Direct Lithium Extraction Technology Revealed
| Jerry Huang
A "Salt Lake Raw Brine Efficient Lithium Extraction Technology" presented by Minmetals Salt Lake Co., Ltd, was approved positive by experts from the Chinese Academy of Engineering in Beijing On May 26th, 2021.
The technology is claimed to be featured as:
- Salt field spreading is omitted, production period/term is reduced from 2 years into 20 days;
- Optimized combination of the membrane system has been improved;
- Device efficiency has been improved; fully automatic control of simultaneous separation of sodium, magnesium, potassium, deboration and extraction of lithium is achieved;
- Production capacity has been increased by 1.5 times;
- Power consumption has been reduced by more than 30%;
- Zero emissions of wasted or poisonous liquid, gas or solids;
- Overall cost is reduced by more than 10%, especially the total lithium extraction rate has been increased 2x, reaching more than 70%, comparing to current technology.
It is claimed that brine’s service life can be doubled and extended. At the same time, product quality has been further improved to match battery grades lithium salts for Li-ion battery industry.
Source: SPIR News