Unlock instant, AI-driven research and patent intelligence for your innovation.

A rare earth extraction system and method for erbium-containing wastewater

An extraction system and extraction method technology, which is applied in the field of rare earth extraction system of erbium-containing wastewater, can solve the problems of low product purity and inability to completely remove impurity elements, and achieve the effects of simplified procedures, less product loss and high yield

Active Publication Date: 2020-06-09
SHAOXING UNIVERSITY
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing shortcomings or deficiencies: Only by precipitation method to extract rare earth elements, impurity elements cannot be completely removed, resulting in low product purity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A rare earth extraction system and method for erbium-containing wastewater
  • A rare earth extraction system and method for erbium-containing wastewater
  • A rare earth extraction system and method for erbium-containing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1-8Shown, a kind of rare earth extraction system of erbium-containing wastewater provided in the present embodiment, this system comprises:

[0042] Waste water collection box 1, described waste water collection box 1 comprises the box body 1-2 of single side opening 1-1 and the cover body 1-3 that is used to seal the opening 1-1 of this box body 1-2; The inner cavity of -2 is provided with a partition 1-4, the partition 1-4 extends vertically from the surface of the cover 1-3 to the opposite side of the opening 1-1 of the box 1-2, and then bends and extends to the box 1-2; the inner cavity of the box body 1-2 is divided into an upper sealing chamber 1-5 and a lower circulation chamber 1-6 by a partition 1-4; a first The filter screen plate 1-7 and the second filter screen plate 1-8 are arranged successively on the flow path of the water flow, and the first filter screen plate 1-7 extends vertically from the surface of the partition plate 1-4 to the box...

Embodiment 2

[0062] The rare earth extraction system of a kind of erbium-containing waste water provided in the present embodiment, its general structure is consistent with embodiment 1, but after using for a long time, in order to facilitate the removal of accumulation on the first screen plate 1-7 and the second Filter the precipitated impurities between the screen plates 1-8, such as Figure 9 As shown, in the present embodiment, a waste material discharge pipe 1-15 is provided on the bottom surface of the box body 1-2, and the nozzle of the waste material discharge pipe 1-15 is located between the first filter screen plate 1-7 and the The lower flow chamber 1-6 between the inclined plates 1-9 is partly connected; a plug 1-16 for sealing the waste discharge pipe 1-15 is provided in the waste discharge pipe 1-15.

Embodiment 3

[0064] A kind of rare earth extraction system of erbium-containing wastewater provided in the present embodiment, its general structure is consistent with embodiment 2, as Figure 10 As shown, but the rare earth extraction system of a kind of erbium-containing wastewater provided by this embodiment also includes a waste water tank 4-7 for collecting the waste water of the adsorption device 4, and the waste water tank 4-7 is equipped with a device for detecting the The water quality detection system 4-8 of the waste water quality in the waste water tank 4-7, the waste water can be discharged directly after being tested to meet the standard.

[0065] The above-mentioned water quality detection systems 4-8 adopted the ultraviolet water quality detection technology.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
purityaaaaaaaaaa
Login to View More

Abstract

The invention relates to an erbium-containing wastewater treatment technology, in particular to a rare earth extraction system for erbium-containing wastewater. The rare earth extraction system comprises a wastewater collection tank, a pretreatment tank, an adsorption device, a desorption device, a reaction tank and an incineration device, a wastewater outlet pipe of the wastewater collection tankis in butt joint with a pretreatment tank liquid inlet pipe of the pretreatment tank, and a pretreatment tank liquid outlet pipe of the pretreatment tank is in butt joint with a solution inlet of theadsorption device; and a solution outlet of the desorption device is in butt joint with a reaction tank inlet of the reaction tank. Meanwhile, the invention also provides a rare earth extraction method for the erbium-containing wastewater. The rare earth extraction system and method achieve the technical aim of improving the recovery rate and purity of rare earth elements in the erbium-containingwastewater, and have the advantages that an adsorbent can be recycled many times, cost is saved, the product loss is small in the technological process, and the yield is high.

Description

technical field [0001] The invention relates to a treatment technology for erbium-containing wastewater, in particular to a rare earth extraction system and method for erbium-containing wastewater. Background technique [0002] The rare earth extraction method of erbium-containing wastewater in the prior art is as follows: after sedimentation, the erbium-containing wastewater is removed through a filter, and an alkaline precipitant (sodium carbonate and sodium bicarbonate mixture) is added to precipitate the rare earth elements in the wastewater, and dilute hydrochloric acid is used to Recovery of rare earths. [0003] The process steps of the above method: after collecting the erbium-containing wastewater, it is first passed into the sedimentation tank, and the supernatant is passed through the impurity filter to remove particulate impurities. A mixture of sodium carbonate and sodium bicarbonate is added to the waste water after impurities have been removed, the rare earth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B59/00C02F9/04
CPCC02F1/001C02F1/281C02F1/44C02F1/66C02F9/00C22B7/006C22B59/00Y02P10/20
Inventor 胡宁洋张芳佳江玲玲刘帅帅许玲霞方荧
Owner SHAOXING UNIVERSITY