Separation of organic compounds from mixtures by clathration

Details Separation of organic compounds from mixtures by clathration Separation of organic compounds from mixtures by clathration

1978-03-31

1979-04-03

Vertiz, O. R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 700

Patent

active

041477359

ABSTRACT:
A method for the separation of organic compounds by clathration in which there is used as a host a compound of formula I: ##STR1## wherein: Ar.sup.1 Ar.sup.2 and Ar.sup.3 and Ar.sup.4, which may be identical or different, represent aromatic groups; X and Y, which may be identical or different, represent P, As or Sb or P, As or Sb to which O, S or Se are bound; R represents a bond joining X and Y, a substituted or unsubstituted alkylene group, a substituted or unsubstituted arylene group, a substituted or unsubstituted alkenylene group or a substituted or unsubstituted alkynylene group. The compound of formula I in which Ar.sup.1 -Ar.sup.4 represent phenyl, X and Y each represent P.dbd.Se and R represents --(CH.sub.2).sub.2 -- is particularly useful for the clathration of p-xylene.

REFERENCES:
patent: 2926206 (1960-02-01), Schaeffer et al.
patent: 3426068 (1969-02-01), Coscia
"Clathration of Hard-To-Separate Aromatic Mixtures with New Werner Complexes" by Radzitsky et al., I&EC Process Design and Development, vol. 1, No. 1 (Jan. 1962), pp. 10-14.

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