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Sleeve type high-temperature and high-pressure resistant extracting pool and external member used for solvent extraction

An extraction pool and high-temperature-resistant technology, which is applied in solvent extraction, chemical instruments and methods, and separation methods, can solve problems that cannot be applied and are not conducive to extraction and analysis of trace samples, and achieve simplified processing, easy inertization, and materials used. Reduced effect

Active Publication Date: 2008-03-19
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diane’s accelerated solvent extraction pool has a volume of 1mL-100mL, which is concentrated to 0.05 to 2mL by nitrogen blowing, and then 1 microliter or 20 microliters are taken for gas chromatography or liquid chromatography for sample analysis, and the sample utilization rate is about 0.2%. ~4%, the amount of solvent used is 2mL-150mL, which is not conducive to the extraction and analysis of trace samples, nor can it be applied to the online analysis of gas chromatography

Method used

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  • Sleeve type high-temperature and high-pressure resistant extracting pool and external member used for solvent extraction
  • Sleeve type high-temperature and high-pressure resistant extracting pool and external member used for solvent extraction
  • Sleeve type high-temperature and high-pressure resistant extracting pool and external member used for solvent extraction

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Referring to Fig. 1, Fig. 2 and Fig. 3, an extraction cell that can carry out solvent extraction of organic matter in solid or semi-solid samples under high temperature and high pressure mainly consists of an extraction cell pressure cap 100, a sealing ring pressure cap 200, a sample The pool 300, the sample pool fixing sleeve 400, and the sealing kit 500 used for filling samples in the sample pool and sealing for storage are composed of five parts.

[0043] 1) The pressure cap of the extraction tank is made of stainless steel, and the lower end has a sealing knife edge 102, which can be crimped and sealed with the sealing ring 201;

[0044] The upper end of the pressure cap of the extraction cell has a guiding and positioning cone groove 106, which is used for automatic positioning when the external solvent conduction joint is inserted into the pressure cap of the sample cell to achieve static pressure sealing. There is a '○' ring groove 103 at the lower end of the con...

Embodiment 2

[0062] Referring to Fig. 1, Fig. 2 and shown in Fig. 3, a kind of telescopic micro-extraction cell that can be combined with gas chromatography to carry out on-line detection, the cell body adopts the same design and material as in Example 1, and the size of the sample cell is an inner diameter of 2 -5mm, length 3-10mm, maximum working pressure 20Mpa, maximum working temperature 200℃.

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Abstract

The invention relates to a sample extraction device which is a sleeve typed high temperature and high pressure resistance extraction tank used for solvent extraction. The invention contains an extraction tank pressure cap, a sealing ring pressure cap, a sample tank, a sample tank fixed sleeve, a sealing ring, a porous filter and so on. The sample tank is in a pot structure. One end of the cavity of the sample tank is a close typed conical structure. The sample tank fixed sleeve is sheathed outside of the sample tank. The two ends of the sample tank fixed sleeve are separately connected with extraction tank pressure cap in screw-threaded connection. The sealing ring pressure cap is arranged between the two ends of the sample tank fixed sleeve and the extraction tank pressure cap. The sealing ring is arranged inside the sealing ring pressure cap. The porous filter is arranged on the sealing ring. A convex sealing knife edge is arranged on the two end faces of the sample tank. Correspondingly, a convex pressure cap sealing knife edge is arranged on the pressure cap. The sealing ring is arranged between the sealing knife edge and the pressure cap sealing knife edge. The invention is convenient to be used and has low manufacture cost and use-cost.

Description

technical field [0001] The invention relates to a sample extraction device, specifically a high-pressure and high-temperature extraction cell for solvent extraction, which is suitable for extracting organic matter in solid or semi-solid samples under heating and pressure conditions for the next step of analysis . The structure of the extraction pool of the present invention is also suitable for miniaturization, and can be made into a small-scale extraction pool of 100 microliters, so as to realize online use with a chromatograph. Background technique [0002] The sample analysis process includes several steps such as sampling, sample preparation and processing, analysis and measurement, and data processing. Through statistics, it is found that the time required for sample processing accounts for 61% of the entire analysis process, while the time for analysis and determination only accounts for 6%. Sample preparation The time was 10 times that measured by the analysis. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/00
Inventor 关亚风廉玫李金祥赵景红
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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