Patent application number | Description | Published |
20120065055 | SUPPORT FOR SILVER CATALYST IN ETHYLENE OXIDE PRODUCTION, METHODS FOR PREPARING THE SAME, SILVER CATALYST PREPARED THEREFROM, AND USE THEREOF - The present invention relates to a support for silver catalyst used in the ethylene oxide production, a preparation method for the same, a silver catalyst prepared from the same, and its use in the ethylene oxide production. The silver catalyst produced from the silver catalyst support has an improved activity, stability and/or selectivity in the production of ethylene oxide by epoxidation of ethylene. | 03-15-2012 |
20120083613 | ALUMINA SUPPORT FOR SILVER CATALYST, PREPARATION AND USE THEREOF - The present invention relates to an alumina support for silver catalyst, a process for preparing said alumina support, a silver catalyst made from said alumina support, and a use of said silver catalyst in the production of ethylene oxide by the oxidization of ethylene. According to the present invention, the silver catalyst made from the support prepared by potassium melt technology can have a high selectivity. | 04-05-2012 |
20120108832 | ALUMINA SUPPORT, A PROCESS FOR PREPARING THE SUPPORT, A SILVER CATALYST PREPARED FROM THE SUPPORT, AND USE THEREOF - An alumina support comprises alpha-alumina as the main crystal phase of its backbone, and having a specific surface area of no higher than 3.0 m | 05-03-2012 |
20120172608 | CARRIER FOR SILVER CATALYST, ITS PREPARATION, A SILVER CATALYST MADE FROM THE SAME AND ITS USE - The present invention discloses an alumina carrier for a silver catalyst, a process for preparing the alumina carrier, a silver catalyst made from the alumina carrier, and a use of the silver catalyst in the production of ethylene oxide by the oxidization of ethylene. The alumina carrier comprises alumina and promoters, as well as titanium silicate molecular sieve(s); and therefore, has an improved catalytic activity. | 07-05-2012 |
20150119590 | ALUMINA CARRIER, METHOD OF PREPARING THE SAME, AND SILVER CATALYST - The present disclosure discloses an α-alumina carrier, comprising the elements of lanthanum and silicon both dispersed in the interior and on the surface of the carrier. The mass ratio of the element of lanthanum to the element of silicon is in the range from 0.1:1 to 20:1. The inventors of the present disclosure have made extensive researches into the field of the silver catalyst and alumina carrier thereof, and added the elements of lanthanum and silicon (i.e., bulk phase addition) in preparing the alumina carrier used in the silver catalyst. The carrier thus obtained contains the elements of silicon and lanthanum both in the interior and on the surface thereof, and has improved specific surface area and strength. The silver catalyst prepared with the carrier can react in a low reaction temperature (has a high reaction activity) and has a high selectivity in producing ethylene oxide through oxidation of ethylene. | 04-30-2015 |