Supported catalyst used for synthesis of diisopropylamine from isopropylamine and preparation method as well as application of supported catalyst

Abstract

The invention discloses a supported catalyst used for synthesis of diisopropylamine from isopropylamine. Roasted gamma-alumina is used as a supporter, and active ingredients are supported on the supporter to obtain the supported catalyst, wherein the active ingredients consist of nickel, copper and platinum; the sum of weight of the nickel, the copper, the platinum and the roasted gamma-Al2O3 is referred to as total weight; the nickel accounts for 15-25 percent of the total weight; the copper accounts for 5-12 percent of the total weight; and the platinum accounts for 0.5-1 percent of the total weight. The invention also provides a preparation method of the supported catalyst. The invention also provides application of the supported catalyst, i.e., the supported catalyst is used for synthesizing the diisopropylamine from the isopropylamine. The supported catalyst provided by the invention is used in a process of disproportionation reaction of the isopropylamine for synthesizing the diisopropylamine. The supported catalyst has the characteristics of environmental friendliness, low toxicity, greatly reduced cost compared with other processes, suitability for industrial production and the like.

Description

technical field [0001] The invention relates to a supported catalyst for synthesizing diisopropylamine by disproportionation reaction of isopropylamine, a preparation method and application thereof. Background technique [0002] Diisopropylamine (Diisopropylamine), its molecular formula is C 6 h 15 N, whose structural formula is as follows: [0003] [0004] Diisopropylamine is an important fine chemical intermediate, mainly used in the synthesis of pesticides, herbicides, etc., and secondly used in the synthesis of pharmaceuticals such as Ganle, Vipromine, Propensine and Probenzine. Synthetic dyes, rubber vulcanization accelerators, surfactants, etc. [0005] In the literature, there are mainly two kinds of catalyst reports on the synthesis of diisopropylamine from isopropylamine through disproportionation reaction, namely K / Hβ zeolite-Al 2 o 3 Catalyst and ZrO 2 / Hβ Zeolite-Al 2 o 3 catalyst. details as follows: [0006] 1), patent CN1148341C reported that K / H...

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Problems solved by technology

In addition, the zirconium element used in this catalyst is much more expensive than the copper-nickel element commonly used in industry, so this catalyst is not easy to be industrialized on a large scale

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