Lengthened scraping film type rotary channel enhanced-extraction device and application thereof

An extraction equipment and micro-channel technology, which is applied in the field of extended scraping-film rotating micro-channel enhanced extraction equipment, can solve the problems that the organic phase cannot be clarified and extracted in time, the surface tension of the dispersion system is low, and the droplet size is small. Phase time, broaden the scope of application, increase the effect of residence time

Active Publication Date: 2019-03-01
SICHUAN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there are the following problems in the existing emulsification extraction technology: (1) the obtained droplet size is small, (2) the surface tension of the dispersion system is low, and the relatively stable W / O emulsion cannot achieve gravity sedimentation in a short time to achieve rapid breakdown. Milk, unable to obtain the required clarified extracted organic phase and raffinate aqueous phase in time

Method used

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  • Lengthened scraping film type rotary channel enhanced-extraction device and application thereof
  • Lengthened scraping film type rotary channel enhanced-extraction device and application thereof
  • Lengthened scraping film type rotary channel enhanced-extraction device and application thereof

Examples

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Embodiment 1

[0038] In this example, the rotatable wiped-film microchannel reactor was used to extract and purify the chromium solution containing 200 ppm. Extraction agent and process parameters during extraction: the extraction agent is prepared from ethylhexyl phosphate mono-2-ethylhexyl (P507) and kerosene at a volume ratio of 3:7, and the volume ratio of chromium solution to extraction agent is 1: 1. The extraction temperature is 25°C, the rotation speed of the inner cylinder is 300r / min, and the extraction time is 15s, 30s, 45s, 60s, 90s, and 120s.

[0039] The extraction operation is as follows: Preheat the purified chromium solution and extractant to 25°C respectively, and then send the preheated purified chromium solution and extractant into the inner cylinder 3 through the upper feed port 5 and the lower feed port 2 respectively In the gap with the outer cylinder 4, when the gap is filled with liquid, the drive motor 7 is turned on at the same time to make the inner cylinder roto...

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Abstract

The invention provides a lengthened scraping film type rotary channel enhanced-extraction device and application thereof. The lengthened scraping film type rotary channel enhanced-extraction device comprises a supporting frame, an internal cylinder and an external cylinder sleeving the outside of the internal cylinder. The top of the supporting frame is provided with a rotary part, the bottom of the rotary part is connected with the external cylinder, the external cylinder and the internal cylinder can rotate in the range of 0-90 degrees along a vertical line under the effect of the rotary part. The gap between the external cylinder and the internal cylinder is 0.15-0.35 mm. the top of the internal cylinder is connected with a rotary shaft, the rotary shaft is arranged at the bottom of therotary part and is connected with a motor, and the rotary shaft, the internal cylinder and the external cylinder have the same central line. The outer wall of the internal cylinder is marked with a plurality of strips. The external cylinder is provided with an upper feeding port, a lower feeding port and a discharging port. The lengthened scraping film type rotary channel enhanced-extraction device is applied to a liquid-liquid extraction enhancing method, and the time for shortening extraction to achieve balance can be remarkably shortened.

Description

technical field [0001] The invention relates to an enhanced extraction device, in particular to an extended scraping film type rotating microchannel enhanced extraction device and its application. Background technique [0002] Emulsion extraction is to use an emulsifier to form a uniform and stable emulsion between the organic phase and the water phase. Emulsion extraction has great advantages in improving the extraction process, increasing the two-phase contact area, increasing the extraction rate, reducing the extraction equipment and shortening the extraction equilibrium time. However, there are the following problems in the existing emulsification extraction technology: (1) the obtained droplet size is small, (2) the surface tension of the dispersion system is low, and the relatively stable W / O emulsion cannot achieve gravity sedimentation in a short time to achieve rapid breakdown. Milk, unable to obtain the required clarified extracted organic phase and raffinate aque...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/04
CPCB01D11/0415Y02P10/20
Inventor 罗建洪马睿范椿欣李军
Owner SICHUAN UNIV
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