Method of largely eliminating volume change in a resin bed due t

Details Method of largely eliminating volume change in a resin bed due t Method of largely eliminating volume change in a resin bed due t

1974-12-10

1976-08-17

Schofer, Joseph L.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

260 21C, 260 22C, 260838, B01D 1504, B01J 104

Patent

active

039752682

ABSTRACT:
A method of bringing at least two liquids of different pH values into contact with a synthetic resin and substantially eliminating volume changes in the resin bed due to changes in the pH of the liquid phase, is provided wherein the resin is made up of a mixture of at least two different resins, the volumes of which depend on the pH of the liquid phase in which the resin is located, a first resin being one having its maximum volume when located in an acid environment and its minimum volume when located in an alkaline environment, a second resin being one having its minimum volume when located in an acid environment and its maximum volume when located in an alkaline environment, the ratio of the two resins in the mixture being such that volume changes in each resin resulting from changes in the pH of their environment substantially compensate one another so that the resin mixture maintains a substantially uniform volume in acid and alkaline environments.

REFERENCES:
patent: 2710254 (1955-06-01), Van Biaricom et al.
patent: 2732352 (1956-06-01), Blaricon et al.
patent: 3420709 (1969-01-01), Barrett, Jr. et al.
patent: 3645922 (1972-02-01), Weiss et al.
patent: 3652407 (1972-03-01), Paleos
patent: 3853758 (1974-12-01), Hurwitz et al.
patent: RE24213 (1956-09-01), Van Biaricom et al.
"Duolite A-4F" Diamond Shamrock Co. 3/17/71 Bulletin 23.

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