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    • 10. 发明授权
    • Process for the production of unsymmetrical tert-dialkyl ethers
    • 用于生产不对称叔二烷基醚的方法
    • US5364980A
    • 1994-11-15
    • US816318
    • 1991-12-30
    • Michael C. KerbyDavid E. W. Vaughan
    • Michael C. KerbyDavid E. W. Vaughan
    • B01J29/04C07C41/09C07C43/04
    • B01J29/049C07C41/09
    • A method for preparing unsymmetrical dialkyl ethers and derivatives thereof. The ethers are prepared by reacting a C.sub.1 to C.sub.3 aliphatic alcohol with a tertiary alcohol in the presence of a novel catalyst comprised of a transition metal pillared interlayered clay having generally separated layers wherein the interlayer distances are substantially greater than a precursor of the same but non-separated clay and wherein the product includes multimetallic pillars comprised of a cationic polymeric complex of the formula:Al.sup.iv (Al.sub.12-x M.sub.x).sup.vi O.sub.4 (OH).sub.24.sup.a+where x is a number from 1 to 6; a depends on the selection of M and N; N is selected from Al.sup.3+, Si.sup.4+, Ga.sup.3+, Ge.sup.4+, As.sup.5+, P.sup.5+, Cr.sup.3+, Fe.sup.3+, V.sup.5+, Ru.sup.3+, Ru.sup.4+, N.sup.3+ ; and M is selected from a metal from Groups 5B, 6B, 7B and 8 of the 4th, 5th and 6th Periods of the Periodic Table of the Elements.
    • 一种制备不对称二烷基醚及其衍生物的方法。 醚通过在具有通常分离的层的过渡金属柱状中间层粘土的新型催化剂存在下使C 1至C 3脂族醇与叔醇反应制备,其中层间距离基本上大于相同但不相同的前体 分离的粘土,并且其中所述产品包括由以下式的阳离子聚合物复合物组成的多金属柱:Aliv(Al12-xMx)viO4(OH)24a +,其中x为1至6的数; a取决于M和N的选择; N选自Al3 +,Si4 +,Ga3 +,Ge4 +,As5 +,P5 +,Cr3 +,Fe3 +,V5 +,Ru3 +,Ru4 +,N3 +; 并且M选自元素周期表的第4,5,6和8族的5B,6B,7B和8族的金属。