The present invention describes the use of soluble metal salts to reduce impurities and metathesis catalysts poisons from olefinic feedstocks to improve olefin metathesis efficiency. The soluble metal salts were added to the olefinic feedstocks to prevent peroxides and catalyst poisons from inhibiting the metathesis catalyst. The soluble metal salts remain in the olefinic feedstocks and are used without further purification in the olefin metathesis reactions. The key to this invention is the soluble metal salt compounds do not inhibit the olefin metathesis catalysts but unexpectedly increase olefin metathesis catalyst efficiency while prior art heterogeneous metal complexes sequester the olefin metathesis catalyst, preventing olefin metathesis.
本发明描述了利用可溶性
金属盐来减少烯烃原料中的杂质和醚交换催化剂毒物,以提高烯烃醚交换效率。可溶性
金属盐被添加到烯烃原料中,以防止过氧化物和催化剂毒物抑制醚交换催化剂。这些可溶性
金属盐留在烯烃原料中,在烯烃醚交换反应中无需进一步纯化即可使用。这项发明的关键在于可溶性
金属盐化合物不会抑制烯烃醚交换催化剂,而是意外地提高了烯烃醚交换催化剂的效率,而传统的异质
金属络合物会固定烯烃醚交换催化剂,从而阻止烯烃醚交换。