34results about "Amino compound preparation by disproportionation" patented technology

The present invention relates generally to catalysts and processes for the Z-selective formation of internal olefin(s) from terminal olefin(s) via homo-metathesis reactions.

The present invention provides catalyst compositions useful for transamination reactions. The catalyst compositions have a catalyst support that includes transitional alumina, use a low metal loading (for example, less than 25 wt. %), and do not require the presence of rhenium. The catalyst compositions are able to advantageously promote transamination of a reactant product (such as the transamination of EDA to DETA) with excellent activity and selectivity, and similar to transaminations promoted using a precious metal-containing catalyst.

The present invention relates generally to catalysts and processes for the Z-selective formation of internal olefin(s) from terminal olefin(s) via homo-metathesis reactions.

The present invention reacts ethylenediamine with one or more additional ethyleneamines in the presence of a transamination catalyst to provide a different, preferably more desirable product mix of one or more ethyleneamines.

A process for preparing high molecular weight acyclic polyamines comprising providing a reaction mixture that includes at least a first component comprising a first organic, nitrogen-containing compound that contains at least two non-tertiary amine groups separated from one another by a ternary or higher carbon atom spacing that can be transaminated in the presence of a hydrogenation / dehydrogenation catalyst to form a mixture of higher molecular weight, acyclic polyamines while minimizing the formation of cyclic polyamines.

Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form a variety of copolymers. The oligomers, end-functionalized oligomers and copolymers exhibit corrosion-resistant properties and provide corrosion-resistant compounds for use on various substrates.

According to the present invention, a method for producing a catalyst for use in the production of a methylamine compound can be provided, wherein the catalyst comprises a modified crystalline silicoaluminophosphate salt molecular sieve. The method comprises: a moisture control step of adsorbing moisture onto a crystalline silicoaluminophosphate salt molecular sieve in an amount of 5 to 30 wt % of the crystalline silicoaluminophosphate salt molecular sieve; and a step of heating the crystalline silicoaluminophosphate salt molecular sieve having moisture adsorbed thereon under a pressure of 0.1 MPa or more and at a temperature of 130 to 350° C. for 5 to 40 hours.

The invention discloses a load type catalyst used for combining di-n-propylamine, which utilizes roasted gama-alumina as a carrier. An active component is loaded on the carrier and is composed of nickel, copper, zinc and ruthenium. The weight sum of the nickel, the copper, the zinc, the ruthenium and the roasted gama-alumina is the total weight. The nickel occupies 15% to 25% of the total weight, the copper occupies 5% to 12% of the total weight, the zinc occupies 0.5% to 1% of the total weight, and the ruthenium occupies 0.5% to 1% of the total weight. A preparation method of the load type catalyst for combining the di-n-propylamine and a method for preparing the di-n-propylamine by using the load type catalyst are further disclosed. N-propylamine is added in a raw material cylinder, is gasified and then passes through a fixed bed reactor containing an activated load type catalyst, catalyst disproportionated reaction is conducted under the hydrogen condition, a product is collected after condensation, and rectification is conducted to obtain the di-n-propylamine.

The invention discloses a loading-type catalytic agent for synthesizing N-butylethylamine. Gamma-alumina after roasting serves as a carrier, active components composed of Cu and Ni are loaded on the carrier, sum of weight of the Cu, the Ni and the gamma-AI2O3 after roasting is total weight, sum of weight of the Cu and the Ni occupies 25%-38% of the total weight, and ratio of amount of substance of the Cu and the Ni is 0.9-1.5 / 1. The invention further provides a preparation method of the loading-type catalytic agent. A method for synthesizing the N-butylethylamine by using the loading-type catalytic agent is further provided, ethylamine and the n-butylamine are mixed in a mixing tank to obtain mixed liquor which passes through a fixed bed reactor containing activated loading-type catalyticagent after being vaporized, an amine disproportionated reaction is carried out in a hydrogenation condition, products are collected after condensation, and rectification is carried out to obtain theN-butylethylamine.

The invention discloses a load type catalyst for synthesis of triethylamine. The catalyst comprises the components of the calcined gamma-aluminum oxide (Al2O3) serving as a carrier and active components loaded on the carrier; the active components consist of nickel, copper and palladium; the nickel accounts for 15 to 25 percent of the total weight of the nickel, the copper, the palladium and the calcined gamma-Al2O3; the copper accounts for 5 to 12 percent of the total weight of the nickel, the copper, the palladium and the calcined gamma-Al2O3; and the palladium accounts for 1 to 3 percent of the total weight of the nickel, the copper, the palladium and the calcined gamma-Al2O3. The invention further discloses a preparation method for the load type catalyst. The invention further discloses a method for synthesizing the triethylamine by utilizing the load type catalyst. The method comprises the following steps of mixing ethylamine and diethylamine in a mixed tank to obtain mixed liquid; vaporizing the mixed liquid; performing disproportionated reaction by using a fixed bed reactor containing the activated load type catalyst under the hydrogenation condition; condensing after the reaction is finished; collecting condensation products; and rectifying to obtain the triethylamine.