摘要:
PROBLEM TO BE SOLVED: To provide a highly practical magnetic ion exchange material which is a magnetic ion exchange material having a high magnetic material content ratio and therefore easily collecting magnetism through action of an external magnetic field, and which can speedily attract a minute amount of ionic impurities included in various liquids, has high acid resistance, and can be easily produced by a safe method.SOLUTION: There is provided the magnetic ion exchange material having magnetic material particles and powdery ion exchange resin which are bound using aqueous resin emulsion or water-soluble resin made water-resistant.
摘要:
This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked gel. The invention also relates to a process for preparing the composite material described above, and to its use. The composite material is suitable, for example, for separation of substances, for example by filtration or adsorption, including chromatography, for use as a support in synthesis or for use as a support for cell growth.
摘要:
A flow-through ion exchange medium comprising a monolithic stationary phase having interconnecting pores defined by pore walls, and fine ion exchange polymeric layering particles irreversibly bound directly or indirectly to the pore walls, and methods of making such medium and its use on chromatographic separators.
摘要:
PROBLEM TO BE SOLVED: To provide a method for inhibiting nitrosamine formation in an anion exchange resin including a nitrosating agent and to provide the anion exchange resin produced thereby.SOLUTION: The method for inhibiting nitrosamine formation is provided which comprises providing the anion exchange resin including the nitrosating agent and applying an antioxidant to the resin to inhibit nitrosamine formation on the anion exchange resin. The anion exchange resin produced by the method is also provided.
摘要:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for satisfactorily determining the finish of a cleaning process of an ion exchange resin. SOLUTION: Valves 22B, 23B are closed and valves 2, 22A, 23A, 8 are opened. Ultrapure water flows into an ion exchange resin packed tower 3 to clean the ion exchange resin 3a. Silicon etching causative material such as amine contained in the ion exchange resin 3a is eluted in the ultrapure water. The cleaning liquid flows in a column 20A through the valve 22A to come into contact with a particle 21A of a silicon material. An organic material in the cleaning water is adsorbed on the surface of the particle 21A of the silicon material and hydrogen is released from the surface of the silicon surface. The hydrogen concentration in the cleaning water flowing out from the column 20A is measured using a hydrogen concentration meter 11. In a case that the maximum value is equal to or below a preliminarily set prescribed value, it is determined to finish the cleaning of the ion exchange resin 3a in a time point when the value reaches the maximum value or when a prescribed time elapses from the time point. COPYRIGHT: (C)2011,JPO&INPIT