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Clarifying chamber-free continuous extracting device of large-phase ratio easy emulsifying system and operating method

A technology of extraction device and clarification chamber, which is applied in the field of continuous extraction device without clarification chamber, can solve the problems of small volume of liquid to be dispersed, difficult to fully disperse, etc., and achieves the effect of simple structure and easy enlargement

Inactive Publication Date: 2010-10-20
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the traditional stirring method is not easy to fully disperse when the volume of the liquid to be dispersed is small

Method used

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  • Clarifying chamber-free continuous extracting device of large-phase ratio easy emulsifying system and operating method
  • Clarifying chamber-free continuous extracting device of large-phase ratio easy emulsifying system and operating method
  • Clarifying chamber-free continuous extracting device of large-phase ratio easy emulsifying system and operating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The organic phase is 50mM AOT / petroleum ether (bp.: 90-120°C), the aqueous phase is lysozyme containing 1mg / mL, 0.05M borax-hydrochloric acid (HCl) buffer, potassium chloride salt concentration 0.1M, pH = 9.0. The inner diameter of the tower body cavity is 80mm, the height is 100mm, the height of the cavity at both ends of the tower body is 20mm, the diameter of the enlarged end of the liquid phase disperser is 60mm, the maximum diameter of the concentric cylinder is 40mm, the distance between each cylinder is 4mm, and the total height of the liquid phase disperser is 70mm . The heavy phase water phase is used as the dispersed phase, and the structure of the device is as follows: figure 1 shown. Motor speed 600r / min. A single-stage continuous extraction operation is carried out, and the two-phase flow ratio is controlled so that the volume ratio of the organic phase and the aqueous phase in the tower is 12:1. The concentration of lysozyme in the water phase flowing ...

Embodiment 2

[0040] The organic phase is 5.7wt% tributylphosphine oxide (TBPO) in butyl acetate solution, the aqueous phase is 0.05M penicillin potassium saline solution containing 1 mg / mL whey protein, pH=4.0. The structural parameters of the tower body and the liquid phase disperser are the same as in Example 1. The light organic phase is used as the dispersed phase, and the structure of the device is as follows: figure 2 shown. Motor speed 600r / min. A single-stage continuous extraction operation is carried out, and the two-phase flow ratio is controlled so that the volume ratio of the organic phase and the aqueous phase in the tower is 1:15. Detect the content of penicillin in the water phase flowing out from the heavy phase outlet 9 on the side of the cylindrical cavity below the shrinkage section at the bottom of the tower body, and the extraction rate is 92.5%.

Embodiment 3

[0042] The organic phase and water are the same as Example 1. The structural parameters of the tower body and the liquid phase disperser of the single-stage extraction device are the same as in Example 1. The motor speed of each extraction device is also the same, fixed at 600r / min. The heavy phase water phase is used as the dispersed phase, and the three-stage series continuous extraction operation is carried out. The device structure is as follows: Image 6 shown. The two phases flow countercurrently in the device, and the flow ratio of the two phases is controlled so that the volume ratio of the organic phase and the aqueous phase in each extraction device is 15:1. The concentration of lysozyme in the water phase flowing out from the heavy phase outlet 9 at the bottom of the tower body of the last stage extraction device was detected, and the extraction rate was 98.3%.

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Abstract

The invention relates to a clarifying chamber-free continuous extracting device of a large-phase ratio easy emulsifying system and an operating method, which belong to the technical field of chemical liquid-liquid solvent extraction. The device comprises a tower body, a liquid phase disperser, a main shaft, a lifting mechanism, a motor, and the like, wherein the liquid phase disperser comprises a series of hollow concentric cylinders, and spiral type flow guide plates are arranged on the inner walls of the cylinders; and the liquid phase disperser can be used for uniformly dispersing one liquid phase in the other liquid phase by tiny particles at lower rotating speed. Because the shearing force is small when the liquid phase disperser rotates and is difficult to cause the larger turbulence of two phases of liquid flow, phenomena of unbalanced shearing force and easy emulsifying generation in the stirring process of a common stirrer are effectively avoided. The two-phase clarifying speed is high, and the phase continuity is easy for control. The spiral type flow guide plates can assist the self-absorbing type stirring and pumping process, and solves the problems of difficult full dispersion of a small-volume liquid phase and difficult large-phase ratio operation of the traditional stirring way. The device has simple structure, easy amplification and multistage series connection and realizes continuous countercurrent extracting operation.

Description

technical field [0001] The invention belongs to the technical field of liquid-liquid two-phase solvent extraction in the field of chemical industry, and in particular relates to a continuous extraction device without a clarification chamber for a large-phase emulsification system. Background technique [0002] Solvent extraction is an efficient separation and extraction technology, and it is one of the most promising green chemical development directions in the 21st century. As an important branch of chemical separation, extraction technology can select the appropriate extraction system and process according to the separation object and process requirements. It has the characteristics of high selectivity, good separation effect, easy operation and strong adaptability, so it is widely used in wet Metallurgy, petrochemical, atomic energy chemical, pharmaceutical, environmental protection, bioengineering and new material preparation and other fields. Research and development o...

Claims

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Application Information

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IPC IPC(8): B01D11/04
Inventor 黄昆刘会洲安震涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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