Device for channelization continuous synthesis of hydrofluoroalkane through liquid phase method
A fluorinated alkane and liquid-phase method technology is applied in the field of devices for continuous pipeline synthesis of fluorinated alkanes by a liquid-phase method, which can solve the problems such as the failure to effectively solve the problem of reactor corrosion, and achieves reduction of separation energy consumption and improvement of efficiency. , to avoid the effect of accumulation
Active Publication Date: 2020-02-04
JIANGSU SANMEI CHEM +1
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Problems solved by technology
However, the corrosion problem of the reactor by the liquid phase fluorination method has not been effectively solved.
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[0025] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific implementations. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.
[0026] In the present invention, unless otherwise specified, the raw materials and equipment used can be purchased from the market or commonly used in this field. The methods in the following examples, unless otherwise specified, are conventional methods in the art. The terms "first", "second" and the like in the present invention are only used for distinguishing descriptions, and should not be understood as indicating or implying relative importance.
[0027] A device for continuously synthesizing fluorinated alkanes in a liquid-phase pipeline,
[0028] The fluoroalkane has the following general formula:
[0029] C n h 2n+2-x-y ...
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The invention discloses a device for channelization continuous synthesis of hydrofluoroalkane through a liquid phase method. The device comprises a catalyst storage tank, a chloralkane storage tank, ahydrogen fluoride storage tank, a premixing tank, a first reaction segment, a pressure stabilizing tank, a first water washing tower, a first alkali washing tower, a first rectifying tower, and a first product storage tank; the catalyst storage tank, the chloralkane storage tank and the hydrogen fluoride storage tank are connected to the premixing tank, the premixing tank is connected with a first metering pump and then connected to an inlet of a tubular reactor, the hydrogen fluoride storage tank is connected with a second metering pump and then connected to the inlet of the tubular reactor,and the tubular reactor comprises the first reaction segment and a second reaction segment; and an outlet of the tubular reactor is connected to the pressure stabilizing tank through a cooling segment, the upper part of the pressure stabilizing tank is provided with a gas phase outlet, the gas phase outlet is connected to a separation device, the bottom of the pressure stabilizing tank is provided with a liquid phase outlet, and the liquid phase outlet is connected to the premixing tank. The device has the advantages of using of general equipment, small investment, simple process, no pollution, high product purity and the like.
Description
technical field [0001] The invention relates to a device for continuously synthesizing fluorinated alkanes through pipelines in a liquid phase method. Background technique [0002] As a substitute for freon refrigerants, hydrofluoroalkane has zero ozone depletion potential and good thermodynamic properties. At present, the preparation methods of fluoroalkanes mainly include liquid-phase fluorination and gas-phase fluorination. The liquid-phase fluorination is widely used because of its large production capacity and low energy consumption. However, the corrosion problem of the reactor by the liquid phase fluorination method has not been effectively solved. Contents of the invention [0003] In order to meet the industrial demand for different fluoroalkanes, the present invention provides a device for continuously synthesizing fluoroalkanes in a liquid phase method, which is suitable for the fluorination reaction of raw materials including hydrofluoric acid. The device has ...
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IPC IPC(8): C07C17/20C07C19/10C07C19/08
CPCC07C17/206C07C19/10C07C19/08
Inventor 赵恒军钱超胡喜军沈涛葛建飞
Owner JIANGSU SANMEI CHEM