Method for smelting nickel ore concentrate by using smelting furnace

A technology of smelting furnace and concentrate, which is applied in the direction of improving process efficiency to achieve the effect of reducing production cost, considerable economic benefits and cost saving

Active Publication Date: 2011-08-03
JILIN JIEN NICKEL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a precedent for using copper water jacket slag hanging operation alone in the Osmelt converting furnace, but it has not yet been used in the Osmelt smelting furnace. The Ji Ni project used the copper water jacket slag hanging operation in the Austrian furnace for the first time to smelt nickel Concentrate

Method used

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  • Method for smelting nickel ore concentrate by using smelting furnace
  • Method for smelting nickel ore concentrate by using smelting furnace

Examples

Experimental program
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Effect test

example 1

[0028] In the normal production practice of the copper water jacket hanging slag operation of the Austrian furnace, the materials added to the Austrian furnace are Chaoyang low nickel matte and self-produced concentrate produced by the company:

[0029] Table 1 Composition of Chaoyang Low Nickel Matte:

[0030] Ni

[0031] Table 2 Self-produced nickel concentrate

[0032] Ni

[0033] Through batch calculation, add a certain amount of quartz stone to adjust the slag type, so that the slag has good fluidity and is easy to discharge. Fe / SiO 2 Control between 1.1-1.2, but due to the addition of low nickel matte and high iron content, the Fe / SiO in the production slag 2 Sometimes it can reach 1.4-1.6. If this high value appears, increase the amount of quartz stone added to reduce the iron-silicon ratio.

[0034] Table 3 The composition of Austrian furnace slag is as follows:

[0035] Ni

[0036] With the above operations, the temperature of the copp...

example 2

[0038] Table 1 Composition of Chaoyang Low Nickel Matte:

[0039] Ni

[0040] Table 2 Self-produced nickel concentrate

[0041] Ni

[0042] Through batch calculation, add a certain amount of quartz stone to adjust the slag type, so that the slag has good fluidity and is easy to discharge. Fe / SiO 2 Control between 1.1-1.2.

[0043] Table 3 The composition of Austrian furnace slag is as follows:

[0044] Ni

[0045] With the above operations, the temperature of the copper water jacket of the Austrian furnace and the temperature of the inlet and outlet water of the copper water jacket are within the controllable range, and normal and safe production can be performed.

example 3

[0047] Table 1 Composition of Chaoyang Low Nickel Matte:

[0048] Ni

[0049] Table 2 Self-produced nickel concentrate

[0050] Ni

[0051] Through batch calculation, add a certain amount of quartz stone to adjust the slag type, so that the slag has good fluidity and is easy to discharge. Fe / SiO 2 Control between 1.0-1.1.

[0052] Table 3 The composition of Austrian furnace slag is as follows:

[0053] Ni

[0054] With the above operations, the temperature of the copper water jacket of the Austrian furnace and the temperature of the inlet and outlet water of the copper water jacket are within the controllable range, and normal and safe production can be performed.

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Abstract

The invention relates to a method for smelting nickel ore concentrate by using a smelting furnace, belonging to the field of non-ferrous metallurgy. A refractory lining is needed for high-temperature smelting of a general pyrometallurgical furnace, but the refractory lining is prevented from being used above the melting bath surface of an Ausmelt furnace and the nickel ore concentrate is directlysmelt by adopting a slag-hanging operation technology of a cooper water jacket; and for the general pyrometallurgical furnace, a refractor brick is required to be lined outside the copper water jacket which plays roles of cooling the refractor brick and prolonging the service life of the refractor brick. In the method, the refractor brick is arranged below the nickel matte surface of the melting bath and is prevented from being used above the nickel matte surface, so that the production cost of the smelting furnace is greatly reduced and the considerable economic benefit is obtained.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal metallurgy, and in particular relates to a pyrometallurgical production method for smelting nickel concentrate in a top-blown immersion smelting furnace using an Osmelt spray gun. Background technique [0002] The top-blowing immersion smelting method belongs to the category of molten pool smelting. This technology belongs to Australia Ausmelt and MIM companies, and is transferred under the name of Ausmelt and ISA method respectively. Has been widely used in copper, tin, lead, steel and other fields. It has developed rapidly in the past 10 years. At present, my country has introduced three smelters with top-blown immersion smelting technology. Among them, Zhongtiaoshan Smelter and Jinchang Smelter adopt Ausmelt technology, and Yunnan Copper Industry Company adopts ISA technology. This patent adopts Ausmelt technology to smelt nickel concentrate. [0003] Top-blown immersion smelting technology,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B23/02
CPCY02P10/20
Inventor 李景峰张东高晓艳张志军孙吉林马忠诚翟青雯张彦波司俊起王瑞丰
Owner JILIN JIEN NICKEL IND
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