dingxinda
Yeni Üye
Kayıt Tarihi: 2021-13-Ocak
Aktif Durum: Pasif
Gönderilenler: 30
|
| Gönderen: 2021-26-Ocak Saat 09:27 | Kayıtlı IP
|
|
|
Lithium recovery from spent Li-ion batteries using
coconut shell activated
carboncoconu
t activated charcoal
Lithium is one of scarce natural resources in the world
that need to be preserve. One of the way in preserving
the resource is by recovery the rich source of the
lithium such as in the spent batteries. It is necessary
to develop a recovery method which is efficient and low-
cost to be able to recover the lithium in an economic
scale. In this study, low-cost activated carbon (AC) from
coconut shell charcoal was prepared by chemical and
physical activation methods and tested for Li removal
from Co, Mn, and Ni ions in semi-continuous columns
adsorption experiments. The maximum surface area is 365
m2/g with the total pore volume is 0.148 cm3/g that can
be produced by physical activation at 800 °C. In the
same activation temperature, activation using KOH has
larger ratio of micropore volume than physical
activation. Then, the adsorption capacity and selectivity
of metal ions were investigated. A very low adsorption
capacity of AC for Li ions in batch adsorption mode
provides an advantage in column applications for
separating Li from other metal ions.
pellets.com/">www.activated-carbon-pellets.com The
AC sample with chemical activation provided better
separation than the samples with physical activation in
the column adsorption method. During a certain period of
early adsorption (lag time), solution collected from the
column outlet was found to be rich in Li due to the fast
travel time of this light element, while the other
heavier metal ions were mostly retained in the AC bed.
The maximum lag time is 97.3 min with AC by KOH
activation at 750 °C.
|
Aktif Konular 
Üye Listesi 
Arama 
Yardım
Kayıt Ol 
Giriş
Gitar-tr.com FORUM : Gitar-tr.com Tanisma Toplantisi !!!
Konu: Using coconut shell activated carbon
