| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568860000 | Preparing by hydroxylation at point of ethylenic unsaturation | 11 |
| 20080300431 | PROCESS FOR PREPARING AN ALKYLENE GLYCOL - A catalytic process for preparing a monoalkylene glycol from a corresponding alkylene oxide utilizing an ion exchange resin and a reactor in which an upflow process is used is provided. In particular, the process includes reacting water and an alkylene oxide in at least one reactor under conditions to form an alkylene glycol, wherein the at least one reactor includes an ion exchange resin and the reactor is operating in an upflow direction. | 12-04-2008 |
| 20090143627 | PROCESS FOR THE PREPARATION OF ALKYLENE GLYCOL - The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream. | 06-04-2009 |
| 20090253944 | Process for Preparing Alkylene Oxides - The invention provides a process for preparing ethylene oxide and/or propylene oxide by contacting ethylene and/or propylene with an oxidizing agent, wherein (i) the reaction takes place in a microreaction system (p-reactor) and (ii) the oxidizing agent used is a peroxo compound. | 10-08-2009 |
| 20090299104 | CATALYST FOR PARTIAL OXIDATION OF OLEFIN, PREPARATION METHOD THEREOF, AND PROCESS FOR PREPARING ALKYLENE OXIDE - A catalyst for partial oxidation of olefin, which comprises silver or silver oxide and an alkali metal or a compound thereof supported on an α-alumina carrier containing silicon or a compound thereof, wherein the silicon or the compound thereof exists at a position substantially identical to that of a particle of the alkali metal or the compound thereof, a preparation method thereof, and a process for preparing olefin oxide which comprises subjecting olefin to vapor-phase oxidation with a molecular oxygen-containing gas in the presence of the catalyst. | 12-03-2009 |
| 20100036176 | Two-Stage, Gas Phase Process for the Manufacture of Alkylene Glycol - A two-stage, gas phase process for manufacturing alkylene glycol (e.g., ethylene glycol) from an alkene (e.g., ethylene), oxygen and water, the process comprising the steps of:
| 02-11-2010 |
| 20100094065 | PROCESS FOR THE RECOVERY OF MONOETHYLENE GLYCOL - A process for recovering monoethylene glycol from a catalyst bleed stream is disclosed. The process comprises combining the catalyst bleed stream with a heavies stream comprising at least 40 wt % diethylene glycol, to provide a combined stream and distilling the combined stream to provide a first stream comprising monoethylene glycol and a second stream comprising diethylene glycol. | 04-15-2010 |
| 20110054224 | PROCESS FOR THE PREPARATION OF ALKYLENE GLYCOL - The invention provides a process for the preparation of an alkylene glycol from an alkene wherein conversion of alkylene oxide to alkylene glycol occurs in an alkylene oxide absorber and optionally in further reactors, and alkylene glycol is extracted from fat absorbent by contacting the fat absorbent with a lean solvent, thereby producing fat solvent, recovering alkylene glycol from the fat solvent and recycling the lean solvent. | 03-03-2011 |
| 20120302800 | METHOD OF MAKING GLYCEROL - Method of producing glycerol that includes mixing a peroxide stream with an olefenic alcohol stream to form a feed stream; processing the feed stream in a high shear device to produce a high shear dispersion of peroxide and olefinic alcohol, wherein the high shear device is configured with a rotor and a stator separated by a shear gap; and contacting the high shear dispersion with a catalyst in a reactor to produce glycerol. | 11-29-2012 |
| 20140058138 | PRODUCTION OF BUTANEDIOL FROM A METHANE CONVERSION PROCESS - Methods and systems are provided for converting methane in a feed stream to butanediol. The method includes processing acetylene as an intermediate stream to form a hydrocarbon stream including butanediol. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units. | 02-27-2014 |
| 20140135537 | PROCESS CONTROL WITH RAMAN SPECTROSCOPY - Embodiments of the present disclosure include methods of effecting process control in a reaction system for the production of 1,4-butanediol, the method including determining at least one property of a sample from the reaction system using Raman spectroscopy, and adjusting at least one parameter of the reaction system in response to the at least one determined property. Embodiments may also include methods of producing 1,4-butanediol, the method including reacting allyl alcohol with carbon monoxide and hydrogen in the presence of a solvent and a catalyst to produce a reactor fluid, sampling the reaction, determining at least one property of the sample using Raman spectroscopy, and adjusting the reaction in response to the at least one determined property. | 05-15-2014 |
| 20150087866 | PROCESS FOR THE PRODUCTION OF OLEFINS AND USE THEREOF - The present invention relates to the process of production of olefins by means of the dehydration of light alcohols using ionic liquids as an acidic medium. Furthermore, the present invention relates to the use of such olefins, for example, for the production of polymers and ethylene glycol. | 03-26-2015 |
