Method for preparing functional micro-nano structure dendritic alpha-Fe-based material through iron

A micro-nano structure and functional technology, applied in nanotechnology and other directions, can solve the problems of high cost, high waste iron recycling cost, polluting nano-scale iron process, etc., and achieve the effect of cost reduction

Active Publication Date: 2015-11-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high recycling cost and pollution of existing scrap iron and the complex process of pre...

Method used

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  • Method for preparing functional micro-nano structure dendritic alpha-Fe-based material through iron
  • Method for preparing functional micro-nano structure dendritic alpha-Fe-based material through iron
  • Method for preparing functional micro-nano structure dendritic alpha-Fe-based material through iron

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specific Embodiment approach 1

[0042]Specific embodiment 1: This embodiment is a method for preparing a functional micro-nano structure dendritic α-Fe-based material from iron, which is prepared as follows:

[0043] 1. Take a set of reaction device:

[0044] The reaction device consists of two iron anodes 1, the first wire 2, the second wire 3, a DC power supply 4, an electrolytic tank 5, a copper cathode 6, a third wire 7, a cooling water outlet 8, a cooling water inlet 9 and a cooling tank 10 ;

[0045] The two iron anodes 1 and the copper cathode 6 are all arranged in the electrolytic tank 5, and the copper cathode 6 is arranged in the middle of the two iron anodes 1; the outside of the electrolytic tank 5 is provided with a cooling tank 10, and one side of the cooling tank 10 The lower end is provided with a cooling water inlet 9, and the upper end of the other side of the cooling tank 10 is provided with a cooling water outlet 8; the positive pole of the DC power supply 4 is connected with the copper ...

specific Embodiment approach 2

[0075] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the two iron anodes 1 described in step 1 are pretreated according to the following method: the discarded or used steel is polished to remove the surface rust to obtain steel with a smooth surface; use deionized water to clean the steel with smooth surface for 3 to 5 times, then use a hair dryer to dry it, and then cut it to obtain two iron anodes 1 of the same size. Others are the same as the first embodiment.

specific Embodiment approach 3

[0076] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the iron production rate of the copper cathode 6 in Step 3 is 0.05g / min-0.3g / min. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a method for preparing a functional alpha-Fe material, in particular to a method for preparing a functional micro-nano structure dendritic alpha-Fe-based material through iron. The method is used for solving the problems that an existing waste iron recovery process is high in cost and causes pollution, and an existing nano-iron preparation process is complex, high in cost and low in product purity. The method includes the steps of firstly, taking a set of reaction equipment; secondly, preparing an electrolytic solution; thirdly, preparing metal powder; and fourthly, performing cleaning and drying to obtain the functional micro-nano structure dendritic alpha-Fe-based material. According to the method, waste steel is used as an anode, so that the waste steel is utilized, and the problem of steel waste is solved; the common steel is converted into dendritic alpha-Fe, and the dendritic alpha-Fe has various excellent properties and is widely applied to various fields. The method for preparing the functional micro-nano structure dendritic alpha-Fe-based material through the iron is obtained.

Description

technical field [0001] The invention relates to a preparation method of α-Fe functional material. Background technique [0002] Iron is the most widely used metal, and iron plays an indispensable role in all walks of life, such as railways, automobiles, airplanes, ships and other means of transportation, construction facilities such as houses, bridges, roads, and various small tools in life. Iron can be seen. In 2014, my country's total steel output reached 1.126 billion tons, reaching about half of the world's steel output. It can be found that steel is a metal that is cheap, easy to obtain, and has wide practicability. At the same time, the recycling of iron and steel resources also accounts for a large proportion. In the past ten years, the recycling of steel has reached a quarter. The recycled iron is often re-smelted to obtain new steel. The cost of re-smelting of steel is high and expensive. pollute. It is a very meaningful research direction to obtain high value-a...

Claims

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Application Information

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IPC IPC(8): C25C5/02B82Y40/00
Inventor 姜兆华张艺方姚忠平赵娅靖魏晗贺雅琼于振兴
Owner HARBIN INST OF TECH
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