It is provided a process of removing iodides from an non-aqueous organic media comprising providing a weak base anion exchange adsorbent; and passing the organic media containing iodides through the adsorbent thereby removing the iodide from said organic media.

The invention relates to a process for desorbing carbon dioxide from polymeric organic anion exchangers having primary and/or secondary amine groups, to which the carbon dioxide is bound in the form of carbamate, by means of heating through microwave radiation.

The invention relates to a process for desorbing carbon dioxide from polymeric organic anion exchangers having primary and/or secondary amine groups, to which the carbon dioxide is bound in the form of carbamate, by means of heating through microwave radiation.

A method for purifying a nonaqueous liquid substance includes: filling a cartridge container with a macroporous or porous type ion exchange resin in a water-wet state to obtain an ion exchange resin-filled cartridge filled with the macroporous or porous type ion exchange resin before water content reduction; reducing a water content of the macroporous or porous type ion exchange resin in the cartridge container until a water content (A) of the macroporous or porous type ion exchange resin after water content reduction becomes 90 to 97% of a water content (B) of the macroporous or porous type ion exchange resin in a saturated equilibrium state; an initial blowing step of allowing the nonaqueous liquid substance before being purified to pass inside the cartridge container filled with the macroporous or porous type ion exchange resin after water content reduction and discharging an initial blow effluent from inside the cartridge container; and purification.

Crosslinked membranes for anion exchange applications, and methods of making and using the same, are described.

A bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are joined to each other, wherein a leakage ratio of gluconic acid at 60° C. is not more than 1.0%, and the cation-exchange membrane is supported by a polyolefin reinforcing member and, further, contains a polyvinyl chloride.

A bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are joined to each other, wherein a leakage ratio of gluconic acid at 60° C. is not more than 1.0%, and the cation-exchange membrane is supported by a polyolefin reinforcing member and, further, contains a polyvinyl chloride.

An anion-exchange membrane of the present invention includes a substrate made of polyolefin-based woven fabric and an anion-exchange resin, and has an electrical resistance measured using 0.5 M NaCl solution at 25° C. of 1.0 Ω•cm.sup.2 or more to 2.5 Ω•cm.sup.2 or less, a bursting strength of 0.7 MPa or more to 1.2 MPa or less, a water permeation rate measured using pressured water at 0.1 MPa of 300 ml/(m.sup.2•hr) or less, a thickness of the substrate of 90 .Math.m or more to 160 .Math.m or less, and an open area ratio of the substrate of 35% or more to 55% or less.

An anion-exchange membrane of the present invention includes a substrate made of polyolefin-based woven fabric and an anion-exchange resin, and has an electrical resistance measured using 0.5 M NaCl solution at 25° C. of 1.0 Ω•cm.sup.2 or more to 2.5 Ω•cm.sup.2 or less, a bursting strength of 0.7 MPa or more to 1.2 MPa or less, a water permeation rate measured using pressured water at 0.1 MPa of 300 ml/(m.sup.2•hr) or less, a thickness of the substrate of 90 .Math.m or more to 160 .Math.m or less, and an open area ratio of the substrate of 35% or more to 55% or less.

Provided is a resin composition used for forming a laminated glass interlayer film or a solar cell encapsulant, the resin composition including an ionomer (A) of an ethylene-unsaturated carboxylic acid-based copolymer, wherein metal ions constituting the ionomer (A) of the ethylene-unsaturated carboxylic acid-based copolymer includes two or more kinds of polyvalent metal ions.