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A kind of antimony gold complex resource collaborative smelting method

A smelting method and complex technology, applied in the direction of improving process efficiency, etc., can solve the problems of precious metal loss, precious metal gold and silver loss, low antimony recovery rate, etc., and achieve the effect of efficient recovery and high recovery rate

Active Publication Date: 2022-07-29
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process also has the volatilization of antimony oxide, and the precious metal gold and silver are all lost in the slag
[0006] From the above analysis, it can be known that the oxygen-enriched smelting process for antimony ore in the prior art has problems such as low antimony recovery rate and serious loss of precious metals. method

Method used

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  • A kind of antimony gold complex resource collaborative smelting method
  • A kind of antimony gold complex resource collaborative smelting method
  • A kind of antimony gold complex resource collaborative smelting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 As shown, a method for synergistic smelting of complex resources of antimony and gold includes the following steps:

[0037] (1) Grind antimony-containing gold ore and stibnite (grind to 200 mesh) and dry in a vacuum drying oven at 60°C for 60 min to obtain pre-treated ore. Antimony 23.4% (mass content), gold 20.07g / t, silver 50.49g / t;

[0038] (2) 600g of pretreated ore material, 30g of quicklime, 80g of iron ore, and 20g of quartz sand are sent into a lift-type crucible resistance furnace for oxygen-enriched molten pool smelting. The smelting raw material composition table is shown in Table 1. By adjusting the experimental parameters, the oxygen concentration in the oxygen-enriched gas is 50% and the oxygen flow rate is 150m 3 / s, the smelting temperature of the molten pool is 1100 °C, and the smelting time of the molten pool is 50 minutes to obtain high-temperature arsenic-antimony flue gas and precious metal slag;

[0039] (3) Control the condensati...

Embodiment 2

[0046] like figure 1 As shown, a method for synergistic smelting of complex resources of antimony and gold includes the following steps:

[0047] (1) Grind antimony-containing gold ore and brittle sulphur-lead-antimony ore (grind to 200 mesh) and then dry it in a vacuum drying oven at 60°C for 60 minutes to obtain pretreated ore. The treated ore contains 8.92% antimony, 19.24g / t gold and 373.4g / t silver;

[0048] (2) 900g of pretreated mineral material, 45g of quicklime, 120g of iron ore, and 30g of quartz sand will be sent into a lift-type crucible resistance furnace for oxygen-enriched molten pool smelting, and the smelting raw material composition table is shown in Table 2. By adjusting the experimental parameters, the oxygen concentration in the oxygen-enriched gas is 55%, and the oxygen flow rate is 200 m 3 / s, the melting temperature of the molten pool is 1200 °C, and the melting time of the molten pool is 50 minutes, to obtain high-temperature arsenic-antimony flue ga...

Embodiment 3

[0056] like figure 1 As shown, a method for synergistic smelting of complex resources of antimony and gold includes the following steps:

[0057] (1) Grind antimony-containing gold ore (grind to 200 mesh) and then dry it in a vacuum drying oven at 60°C for 60 minutes to obtain pretreated ore. The pretreated ore contains 3.82% antimony, 39.42g / t gold, and 99.21g / t silver. ;

[0058] (2) 800g of pretreated mineral material, 50g of quicklime, 70g of iron ore, and 30g of quartz sand will be sent into a lift-type crucible resistance furnace for oxygen-enriched molten pool smelting, and the smelting raw material composition table is shown in Table 3. By adjusting the experimental parameters, the oxygen concentration in the oxygen-enriched gas is 60%, and the oxygen flow rate is 250 m 3 / s, the melting temperature of the molten pool is 1250 °C, and the melting time of the molten pool is 50 minutes, to obtain high-temperature arsenic-antimony flue gas and precious metal slag;

[00...

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Abstract

A method for synergistic smelting of complex resources of antimony and gold, comprising the following steps: (1) mixing at least one of stibnite, brittle sulphur lead-antimony and antimony-containing gold ore, grinding and drying to obtain pretreated mineral material; (2) ) Mixing the pretreated ore and flux into the smelting furnace, feeding oxygen-enriched air for heating and smelting, to obtain high-temperature arsenic-antimony flue gas and precious metal slag; (3) adopting step-by-step condensation treatment of high-temperature arsenic-antimony flue gas to obtain antimony respectively , arsenic soot; (4) adding precious metal slag and metal lead into the smelting furnace, blowing air for reduction smelting, trapping precious metal by lead to obtain precious lead and tailings for capturing precious metal; (5) adding precious metal trapping Precious lead is subjected to vacuum distillation to obtain precious metal phase and lead vapor, and lead vapor is condensed to obtain lead powder. The invention realizes the synergistic smelting of precious metal and antimony, and can recover antimony and precious metal respectively, and the recovery rate of antimony and precious metal gold and silver is high.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal metallurgy, in particular to a method for treating antimony ore. Background technique [0002] There are more than 120 kinds of antimony-containing minerals in nature, but only a few kinds of sulfide ores are used as raw materials for antimony smelting. At present, in industrial practice, mainly stibnite and brittle lead-antimony are smelted to produce antimony white and metal antimony. The antimony sulfide ore treatment process is divided into fire process and wet process. Antimony is mainly smelted by blast furnace volatilization and reduced by reverberatory furnace. This process will produce low-concentration sulfur dioxide pollution; blast furnace coke rate is high, which makes energy consumption high; reflection The thermal efficiency of the furnace process is low, the volatilization of antimony oxide powder is large, and the direct yield of antimony is low. The brittle sulfur lead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B30/02C22B30/04C22B11/02C22B13/02C22B7/02C22B7/04
CPCC22B30/02C22B30/04C22B11/02C22B13/02C22B7/02C22B7/04C22B7/001Y02P10/20
Inventor 王亲猛郭学益王琼琼田庆华田苗李中臣张倍恺
Owner CENT SOUTH UNIV
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