Abstract: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

Abstract: The subject of the present invention is a method for refining of polyols, preferably glycerol, by means of monodispersed ion exchangers in a purification unit of ion exclusion process and a mixed bed.

Abstract: The present invention relates to mixtures of substances based on organopolysiloxane polyethers and at least one further substance or component, preferably a polymer obtained from aqueous suspension, particularly preferably crosslinked functionalized polystyrene polymer beads, and also to the use of such mixtures of substances based on organopolysiloxane polyether together with crosslinked functionalized polystyrene polymer beads as free-flowing ion exchangers or free-flowing adsorbers, particularly preferably free-flowing monodisperse or heterodisperse anion exchangers or cation exchangers, but also free-flowing mixtures of anion and cation exchangers.

Abstract: A process for the purification of crude glycerin utilizing ion exclusion chromatography fractionation, and one or more dewatering steps under moderate temperatures and pressures.

Abstract: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

Abstract: The subject of the present invention is a method for refining of polyols, preferably glycerol, by means of monodispersed ion exchangers in a purification unit of ion exclusion process and a mixed bed.

Abstract: The present invention relates to a process for producing novel monodisperse cation exchangers of the poly(meth)acrylic acid type, the ion exchangers themselves, and also use thereof and to the use of intermediate products as supports for enzymes and the systems resulting therefrom as enzyme catalysts for the preparation of fuels and in transesterification reactions and esterification reactions.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: The present invention relates to mixtures of substances based on organopolysiloxane polyethers and at least one further substance or component, preferably a polymer obtained from aqueous suspension, particularly preferably crosslinked functionalized polystyrene polymer beads, and also to the use of such mixtures of substances based on organopolysiloxane polyether together with crosslinked functionalized polystyrene polymer beads as free-flowing ion exchangers or free-flowing adsorbers, particularly preferably free-flowing monodisperse or heterodisperse anion exchangers or cation exchangers, but also free-flowing mixtures of anion and cation exchangers.

Abstract: The present invention relates to a process for decolorizing sugar juices by means of monodisperse ion exchangers, preferably anion exchangers, and the use of the same for sugar juice decolorization.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: The present invention relates to a process for preparing novel, monodisperse anion exchangers having strongly basic functional groups either in the center of the resin particle or in the shell of the resin particle, as well as to their use.

Abstract: The present invention relates to a process for preparing crosslinked ion exchangers with a homogeneous network structure based on unsaturated aliphatic nitriles in the presence of film-forming protective colloids.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: The present invention relates to a process for decolorizing sugar juices by means of monodisperse ion exchangers, preferably anion exchangers, and the use of the same for sugar juice decolorization.

Abstract: The present invention relates to a process for preparing monodisperse ion exchangers having polyiodide groups, the resins themselves and their use for drinking water treatment and drinking water disinfection.

Abstract: The present invention relates to a process for preparing crosslinked ion exchangers with a homogeneous network structure based on unsaturated aliphatic nitrites in the presence of film-forming protective colloids.

Abstract: A process for the preparation of a bifunctional anion exchange resin by partial quaternization of a weakly basic anion exchanger containing tertiary amino groups which process comprises (a) partially loading the weakly basic anion exchanger with a strong acid and (b) quaternizing the partially loaded anion exchanger by means of a customary alkylating agent.