Method for efficiently collecting platinum group metals through mixing reduction smelting of iron powder and iron ores

A technology for platinum group metals and iron powder, which is applied in the field of mixed reduction and smelting of iron powder and iron ore to efficiently capture platinum group metals, and achieves the effects of easy industrialization, simple process and low cost

Inactive Publication Date: 2016-08-24
KUNMING METALLURGY COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for efficiently collecting platinum group metals through mixing reduction smelting of iron powder and iron ores

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Embodiment 1

[0034] See attached figure 1 , Conditions: 1000g of platinum group metal secondary resource material, the amount of collector iron powder and iron ore is 40% by weight of platinum group metal secondary resource material (wherein iron powder: magnetite concentrate = 2:1, reduction The amount of anthracite as an agent is 4% of the weight ratio of platinum group metal secondary resource materials, the amount of binder coal tar is 0.4% of the weight ratio of platinum group metal secondary resource materials, and the amount of slagging agent is 0.4% of the weight ratio of platinum group metal secondary resource materials. 30% of the material weight ratio (lime: quartz powder: fluorite = 4:4:2), mix evenly, use a pelletizing machine to make 5cm pellets, dry to obtain composite pellets; put them into the induction furnace in batches Add composite pellets, mix and smelt, the smelting temperature is 1350°C, and the smelting time is 2h. After smelting for a period of time, remove the sm...

Embodiment 2

[0036] See attached figure 1 , conditions: 2000g of platinum group metal secondary resource material, the amount of collector iron powder and iron ore is 30% by weight of platinum group metal secondary resource material (wherein iron powder: limonite concentrate = 3:1, reduction The amount of anthracite as an agent is 3% of the weight ratio of platinum group metal secondary resource materials, the amount of binder coal tar is 0.4% of the weight ratio of platinum group metal secondary resource materials, and the amount of slagging agent is 0.4% of the weight ratio of platinum group metal secondary resource materials. 30% of the material weight ratio (lime: quartz powder: fluorite = 4:5:1), mix well, use a pelletizing machine to make 5cm pellets, dry to obtain composite pellets; put them into the induction furnace in batches Add composite pellets, mix and smelt, the smelting temperature is 1450°C, and the smelting time is 2h. After smelting for a period of time, remove the smelt...

Embodiment 3

[0038] See attached figure 1 , condition: 2000g of platinum group metal secondary resource material, the amount of collector iron powder and iron ore is 30% by weight of platinum group metal secondary resource material (wherein iron powder: siderite concentrate = 4:1, reduction The amount of anthracite as an agent is 3% of the weight ratio of platinum group metal secondary resource materials, the amount of binder coal tar is 0.4% of the weight ratio of platinum group metal secondary resource materials, and the amount of slagging agent is 0.4% of the weight ratio of platinum group metal secondary resource materials. 30% of the material weight ratio (lime: quartz powder: fluorite = 5:4:1), mix well, use a pelletizer to make 5cm pellets, dry to obtain composite pellets; put them into induction furnace in batches Add composite pellets, mix and smelt, the smelting temperature is 1350°C, and the smelting time is 2h. After smelting for a period of time, remove the smelting slag, pour...

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Abstract

The invention discloses a method for efficiently collecting platinum group metals through mixing reduction smelting of iron powder and iron ores. The method comprises the steps that platinum group metal secondary resource materials, an iron collecting agent, a reducing agent, a slag forming constituent, a binding agent and water are subjected to full wet-grinding in a ball mill and are mixed evenly and manufactured into pellets through a ball forming machine, and the pellets are dried to obtain composite pellets; the composite pellets are added into an electric induction furnace in batches and are subjected to mixing smelting for a period of time, smelting slag is fished out, and molten iron is poured into a powder spraying device and subjected to atomization and powder spraying to form fine-grained microalloy iron powder. From the raw materials to the microalloy iron powder, the platinum group metals are efficiently collected. The method is simple in process, the raw materials are high in adaptability, high efficiency and environment friendliness are realized, the enrichment ratio is high, cost is low, and industrialization is facilitated.

Description

technical field [0001] The invention belongs to the field of metallurgy of rare and precious metals, and relates to a method for efficiently collecting platinum group metals through mixed reduction smelting of iron powder and iron ore. Background technique [0002] There are many types of secondary resources of platinum group metals. The secondary resources of platinum group metals include various precious metal dust, platinum group metal catalysts, silver catalysts, residues after wet extraction of platinum group metals, residues after wet extraction of silver catalysts, The traditional wet method can extract precious metals from glass fiber bushings, electronic waste, etc., but consumes a lot of acid and reagents, and produces a large amount of waste liquid, which is costly. If the fire method is used for enrichment, a large amount of acid and reagents can be saved. It can reduce acid consumption and reduce environmental pollution. At present, the enrichment methods of pl...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B11/00
CPCY02P10/20
Inventor 范兴祥雷霆余宇楠
Owner KUNMING METALLURGY COLLEGE
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