Device and method for efficiently separating and extracting oil in water phase by utilizing extracted organic waste gas

Abstract

The invention discloses a device and a method for efficiently separating and extracting oil in a water phase by utilizing extracted organic waste gas, the device comprises an extraction tank, a negative pressure circulating system and an organic bubble generator, the extraction tank is provided with an initial mixing chamber, a first clarification chamber, an air floatation mixing chamber and a second clarification chamber which are arranged in sequence; a pipeline communicated with the air floatation mixing chamber is arranged at the top of the organic bubble generator, a pipeline connected with a negative-pressure fan is arranged at the tops of the initial mixing chamber and the air floatation mixing chamber, and the other end of the negative-pressure fan is communicated with the organicbubble generator through a pipeline; and the upper parts of the first clarification chamber, the air floatation mixing chamber and the second clarification chamber are communicated. According to theinvention, volatilization loss of an organic phase is effectively solved, the working environment is improved, the oil removal effect is improved, and the oil content in a water phase is reduced to beless than 5ppm.

Description

Technical field [0001] The present invention belongs to the field of wet metallurgy, and is related to apparatus and method for extracting oil in the extraction water phase by extracting organic exhaust gas. Background technique [0002] In the field of wet metallurgy, the extraction operation is an important chemical unit, and the extraction means that the compound is transferred from one solvent to another solvent using the compound of the solubility or dispensing coefficient in two mutual unhablow solvents. After repeated extraction, most of the units extracted from most chemicals are widely used in the separation, extraction or purification process of rare earth, precious metals and non-ferrous metals. Some extraction reactions are exothermic reactions due to the extraction of the raw material solution, and particularly some extraction reactions require heating high-temperature extraction, high temperature results in an organic phase volatile, resulting in the loss of the ext...

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Problems solved by technology

[0004] Among them, the separation of dispersed oil, emulsified oil, and dissolved oil is difficult, and it is easy to introduce into the water phase. The oil content in the water phase is generally as high as 50-100ppm, which affects product quality.

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