Continuous activation separator for raney nickel catalyst

Abstract

The invention discloses a continuous activation separator for a raney nickel catalyst, which comprises a sealed kettle body, and the separator is characterized in that the kettle body comprises a reaction active region and a separating zone at the lower part, the separating zone comprises a settling section in an inverted frustum shape and a concentration section in a cylindrical shape, the settling section is fixedly connected to the reaction active region through a horizontal separator plate, the settling section is communicated to the concentration section at the lower part, a rotatable thickener is passed through a center shaft of the kettle body, a rake frame stirrer is arranged on the thickener, the frame stirrer is positioned in the reaction active region and rotates with the thickener, a hollow sleeve used for communicating with the reaction active region and settling section and sleeved outside the thickener is fixedly arranged on the horizontal separator plate, a reactant inlet and a gas outlet are arranged at the upper end of the reaction active region, a waste liquid outlet is arranged at the upper part of the settling section, a product outlet is arranged at the bottom of the concentration section, and the continuous activation separator has the advantages that the materials can be completely mixed, reaction is fully carried out, and gas-liquid-solid three phases continuous separation after reaction can be simultaneously realized.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a Raney nickel catalyst continuous activation separator. Background technique [0002] Raney nickel, also translated as Raney nickel, is a solid-state heterogeneous catalyst composed of fine grains of nickel-aluminum alloy with a porous structure. It was first used by American engineer Maury Raney in the hydrogenation process of vegetable oil as a used as a catalyst. Raney nickel's strong adsorption to hydrogen, high catalytic activity and thermal stability make Raney nickel widely used in many industrial processes and organic synthesis reactions. [0003] The high catalytic activity of Raney nickel comes from the catalytic properties of nickel itself and its porous structure, and the porous structure is derived from the removal of aluminum in nickel aluminum alloy with concentrated sodium hydroxide solution. This process is called leaching, simplified The subsequent ...

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Problems solved by technology

The preparation process of the above-mentioned Raney nickel catalyst is carried out in a single reaction vessel or a fixed bed, and the mixing of materials in the reaction system is not complete, and the purpose of full reaction cannot be achieved; the heat generated by the reaction cannot be removed in time, making the reaction temperature unstable. It is not conducive to the smooth progress of the reaction; at the same time, the above-mentioned reactor vessel or fixed-bed reactor cannot continuously realize the separation of gas-liquid-solid three-phase

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