摘要:
The invention relates to a simple method of purifying water loaded with heavy metals in the form of anions. The inventive method is based on the use of a composition containing at least one polysaccharide, such as starches or vegetable gums.
摘要:
A novel biocompatible anion exchange membrane is prepared by reacting the hydroxyl groups of a chromatographic support material, the support material is comprised of a blend of 45 % polyester and 55 % cellulose, with a solution containing glycidyl trimethyl ammonium chloride and bis glycidyl polyethylene oxide.
摘要:
Provided is a manufacturing method for monolithic structure that is a porous body formed of polysaccharide being a naturally-occurring polymer, has continuous pores with an average pore diameter suitable for biomolecule separation, and allows formation into arbitrary shape. The polysaccharide monolithic structure is manufactured by a method including a first step of obtaining a polysaccharide solution by dissolving polysaccharide into a mixed solvent of a first component and a second component at temperature lower than a boiling point of the mixed solvent, and a second step of obtaining polysaccharide monolithic structure by cooling the polysaccharide solution, wherein the first component is a solvent selected from lactate, and the second component is a solvent selected from water, lower alcohol, and a combination thereof. The monolithic structure obtained is a porous body having continuous pores with an average pore diameter of 0.01 to 20.0 micrometers, and a thickness of 100 micrometers or more.
摘要:
Disclosed is a pre-treated ion exchange resin comprising at least 15% by total number of exchangeable groups comprising at least one of an ion, or a Lewis acid, or a Lewis base resulting from a heat transfer fluid component having a pKa or pKb of greater than 5 in an aqueous solution at 25 °C, based on the total number of exchangeable groups. In one embodiment, the heat transfer fluid component is at least one of a colorant, a corrosion inhibitor, an antifoaming agent, a bitterant, a dispersant, or a combination thereof. In one embodiment, the heat transfer fluid component comprises a heat transfer fluid corrosion inhibitor. Also disclosed are heat transfer systems, assemblies, fuel cell systems and methods of maintaining a conductivity of less than 200 µS/cm in a heat transfer fluid that employ the disclosed pre-treated ion exchange resins.
摘要:
The invention relates to a method for producing cellulose shaped bodies according to the viscose method, said bodies containing a material with ion-exchanging characteristics, which is added to the spinning solution and/or to a precursor thereof. The inventive method is characterised in that the material is added in the form of a dispersion of particles with a maximum grain size of 20 µm.
摘要:
Disclosed is a pre-treated ion exchange resin comprising at least 15% by total number of exchangeable groups comprising at least one of an ion, or a Lewis acid, or a Lewis base resulting from a heat transfer fluid component having a pK a or pK b of greater than 5 in an aqueous solution at 25 °C, based on the total number of exchangeable groups. In one embodiment, the heat transfer fluid component is at least one of a colorant, a corrosion inhibitor, an antifoaming agent, a bitterant, a dispersant, or a combination thereof. In one embodiment, the heat transfer fluid component comprises a heat transfer fluid corrosion inhibitor. Also disclosed are heat transfer systems, assemblies, fuel cell systems and methods of maintaining a conductivity of less than 200 µS/cm in a heat transfer fluid that employ the disclosed pre-treated ion exchange resins.
摘要:
Porous fine cellulose particles advantageously usable as fine particles of ion-exchange cellulose and affinity carriers, and a process for their production are disclosed. The fine particles have such an excellent pressure resistance that they can treat an untreated solution under pressure at a high flow rate, thus being industrially usable in various separation and purification steps.