-
E-mail
linxl@suntar.com
- Phone
-
Address
Sanda Technology Park
Product Categories
Sanda Membrane Environmental Technology Co., Ltd
Salt Lake Lithium Extraction Technology
NegotiableUpdate on 03/06
- Model
- Nature of the Manufacturer
- Producers
- Product Category
- Place of Origin
Overview
The lithium extraction technology from salt lakes is mainly distributed in the salt lakes of the Qinghai Tibet Plateau, and the exploitable salt lakes are mainly divided into sulfate salt lakes and carbonate salt lakes. Sanda Membrane has developed different membrane lithium extraction processes based on the characteristics of sulfate salt lakes and carbonate salt lakes through technological research and development.
Product Details
App Introduction
The lithium resources in China's salt lakes are mainly distributed in the salt lakes on the Qinghai Tibet Plateau, and the exploitable salt lakes are mainly divided into sulfate salt lakes and carbonate salt lakes. Sanda Membrane has developed different membrane lithium extraction processes based on the characteristics of sulfate salt lakes and carbonate salt lakes through technological research and development.
process flow
Old brine has high mineralization and is difficult to directly treat with membranes. It needs to be adsorbed first and then treated with nanofiltration membranes and reverse osmosis membranes to further remove impurities and enrich lithium ions.
Raw brine has low mineralization and can be directly treated with a membrane. After passing through one or more membrane systems, impurities are removed and lithium ions are concentrated.
The use of membrane technology for lithium extraction in sulfate salt lakes has the following advantages:
Salt lake brine with a mineralization degree of less than 20%, after pre filtration, can directly enter the membrane system. Through membrane treatment, impurities such as calcium, magnesium, sulfate ions, etc. can be effectively removed, greatly reducing the magnesium lithium ratio.
After membrane treatment, the magnesium lithium ratio of a certain salt lake brine can be reduced from 28:1 to 1.6:1, while the magnesium lithium ratio of other brines can be reduced to below 1:1.
The use of membrane technology for lithium extraction in carbonate salt lakes has the following advantages:
After pre filtration, it can directly enter the membrane system with ideal separation effect.
After filtration through a membrane system, the magnesium lithium ratio of a certain salt lake brine decreased to 0.36:1, and the carbonate lithium ratio decreased to 2:1. The effect is ideal.
