Patent application number | Description | Published |
20090131695 | Catalyst, a process for preparing the catalyst and a process for the production of an olefin oxide, a 1,2-diol, a 1,2 diol ether, or an alkanolamine - A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1.3 m | 05-21-2009 |
20090177016 | CATALYST AND PROCESS USING THE CATALYST - A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1 m | 07-09-2009 |
20090264678 | CARRIER, A PROCESS FOR PREPARING THE CARRIER, AN OLEFIN EPOXIDATION CATALYST, A PROCESS FOR PREPARING THE CATALYST, AND A PROCESS FOR THE PRODUCTION OF AN OLEFIN OXIDE, A 1,2-DIOL, A 1,2-DIOL ETHER, OR AN ALKANOLAMINE - A carrier that may be used in the manufacture of an olefin epoxidation catalyst is provided that is prepared from a process involving depositing boron on the carrier and subsequently calcining the carrier. Also provided is an olefin epoxidation catalyst comprising a silver component deposited on such a calcined carrier. Also provided is a process for the epoxidation of an olefin employing such a catalyst and a process for producing a 1,2-diol, a 1,2-diol ether, or an alkanolamine employing the olefin oxide. | 10-22-2009 |
20090275764 | OLEFIN EPOXIDATION PROCESS, A CATALYST FOR USE IN THE PROCESS, A CARRIER FOR USE IN PREPARING THE CATALYST, AND A PROCESS FOR PREPARING THE CARRIER - A process is provided for preparing a carrier which process comprises incorporating into the carrier at any stage of the carrier preparation a strength-enhancing additive. Also provided is the resultant carrier having incorporated therein a strength-enhancing additive and a catalyst comprising the carrier. Also provided is a process for the epoxidation of an olefin employing the catalyst. Also provided is a method of using the olefin oxide so produced for making a 1,2-diol, a 1,2-diol ether or an alkanolamine. | 11-05-2009 |
20100160655 | METHOD FOR IMPROVING THE SELECTIVITY OF A CATALYST AND A PROCESS FOR THE EPOXIDATION OF AN OLEFIN - A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m | 06-24-2010 |
20120065433 | PROCESS FOR THE PRODUCTION OF A 1,2-DIOL, A 1,2-DIOL ETHER, OR AN ALKANOLAMINE - A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1.3 m2/g, a median pore diameter of more than 0.8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 μm and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 μm is contained in pores with diameters in the range of from 0.3 to 10 μm; process for the preparation of a catalyst which process comprises depositing silver on a carrier, wherein the carrier has been obtained by a method which comprises forming a mixture comprising: a) from 50 to 95 weight percent of a first particulate a-alumina having a median particle size (d50) of from 5 to 100 μm; b) from 5 to 50 weight percent of a second particulate a-alumina having a d50 which is less than the d50 of the first particulate a-alumina and which is in the range of from 1 to 10 μm; and c) an alkaline earth metal silicate bond material; weight percent being based on the total weight of a-alumina in the mixture; and firing the mixture to form the carrier; a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a said catalyst; and a process for preparing a 1,2-diol, a 1,2-diol ether or an alkanolamine. | 03-15-2012 |
20120136166 | PROCESS FOR THE PRODUCTION OF AN OLEFIN OXIDE - The invention provides a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a catalyst comprising a carrier and silver deposited on the carrier, which carrier comprises at least 85 weight percent α-alumina and has a surface area of at least 1.3 m | 05-31-2012 |
20120226057 | OLEFIN EPOXIDATION PROCESS, A CATALYST FOR USE IN THE PROCESS, A CARRIER FOR USE IN PREPARING THE CATALYST, AND A PROCESS FOR PREPARING THE CARRIER - A process is provided for preparing a carrier which process comprises incorporating into the carrier at any stage of the carrier preparation a strength-enhancing additive. Also provided is the resultant carrier having incorporated therein a strength-enhancing additive and a catalyst comprising the carrier. Also provided is a process for the epoxidation of an olefin employing the catalyst. Also provided is a method of using the olefin oxide so produced for making a 1,2-diol, a 1,2-diol ether or an alkanolamine. | 09-06-2012 |
20120323026 | EPOXIDATION CATALYST, A PROCESS FOR PREPARING THE CATALYST, AND A PROCESS FOR THE PRODUCTION OF AN OLEFIN OXIDE - A catalyst for the epoxidation of an olefin comprising a carrier and, deposited thereon, silver, a rhenium promoter, a first co-promoter, and a second co-promoter; wherein
| 12-20-2012 |
20130289288 | PROCESS FOR TREATING A CARRIER, A PROCESS FOR PREPARING A CATALYST, THE CATALYST, AND USE OF THE CATALYST - A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof. | 10-31-2013 |