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US20090275785 |
Distillation Method For The Purification Of Sevoflurane And The Maintenance Of Certain Equipment That May Be Used In The Distillation Process
Processes for preparing commercial quantities of a stable, pharmaceutically acceptable sevoflurane substantially tree of impurities are claimed. In another embodiment, a process for removing... |
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US20080214875 |
Purification of Fluoromethyl 1,1,1,3,3,3-Hexafluoroisopropyl Ether (Sevoflurane)
Crude sevoflurane product comprising unacceptably high levels of HFIP can be purified by combining the crude sevoflurane product with sufficient water to produce a multiphase mixture, fractionally... |
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US20120083629 |
METHOD FOR PRODUCING FLUORINE-CONTAINING ETHER WITH HIGH PURITY
The present invention provides a method for efficiently producing a highly pure fluoroether containing remarkably low concentration of a fluorine-containing alkyl alcohol. The method is suited for... |
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US20110098511 |
METHOD OF PREPARING FLUORINE-CONTAINING ETHER
There is provided a method of preparing a high purity fluorine-containing ether which inhibits a side reaction generating an unsaturated bond and assures low cost and simple steps. When preparing... |
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US20100280283 |
Distillation Method for the Purification of Sevoflurane and the Maintenance of Certain Equipment that May be Used in the Distillation Process
Processes for preparing commercial quantities of a stable, pharmaceutically acceptable sevoflurane substantially free of impurities are claimed. In another embodiment, a process for removing... |
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US20080086019 |
METHOD FOR TREATING FLUORINATED ALKYL ETHER
To provide a method for producing a high purity fluorinated alkyl ether having a very low content of an impurity having an unsaturated bond at the industrial scale. A method for treating a... |
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US20130046117 |
PROCESS FOR THE MANUFACTURING OF SEVOFLURANE
The present invention provides a method for forming sevoflurane comprising (i) combining chlorosevo ether, a nucleophilic fluoride reagent, and a solvent comprising sevoflurane to form an initial... |
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US20110282104 |
NOVEL ALKYL PERFLUOROALKENE ETHERS
Disclosed are compositions comprising a compound having the formula CF3(CF2)xCF═CFCF(OR)(CF2)yCF3, wherein R is CH3 or C2H5or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3,... |
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US20160096793 |
SYSTEMS AND METHODS FOR GAS TREATMENT
A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice... |
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US20150376100 |
METHOD FOR RECOVERING FLUORINE-CONTAINING ETHER
An object of the present invention is to provide a method for recovering a fluorine-containing ether capable of recovering a fluorine-containing ether used for producing a fluoropolymer, in higher... |
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US20150336864 |
SYSTEMS AND METHODS FOR GAS TREATMENT
A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice... |
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US20150301001 |
FULLY AUTOMATED ANALYTICAL METHOD FOR DETERMINATION OF CHLOROETHERS IN WATER AND URINE SAMPLE
A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas... |