sulfuric acid solution and precipitated to obtain Al (OH)
3
. When the pH value is above 9.0, most of the
aluminum precipitates, and the obtained Al (OH)
3
can reach the level of chemical purity after
analysis.
The filter residue is dissolved with sulfuric acid and hydrogen peroxide, so that lithium iron phosphate
enters the solution in the form of Fe
2
(SO
4
)
3
and Li
2
SO
4
, and is separated from carbon black and
carbon coated on the surface of lithium iron phosphate. After filtration and separation, the pH value
of the filtrate is adjusted with NaOH and ammonia water. First, iron is precipitated with Fe (OH)
3
, and
the remaining solution is precipitated with saturated Na
2
CO
3
solution at 90
℃
.
Since FePO
4
is slightly dissolved in nitric acid, the filter residue is dissolved with nitric acid and
hydrogen peroxide, which directly precipitates FePO
4
, separates impurities such as carbon black
from acid solution, leaches Fe (OH)
3
from filter residue respectively, and precipitates Li
2
CO
3
with
saturated Na
2
CO
3
solution at 90
℃
.
2. Recovery of anode materials
The recovery process of anode materials is relatively simple. After the separation of anode plates,
the purity of copper can be more than 99%, which can be used for further refining electrolytic copper.
3. Recovery of diaphragm
The diaphragm material is mainly harmless, and has no recycling value.
4. List of recycling equipment:
Automatic dismantling machine, pulverizer, wet gold pool, etc.
10. Transportation Requirements
The battery products should be transported after packaging and during the transportation process,
severe vibration, impact or extrusion should be prevented to prevent sun and rain. It can be
transported using vehicles such as cars, trains and ships.
Always check all applicable local, national, and international regulations before transporting
a Lithium Iron Phosphate battery.
Transporting an end-of-life, damaged, or recalled battery may, in certain cases, be specially limited
or prohibited.
The transport of the Li-Ion battery falls under hazard class UN3480, class 9. For transport over
water, air and land, the battery falls within packaging group PI965 Section I.
Use Class 9 Miscellaneous Dangerous Goods and UN Identification labels for transportation of
Summary of Contents for SSIF2P15S48100C
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