Vacuum freeze drying type solid-liquid separation method

A technology of vacuum freeze-drying and solid-liquid separation, applied in separation methods, chemical instruments and methods, sublimation, etc., can solve the problems of low automation, poor safety, and poor accuracy, and achieve high automation, good airtightness, and safety The effect of high coefficient

Inactive Publication Date: 2020-10-16
应急管理部化学品登记中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problems of low degree of automation, poor safety and poor accuracy in the pr

Method used

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  • Vacuum freeze drying type solid-liquid separation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for vacuum freeze-drying solid-liquid separation, adopting vacuum freeze-drying solid-liquid separation device to carry out solid-liquid separation, said device (such as figure 1 , figure 2 Shown) comprises separation area, cold trap, vacuum system, steam generator, and described separation area comprises lyophilization bottle, channel, collection bottle, channel is used for connecting lyophilization bottle and collection bottle, is provided with vacuum system and collection bottle on the channel The pipeline connected to the steam generator, the receiving bottle is placed in the cold trap, the freeze-dried bottle is placed on the upper surface of the top of the cold trap, the condensation tube is coiled in the cold trap, the separation area, cold trap, vacuum system, steam generator and related control equipment It is connected with the control software workstation; when performing solid-liquid separation, it includes the following steps: (1) Place the solid-...

Embodiment 2

[0045] A device for vacuum freeze-drying solid-liquid separation, said device (such as figure 1 , figure 2 Shown) comprises separation area, cold trap, vacuum system, steam generator, and described separation area comprises lyophilization bottle, channel, collection bottle, channel is used for connecting lyophilization bottle and collection bottle, is provided with vacuum system and collection bottle on the channel The pipeline connected to the steam generator, the receiving bottle is placed in the cold trap, the freeze-dried bottle is placed on the upper surface of the top of the cold trap, the condensation tube is coiled in the cold trap, the separation area, cold trap, vacuum system, steam generator and related control equipment It is connected with the control software workstation; when performing solid-liquid separation, it includes the following steps: (1) Put 1L of sulfur-containing sludge leaching suspension (solid-liquid ratio is 1:10) into a freeze-dried bottle and ...

Embodiment 3

[0066] A device for vacuum freeze-drying solid-liquid separation, said device (such as figure 1 , figure 2 Shown) comprises separation area, cold trap, vacuum system, steam generator, and described separation area comprises lyophilization bottle, channel, collection bottle, channel is used for connecting lyophilization bottle and collection bottle, is provided with vacuum system and collection bottle on the channel The pipeline connected to the steam generator, the receiving bottle is placed in the cold trap, the freeze-dried bottle is placed on the upper surface of the top of the cold trap, the condensation tube is coiled in the cold trap, the separation area, cold trap, vacuum system, steam generator and related control equipment It is connected with the control software workstation; when performing solid-liquid separation, it includes the following steps: (1) 1L of waste hydrochloric acid leach solution (solid-liquid ratio is 1:10, the main component of waste salt is sodiu...

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PUM

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Abstract

The invention relates to a vacuum freeze drying type solid-liquid separation method, and mainly solves the problems of low automation degree, poor safety and poor accuracy in the prior art. Accordingto the technical scheme, the vacuum freeze drying type solid-liquid separation method is adopted, the vacuum freeze drying type solid-liquid separation device is adopted for solid-liquid separation, the device comprises a separation area, a cold trap, a vacuum system and a steam generator, the problems are well solved, and the vacuum freeze drying type solid-liquid separation method can be used for solid-liquid separation in the detection industry.

Description

technical field [0001] The invention relates to a method for vacuum freeze-drying solid-liquid separation. Background technique [0002] In the daily testing activities, a problem was encountered: the extraction solution prepared according to the testing standards was difficult to carry out in the step of filtration and separation. Operation 1 is to mix the prepared leaching solution with an appropriate amount of sludge and soil samples in an extraction bottle, and place it on an overturning shaker for full oscillation. The extract is then filtered through a vacuum filter or a positive pressure filter with a 0.6-0.8 μm filter membrane. Operation 2 is that the extraction process takes place in the zero headspace extractor (hereinafter referred to as ZHE). After the vibration extraction, the pressure is slowly increased to collect the filtrate. [0003] The above operations are the standards issued by the Ministry of Environmental Protection HJ / T 299-2007 "Solid Waste Leachi...

Claims

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Application Information

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IPC IPC(8): B01D7/00
CPCB01D7/00
Inventor 王梅颖王倩王海兵林世东
Owner 应急管理部化学品登记中心
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