摘要:
Olefins are converted to alcohols by a one-step, hydroformylation process comprising contacting an olefin, such as 1-hexene, with a gaseous mixture of carbon monoxide and hydrogen in the presence of a catalyst prepared by loading a bimetallic cluster of the formula: Rh.sub.x Co.sub.y CO.sub.12 wherein both x and y are independently integers 1-3 with the proviso that .SIGMA. (x+y)=4, onto an amine resin, such as Dowex.RTM. MWA-1.
摘要:
Bispicolylamines are prepared by reacting (a) cyanopyridine with (b) hydrogen in the presence of a catalytic amount of (c) a palladium or carbon catalyst which has been preconditioned by contact with a reacting mixture of (a) and (b) for a time sufficient to cause said catalyst to preferentially produce bispicolylamine. The reaction is normally conducted under autogenous or superatmospheric pressure at a temperature of from about 20.degree. to about 75.degree. C in a lower alkanol (e.g., methanol) as the reaction medium.
摘要:
Dicyclopentadiene is selectively and substantially hydroformylated to its dimethanolic derivatives by a process comprising contacting dicyclopentadiene with a gaseous mixture of carbon monoxide and hydrogen at a temperature of at least about 100.degree. C. and a pressure of at least about 1,000 psig in the presence of a catalytic amount of a catalyst consisting essentially of a rhodium-cobalt bimetallic cluster, such as Rh.sub.2 Co.sub.2 CO.sub.12, supported on an amine resin, such as DOWEX.RTM. MWA-1.
摘要翻译:二环戊二烯通过包括使二环戊二烯与一氧化碳和氢气的气体混合物在至少约100℃的温度和至少约1,000psig的压力下在存在下接触的方法选择性且基本上加氢甲酰化为其二甲醇衍生物 催化量的催化剂基本上由负载在胺树脂上的铑 - 钴双金属簇如Rh 2 Co 2 CO 12组成,例如DOWEX TM MWA-1。
摘要:
Olefins are converted to alcohols by a one-step, hydroformylation process comprising contacting an olefin, such as 1-hexene, with a gaseous mixture of carbon monoxide and hydrogen in the presence of a catalyst prepared by loading a bimetallic cluster of the formula: Rh.sub.x Co.sub.y CO.sub.12 wherein both x and y are independently integers 1-3 with the proviso that .SIGMA.(x+y)=4, onto an amine resin, such as Dowex.RTM. MWA-1.
摘要:
A process of preparing a catalyst comprising gold on a titanium-containing support. The method involves impregnating a support with a gold compound, a reducing agent, and optionally a promoter metal, wherein the reducing agent and/or the support contains titanium, and optionally heating the impregnated support. The catalyst is useful in the hydro-oxidation of olefins, such as propylene, with oxygen in the presence of hydrogen to olefin oxides, such as propylene oxide.
摘要:
A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.
摘要:
A process of preparing a mixture of polyalkylenepolyamines and alkanolpolyamines comprising contacting a difunctional aliphatic alcohol with a primary or secondary aliphatic amine in the presence of a metal silicate catalyst wherein the metal is selected from the group consisting of Groups IIA, IIIB, and the lanthanide and actinide metals. For example, monoethanolamine reacts with diethylenetriamine in the presence of magnesium silicate to yield a mixture of higher molecular weight linear and branched polyethylenepolyamines and their corresponding alkanolpolyamines. These product mixtures are useful in the formation of specialty polyurethanes.
摘要:
A process of preparing linearly-extended polyalkylenepolyamines, such as linear and branched polyethylenepolyamines, comprising contacting a difunctional aliphatic alcohol, such as monoethanolamine, with a reactant aliphatic amine, such as ethylenediamine, in the presence of a metal silicate catalyst wherein the metal is selected from Groups IIIB, IVB, VB and the lanthanide rare earth metals. Reactions of piperazines with alkanolamines to yield alcohol-extended and/or amine-extended piperazines are included in the process of this invention.
摘要:
A process for preparing amines comprising contacting an alcohol with a reactant amine in the presence of hydrogen and a catalyst comprising at least one compound containing an element of Group VIB and at least one non-metallic element of Groups IIIA, IVA, and VA of the Periodic Table, the contacting occurring under conditions such that the hydroxyl moiety of the alcohol is replaced by the reactant amine to form an amine product.
摘要:
A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and a catalyst. The catalyst comprises gold on a support of titanium dispersed on silica. The titanium phase is disorganized and substantially free of crystalline titanium dioxide, as determined by analytical methods, such as, high resolution transmission electron microscopy and Raman spectroscopy. Selectivity to olefin oxide is high at good conversions of the olefin. The time between catalyst regenerations is long, and the catalyst is readily regenerated.