ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTS
DechemaAchema 2018 Review
Sustainability, digitalization and flexible production approaches emerged as major themes…
CHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
CADWorx & Analysis SolutionsFocus on Software
Software enables interactive analytics on collected data This company recently…
NEW PRODUCTS + Show More

Comment

Lithium from coal

By Paul Grad |

Coal could become a major source of lithium, according to a team led by professor Shenjun Qin, of Hebei University of Engineering (Handan, China; www.hebeu.edu.cn). From available data, the concentration of lithium in most coal varies between 10 and 50 µg/g. For example, the concentration of lithium in flyash samples is between 65 and 287 µg/g in South Africa and an average of 46 µg/g in China. Using two analytical techniques — inductively coupled plasma mass spectroscopy (ICP-MS), and ICP atomic emission spectroscopy (ICP-AES) — the team has found Li dispersed, and even anomalously enriched in coal deposits. But in general, it says the analysis for Li has been largely neglected, with no specific discussion reported regarding Li concentrations in coal and coal ash. The team has also applied two techniques for lithium or aluminium extraction from coal ash. The first involves sintering the ash with sulfur, followed by acid leaching the metal (Li or Al) from the solution. With this extraction process, up to 60% of the metal has been recovered as Li2CO3, with a yield of 95.6%. An alternative technique, alkali sintering, avoids the need for the sulfur step, but has shown a lower yield (85.3% yield, with a metal recovery of 55%). “Although…
Related Content
Australian minerals shipped to South Korea
Battery metals producer Australian Mines (Perth, Western Australia; www.australianmines.com.au) is scheduled to export the largest sample of battery-grade cobalt and…
Extracting lithium without roasting
Lithium Australia NL (Perth, Western Australia; lithium-au.com) has generated 99.8% (battery-grade) lithium carbonate from lithium-bearing silicates, such as spodumene, using…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability
Detect and correct anomalies early in your batch processes
ABB at ACHEMA 2018

View More

Live chat by BoldChat