Process for the separation of 1,3-butadiene by selective adsorpt

Details Process for the separation of 1,3-butadiene by selective adsorpt Process for the separation of 1,3-butadiene by selective adsorpt

1975-10-09

1976-11-16

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 700

Patent

active

039924718

ABSTRACT:
A process for the separation of 1,3-butadiene from a feed mixture comprising 1,3-butadiene and at least one other C.sub.4 unsaturate. A feed stream containing 1,3-butadiene and at least one other C.sub.4 unsaturate is contacted at adsorption conditions including the liquid phase with an adsorbent comprising type X zeolite containing sodium or potassium cations at the exchangeable cationic sites to effect the selective adsorption of 1,3-butadiene. The adsorbent is then contacted with a desorbent material at desorption conditions including the liquid phase to effect the removal of 1,3-butadiene from the adsorbent. The 1,3-butadiene is thereafter separated by separation means from desorbent material and recovered as a purified product.

REFERENCES:
patent: 2882243 (1959-04-01), Milton
patent: 3106593 (1963-10-01), Beuesi et al.
patent: 3130006 (1964-04-01), Rabo et al.
patent: 3311671 (1967-03-01), Baker
patent: 3539502 (1970-11-01), Griswold
patent: 3825490 (1974-07-01), Vachnda

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