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X. Wu
• Reducing energy consumption, substituting coke with coal, and supplementing
small amounts of crushed coals as fuel;
• High sealing performance of the furnace and good on-site environment.
Copper Smelting Waste Treatment
In order to verify the feasibility of CSC technology and equipment to treat copper smelting waste slag, investigate various process parameters and provide basis
for the industrialization of CSC technology to treat copper smelting waste slag,
a commercial-scale experimental research on recovering copper and cobalt from
copper smelting waste slag was carried out in 2014.
(1) Test furnace type: Single-area CSC smelting furnace with an area of 1 m
2 .
(2) Test capacity: 40–50 t/d.
(3) Technological process: Copper cobalt slag, flux, and coal are added to CSC
smelting furnace after being batched. The temperature in the furnace is controlled to 1400 °C, and the combustion coefficient is 0.5–0.7. Coal is used as
fuel and reducing agent. Copper cobalt is reduced to metal phase through reduction reaction, and separated from slag in the furnace, so copper cobalt alloy and
smelting slag are produced. The flue gas is discharged after being cooled and
collected. See Fig. 8 for process flow.
(4) Test results: The commercial test shows that the commercial test system of CSC
technology in copper smelting slag treatment runs continuously and stably. It
Fig. 8 +CSC process flow chart of copper-cobalt slag treatment
X. Wu
• Reducing energy consumption, substituting coke with coal, and supplementing
small amounts of crushed coals as fuel;
• High sealing performance of the furnace and good on-site environment.
Copper Smelting Waste Treatment
In order to verify the feasibility of CSC technology and equipment to treat copper smelting waste slag, investigate various process parameters and provide basis
for the industrialization of CSC technology to treat copper smelting waste slag,
a commercial-scale experimental research on recovering copper and cobalt from
copper smelting waste slag was carried out in 2014.
(1) Test furnace type: Single-area CSC smelting furnace with an area of 1 m
2 .
(2) Test capacity: 40–50 t/d.
(3) Technological process: Copper cobalt slag, flux, and coal are added to CSC
smelting furnace after being batched. The temperature in the furnace is controlled to 1400 °C, and the combustion coefficient is 0.5–0.7. Coal is used as
fuel and reducing agent. Copper cobalt is reduced to metal phase through reduction reaction, and separated from slag in the furnace, so copper cobalt alloy and
smelting slag are produced. The flue gas is discharged after being cooled and
collected. See Fig. 8 for process flow.
(4) Test results: The commercial test shows that the commercial test system of CSC
technology in copper smelting slag treatment runs continuously and stably. It
Fig. 8 +CSC process flow chart of copper-cobalt slag treatment