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WO/2013/055722A1 |
The present invention relates, in part, to the discovery that the presence of impurities in a reactor for dehydrochlorinating HCFC-244bb to HFO-1234yf results in a reduced conversion rate and/or a selectivity changeover from HFO-1234yf t...
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WO/2013/055894A1 |
The present invention relates, in part, to the discovery that the presence of impurities in 1, 1, 2, 3-tetrachloropropene (1230xa) results in catalyst instability during the fluorination of 1230xa to 2-chloro-3, 3, 3-trifluoropropene. By...
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WO/2013/055726A1 |
The present invention relates, in part, to the discovery that the presence of impurities in a reactor for dehydrochlorinating HCFC-244bb to HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially rem...
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WO/2013/052212A1 |
The present invention relates, in part, to compositions including at least one hydrofluoro-olefin or hydrochlorofluoro-olefin solvent. Such compositions may optionally contain one or more alcohols or other co-solvent or agent and may be ...
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WO/2013/049742A1 |
The present invention relates, in part, to the discovery that the presence of HF in a HCFC-244bb feedstream in a reaction for the preparation of HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantiall...
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WO/2013/049105A1 |
The present invention provides a method for separating halocarbons. In particular, the invention provides a method for separating halogenated olefin impurities from 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) using a solid adsorbent...
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WO/2013/049743A1 |
The present invention relates, in part, to the discovery that high temperatures during the fluorination of 1, 1, 2, 3-tetrachloropropene (HCO-1230xa) to 2-chloro-3, 3, 3-trifluoropropene (HCFO-1233xf) results in catalyst instability, red...
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WO/2013/045791A1 |
The present invention relates to a method for manufacturing 2,3,3,3-tetrafluoropropene from halopropanes having the formula CX3CHCICH2X and halopropenes having the formulas CX3CCI=CH2/CCIX2CCI=CH2 and CX2=CCICH2X, where X is independentl...
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WO/2013/043278A1 |
One exemplary embodiment can be a process for treating an interior of equipment for an isomerization unit. Generally, the isomerization unit includes at least one of a drying zone, an isomerization reaction zone, and a stabilizer zone, f...
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WO/2013/037286A1 |
Provided are a fluorination catalyst for preparing 2,3,3,3-tetrafluoropropene and a method using the catalyst for preparing 2,3,3,3-tetrafluoropropene. The catalyst has the following structural formula: Cr1(Y,Z)0.005-0.5O0.1-1.0F1.0-3.0,...
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WO/2013/039260A2 |
The present invention provides a method for purifying chlorinated hydrocarbon(s), comprising cooling a mixture containing hydrogen fluoride and at least one chlorinated hydrocarbon selected from the group consisting of 2-chloro-3,3,3-tri...
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WO/2013/032903A1 |
The present disclosure provides a process for the preparation of chlorofluoroolefin. The process involves chlorinating a hydrochlorofluoroolefin of the formula R1CH=CCIR2 to produce a product mixture comprising a chlorofluoroolefin of th...
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WO/2013/026941A1 |
This invention relates to an improved radiosynthesis of [18F]fluoromethyl bromide, whereby the distillation step has been improved to remove higher amounts of the dibromomethane radiolabeling precursor.
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WO/2013/022677A1 |
Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydro...
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WO/2013/022806A1 |
Processes for the production of chlorinated propenes are provided wherein a dehydrochlorination reaction occurs prior to a first chlorination reaction. The present processes make use of at least one reactor twice, i.e., at least two reac...
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WO/2013/022676A1 |
Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydro...
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WO/2013/018465A1 |
This method for producing a geminal difluoro compound comprises a step wherein a fluorine-containing enol sulfate ester is reacted with a fluorination agent (such as hydrogen fluoride or "a salt or complex composed of an organic base and...
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WO/2013/015068A1 |
The present invention provides a method for efficiently preparing 2,3,3,3-tetrafluoropropene (HFO-1234yf) by a simple and economically advantageous method that is suitable for implementation on an industrial scale. The present invention ...
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WO/2013/011291A1 |
The invention provides a process for reducing the flammability of product comprising predominantly R-1234ze by removing impurities from that product.
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WO/2013/011311A1 |
The invention provides a process comprising contacting (1243zf) or (253fb) with hydrogen in the presence of a hydrogenation catalyst to produce a composition comprising 1,1,1-trifluoropropane (263fb).
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WO/2013/008671A1 |
By means of the present invention, 1-chloro-3,3,3-trifluoropropyne can be obtained with a high yield by reacting 1-chloro-1,2-dihalogeno-3,3,3-trifluoropropane in a liquid phase with a base under moderate conditions. Further, even when u...
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WO/2013/008670A1 |
By means of the present invention, 1-chloro-3,3,3-trifluoropropyne can be obtained with a high yield by reacting 1-chloro-2-halogeno-3,3,3-trifluoropropene in a liquid phase with a base under moderate conditions. Further, even when using...
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WO/2013/008509A1 |
Provided are: a novel method for stabilizing an allyl bromide allyl bromide compound, whereby it becomes possible to prevent the occurrence of isomerization and decomposition of the allyl bromide compound to thereby keep the purity of th...
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WO/2013/007906A1 |
The present invention relates to a method for separating a composition containing 2,3,3,3-tetrafluoropropene and hydrofluoric acid, and for recovering the thus-separated 2,3,3,3-tetrafluoropropene and hydrofluoric acid. The invention als...
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WO/2013/002888A1 |
Process and systems for converting lower molecular weight alkanes to higher molecular weight hydrocarbons that include fractionation of brominated hydrocarbons, wherein the brominated hydrocarbons are formed by reaction of the lower mole...
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WO/2012/169635A1 |
A PAH compound in which a desired position in a C-H bond is directly arylated can be produced in a simple manner by performing a C-H/C-B coupling procedure using a palladium compound, o-chloranil and a specific boron compound. When the s...
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WO/2012/170239A1 |
Processes for the production of chlorinated and/or fluonnated propenes provide good product yield with advantageous impurity profiles in the crude product. Advantageously, the processes may be conducted at lower temperatures than 600°C,...
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WO/2012/170132A1 |
Process and systems for converting lower molecular weight alkanes to higher molecular weight hydrocarbons that include demethanization of brominated hydrocarbons, wherein the brominated hydrocarbons are formed by reaction of the lower mo...
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WO/2012/166754A2 |
Disclosed is a process for the manufacture of haloalkane compounds, and more particularly, to an improved process for the manufacture of the compound 1,1,1,3,3-pentachloropropane (HCC-240fa), which mitigates the formation of by-products....
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WO/2012/166394A1 |
Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or in combination with 1,2,3...
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WO/2012/166759A2 |
Disclosed is a process for the manufacture of haloalkane compounds, and more particularly, an improved process for the manufacture of the compound 1,1,1,3,3-penta-chloropropane (HCC-240fa), which mitigates the formation of by-products fr...
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WO/2012/166393A1 |
Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstream comprising 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or i...
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WO/2012/157760A1 |
A polyvalent vinyl aromatic compound represented by chemical formula (4) is produced by reacting (1) a specific vinyl aromatic compound and (2) a specific vinyl compound in the presence of (3-1) a metal complex and (3-2) a percarboxylic ...
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WO/2012/158848A2 |
A hydrogenation process is disclosed. The process involves reacting a fluoroolefin with H2 in a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, wherein the palladium catalyst comprises pallad...
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WO/2012/154227A2 |
Disclosed is an integrated process to co-produce trans-1-chloro-3,3,3-trifluoro- propene (1233zd(E)), trans-1,3,3,3-tetrafluoropropene (1234ze(E)), and 1,1,1,3,3- pentafluoropropane (245fa). Overall the co-production is a three-step proc...
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WO/2012/148695A2 |
Disclosed is a fully integrated process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa), trans-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)), and trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)). The chemistry involves (a) the rea...
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WO/2012/143652A1 |
The invention relates to a method for reducing the total acidity of refrigerant compositions comprising at least one refrigerant fluid with at least one lubricant, said method including at least one step in which the composition is broug...
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WO/2012/145188A2 |
Trans-1233zd, the trans-isomer of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) can be used as blowing agents, solvents, cleaning agents, as well as monomers of macromolecule compounds, and can be prepared through the dehydrochlorination...
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WO/2012/142956A1 |
The present invention provides a method for synthesizing a trifluorostyrene compound, wherein the trifluorostyrene compound shown in formula II is formed from the compound shown in formula I in an inert solvent under basic conditions in ...
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WO/2012/133256A1 |
A polymer compound which contains a constituent unit represented by formula (1). (In the formula, each of R1 and R2 represents an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group or an aryloxy group; ...
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WO/2012/121156A1 |
The invention relates to a method for producing an alkene derivative represented by general formula [4] (wherein R1 represents an aryl group having, as a substitute, an alkyl group, an alkoxy group, a halogen atom, an amino group, or a n...
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WO/2012/121340A1 |
The purpose of the present invention is to provide a preparation method which enables the easy and efficient (high yield, high selectivity, low cost) preparation of fluorine-containing olefins having organic-group substituents, from fluo...
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WO/2012/121345A1 |
The purpose of the present invention is to provide a preparation method which enables the easy and efficient (high yield, high selectivity, low cost) preparation of fluorine-containing olefins having organic-group substituents, from fluo...
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WO/2012/115957A1 |
A dehydrochlorination process is disclosed. The process involves contacting RfCHClCH2Cl with a catalyst in a reaction zone to produce a product mixture comprising RfCCl=CH2, wherein said catalyst comprises MY supported on carbon, and whe...
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WO/2012/113726A1 |
Process to obtain a trifluoromethylating composition which comprises the reaction between a copper (I) source and a base in the presence of a solvent and between the resulting cuprating reagent with fluoroform.
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WO/2012/115930A1 |
A dehydrochlorination process is disclosed. The process involves contacting R1CFClCH2X with a catalyst in a reaction zone to produce a product mixture comprising R1CF=CHX, wherein said catalyst comprises MY supported on carbon, and where...
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WO/2012/115938A1 |
A dehydrochlonnation process is disclosed. The process involves contacting RfCHCICH2CI with a chromium oxyfluoride catalyst in a reaction zone to produce a product mixture comprising RfCCI=CH2, wherein Rf is a perfluorinated alkyl group.
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WO/2012/115934A1 |
A dehydrochlorination process is disclosed. The process involves contacting R1CHClCH2 with a carbon catalyst in a reaction zone to produce a product mixture comprising R1CCl=CH2, wherein Rf is a perfluorinated alkyl group.
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WO/2012/116254A2 |
Embodiments of antimicrobial chrysophaentin compounds, pharmaceutical compositions including the chrysophaentin compounds, methods for using the chrysophaentin compounds, and methods for synthesizing the chrysophaentin compounds are disc...
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WO/2012/113778A1 |
Process for the hydrohalogenation of an alkyne and for manufacturing vinyl chloride by hydrochlorination of acetylene in the presence of a catalytic system comprising at least one ionic liquid comprising at least one non-protonated catio...
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