Basf Se Corporation

Exxonmobil Chemical Patents Inc.

Basf Aktiengesellschaft

Filip Mees

Matthias Weismantel

Etienne F Vansant

Rüdiger Funk

Marcel Johannes Janssen

Uwe Stueven

Karl J Possemiers

Kun Wang

Guang Cao

Luc R M Martens

Richard B Hall

Dominicus Van Esbroeck

Luc Roger Marc Martens

An Verberckmoes

Leo Van Miert

Claus Hechler

Wilfried Heide

Oskar Stephan

Monte Alan Peterson

Ronny De Kaey

Karl Possemiers

Michael De Marco

John Perry Guentzel

Meinhard Nitschke

Koen Deboel

Justin Martin

Marc Gerardus Nicolas Grimmon

Maarten Vanbel

Stijn Verbert

Gijs Vanhoutte

Ward Brullot

Michael Marco

The present disclosure relates to a method of predicting physical properties, in particular performance parameters, of superabsorbent polymers.

Prediction of physical properties of superabsorbent polymers

A process for continuously classifying water-absorbing polymer beads by means of at least one screen, at least one screen having at least one guide device on the screen surface.

Method for the classification of water absorbent polymer particles

The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.

Process for producing water-absorbing polymer particles

A process for continuously producing water-absorbing polymer particles, wherein the monomer stems from at least two different sources and the monomer from one source differs from the monomer from at least one other source in the content of at least one secondary component.

Method for the production of water-absorbing polymer particles

The invention relates to a neutralization process in which at least one ethylenically unsaturated carboxylic acid is preneutralized at least partly with a base, wherein the preneutralized solution is divided into at least two part-solutions and at least one part-solution is aftertreated so as to form part-solutions with different degree of neutralization and/or solids content, and also to an apparatus for carrying out the process.

Neutralization process

A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (), wherein the solid additive and a gas volume flow are fed to the conveying screw () by means of an addition channel ().

Method for producing water-absorbing polymer particles

A process for continuously preparing water-absorbing polymer beads by determining at least one particulate delivery material mass flow by means of incident electromagnetic waves.

Method for the continuous production of water-absorbent polymer particles

A process for classifying water-absorbing polymer beads, wherein screens having different mesh sizes are used before and after the postcrosslinking to remove the oversize.

Method for grading water-absorbent polymer particles

The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

Stabilization of acid catalysts

The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a compound containing at least one M-X group within the cages of said microporous molecular sieve; and b) reacting said compound containing at least one M-X group with the acid groups located in the cages of the molecular sieve, wherein the compound containing at least one M-X group is selected from the group consisting of compounds of formula MX, compounds of formula MX, and mixtures thereof, M being a metal belonging to Group 13 of the Periodic Table, and each X independently being a hydrogen or halogen atom. Preferably, X is a hydrogen atom. The present invention also relates to modified metalloaluminophosphate molecular sieves, preferably modified silicoaluminophosphate molecular sieves, as well as to the use of these modified molecular sieves in catalytic processes, such as processes for the conversion of oxygenated hydrocarbon feedstocks.

Modified metalloaluminophosphate molecular sieves

The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds having a kinetic diameter greater than the average pore size of the activated molecular sieve and selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

Treatment of acid catalysts

The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

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Grobbendonk, Belgium

Filip Mees