A group of adsorption towers for extracting lithium from salt lake brine

Abstract

The invention discloses an adsorption tower group for extracting lithium from salt lake brine. The adsorption tower group comprises a base, wherein an inspection hole and an emptying opening are respectively formed in the side wall of the base; two or more adsorption towers which are longitudinally connected in series are arranged at the top of the base; each adsorption tower comprises an adsorption tower body; an upper head is arranged at the top of the uppermost adsorption tower body; a lower head is arranged at the lower part of the adsorption tower body connected with the base; a separation head is arranged between two adsorption tower bodies which are connected in series; a vent nozzle is formed in the upper part of a liquid outlet in the side wall of the upper part of the adsorptiontower body; a man hole is further formed in the upper part of the side wall of each adsorption tower body; a vent nozzle is formed in the top of the upper head of each adsorption tower; the tower is filled with an adsorbent. The adsorption tower group has the advantages that adsorption, washing and desorption operations can be accomplished in one tower, the transportation frequency of a pump can be reduced, the operation energy consumption is low, the dosage of the adsorbent is small, and occupied space and civil engineering equipment investment are reduced.

Description

technical field [0001] The invention relates to an adsorption device, in particular to an adsorption tower group with a multi-tower stacked structure for extracting lithium from high-magnesium and low-lithium brine. Background technique [0002] Lithium has a wide range of uses and can be used as a deoxidizer in the metallurgical industry; lithium can also be used as a component of lead-based alloys and light alloys such as beryllium, magnesium, and aluminum; lithium has important uses in the atomic energy industry; it is also used to make lithium batteries, lithium An important raw material for ion batteries. [0003] my country's salt lake brine, especially the old salt lake brine, has the characteristics of high magnesium-lithium ratio. Extracting lithium from salt lake brine by adsorption can greatly improve the comprehensive utilization rate of resources and create huge economic value. [0004] Salt lake lithium extraction technology is the key to the development of li...

AI Technical Summary

Problems solved by technology

This scheme adopts a single-layer structure, and is a single-tower adsorption method, which requires high equipment pressure, large return volume, and low efficiency, which is not conducive to continuous production operations.

Images