Abstract:
1,3-propanediol is prepared in a process which involves hydroformylating ethylene oxide: (a) in an essentially non-water-miscible solvent in the presence of a non-ligated cobalt catalyst and a catalyst promoter at a temperature within the range of about 50.degree. to about 100.degree. C. and a pressure within the range of about 500 to about 5000 psig, to produce an intermediate product mixture comprising less than about 15 wt % 3-hydroxypropanal; (b) adding an aqueous liquid and extracting at a temperature less than about 100.degree. C. the 3-hydroxypropanal to provide an aqueous phase comprising 3-hydroxypropanal in greater concentration than the concentration of 3-hydroxypropanal in said intermediate product mixture, and an organic phase comprising the cobalt catalyst; (c) separating the aqueous phase from the organic phase; (d) hydrogenating the 3-hydroxypropanal to provide a hydrogenation product mixture comprising 1,3-propanediol; and (e) recovering 1,3-propanediol from said hydrogenation product mixture. The process enables the production of 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand-modified cobalt catalyst.
Abstract:
The present invention is directed to the use of hydantoin-containing polyether alcohols as additives in a gasoline composition. The invention is also directed to the use of these compounds for decreasing intake valve deposits, controlling octane requirement increases and reducing octane requirement. The invention is further directed to hydantoin-containing compounds.
Abstract:
Novel bis-hydroxy diamides having the formula: ##STR1## where R is an alkyl or aryl moiety having from 3 to 10 carbon atoms and where x ranges from 1 to 6 may be produced by reacting dicarboxylic acids with polyethylene glycol monoamines. Suitable dicarboxylic acids include adipic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, 1,1,3-trimethyl-5-carboxy-3-(p-carboxyphenyl)indane, and mixtures thereof. Suitable monoamines include diethylene glycol monoamine, also known as Diglycolamine.RTM. amine (DGA); triethylene glycol monoamine (TEGMA) and tetraethylene glycol monoamine (T.sub.4 EGMA), among others. The resulting bis-hydroxy diamides are useful to make hydroxy-terminated polyamides and as fuel additive corrosion inhibitors. The diamides have unusual solubility properties.
Abstract:
This present invention relates to a disproportionation catalyst and to a process for preparing a disproportionation catalyst comprising forming a calcined composite comprising at least one of molybdenum and rhenium supported on an inorganic oxide support and contacting the calcined composite with an organoborane compound. The invention further relates to a process for the disproportionation of olefinic hydrocarbons comprising contacting at least one olefinic hydrocarbon with a catalyst comprising at least one of molybdenum and rhenium supported on an inorganic oxide support promoted with an organoborane compound. More specifically, the invention relates to the uses of an organoborane compound promoted molybdenum and rhenium supported on an inorganic oxide support for the production of linear alpha olefins from a mixture of internal olefins and ethylene. The invention also relates to the application of the described promoted catalyst for the production of 1,6-heptadiene and 1,6-octadiene from the reaction of cyclopentene with ethylene and propylene, respectively, and the fact that the presence of organoborane in the catalyst allows the reaction to be carried out at very mild temperature while obtaining high product selectivity.
Abstract:
A block amido-amine condensation product having the formula: ##STR1## wherein R' represents hydrogen or methyl, andR" represents an organic group selected from the group consisting of polyoxyethylene groups, polyoxypropylene groups, polyoxyethylene/oxypropylene groups, and polyethylene amino groups.
Abstract:
This invention relates to a two step process for converting linear paraffins to alpha olefins. The first step comprises contacting said paraffins with a catalyst comprising an oxide an alkali or alkaline earth metal optionally dispersed on a refractory and porous carrier. The product of this process contains only small amounts of aromatics and branched olefins. The cracked product is then converted to an olefin product containing primarily alph olefins by contacting with ethylene and a disproportionation catalyst as disproportionation conditions.
Abstract:
Disclosed are novel hydrazine terminated polyoxyalkylene amines which contain active hydrazine, secondary amines, flexible ether groups and amide functionalities in the same molecule. They are prepared in a two-step reaction which can be represented by the following: ##STR1## where R.dbd.H or CH.sub.3 and R.sup.1 .dbd.CH.sub.3 or CH.sub.2 CH.sub.3. The products are used for epoxy curing agent and chain extender for polyurea polymers.
Abstract:
Tetrafunctional amine derivatives of digyclidyl ethers of Bisphenol A that are liquid at ambient temperatures and that are useful as curing agents for epoxy resins are disclosed together with the method by which they are prepared which comprises the steps of:dissolving the diglycidyl ether in a solvent (acetone or methyl ethyl ketone) and adding a polyoxyalkylene diamine in the mole ratio of about 4 to about 5 moles of the diglycidyl ether per mole of said polyoxyalkylene diamine to provide an initial reaction mixture,heating the initial reaction mixture with agitation at a temperature of about 80.degree. to about 160.degree. C. for about 1 to about 4 hours sufficient to permit the diglycidyl ether to quantitatively react with the polyoxyalkylene diamine and to substantially completely volatilize the solvent to thereby form an intermediate reaction product,adding to the intermediate reaction product about 4 moles or more of a polyoxyethylene diamine per mol of initially used polyoxyalkylene diamine and heating the thus-formed second reaction mixture at a temperature of about 100.degree. to about 150.degree. C. for about 0.5 to about 5 hours, to form the tetrafunctional amine derivative.
Abstract:
Secondary isopropylamine terminated polyoxyethylene and/or polyoxypropylene diamines or triamines are formed in a one-step reaction when a polyoxyethylene and/or polyoxypropylene primary diamine or triamine is hydrogenated with hydrogen in the presence of a hydrogenation catalyst, hydrogen and acetone. The secondary isopropylamine terminated polyoxyethylene and/or polyoxypropylene primary diamines or triamines are useful as curing agents for epoxy resins.
Abstract:
Secondary isopropylamine terminated oxyethylene and/or oxypropylene diamines or triamines are prepared by reacting an oxyethylene and/or oxypropylene primary diamine or triamine with acetone in the presence of a hydrogenation catalyst and hydrogen. The secondary isopropylamine terminated oxyethylene and/or oxypropylene derivatives are useful as curing agents for epoxy resins.