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Method for manufacturing iron-copper alloy from iron oxide red and copper sulfate

A technology of iron oxide red and iron-copper alloy is applied in the field of preparation of iron-copper alloy, which can solve the problems such as the inability to reflect the value of iron red well, and achieve the effects of easy promotion, simple operation process and high price.

Inactive Publication Date: 2013-07-17
HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither of the above two methods can reflect the value of iron red very well.

Method used

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  • Method for manufacturing iron-copper alloy from iron oxide red and copper sulfate

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Embodiment 1

[0017] Embodiment 1: The method for preparing an iron-copper alloy by using iron oxide red and copper sulfate uses cold-rolled waste acid regenerated iron oxide red and industrial-grade copper sulfate as raw materials, and the reducing gas is a mixed gas of nitrogen and hydrogen. The specific process steps for:

[0018] (1) Dissolve 500g of copper sulfate in ionized water to make a 1mol / L copper sulfate solution, and prepare a sodium hydroxide solution with sodium hydroxide in an equimolar amount to copper sulfate; slowly pour the sodium hydroxide solution into the copper sulfate solution In, stir, produce blue gel copper hydroxide.

[0019] (2) Heat the gel copper hydroxide in a constant temperature water bath at a heating temperature of 60°C for 40 minutes, filter to obtain a black precipitate - copper oxide, and dry at 105°C for 4 hours.

[0020] (3) Red iron oxide regenerated from cold rolling waste acid and precipitated copper oxide are calculated and mixed according to ...

Embodiment 2

[0023] Embodiment 2: The method for preparing an iron-copper alloy by using iron oxide red and copper sulfate uses cold-rolled waste acid regenerated iron oxide red and industrial-grade copper sulfate as raw materials, and the reducing gas is a mixed gas of nitrogen and hydrogen. The specific process steps for:

[0024] (1) Dissolve 1000g of copper sulfate in ionized water to make a 1.5mol / L copper sulfate solution, and prepare a sodium hydroxide solution with sodium hydroxide in an equimolar amount to copper sulfate; slowly pour the sodium hydroxide solution into the copper sulfate solution, stirring, to produce blue gel copper hydroxide.

[0025] (2) Heat the gel copper hydroxide in a constant temperature water bath at a heating temperature of 80°C for 50 minutes, filter to obtain a black precipitate - copper oxide, and dry at 100°C for 6 hours.

[0026] (3) Red iron oxide regenerated from cold-rolled waste acid and precipitated copper oxide are calculated and mixed accordi...

Embodiment 3

[0029] Embodiment 3: The method for preparing iron-copper alloy by using iron oxide red and copper sulfate, using cold-rolled waste acid regenerated iron oxide red and industrial-grade copper sulfate as raw materials, the reducing gas is a mixed gas of nitrogen and hydrogen, and its specific process steps for:

[0030] (1) Dissolve 1500g of copper sulfate in ionized water to make a 2mol / L copper sulfate solution, and prepare a sodium hydroxide solution with sodium hydroxide in an equimolar amount to copper sulfate; slowly pour the sodium hydroxide solution into the copper sulfate solution In, stir, produce blue gel copper hydroxide.

[0031] (2) Heat the gel copper hydroxide in a constant temperature water bath at a heating temperature of 100°C for 30 minutes, filter to obtain a black precipitate - copper oxide, and dry at 105°C for 8 hours.

[0032] (3) Red iron oxide regenerated from cold-rolled waste acid and precipitated copper oxide are calculated and mixed according to ...

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Abstract

The invention discloses a method for manufacturing iron-copper alloy from iron oxide red and copper sulfate. The method includes technological steps of (1), adding sodium hydroxide solution into copper sulfate solution, and stirring a mixture of the sodium hydroxide solution and the copper sulfate solution to generate blue copper hydroxide gel; (2), heating, filtering and drying the copper hydroxide gel to obtain copper oxide;(3), mixing a certain amount of copper oxide with the iron oxide red, and grinding and uniformly mixing the copper oxide and the iron oxide red to obtain a mixture; and (4), heating and pretreating the mixture in inert atmosphere, and then enabling the mixture to carry out reduction reaction to obtain the iron-copper alloy. The certain amount of the copper oxide is calculated according to the proportion of iron to copper of the manufactured iron-copper alloy. The method has the advantages that the regenerated iron oxide red of cold-rolling waste acid and the copper sulfate are used as raw materials, iron-copper alloy powder is manufactured by means of reduction reaction, as the iron-copper alloy powder is widely applied and is high in selling price, the additional value of the iron oxide red is greatly increased, and a novel utilization channel of the iron oxide red is provided; and the superiority of an iron and steel enterprise is sufficiently utilized, an operation process is simple, and the cost is low.

Description

technical field [0001] The invention relates to a method for preparing an iron-copper alloy, in particular to a method for preparing an iron-copper alloy by using red iron oxide and copper sulfate. Background technique [0002] Red iron oxide is a by-product of acid regeneration in the cold rolling process. For iron and steel production enterprises with a production capacity of tens of millions of t / a, the output of red iron oxide is about 3 million t / a. At present, some iron and steel enterprises are regenerating waste acid from cold rolling Some iron oxide reds are sold at low prices, or returned to sintering for reuse. Neither of the above two methods can reflect the value of iron red very well. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a [0004] In order to solve the problems of the technologies described above, the process steps taken by the present invention are: [0005] (1) Add sodium hydroxide ...

Claims

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Application Information

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IPC IPC(8): B22F9/22
Inventor 许斌吝章国孙玉虎李玉银王晓晖徐晓卜二军朱文玲
Owner HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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