公开(公告)号：US07019185B2

公开(公告)日：2006-03-28

申请号：US10313278

申请日：2002-12-06

Applicant: Ajit Bhaskar Dandekar ,  John P. McWilliams ,  Thomas Francis Degnan, Jr. ,  Michael Hryniszak

Inventor： Ajit Bhaskar Dandekar ,  John P. McWilliams ,  Thomas Francis Degnan, Jr. ,  Michael Hryniszak

IPC: C07C2/68 ,  C07C2/64

CPC classification number: C07C2/66 ,  C07C15/085

Abstract: In a method for producing monoalkylated aromatic compounds, an aromatic feed is contacted with an alkylating agent in the presence of a catalyst comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07, and 3.42±0.07 Angstrom. The catalyst also contains at least one metal cation selected from Groups 1–4 and 7–16 of the Periodic Table of Elements, wherein the metal cation is present in an amount of at least 0.5% by weight of the catalyst, whereby selectivity of the catalyst to produce monoalkylates over polyalkylates is improved as compared with the identical catalyst but without the metal cation present.

Abstract translation: 在制备单烷基化芳族化合物的方法中，芳香族进料在含有分子筛的催化剂存在下与烷基化剂接触，所述催化剂包含具有12.4±0.25,6.9±0.15,3.57的d间距最大值的X射线衍射图 ±0.07和3.42±0.07埃。 催化剂还含有至少一种选自元素周期表第1-4和第7-16部分的金属阳离子，其中金属阳离子的量为催化剂重量的至少0.5％，从而选择性 与相同的催化剂相比，但不存在金属阳离子，催化剂在多烷基化物上产生单烷基化物得到改善。