Patent application number | Description | Published |
20100160671 | Processes for Producing an Oxalate by Coupling of CO - Provided are processes for producing an oxalate by coupling of CO in the presence of a nitrite, wherein two or more reaction zones in series are used, and at least a portion of the oxalate as reaction product is separated between the reaction zones, and/or the nitrite is fed stagewise. The processes described herein can effectively enhance the selectivity to the oxalate and the single-pass conversion of the feedstock. | 06-24-2010 |
20100179356 | PROCESSES FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE(S) - Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts. | 07-15-2010 |
20110257424 | Process for Producing C1-C4 Alkyl Nitrite - A process of producing C | 10-20-2011 |
20110308999 | METHOD FOR SELECTIVE HYDROGENATION OF PHENYLACETYLENE IN THE PRESENCE OF STYRENE - The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene, comprising contacting a phenylacetylene and styrene-containing hydrocarbon fraction feedstock with a carbon-containing catalyst under hydrogenation reaction conditions, wherein the carbon-containing catalyst has a carbon content of from 0.02 to 8 wt % based on the weight of the catalyst. | 12-22-2011 |
20130079549 | PROCESS OF PRODUCING OXALATE BY CO GAS PHASE METHOD - A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C | 03-28-2013 |
20130331617 | METHOD FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE THROUGH THE FLUIDIZED BED CATALYTIC REACTION - A process for producing ethylene glycol includes contacting an oxalate with a fluidized bed catalyst under the following conditions: a reaction temperature of from about 170 to about 270° C., a weight space velocity of oxalate of from about 0.2 to about 7 hours | 12-12-2013 |
20130331618 | METHOD FOR IMPROVING THE QUALITY OF ETHYLENE GLYCOL PRODUCTS - A method for improving the quality of ethylene glycol products, which mainly solves the technical problem of low UV-light transmittance of the ethylene glycol products present in the prior art. The method successfully solves the problem by use of the technical solution wherein the ethylene glycol raw material and hydrogen are passed through a rotating packed bed reactor loaded with solid oxide catalyst at a temperature of about 20 to about 280 ° C., a pressure of about 0.1 to about 4.0 MPa, a space velocity of about 0.2 to about 100.0 hr | 12-12-2013 |
20130338406 | METHOD FOR THE PRODUCTION OF ETHYLENE GLYCOL - The present invention relates to a method for the production of ethylene glycol using a feedstock comprising an oxalate and a catalyst containing copper and/or a copper oxide, comprising contacting the feedstock with the catalyst in a reactor under the conditions of a temperature in the range from about 170 to about 270° C., a weight hourly space velocity of the oxalate in the range from about 0.2 to about 5 h | 12-19-2013 |