Bayer Aktiengesellschaft

Lanxess Deutschland Gmbh

Other

Reinhold M Klipper

Michael Schelhaas

Pierre Vanhoorne

Ulrich Schnegg

Stefan Neumann

Wolfgang Podszun

Alfred Mitschker

Holger L&uuml;tjens

Peter M Lange

Wolfgang Zarges

Olaf Halle

Bernd Koop

Hans-Karl Soest

Bruno Hees

Georg Martin

Joachim Wolff

Bernhard Lehmann

Rudolf Wagner

Heiko Hoffmann

Jens Stoll

Jenny Barbier

Areski Rezkallah

Hans-Josef Buysch

Karlheinz Wolf

Harold Heller

Franz-Rudolf Minz

Ulrich Litzinger

Klaus Rall

Werner Str&uuml;ver

Werner Strüver

Rüdiger Seidel

Holger Lütjens

Duilio Rossoni

Reinhard Halpaap

Guido Steffan

Martin Brahm

Dieter Mager

Gerhard Fennhoff

Rainer Neumann

Michael Prein

Stefan Antons

Karsten Danielmeier

Heinrich Krimm

Frieder Heydenreich

Holger Lutjens

Udo Herrmann

Michael B&ouml;diger

Axel Ingendoh

Werner Struver

Peter Mues

Jochen Koll

Karl-Heinz Wolf

Tian Yang

Michael Happ

George L Dimotsis

Claudia Schmid

Wolfgang Wambach

Michael Holzbrecher

Dieter Mauer

R&uuml;diger Seidel

Andreas Hauner

Hubertus Mittag

Stefan Neufeind

Burkhard Brings

Sladjana Baljak

Martin Gladysch

Hans Karl Soest

Ralf-J&uuml;rgen Born

Plerre Vanhoorne

Hanfried Treffurth

Pavlos Makropoulos

Harald Leps

Maresa Schroeder

Maresa Schroder

Pavlos Markopoulos

Maresa SCHRÖDER

Tian Lei Yang

Wolfgang Zargas

The invention relates to a process for preparing aminomethylated bead polymers using condensed formaldehydes and carbonyl halides.

Method for producing amino methylated bead polymerizates

The present invention relates to aluminium-doped chelate resins containing iminoacetic acid groups, to a production process for aluminium-doped chelate resins containing iminoacetic acid groups, and to a device comprising at least one layer of at least one aluminium-doped chelate resin containing iminoacetic acid groups, and to the uses of this device and of the chelate resins for removal of fluoride from water.

Aluminum-doped, iminoacetic acid group-containing chelate resins

The invention relates to ion exchangers laden with transition metal hexacyanoferrate complexes, to processes for the production thereof and to the use of these ion exchangers for removal and purification of cesium ions.

Caesium selective resin

Aminomethylated bead polymers for use as ion exchangers, especially as anion exchangers, or for the preparation of chelate resins, are prepared in the presence of 1,3-dichloropropane as solvent and swelling agent.

Process for preparing aminomethylated bead polymers

The present invention relates to aluminum-doped chelate resins containing iminodiacetic acid groups, to a production process for aluminum-doped chelate resins containing iminodiacetic acid groups, and to a device comprising at least one layer of at least one aluminum-doped chelate resin containing iminodiacetic acid groups, and to the uses of this device and of the chelate resins for removal of fluoride from water.

Aluminum-doped, iminodiacetic acid group-containing chelate resins

The invention relates to a process for preparing aminomethylated bead polymers from N-carboxymethylphthalimides, which are used as anion exchangers or can be converted further to chelate resins.

Method for producing amino methylated bead polymerizates from N-carboxylic acid methylphthalimide esters

The invention relates to a process for preparing aminomethylated bead polymers using condensed formaldehydes and carboxylic anhydrides.

The invention relates to sulfonated aminomethylated chelate resins, to a method for producing same, to the use thereof for obtaining and purifying metals, in particular rare earth metals, from aqueous solutions and organic liquids, and for producing highly pure silicon.

Sulfonated aminomethylated chelate resins

The invention relates to a method of producing monodisperse amidomethylated vinylaromatic bead polymers, to ion exchangers prepared from these monodisperse amidomethylated vinylaromatic bead polymers by alkaline hydrolysis, to the method of using said monodisperse amidomethylated vinylaromatic bead polymers in the manufacture of ion exchangers and chelating resins, and also to the method of using these ion exchangers in the removal of heavy metals and noble metals from aqueous solutions or gases.

Method for producing monodisperse, amido-methylated vinyl-aromatic bead polymers

The present invention relates to chelating resins containing methyleneaminoethylsulfonic acid groups, a process for producing them and also their use for removing heavy metals or metals of value from aqueous solutions having a pH of &#x3c;4, preferably from process water in or from the electronics industry, the electroplating industry or the mining industry.

Methylene aminoethyl sulfonic acid chelating resins

The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, whereRis an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, Ris a radical &#x2014;(CH)&#x2014;COOR, Ris a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2, q is an integer from 1 to 5 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.

Picolylamine resins

The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where or derivatives thereof or &#x2014;C&#x2550;S(NH),

The present invention relates to a method of producing novel chelate resins based on crosslinked polymer beads starting with methacrylic compounds, containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups, that have a high uptake capacity for heavy metals and rapid kinetics.

Method for producing chelate resins

The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having aminomethylphosphonic acid groups and iminodimethylphosphonic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, and a markedly lengthened loading duration of the chelating resin, to the chelating exchangers themselves, and also to uses thereof.

Method for improved removal of cations by means of chelating resins

The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having acetic acid and/or iminodiacetic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, to the chelating exchangers themselves, and also to uses thereof.

Growing community of inventors

Cologne, Germany

Reinhold M Klipper