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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 recovery rate of antimony, etc., and achieve the effect of efficient recovery and high recovery rate

Active Publication Date: 2021-06-11
CENT SOUTH UNIV
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  • 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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  • Antimony-gold complex resource collaborative smelting method
  • Antimony-gold complex resource collaborative smelting method
  • Antimony-gold complex resource collaborative smelting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a method for synergistic smelting of antimony-gold complex resources comprises the following steps:

[0037] (1) Grind antimony-containing gold ore and stibnite (ground to 200 mesh) and dry in a vacuum oven at 60°C for 60 minutes to obtain pretreated mineral materials. The amount of antimony-containing gold ore and stibnite is controlled in the pretreated mineral material Antimony 23.4% (mass content), gold 20.07g / t, silver 50.49g / t;

[0038] (2) Send 600g of pretreated mineral material, 30g of quicklime, 80g of iron ore, and 20g of quartz sand into a lifting crucible resistance furnace for oxygen-enriched molten pool smelting. The composition of smelting raw materials 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 melting pool temperature is 1100°C, and the melting pool melting time is 50 minutes, to obtain high-temperature...

Embodiment 2

[0046] Such as figure 1 As shown, a method for synergistic smelting of antimony-gold complex resources comprises the following steps:

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

[0048] (2) Send 900g of pretreated mineral material, 45g of quicklime, 120g of iron ore, and 30g of quartz sand into a lifting crucible resistance furnace for oxygen-enriched molten pool smelting. The composition of smelting raw materials 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 200m 3 / s, the melting pool temperature is 1200°C, and the melting pool melting time is 50 minutes to obtain high-temperature arsenic-antimony flue gas and precious metal slag; ...

Embodiment 3

[0056] Such as figure 1 As shown, a method for synergistic smelting of antimony-gold complex resources comprises the following steps:

[0057] (1) Grind the antimony-containing gold ore (ground to 200 mesh) and 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) Send 800g of pretreated mineral material, 50g of quicklime, 70g of iron ore, and 30g of quartz sand into a lift-type crucible resistance furnace for oxygen-enriched molten pool smelting. The composition of smelting raw materials 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 250m 3 / s, the smelting temperature of the molten pool is 1250°C, and the smelting time of the molten pool is 50 minutes to obtain high-temperature arsenic-antimony flue gas and precious metal slag;

[0059] (3) Control the...

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Abstract

The invention discloses an antimony-gold complex resource collaborative smelting method. The method comprises the following steps: (1) mixing at least one of stibnite and jamesonite with antimony-containing gold ore, grinding and drying to obtain pretreated ore charge; (2) mixing the pretreated ore charge with a fluxing agent, feeding the mixture into a smelting furnace, and introducing oxygen-enriched air for heating and smelting to obtain high-temperature arsenic-antimony flue gas and precious metal furnace slag; (3) performing step-by-step condensation treatment on the high-temperature arsenic-antimony flue gas to obtain antimony flue dust and arsenic flue dust respectively; (4) adding the precious metal furnace slag and metal lead into the smelting furnace, blowing in air for reduction smelting, and capturing precious metals through the lead to obtain precious lead into which the precious metals are captured and tailings; and (5) carrying out vacuum distillation treatment on the precious lead into which the precious metals are captured to obtain a precious metal phase and lead steam, and condensing the lead steam to obtain lead powder. According to the antimony-gold complex resource collaborative smelting method, cooperative smelting of the precious metals and antimony is achieved, antimony and the precious metals can be recovered respectively, and the recovery rate of antimony and the precious metals of gold and silver is high.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal metallurgy, and in particular relates to a treatment method of 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, antimony white and metallic antimony are mainly smelted from stibnite and stibnite. The antimony sulfide ore treatment process is divided into fire process and wet process. Antimony ore is mainly smelted by blast furnace volatilization and reverberatory furnace reduction. This process will produce low-concentration sulfur dioxide pollution; The thermal efficiency of the furnace process is low, the volatilization of antimony oxygen powder is large, and the direct recovery rate of antimony is low. The brittle sulfur-lead-antimony ore mainly adopts the smelting process of boiling furnace roasti...

Claims

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Application Information

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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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