摘要:
This invention is directed to a process for making an iminodiacetic acid compound from a monoethanolamine substrate having the formula: wherein R1 is hydrogen, hydrocarbyl, or substituted hydrocarbyl. The process includes a series of reactions comprising a cyanomethylation, a hydrolysis and a dehydrogenation. In a particular embodiment, the iminodiacetic acid produced is disodium iminodiacetic acid and the monoethanolamine substrate used is 2-aminoethanol.
摘要:
This invention is directed to a process for making an iminodiacetic acid compound from a monoethanolamine substrate having the formula: wherein R1 is hydrogen, hydrocarbyl, or substituted hydrocarbyl. The process includes a series of reactions comprising a cyanomethylation, a hydrolysis and a dehydrogenation with the hydrolysis and dehydrogenation steps being carried out either sequentially or concurrently. In a particular embodiment, the iminodiacetic acid produced is disodium iminodiacetic acid and the monoethanolamine substrate used is 2-aminoethanol.
摘要:
This invention is directed a process for preparation of a carboxylic acid salt by dehydrogenation of a primary alcohol. The invention is also directed to a catalyst for dehydrogenating primary alcohols.In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) having a copper-containing coating at the surface thereof.In another embodiment, the catalyst comprises a metal selected from the group consisting of zinc, cobalt, iron, tin and combinations thereof having a copper-containing coating at the surface thereof.
摘要:
This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) coated with copper. The support comprises at least about 10% (by weight) non-copper metal, and the copper-containing coating comprises from about 0.005 to about 0.5 grams of copper (per gram of said metal support). In another embodiment, the catalyst comprises a metal support (preferably a metal sponge support) coated with silver. The support comprises at least about 10% (by weight) non-silver metal, and the silver-containing coating comprises from about 0.005 to about 0.5 grams of copper (per gram of said metal support). In another embodiment, the catalyst comprises at least about 15% (by weight) non-copper metal, and at least about 10% (by weight) copper. In yet another embodiment, the catalyst comprises at least about 15% (by weight) non-silver metal, and at least about 10% (by weight) silver. In both these embodiments, it is particularly preferable for the catalyst to be in the form of a metal sponge. This invention is also directed to copper-containing and silver-containing catalysts which may, for example, be used in the above process. This invention is further directed to processes for making such catalysts.
摘要:
This invention is directed a process for preparation of a carboxylic acid salt by dehydrogenation of a primary alcohol. The invention is also directed to a catalyst for dehydrogenating primary alcohols. In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) having a copper-containing coating at the surface thereof. In another embodiment, the catalyst comprises a metal selected from the group consisting of zinc, cobalt, iron, tin and combinations thereof having a copper-containing coating at the surface thereof.
摘要:
This invention is directed a catalyst for dehydrogenating primary alcohols.In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) having a copper-containing coating at the surface thereof.In another embodiment, the catalyst comprises a metal selected from the group consisting of zinc, cobalt, iron, tin and combinations thereof having a copper-containing coating at the surface thereof.
摘要:
This invention is directed to a process for dehydrogenating primary alcohols to make salts of carboxylic acids. The process comprises contacting a catalyst, preferably a metal support coated with copper or silver, with an alkaline mixture comprising a primary alcohol. The invention further provides for novel copper-containing and silver-containing catalysts which may be used, for example, in the above process as well as processes for making such catalysts.
摘要:
This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol.In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) having a copper-containing active phase at the surface thereof. The support is resistant to deformation under the conditions of the dehydrogenation reaction.In another embodiment, the catalyst comprises a metal sponge having a copper-containing active phase at the surface thereof and a supporting structure containing at least 10% non-copper metal.This invention is also directed to copper-containing catalysts which may, for example, be used in the above process. This invention is further directed to processes for making such catalysts.
摘要:
This invention is directed to catalysts for dehydrogenating primary alcohols. Catalysts comprising a metal support comprising (a) from about 2% to about 30% by weight copper, and (b) at least about 50% by weight non-copper metal selected from the group consisting of nickel, zinc, tin, cobalt, iron and combinations thereof; and a copper-containing coating are described.
摘要:
The present invention is directed to oil compositions having a high concentration of poly-unsaturated fatty acids. In addition, the oils of the present invention have advantageous stability characteristics and minimal trans-fatty acids.