The method of producing catalyst hydrocyanide

 

The invention concerns a method of producing catalyst hydrocyanide organic ethyleneamines connection. In particular, it concerns a method of producing catalyst hydrocyanide containing Nickel and water-soluble phosphine. The described method of preparation of the catalyst of hydrocyanide organic compounds consisting of an aqueous solution of at least one water-soluble phosphine and Nickel, is that lead in contact with an aqueous solution of water-soluble phosphine and Nickel hydroxide, is added in Wednesday, hydrogen cyanide or a compound that generates hydrogen cyanide, mix the medium to dissolve the Nickel, then subjected to environment restoration so that at least part of the dissolved Nickel to result in a zero oxidation state. The catalyst used in organic reactions, natalizumab two-phase systems, such as hidrotsianova unsaturated compounds. Effect: the simplification of the preparation of the catalyst through the use of more accessible compounds of Nickel, having a high degree of purity. 6 C.p. f-crystals.

Description text in facsimile form (see graphic part)n

2. The method according to p. 1, wherein the solution is stirred at a temperature below 100C, preferably from 20 to 80C.

3. The method according to p. 1 or 2, characterized in that Nickel zero oxidation state is added to the environment before the start of the recovery phase of Nickel.

4. The method according to one of paragraphs.1-3, characterized in that the added amount of hydrogen cyanide at least equal to the stoichiometric amount required to convert the hydroxide of Nickel cyanide Nickel.

5. The method according to p. 4, wherein the added amount of cyanide is about the amount of water-soluble phosphine, 1 mol of Nickel ranges from 0.5 to 2000 mol, preferably from 2 to 300 mol.

7. The method according to one of paragraphs.1-6, characterized in that the recovery of Nickel is carried out by treatment with gaseous hydrogen, electrochemical recovery or recovery with a mineral or organic reductants.

 

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