SU449928A1 - The method of hydrogenation of vegetable oils and fats - Google Patents

Description

I

This ng obrebsmno refers to the nron: the status of vegetable oils and, more precisely, to the methods of hydriropanne them.

Carry out the method of hydrogenation of vegetable oils and fats on a copper – catalyst catalyst in 1H1subst and Splicagel.

The purpose of the present invention is to intensify the process.

For this, the catalyst is used in the form of an oil suspension, and the snigel is pre-ground and n suspension is introduced in an amount of 0.5-5% of the catalyst weight. The temperature of hydrogenation is preferably maintained within the range of 180-220 ° C, preferably 220 ° C.

The method is carried out as follows.

A suspension of an industrial mediockel catalyst (without carrier) in the oil to be hydrogenated is prepared and 0.5 to 57 ° is added to it based on the weight of the catalyst of crushed silica gel KSK. The resulting composition is then introduced into the reaction mixture.

Silica gel plays the role of a modifying additive, part of which is located in the scorched state of the 11s separate 1 ° from the catalyst particles during the time of the hilrrons, which helps prevent the poisoning of the latter and activate the molecules of the reactants. In this case, the catalyst can be used both recovered and unrestored, as well as mixed in various ratios.

Example. Cotton oil (ic 105.7, fatty acid composition,%; linolene - 54.8, olein -12, 5, saturated acids - 32.7) is heated to 190 ° in a stream of hydrogen supplied at a rate of 0.51 minutes . After reaching the specified temperature, the prepared catalyst composition is introduced into the reaction mixture, the hydrogen feed rate is increased to 2 L / min, and the temperature is raised to 220 ° C over 15 minutes. The hydrogenation time is 210 minutes, the amount of catalyst (calculated as metallic nickel) - 0.08% by weight of the oil, and the amount of additive varies within the aforementioned limits.

You get salomas, indicators of which are shown in the table.

Subject invention

Claims (2)

1. A method for the hydrirocap of rastnary oils and fats on a fine-nikolepom catalyst in the presence of slichage.n, characterized in that, with the intensification of the process, rolled; The ator is used in the form of an oil suspension, and the silnagel is pre-ground and n suspension is introduced in an amount of 0.5-5% of the total weight of the catalyst. 2. The method according to claim 1, from 1 to 1 and from 1 in that the hydrogenation temperature is maintained within 180-220 ° C, preferably at 220 ° C.