| 摘要 |
A process for the separation of 1,3-butadiene from a feed mixture comprising 1,3-butadiene and at least one other C4 unsaturate. A feed stream containing 1,3-butadiene and at least one other C4 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.
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