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生产工艺英文版
Pyrometallurgical:
Also known as
dry smelting, the ore and the necessary
additives
together
in
a
furnace
heated
to
high
temperatures, melting into a liquid to
produce the required
chemical
reactions,
thereby
separating
the
crude
metal,
and
then rough metal refining.
Hydrometallurgy):
Is
acid.
Base.
Salt
water
solution,
using
chemical
methods
to
extract
the
required
metal
from
ore
components, and then use various
methods of electrolytic
solution
Preparation of metal, the main application of this
method
is
difficult
in
low
capacity
of
taste
or
slightly
powdered ore.
Chapter I: Copper Production Technology
Copper
raw
material:
1>
Natural
Copper:
99%
copper
content, but very few reserves.
2
3
is the main raw material for copper.
Pyrometallurgical:
calcination
(roasting
)-----
melting
(smelting) --- blowing (blowing) ---
refining (refining)
Roasting:
Remove
some
of
concentrate
sulfur,
arsenic
and other volatile
parts of the impurities ------.> ___ sulfur
concentrate
smelting
----.>
1.
Sulfur
content
is
low,
get
blister copper, sulfur
for a long time, the generated matte,
copper
(40%
-
55%),
2.
slag
material:
copper
generally
0.4% - 0.5%.
Matte ---- --- à
blowing by blister, copper 95% -98%, residue
materials: containing lead, zinc, lead
flue gas. Sulfur. Zn.
Blister-à
refined by copper
concentrate (99% -99.9%), slag:
copper
higher.
Wet
Copper:
roasting
(roasting)
---
leaching
purification
(leaching) --- Electrolyzation
(electrowinning)
Sulfide copper concentrate
(20% -30 %)--- roasting -> be
soluble in dilute sulfuric acid, copper
sulfate, sulfur from
flue
gas
of
lead,
copper
slag
containing
lead
and
zinc.
Copper
sulfate leach purification- ----- purpose to
remove
iron, then power integral
method, by Ingredients: electric
copper: 99.5% -99.95%, slag material:
platinum metal with
gold and silver,
lead
Chapter
II:
lead
smelting
production
process
Fire refining of lead: lead sulfide
concentrate roasting ----
sintering -
à
be agglomeration of lead, lead 40%
-50%, slag
material:
lead.
Copper.,
Smoke
containing
lead
and
zinc.
---
Lead Sinter changes into Crude lead through
smelting
reduction.
lead
about
98% .slag
(slag):
Some
Gold
and
other metals of lead
zinc, lead flue gas. --- Fire refining of
crude lead à
be refined lead
(99.9%), slag material: Copper:
0.001%
- 0.002%, Zn: 0.6% -0.7%.
Wet smelting of lead: lead
sulfide concentrate roasting à
lead
sulfate
---
---
Blast
Furnace
(blast
furnace)
by
crude