摘要:
In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
摘要:
In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
摘要:
The present invention provides an integrated, optimized process for the production of ethylene, carbon monoxide and acetic acid from an ethane feed, including reacting ethane with oxygen in the presence of a catalyst to produce ethylene, carbon monoxide and acetic acid in a reactor, wherein the catalyst comprises the elements Mo, Pd, X, and Y in the gram-atomic ratios MOa Pdb Xc Yd, and the oxygen partial pressure in the reactor is about 15 psia to about 50 psia. The partial pressure of ethane in the reactor is about 50 psia to about 150 psia.
摘要翻译:本发明提供了一种用于从乙烷进料生产乙烯,一氧化碳和乙酸的综合优化方法,包括在催化剂存在下使乙烷与氧反应以在反应器中生产乙烯,一氧化碳和乙酸,其中 该催化剂包括元素Mo,Pd,X和Y,其中原子比为M 1,A 2,C x C, 并且反应器中的氧分压为约15psia至约50psia。 反应器中乙烷的分压为约50psia至约150psia。
摘要:
The present invention provides porous body precursors and shaped porous bodies. Also included are catalysts and other end-use products based upon the shaped porous bodies and thus the porous body precursors. Finally, processes for making these are provided. The porous body precursors are germanium doped and comprise a precursor alumina blend. It has now surprisingly been discovered that inclusion of germanium, alone or in combination with such a blend, in porous body precursors can provide control over, or improvements to, surface morphology, physical properties, and/or surface chemistry of shaped porous bodies based thereupon. Surprisingly and advantageously, heat treating the shaped porous bodies can result in additional morphological changes so that additional fine tuning of the shaped porous bodies is possible in subsequent steps.
摘要:
A process for preparing an antimonate-based mixed metal oxide catalyst in a catalytically active oxidized state, wherein the catalyst is represented by the empirical formula MeaSbbXcQdReOf, wherein Me, X, Q, R, a, b, c, d, e, and f are as defined herein, comprising (a) contacting an aqueous Sb2O3 slurry with HNO3 and one or more Me compounds, and, optionally, one or more compounds selected from X, Q, or R compounds to form a first mixture; (b) heating and drying the first mixture to form a solid product; and (c) calcining the solid product to form the catalyst, the catalysts prepared by the process, and the use of the catalysts in ammoxidation and oxidation processes. The catalysts of the invention are particularly useful for the production of acrylonitrile from propylene, ammonia, and an oxygen-containing gas.
摘要翻译:一种制备催化活性氧化态的锑酸盐系混合金属氧化物催化剂的方法,其中所述催化剂由经验式Me表示, 其中Me,X,Q,R,a,b,c,d,c,d, e和f如本文所定义,包括(a)使含水Sb 2 N 3 O 3浆液与HNO 3和一种或多种Me 化合物和任选的一种或多种选自X,Q或R化合物的化合物以形成第一混合物; (b)加热和干燥第一混合物以形成固体产物; 和(c)煅烧固体产物以形成催化剂,通过该方法制备的催化剂,以及在氨氧化和氧化过程中使用催化剂。 本发明的催化剂特别可用于从丙烯,氨和含氧气体制备丙烯腈。