Method for extracting multiple metals
An extraction method and multi-metal technology, applied in the field of metal extraction, can solve the problems of energy consumption, high cost pollution, and inability to recycle at one time, and achieve the effects of high energy utilization rate, high metal reduction rate, and high metal extraction rate
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Embodiment 1
[0029] 1) Tin-containing iron ore (tin content: 1.23%, iron content: 54.85%), the tin-containing iron ore with an average particle size of 0.178 mm and the processed coal particles with a particle size of 1 mm to 4 mm (reducing agent ) and a smoke agent with an average particle size of 0.074, mixed with additives, stirred evenly, and then pelletized with a pelletizer; wherein, the smoke agent is MgCl 2 and CaCl 2 , among additives, NaCl is used as catalyst, Na 2 SiO 4 As a forming agent, CaCO 3 as an absorbent. The weight ratio of tin-containing iron ore to coal particles, smoke agent and additive is 5:1:1:1. Wherein, the coal particles used in this step may have a particle size of any value from 1mm to 4mm, such as 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm and so on.
[0030] 2) The finished ore balls are evenly arranged on the fuming trolley by the distribution machine, sent into the fuming reduction furnace for heating, heated to 1000°C, and kept at this temperature, tin and ot...
Embodiment 2
[0034] 1) Zinc-containing iron ore (zinc content: 1.22%, iron content: 54.89%), the zinc-containing iron ore with an average particle size of 0.52 mm and the processed coal particles with a particle size of 1 mm to 3 mm (reducing agent ) and the fuming agent and additives with an average particle size of 0.076mm are mixed and stirred evenly, and pelletized with a pelletizer; wherein, the fuming agent is CaCl 2 , additives, SiO 2 As a catalyst, Na 2 SiO 4 As a forming agent, CaF 2as an absorbent. The weight ratio of zinc-containing iron ore to coal particles, smoke agent and additive is 6:2:1:0.5. Wherein, the coal particles used in this step may have a particle size of any value from 1mm to 3mm, such as 1mm, 1.3mm, 2mm, 2.6mm, 3mm and so on.
[0035] 2) Send it into the fuming reduction furnace for heating, heat to 950°C, keep this temperature, the non-ferrous metal elements such as zinc in the ore balls will react with the fuming agent for fuming, and after 90 minutes of...
Embodiment 3
[0039] 1) Lead-containing iron ore (lead content: 0.93%, iron content: 57.22%), the lead-containing iron ore with an average particle size of 0.35 mm and the processed coal particles with a particle size of 2 mm to 4 mm (reducing agent ) and the fuming agent and additives with an average particle size of 0.083 mm are mixed and stirred evenly, and pelletized with a pelletizer; wherein, the fuming agent is MgCl 2 , among additives, NaCl is used as catalyst, Na 2 SiO 4 As a forming agent, CaHCO 3 as an absorbent. The weight ratio of lead-containing iron ore to coal particles, fuming agent and additive is 6:3:2:1. Wherein, the coal particles used in this step may have a particle size of any value in the range of 2 mm to 4 mm, such as 2 mm, 2.3 mm, 2.7 mm, 2.8 mm, 3 mm, 3.5 mm, 4 mm, and the like.
[0040] 2) Send it into the fuming reduction furnace for heating, heat it to 1150°C, keep this temperature, the non-ferrous metal elements such as lead in the ore ball will react wit...
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