

Method of producing 1,1-dichloro-4-methyl-1,3-pentadiene

THE METHOD OF THE PRODUCTION OF 1,1-DICHLORIDE-4-METHYL-PENTADIENE-1,3

Manufacture of dichloropentadiene

Method for implementing telomerizations

Patent FR2260552B1

Process for the manufacture of perchlorethylene

Tetrachlorobutene and chlorinated dienes prodn - by telomerization of pentachloroethane

Chlorinated dienes of formula CCl2 = CCl -CH=CHX (I)(where X is H, Cl or Me) and 1,1,2,4-tetrachloro-1-butene (II), which can be used as monomers for adhesives for bonding rubber to rubber or metal, are produced by telemerizing pentachloroethane with CH2=CHX in absolute isopropanol at 15-60 atm. and 135-145 degrees C in the presence of iron pentacarbonyl as catalyst, dehydrochlorinating the intermediate CHCl2CCl2CHXC1 with alkali in ethanol at 0-40 degrees C, and separating the end-products by distillation. The procedure uses readily available starting materials, avoids high temps, and gives good yields of the products (I) and (II). (I; X = Cl or Me) are new cpds.

Process for preparing a dihalobicycloheptadiene

1-Chloro-3,5,7-trimethyl-2,6-octadiene and a process for preparing it

The present invention relates to a new substance: 1-chloro-3,5,7-trimethyl-2,6-octadiene, and to a process for preparing it. The new compound, 1-chloro-3,5,7-trimethyl-2,6-octadiene, is of the following formula: CH3C(CH3)=CH-C(CH3)H-CH2-C(CH3)=CH-CH2Cl The process for preparing the compound indicated consists in that the methyl chloropentenes are reacted with isoprene in the presence of a catalyst, at a temperature from -50 DEG C up to +50 DEG C with subsequent isolation of the desired product. The product in question finds application in organic synthesis and as intermediate product for the synthesis of odorous substances.

Fluoroolefins and their preparation

Patent FR2126899A1

Manufacturing process of carbon tetrachloride

Patent FR2118864B1

Process for the production of halogenated hydrocarbons from unsaturated cyclic hydrocarbons

Manufacturing process for chlorinated hydrocarbons

Process for preparing chlorinated ethers

Method for implementing telomerizations

Dehydrochlorination of tetrachloroethane

Prepts of trichlorocthylene, petchloroethy - -lene and carbon tetrachloride by chlorin-

Prepn. of trichloroethylene, petchloroethylene and carbon tetrachloride by chlorinative pyrolysis of C3 hydrocarbons. The three compounds are simultaneously obtained by the action of chlorine at raised temp. and if required at a pressure other than atmospheric, on one or more of the following:- propane, propylene, or their partially chlorinated products. Diluents such as perchlorethylene, carbon tetrachloride and hydrogen chloride may also be present. The temp. of the reaction is kept between 475 and 525 degrees C and the mol prop. of chlorination Cl2/C3 is n to (n + 1), where n is the minimum molar ratio corresponding to the perchlorination. The residence time t, under a pressure p, (= 1 atm.) is at 475 degrees C 4.3 secs. at ratio n and 1.7 secs at ratio (n + 1) whilst at 525 degrees C t, it is 2.3 secs. and 1.7 secs. at ratio n and (n+1) respectively. Between 475 and 525 degrees C and between ratios n and (n+1) the values of t can be obtained from the given time-temp. diagram. The times of residence ti at any pressure pi, expressed as atm. can be calculated from t, using the equation t = t1 Pi - 1/2.

Perchlorethylene purification process

Process for carrying out telomerization

Process for preparing chlorocyanoacetylene

Process for preparation of tetrachloroalkanes

Preparation of 1,3-di-halo-substituted benzene derivatives

A process for preparing 1,3-di-halo-substituted benzene derivatives (II) from 2,6-di-halo-substituted benzaldehydes (I) (where X 1 , X 2 are each independently F, Cl, Br, and R 1 , R 2 , R 3 are each independently H, halogen, OH, C 1 –C 12 -alkyl, CF 3 , CHO, C 6 –C 14 -aryl, Oalkyl, Oaryl, NO 2 ) by reacting with an alkaline medium, which comprises initially charging the alkaline medium and metering in the 2,6-di-halo-substituted benzaldehyde (I) or initially charging the 2,6-di-halo-substituted benzaldehyde (I) and metering in the alkaline medium

Process for the manufacture of carbon tetrachloride

Process for chlorination,dehydrochlorination and purification of organic compounds

A process is provided for producing trichlorethylene, tetrachlorethylene or mixtures thereof including the steps of (1) reacting chlorine and ethylene in a liquid body containing predominantly chlorethanes, which chlorethanes have an average composition of at least 2.5 chlorine atoms per molecule; (2) maintaining the chlorethanes at a temperature in the range of 0* to 250* C.; (3) removing at least a portion of said chlorethanes and separating said removed material into a heavier product fraction containing a predominant amount of chlorethane having at least four chlorine atoms per molecule and a lighter fraction having an average chlorine content which is lower than that of said first fraction, the ratio of the number of mols of the heavier fraction to the number of mols of the lighter fraction being in the range of 1:0.1 to 1:30; (4) employing at least a portion of the said lighter fraction as liquid body in a subsequent chlorination reaction in accordance with steps (1), (2) and (3); and (5) dehydrochlorinating the heavier product fraction of step (3) by (6) maintaining the heavier product fraction at an elevated temperature in the liquid state while under positive pressure and in the presence of activated carbon.

Patent FR2156115B1

1,1-Dihalo 4-methyl pentadiene prepn. - from isobutene and 1,1,2-trihalo ethylene

L'invention concerne l'industrie des pesticides. Elle a pour objet un procédé perfectionné pour produire des 1,1-dihalogéno-4-méthylpentadiènes et spécialement du 1,1-dichloro-4-méthyl-1,3-pentadiène par réaction de l'isobutène avec un trihalogénoéthylène en phase vapeur à une température pouvant atteindre environ 600 degrés C. Le 1,4-pentadiène formé peut être isomérisé en le 1,3-pentadiène correspondant. Le procédé est préféré en raison de sa simplicité et de son efficacité pour la production de tels diènes qui sont d'utiles intermédiaires pour la préparation d'insecticides.

Partially fluorinated compounds

Described herein is a composition comprising a partially fluorinated compound selected from the group consisting of: (a) I(CF 2 ) x CH 2 CF 2 I; (b) ICF 2 CH 2 (CF 2 ) x CH 2 CF 2 I; (c) I(CF 2 ) y CH═CF 2 ; (d) CF 2 ═CH(CF 2 ) y CH 2 CF 2 I; and (e) CF 2 ═CH(CF 2 ) y CH═CF 2 wherein x is an odd integer selected from 3 to 11, and y is an integer greater than 2, along with methods of making and polymerizing such compounds.

PROCESS FOR THE PREPARATION OF 1,1-DICHLORO-4-METHYL-1,3-PENTADIENE AND INTERMEDIATE PRODUCTS OF THIS PREPARATION

PROCEDE DE PREPARATION DU DICHLOROPENTADIENE DE FORMULE VI: (CF DESSIN DANS BOPI) A PARTIR DU 1,1,1-TRICHLORO-2-HYDROXY-4-METHYL-PENTENE-3 DE FORMULE I: (CF DESSIN DANS BOPI) ET DU 1,1,1-TRICHLORO-2-HYDROXY-4-METHYL-PENTENE-4 DE FORMULE II: (CF DESSIN DANS BOPI) EUX-MEMES OBTENUS PAR REACTION ENTRE LE CHLORAL ET L'ISOBUTYLENE.QU'ON FAIT LUI-MEME REAGIR, EVENTUELLEMENT APRES ACYLATION, AVEC UNE POUDRE METALLIQUE, LA REACTION DONNANT LE 1,1,4-TRICHLORO-4-METHYL-PENTENE DE FORMULE V: (CF DESSIN DANS BOPI) QU'ON FAIT REAGIR AVEC UNE BASE. PROCESS FOR PREPARING DICHLOROPENTADIENE OF FORMULA VI: (CF DRAWING IN BOPI) FROM 1,1,1-TRICHLORO-2-HYDROXY-4-METHYL-PENTENE-3 OF FORMULA I: (CF DRAWING IN BOPI) AND 1 , 1,1-TRICHLORO-2-HYDROXY-4-METHYL-PENTENE-4 OF FORMULA II: (CF DRAWING IN BOPI) THEY OBTAINED BY REACTION BETWEEN CHLORAL AND ISOBUTYLENE. , POSSIBLY AFTER ACYLATION, WITH A METAL POWDER, THE REACTION GIVING 1,1,4-TRICHLORO-4-METHYL-PENTENE OF FORMULA V: (CF DRAWING IN BOPI) WHICH IS REACTED WITH A BASE.

Preparation of 1, 1, 1, 3-tetrachloropropane

Manufacture of chlorofluoro methanes

Process for the production of acetic acid

Postupak dobijanja sirćetne kiseline karbonilacijom metanola i/ili njegovog reaktivnog derivata sa ugljen monoksidom u prisutvu potpomognutog karbonilacionog katalizatora iridijuma, gde su promoteri rutenijum i bar jedan od niobijuma i tantala.

Method for producing perfluoroalkaziene compound

Process for the preparation of 1,1,1-trichloromethyl compounds

1. A process for the preparation of a 1,1,1-trichloromethyl compound of the formula (I) see diagramm : EP0075201,P7,F1 where R is an aliphatic radical, by reacting chloroform with an olefin of the formula (II) R-CH=CH2 where R has the above meaning, in the presence of a freeradical initiator, wherein the reaction is carried out in the presence of a weakly basic alkali metal salt or alkaline earth metal salt.

METHOD FOR PRODUCING CONNECTIONS WITH ALKYL RESIDUE MULTIPLE BY CHLORINE SUBSTITUTED

Ethylene telomerization

ETHYLENE AND ORGANIC IODIDES ARE TELOMERIZED TO HIGHERMOLECULAR-WEIGHT ORGANIC IODIDE PRODUCTS IN THE PRESENCE OF A COPPER CHELATE OF A B-DIKETONE MONOENOLATE.

1-substituted conjugated alka-(E,Z)-diene compounds and a method for the preparation thereof

The invention provides a novel compound 1-halo-(E,Z)-7,9-­dodecadiene, e.g. 1-chloro-(E,Z)-7,9-dodecadiene, which is an inter­mediate for the preparation of several conjugated diene compounds useful as a sex pheromone of insects used for controlling insectan pests in the field and a method for the synthesis of such a com­pound, The method comprises a Wittig reaction of a 9-halo-(E)-2-­nonen-1-al, i.e. X(CH₂)₆CH=CHCHO, with a phosphoranylidene compound, e.g. CH₃(CH₂)₂CH=P(C₆H₅)₃.

Perchlorination process

PROCESS FOR THE PREPARATION OF 3,3-DIMETHYL-4-PENTENIC ACID

Polyfluoroalkadiene mixture and method for producing the same

A mixture of polyfluoroalkadienes represented by the general formulae: CF3(CF2)n CF=CH(CF2)m+1CH=CH2 [Ia] and CF3(CF2)n+1CH=CF(CF2)m CH=CH2 [Ib], wherein n is an integer of 0 to 5, and m is an integer of 0 to 6, is obtained as a mixture fraction of products [Ia] and [Ib] by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I [II], with an organic basic compound. The polyfluoroalkadiene mixture is compounds having a perfluoroalkyl group in which the number of successive CF2 groups is 5 or less, and is effectively used as a copolymerizable monomer in the production of resinous or elastomeric fluorine-containing copolymers, which are used as active ingredients of surface--treating agents, such as water- and oil- repellents and mold-release agents.

PREPARATION AND REDUCTION OF A NEW TETRACHLOROPENTANE DERIVATIVE

METHOD FOR PRODUCING FLUORBENZENE.

Method for producing perfluoroalkadiene compound

本發明係關於一種全氟鏈烷二烯化合物的製造方法，其為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟； [式中，n與前述相同。X 1 、X 2 及X 3 為相同或相異，X 1 及X 2 表示鹵素原子，X 3 表示氯原子、溴原子或碘原子。但，未有X 1 及X 2 的雙方為氟原子之情況]；前述反應步驟中含有，將含有鋅或者鋅合金以及有機溶劑的溶液、含氮化合物與前述一般式(2)所示化合物以逐次方式進行混合的混合步驟時，可減少難分離的雜質之生成量且可高產率下得到全氟鏈烷二烯化合物。

Process for preparing 1*11dihaloo44methylpentadiene

Method for producing fluorinated olefin and method for producing hydrofluorocarbon using fluorinated olefin

7-methyl-3-methylene-7-octenyl halide, method for producing the same, and method for producing 7-methyl-3-methylene-7-octenyl propionate

提供一种简单、选择性且高效的制备7-甲基-3-甲烯基-7-辛烯基丙酸酯等的方法。更具体地，提供例如一种制备7-甲基-3-甲烯基-7-辛烯基丙酸酯的方法，包括以下步骤：使式(1)表示的亲核试剂和式(2)表示的亲电试剂进行偶联反应，得到式(3)表示的7-甲基-3-甲烯基-7-辛烯基卤化物，以及使7-甲基-3-甲烯基-7-辛烯基卤化物(3)进行丙酰氧基化，得到式(4)表示的7-甲基-3-甲烯基-7-辛烯基丙酸酯。

Production of difluoromethane

A process for the production of difluoromethane which comprises contacting bis(fluoromethyl)ether in the liquid phase with boron trifluoride under conditions such that the molar ratio of boron trifluoride to bis(fluoromethyl)ether is at least 0.05:1.

METHOD FOR PREPARING HALOGENATED ORGANIC COMPOUNDS.

Production of unsaturated fluorine compounds

Method for preparing photoinitiator TPO and simultaneously producing benzyl chloride as byproduct

本发明提供的制备光引发剂TPO同时副产氯苄的方法，既避免了TPO的生产中大量的有机废气氯乙烷等的回收问题，又避免了氯苄生产中副产多氯气污染严重的问题。氯苄是一种重要制备光引发剂369的化工原料，因此本发明方法大大降低了生产成本。并且整个工艺制备成本低、操作过程简单、反应过程安全易于控制，易于实现大规模生产。

Treatment of fluorocarbon feedstocks

본 발명은, 고온 구역에서 1개 이상의 음극 및 1개 이상의 양극 사이에 전기 아크를 발생시키는 단계; 고온 구역에서 전기 아크 및 플라즈마 기체에 의해 상향으로 연소하는 꼬리형 화염을 갖는 열 플라즈마를 발생시키는 단계; 1종 이상의 불화탄소를 포함하는 고체 미립자 불화탄소 공급 원료를 열 플라즈마 꼬리형 화염에 의해 반응성 열 혼합물로 형성시켜 불화탄소 화합물을 1종 이상의 불화탄소 전구체 또는 반응성 종으로 해리시키는 단계; 및 반응성 열 혼합물을 냉각시켜 불화탄소 전구체 또는 반응성 종으로부터 1종 이상의 목적하는 불화탄소 화합물을 형성시키는 단계를 포함하는, 불화탄소 공급 원료를 처리하는 방법을 제공한다. The present invention comprises the steps of generating an electric arc between at least one cathode and at least one anode in a high temperature zone; Generating a thermal plasma having a tailed flame burning upward by the electric arc and the plasma gas in the hot zone; Forming a solid particulate fluorocarbon feedstock comprising at least one fluorocarbon into a reactive thermal mixture with a thermal plasma tailed flame to dissociate the fluorocarbon compound into at least one fluorocarbon precursor or reactive species; And cooling the reactive thermal mixture to form one or more desired fluorocarbon compounds from a fluorocarbon precursor or reactive species.

Process for preparing 1,1-dihalo-4-methyl-1,3-pentadienes

Die Erfindung betrifft ein Verfahren zur Herstellung von 1,1-Dihalogen-4-methyl-1,3-pentadienen, das dadurch gekennzeichnet ist, daß man 2,2-Dimethyl-3,5,5,5-tetrahalogenpenthyl-1-Derivate der Formel <IMAGE> mit basisch reagierenden Stoffen im Temperaturbereich von etwa 20 bis etwa 160°C, gegebenenfalls in Gegenwart von inerten Verdünnungsmitteln, umsetzt. The invention relates to a process for the preparation of 1,1-dihalogen-4-methyl-1,3-pentadienes, which is characterized in that 2,2-dimethyl-3,5,5,5-tetrahalogenpenthyl-1 derivatives of the formula <IMAGE> with basic reacting substances in the temperature range from about 20 to about 160 ° C, optionally in the presence of inert diluents.

Process for obtaining tetrachlorethylene and carbon tetrachloride

Chlorination process of lower aliphatic hydrocarbons

Also can produce in the tetracol phenixin equipment by chlorination 1, the 2-ethylene dichloride is produced the method for trieline and tetrachloroethylene simultaneously

本发明涉及通过氯化1，2二氯乙烷生产三氯乙 烯和全氯乙烯的方法。在工业环形反应器内引起氯 化反应发生，用此反应器设备被装配，此反应器过去 常用于生产四氯化碳和全氯乙烯。 现在，通过采用特定的操作条件和对蒸馏部分做 一些修改之后，在相同设备中可生产三氯乙烯或全氯 乙烯或四氯化碳和全氯乙烯。

Production of polyhaloalkanes

Synthesis of e,e-farnesol, farnesyl acetate and squalene from farnesene via farnesyl chloride

The present disclosure provides methods for preparing polyunsaturated hydrocarbons, such as E,E-farnesol, farnesyl acetate and squalene, by base catalyzed addition of a dialkylamine to a 3-methylene-1-alkene, such as farnesene. The present disclosure also provides compositions including one more farnesene derivatives prepared using the disclosed methods.

Process for the production of halogenated organic compounds

Pesticidal agents containing halogenoolefines,certain novel halogenoolefines and their preparation

A method of combating arthropods and nematodes which comprises applying thereto, to a habitat thereof or to an area from which they are to be excluded an arthropodicidally or nematocidally effective amount of at least one long-chain halogenoolefine of the formula (I) <IMAGE> (I) in which R represents a straight-chain or branched alkyl radical with 8 to 25 carbon atoms in the straight chain, the alkyl radical optionally being interrupted once or several times by a -C 3BOND C- and/or <IMAGE> in which Z and Z1 are identical or different and represent hydrogen or methyl and R1 represents hydrogen, alkyl or halogen. Those compounds are new wherein R has at least 12 carbon atoms in the straight chain.

New isoprene chain alcohols and their preparation

Method for utilizing fluoroalkyl iodide

According to the present invention, an alkali metal iodide can be collected by a method comprising reacting a fluoroalkyl iodide with ethylene to produce an ethylene adduct and reacting the ethylene adduct with an alkali metal hydroxide in the presence of a lower alcohol to remove hydrogen iodide from the resultant product, thereby converting the ethylene adduct into an olefinated product. According to the present invention, solid iodine can also be collected by further subjecting the alkali metal iodide to an iodination treatment to separate iodine from the alkali metal iodide. Therefore, according to the present invention, a telomere having an unnecessary chain length, which is produced during the production of an fluoroalkyl iodide employing a telomerization reaction, can be re-used effectively without requiring any complicated separation procedure or the like and without adversely affecting an apparatus.

Treatment of fluorocarbon feedstocks

A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, an upwardly burning thermal plasma having a tail flame, allowing a solid particulate fluorocarbon feedstock comprising at least on fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor of reactive species, at least one more desirable fluorocarbon compound.

Process for the production of 1, 1, 1, 3-tetrachloropropane

Process for the manufacture of 1,1-dihalo-4-methyl-1, 3-pentadienes

Abstract of the Disclosure The dehydrohalogenation of a 1,1,1,3-tetrahalo-4-methylpentane to a 1,1-dihalo-4-methyl-1,3-pentadiene is accomplished in the liquid phase in the presence of a catalytic amount of stannic chloride. The diene is a useful intermediate in the manu-facture of insecticidal synthetic pyrethroid esters.

Polyfluoroalkadiene mixture and process for producing the same

一般式 CF3(CF2)nCF=CH(CF2)m+1CH=CH2〔Ia〕および一般式 CF3(CF2)n+1CH=CF(CF2)mCH=CH2〔Ib〕(ここで、nは0〜5の整数であり、mは0〜6の整数である)で表わされるポリフルオロアルカジエン混合物が、一般式 CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I〔II〕で表わされるポリフルオロアルキルアイオダイドに有機塩基性化合物を反応させ、生成物〔Ia〕および〔Ib〕の混合物留分として取得することによって製造される。このポリフルオロアルカジエン混合物は、パーフルオロアルキル基の連続したCF2基の数が5以下の化合物であって、撥水撥油剤、離型剤等の表面処理剤の有効成分となる樹脂状またはエラストマー状含フッ素共重合体の製造に際し、共重合性単量体として有効に用いられる。 General formula CF3 (CF2) nCF = CH (CF2) m + 1CH = CH2 [Ia] and general formula CF3 (CF2) n + 1CH = CF (CF2) mCH = CH2 [Ib] (where n is 0-5 (Where m is an integer of 0 to 6), and a polyfluoroalkadiene mixture represented by the general formula CF3 (CF2) n + 1CH2 (CF2) m + 1 (CH2CH2) I [II] It is produced by reacting an organic basic compound with polyfluoroalkyl iodide and obtaining it as a mixture fraction of products [Ia] and [Ib]. This polyfluoroalkadiene mixture is a compound having 5 or less continuous CF2 groups of perfluoroalkyl groups, and is a resinous or elastomeric material that is an active ingredient of a surface treating agent such as a water / oil repellent and a release agent In the production of the fluorinated copolymer, it is effectively used as a copolymerizable monomer.

Manufacturing process of carbon tetrachloride and perchlorethylene

A method of preparing olefinically unsaturated chlorinated hydrocarbons

Trichloroethylene and/or perchloroethylene are obtained in a process which comprises passing a gaseous mixture initially containing chlorine and tetrachloroethane sequentially through at least two catalytic zones, effecting substantially all of the exothermic portion of the conversion in the first of said zones and thereby consuming essentially all of the chlorine in the said first zone and conducting the endothermic dehydrochlorination in the second catalyst zone in the substantial absence of chlorine and while preventing substantial flow of material from said second zone to the first zone. When the primary product is to be trichloroethylene the preparation involves employing up to 0.4 mol. of chlorine per mol. of tetrachloroethane and the temperature of the first zone being between 460-600 DEG F. and of the second zone between 450-700 DEG F. When the primary product is to be perchloroethylene the preparation employs more than 0.4 mol. of chlorine per mol. of tetrachloroethane, the temperature of the first zone being between 450-650 DEG F. and of the second zone being between 400-500 DEG F. and from 30-130 DEG F. cooler than the first zone. As catalysts there may be used barium chloride, strontium chloride, calcium chloride, cadmium chloride, copper chloride, magnesium chloride and other salts of bivalent metals. The reaction may be effected employing separate catalyst beds contained in an elongated tubular reactor having a diameter of less than 3 inches. The relative temperature of the two zones may be controlled by transferring heat from the second to the first zone. The retention time in the second zone should be at least 6 seconds.

Process for carrying out telomerisation reactions

In a process for the preparation of telomers of olefines such as ethylene, propylene, hexene, octene or styrene by reacting with telogens, such as carbon tetrachloride, chloroform, cyanogen chloride or aldehydes in the presence of free radical forming catalysts, the catalyst is sprayed, preferably through a nozzle in a finely-divided liquid form or as a solution in an inert solvent, or as a solution or suspension in the telogen into the gaseous or liquid reaction mixture. Elevated temperatures and pressures, e.g. up to 250 DEG C. and between 20 and 1000 atmospheres respectively, may be used and the process may be continuous or intermittent. The catalysts may be, e.g., organic peroxides, azobutyric nitrile, redox systems or hydrogen peroxide. In examples (1) to (4) a mixture of azo-isobutyric acid nitrile catalyst and cyanogen chloride is sprayed into ethylene under pressure, fresh ethylene constantly added and the resulting telomer separated by vacuum distillation to form an undistillable fraction and a distillate which is vacuum rectified to yield in Example 1, b -chloropropionic, d -chloro-n-valeronitrile, o -chloro - n - enanthic, w - chloro - n - pelargonic, w - chloro - n - undecanic acid nitriles and higher compounds. In Example (5), carbon tetrachloride containing benzoyl peroxide catalyst is sprayed into ethylene to yield, 1,1,1,3-tetrachloropropane, 1,1,1,5-tetrachloropentane, 1,1,1,7 - tetrachloroheptane, 1,1,1,7 - tetrachlorononane and above; and in Examples (6) and (7) carbon tetrachloride containing azoisobutyric acid nitrile yields C3 to C9 fractions. Specifications 836,896 and 836,897 are referred to.ALSO:In a process for the preparation of telomers of olefines such as ethylene, propylene, hexene, octene, or styrene by reacting with telogens such as carbon tetrachloride, chloroform, cyanogen chloride or aldehydes in the presence of freeradical forming catalysts, the catalyst is sprayed preferably through a nozzle in a finely divided liquid form or as ...

Process for the manufacture of carbon tetrachloride

In the process for the manufacture of carbon tetrachloride from benzene, mixtures of benzene and chlorinated aliphatic or aromatic compounds, or chlorinated aromatic compounds, with chlorine in an excess amount of up to 300 percent, in the absence of catalysts in the gaseous phase in two reaction stages at a temperature in the first stage of from 6 DEG to 400 DEG C. and in the second stage of from 400 DEG to 800 DEG C. the space-time-yield is considerably increased by operating in both reaction stages under a pressure in the range of from 200 to 700 atmospheres. The reaction is carried out in a corrosion resistant reactor in continuous manner using 0.2 to 4 moles of organic compound or compounds per liter of reaction space per second.

PROCEDURE FOR THE PREPARATION OF CARBON TETRACHLORIDE

Preparation of 1,1-dichloro-4- methyl-1,3-pentadiene and intermediates therefor

A process is described for the preparation of 1,1-dichloro-4-methyl- 1,3-pentadiene in which 1,1,1,4- tetrachloro-2-hydroxy-4- methylpentane or an acylated derivative thereof is subjected to selective reductive elimination (e.g. with metal powder or by catalytic hydrogenation) to give 1,1,4-trichloro- 4-methyl-pent-1-ene. The latter is then dehydrochlorinated to give the pentadiene. The tetrachloro starting materials may be prepared by reaction of chloral and isobutylene to give a mixture of 1,1,1-trichloro-2-hydroxy-4-methyl- pent-3-ene and -4-ene; this mixture is then treated with HCl to give the tetrachloro-hydroxy-methylpentane, or treated with HCl and acylated (in either order to give the acylated derivatives.

Recovery of chlorinated compounds from heavy residues formed during the manufacture of chlorinated compounds

Procedure for the recovery of residual heavy chlorinated hydrocarbon mixtures, derived from the manufacture of chlorinated solvents in C1 and/or C2, characterized in that heavy residues and molecular chlorine are introduced into a chlorination zone in the vapor phase at a temperature comprised between 400º and 600ºC, the effluent is then subjected to a separation by distillation of carbon tetrachloride and perchlorethylene resulting in recovered products, and the residue from this distillation and molecular chlorine are passed to a homogeneous zone of chlorination in the liquid phase where the temperature is from 100º to 200ºC, under atmospheric pressure and where chlorination is carried out in the presence of 15 to 1800 parts per million by weight of ferric chloride. (Machine-translation by Google Translate, not legally binding)

Treatment of fluorocarbon feedstocks

A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, an upwardly burning thermal plasma having a tail flame, allowing a solid particulate fluorocarbon feedstock comprising at least on fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor of reactive species, at least one more desirable fluorocarbon compound.