The invention relates to mixtures containing basic anion exchangers and flow regulators, the use thereof for the adsorption of acidic gases and of carbon dioxide in particular, a process for continuous gas adsorption, and heat exchangers that contain the mixtures containing basic anion exchangers and flow regulators.

A vitamin E production method and a vitamin E production device which can highly purify vitamin E in a vitamin E concentrated fraction are provided. A raw oil supply section supplies a raw oil to a series column in which two or more columns including a strongly basic anion exchanger are coupled in series to adsorb vitamin E included in the raw oil on the strongly basic anion exchanger of at least one column from among the series column. A desorption solution supply section supplies a desorption solution to a column on which vitamin E has been adsorbed to desorb vitamin E from the strongly basic anion exchanger of the column.

A vitamin E production method and a vitamin E production device which can highly purify vitamin E in a vitamin E concentrated fraction are provided. A raw oil supply section supplies a raw oil to a series column in which two or more columns including a strongly basic anion exchanger are coupled in series to adsorb vitamin E included in the raw oil on the strongly basic anion exchanger of at least one column from among the series column. A desorption solution supply section supplies a desorption solution to a column on which vitamin E has been adsorbed to desorb vitamin E from the strongly basic anion exchanger of the column.

An anion exchange for separating a plurality of carbohydrates includes a negatively charged substrate particle. A base polymer layer includes a first plurality of quaternary amines. The polyalkylpolyamine polymer layer is covalently attached to the base condensation polymer layer. The polyalkylpolyamine polymer layer includes a polymeric branch structure that includes a second plurality of quaternary amines. A density of the second plurality of quaternary amines increases in a direction away from the base condensation polymer layer. The anion exchange stationary phase does not have a hydroxy group spaced apart from any one of the first or the second plurality of quaternary amines by an ethyl group.

Provided is a method of forming a filter module. The method includes: forming a non-pore ion-exchange membrane including: preparing a mixed solution of a polymer material and an ion-exchange material; and electrospraying the mixed solution to obtain the non-pore ion-exchange membrane; and interposing the non-pore ion-exchange membrane between a first polymer nanofiber web and a second polymer nanofiber web to form the filter module.

Provided is a method of forming a filter module. The method includes: forming a non-pore ion-exchange membrane including: preparing a mixed solution of a polymer material and an ion-exchange material; and electrospraying the mixed solution to obtain the non-pore ion-exchange membrane; and interposing the non-pore ion-exchange membrane between a first polymer nanofiber web and a second polymer nanofiber web to form the filter module.

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

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

Methods for removing an oxyanion from an aqueous source containing said oxyanion, comprising contacting said aqueous source with an aqueous-insoluble hydrophobic solution containing an oxyanion extractant compound dissolved in an aqueous-insoluble hydrophobic solvent to result in formation of an oxyanion salt of said extractant compound and extraction of said oxyanion salt into said aqueous-insoluble hydrophobic solution, wherein said extraction results in an extraction affinity (D) of said oxyanion of at least 1, wherein D is the concentration ratio of said oxyanion in the organic phase divided by the concentration of said oxyanion in the aqueous phase; wherein said extractant compound has the following composition: ##STR00001##
wherein at least one of R.sup.1-R.sup.10 is or contains a hydrocarbon (R) group containing at least 4, 5, 6, 7, 8, 9, 10, 11, or 12 carbon atoms.

Methods for removing an oxyanion from an aqueous source containing said oxyanion, comprising contacting said aqueous source with an aqueous-insoluble hydrophobic solution containing an oxyanion extractant compound dissolved in an aqueous-insoluble hydrophobic solvent to result in formation of an oxyanion salt of said extractant compound and extraction of said oxyanion salt into said aqueous-insoluble hydrophobic solution, wherein said extraction results in an extraction affinity (D) of said oxyanion of at least 1, wherein D is the concentration ratio of said oxyanion in the organic phase divided by the concentration of said oxyanion in the aqueous phase; wherein said extractant compound has the following composition: ##STR00001##
wherein at least one of R.sup.1-R.sup.10 is or contains a hydrocarbon (R) group containing at least 4, 5, 6, 7, 8, 9, 10, 11, or 12 carbon atoms.