Device and method for measuring organic matters entrained in water phase in solvent extraction process

A technology for organic matter in water phase, applied in the fields of chemical industry and metallurgy, can solve the problems of inability to directly measure the concentration of organic matter, high cost, complicated operation process, etc., to achieve the effect of easy observation and measurement, and easy observation

Inactive Publication Date: 2015-02-04
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a device and method for metering organic matter in the water phase of the solvent extraction process. The device and method for metering the organic matter in the water phase of the solvent extraction process solve the problem of In the prior art, the method for measuring the organic matter entrained in the water phase is complex in operation, high in cost, and cannot directly measure the concentration of organic matter.

Method used

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  • Device and method for measuring organic matters entrained in water phase in solvent extraction process
  • Device and method for measuring organic matters entrained in water phase in solvent extraction process

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Embodiment 1

[0027] The present invention is a device for metering organic matter entrained in the water phase of the solvent extraction process, which is composed of a closed container 1, the inside of the container 1 is a hollow structure, and a feeding column 2 is arranged in the container 1. Both ends of the charging column 2 are open, the upper end of the charging column 2 protrudes from the container 1, the charging column 2 is perpendicular to the bottom of the container 1, and the top of the container 1 A capillary 3 is arranged in the center, the two ends of the capillary 3 are open, the capillary 3 communicates with the inside of the container 1 , and the side wall of the capillary 3 is provided with a scale.

[0028] Further, the top of the container 1 is arc-shaped.

[0029] Further, the lower end of the feeding column 2 is close to the bottom of the container 1 .

[0030] Further, the lower end of the feeding column 2 is close to and perpendicular to the bottom of the contain...

Embodiment 2

[0034] 1) After the extraction or stripping operation, the water phase is separated, and the water phase is injected into the instrument from the feeding column to the calibrated scale. After each operation, keep the same liquid level scale. No air bubbles can be generated during the feeding process, and the liquid levels of the two tubes should be kept at the same level.

[0035] 2) Put the special separation device equipped with the water phase into the centrifuge, and control the speed of the centrifuge to centrifuge for a certain period of time. Under the action of centrifugal force, oil and water are separated to form an organic liquid column in the capillary.

[0036] 3) Read the height of the organic phase directly according to the scale indication on the capillary or measure the height with a vernier caliper. Before use, inject water to the scale to obtain the total volume, and finally convert the column height into volume to obtain the volume content of the organic ...

Embodiment 3

[0041] Present embodiment at first weighs the weight of the device of the present invention, then injects into centrifuge bottle 1 with distilled water (as figure 1 Shown), mark and weigh after reaching a certain liquid level in the capillary. According to the formula V=(M1-M2) / ρ, the weight difference before and after adding water calculates the used separation device volume of the present invention, and its volume is 30.21ml. Then simulate the copper solvent extraction process, use the organic phase containing different concentrations of extractant Lix984N and the copper ore leaching solution (PH 2.0) to mix and extract according to the volume ratio of 1:1, the stirring time is 8 minutes, the stirring speed is 400r / min, and the extraction operation is separated. A raffinate was obtained. The raffinate is fed from column 2 (such as figure 1 shown) into the calibrated scale. Then centrifuge for 10 min, and the speed is controlled at 3000 r / min. Under the action of centrifu...

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Abstract

A device for measuring organic matters entrained in water phase in solvent extraction process comprises a closed container, a feeding column is arranged in the container, the a feeding column is perpendicular to the bottom of the container, the center of the top of the container is provided with a capillary, the capillary is connected with the internal part of the container, and a scale is arranged on the side wall of the capillary. The invention also provides a method for measuring the organic matters entrained in the water phase in the solvent extraction process, the method is as follows: to-be-measured water phase is injected into the container to the marked scale, the container is put into a centrifuge for centrifugal separation, an organic liquid column is formed in the capillary, the organic phase height is directly read in accordance with directed scale on the capillary, the organic phase height in the capillary is converted into volume, the volume is divided by the volume of the injected water phase for calculation to obtain the concentration of the organic matters entrained in the water phase. The method provides a new feasible method to detect the content of the organic matters in the water phase after extraction or reverse extraction, and is very efficient, fast and convenient.

Description

technical field [0001] The invention belongs to the fields of chemical industry and metallurgy, and in particular relates to a method for measuring organic matter, in particular to a device and method for measuring organic matter entrained in a water phase in a solvent extraction process. [0002] Background technique [0003] Solvent extraction or liquid-liquid extraction is a method of transferring a solute substance from one solvent to another by using the difference in solubility or distribution coefficient of the extractant in two immiscible (or slightly soluble) solvents. . Extraction technology is widely used in industries such as chemistry, metallurgy, food and atomic energy. The extractant is used as the separation medium in the extraction process, and is recycled in the extraction-stripping process. In the application of large-scale industrial production, such as the hydrometallurgy industry and the field of pharmaceutical production, the use and consumption of ...

Claims

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Application Information

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IPC IPC(8): G01N30/00
Inventor 刘晓荣余华龙刘妍君申君辉李惠池道杰
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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