Shell Oil Comapny

Norton Chemical Process Products Corporation

Saint-gobain Ceramics & Plastics, Inc.

Norton Company

Saint-gobain Norpro Corporation

Shell Internationale Research Maatschappij, B.v.

Donald James Remus

Thomas Szymanski

William H Gerdes

John Robert Lockemeyer

Randall Clayton Yeates

Kenneth R Butcher

Michael Alan Richard

James A Wolford

William Herman Gerdes

John Robert Lockmeyer

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 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

The selectivity and activity of a silver-based olefin epoxidation catalyst is found to be a function of the pore size distribution in the alumina carrier on which it is deposited. Specifically it is found advantageous to provide a carrier which has a minimum of very large pores, (greater than 10 micrometers) and a water absorption of 35 to 55% and a surface area of at least 1.0 m /g. A method of making such carriers is also described.

Catalyst carriers

An improved catalyst carrier is formed by a process that comprises the use of ceramic particle components with particle sizes chosen to ensure that a desired degree of porosity is obtained without recourse to the use of organic burnout materials.

Method of making porous catalyst carrier without the addition of pore

A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process and titania has excellent crush resistance while retaining good porosity and catalytic performance.

Catalyst carrier

A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process has excellent crush resistance while retaining good porosity and catalytic performance.

Essentially spherical particles are disclosed of at least 98.5% alumina having a surface area less than about 1 m.sup.2 /g, an attrition resistance of less than about 0.3 weight percent/hour in an air jet attrition test, a particle size of about 30 to about 110 microns, a tap density of about 1.3 to about 1.9 g/cc, and sufficient porosity to hold catalytic metals in conventional catalytic amounts. The alumina particles are especially suited for use as fluid bed catalyst carriers for use in environments involving the presence of steam, particularly at high temperatures.

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Stow, OH, United States of America

Donald James Remus