Process for separating a substance from a liquid medium containi

Details Process for separating a substance from a liquid medium containi Process for separating a substance from a liquid medium containi

1974-05-29

1978-05-16

Spear, Jr., Frank A.

Liquid purification or separation

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

Responsive to fluid flow

210433M, B01D 1300

Patent

active

040897788

ABSTRACT:
Into a liquid medium consisting of a solvent having dissolved therein a substance (solute) which is to be separated from the liquid medium, there is introduced a macromolecular substance capable of selectively fixing the molecules of the substance to be separated. The macromolecular substance forms, before and after fixing the substance to be separated, a homogeneous liquid phase in admixture with the liquid medium. After allowing the substance to be fixed by the molecules of the macromolecular substance, the liquid medium thus obtained is passed through a semipermeable ultrafiltration membrane which retains the associations of molecules formed between the macromolecular substance and the substance to be separated but allows the molecules of the solvent to pass through.

REFERENCES:
patent: 3519558 (1970-07-01), Cooper et al.
patent: 3630937 (1971-12-01), Baum et al.
patent: 3836200 (1974-09-01), Booth
patent: 3839206 (1974-10-01), Welch

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