Shell Oil Comapny

Saint-gobain Ceramics & Plastics, Inc.

Shell Usa, Inc.

Cri International, Inc.

Saint-gobain Norpro Corporation

Shell Internationale Research Maatschappij, B.v.

John Robert Lockemeyer

Randall Clayton Yeates

Marek Matusz

Thomas Szymanski

William H Gerdes

Donald James Remus

Michael Alan Richard

Donald Reinalda

Dominicus Maria Rekers

Alouisius Nicolaas Renée Bos

Wayne Errol Evans

Michael F Lemanski

James D Seamans

Paul Michael McAllister

Arend Jan Te Raa

Thijs Wermink

John Alexander Partin

Edward Roy Samonte

Jian Lu

Nga Thi-Huyen Vi

Robert Lewis Paddock

Alouisius Nicolaas Bos

Michael A Richard

William Herman Gerdes

Alouisius Nicolaas Renee Bos

Methods for conditioning an ethylene epoxidation catalyst are provided. The conditioning methods comprise contacting an ethylene epoxidation catalyst comprising a carrier, having silver and a rhenium promoter deposited thereon, with a conditioning feed gas comprising oxygen for a period of time of at least 2 hours at a temperature that is above 180&#xb0; C. and at most 250&#xb0; C., wherein the contacting of the ethylene epoxidation catalyst with the conditioning feed gas occurs in an epoxidation reactor and in the absence of ethylene. Associated methods for the epoxidation of ethylene are also provided.

Methods for conditioning an ethylene epoxidation catalyst and associated methods for the production of ethylene oxide

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m/g) no greater than 0.50 g/m. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt/%, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.

Catalyst for the epoxidation of oelfins

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m/g) no greater than 0.50 g/m. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt %, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.

Catalyst and catalyst carrier

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.

Process for treating a carrier, a process for preparing a catalyst, the catalyst, and use of the catalyst

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

Epoxidation catalyst, a process for preparing the catalyst, and a process for the production of an olefin oxide

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.

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 for treating a carrier, or a precursor thereof, to at least partly remove impurities comprising contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt; a process for preparing a catalyst; the catalyst; a process for preparing an olefin oxide by reacting an olefin with oxygen in the presence of the catalyst; and a process for preparing a 1,2-diol, a 1,2-diol ether or an alkanolamine.

A process for preparing a 1,2-diol, a 1,2-diol ether or an alkanolamine comprising converting an olefin oxide, wherein the olefin oxide has been obtained by a process for the epoxidation of an olefin, said process comprising using a catalyst comprising a carrier and silver deposited thereon, wherein the carrier comprises at least 85 weight percent &#x3b1;-alumina and has a surface area of at least 1.3 m/g, a median pore diameter of more than 0.8 &#x3bc;m, and a pore size distribution wherein at least 80% of the total pore is contained in pores with diameters in the range of from 0.1 to 10 &#x3bc;m, and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 &#x3bc;m is contained in pores with diameters in the range of from 0.3 to 10 &#x3bc;m.

Process for the production of a 1,2-diol, a 1,2-diol ether, or an alkanolamine

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 &#x3b1;-alumina and has a surface area of at least 1.3 m/g, a median pore diameter of more than 0.8 &#x3bc;m, 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 &#x3bc;m and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 &#x3bc;m is contained in pores with diameters in the range of from 0.3 to 10 &#x3bc;m.

Process for the production of an olefin oxide

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 msurface area of the support, which method comprises

Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin

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 &#x3bc;m, 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 &#x3bc;m and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 &#x3bc;m is contained in pores with diameters in the range of from 0.3 to 10 &#x3bc;m; 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 &#x3bc;m; 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 &#x3bc;m; 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.

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, which comprises non-platelet alumina and/or a bond material, has a surface area of at least 1.3 m/g, a total pore volume and a pore size distribution such that at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 &#x3bc;m, and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 &#x3bc;m is contained in pores with diameters in the range of from 0.3 to 10 &#x3bc;m, and a process for the preparation of a carrier which comprises forming a mixture comprising:

Catalyst carrier and a process for preparing the catalyst carrier

There is provided a catalyst carrier comprising a refractory inorganic material having a sodium solubilization rate no greater than 5 ppmw/5 minutes. There is further a catalyst comprising a refractory inorganic material carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and one or more catalytically reactive metals deposited on said carrier. There is also provided a catalyst suitable for the vapor phase production of alkylene oxide from olefins and oxygen comprising an alumina-based carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and catalytically reactive silver deposited on said carrier.

Catalyst composition

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.

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

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Sugar Land, TX, United States of America

John Robert Lockemeyer