How to produce iron fine powder from Tailings (pyrite)
2022-10-26
75
Recently got some information about iron fine powder refining, but there are cross-industry, in our downstream crushing equipment how many things have exceeded the scope of knowledge of the small editor. But consult the relevant materials and ask the engineers in the use of tailings, steel slag and other refining iron fine powder, titanium powder knowledge to share with you the traditional analysis, for the metal mine is very mysterious and very need the public in the world.
After all, every mineral resource is used in the path of scientific and technological development, but often people's minds are used in. Muffled sound to make a fortune, can not spread their own selfish act. For example, titanium alloy for aviation, special materials for aircraft engines, and even lethal weapons.
I'm not going to say much about it because people who can say things like chemistry, or some series of formulas, can't write articles. And we're not just talking about rare earths. As a heavy industry base in northeast China, and the country's steel share of 80 percent of the region. Some of them do. Cities like Anshan, for example.
There are always ways for people with 'channels' to make money by using resources such as tailings. Though not in plain sight. But it was done.
For example: for example, there is a way or channel in which a small amount of silicon forms a structural skeleton, and iron oxides are wrapped in it, forming an extremely stable composite structure. After a long time of burning and hydrothermal treatment, the iron in the slag has formed a dense protective oxide film. Therefore, the slag after treatment needs hydrothermal test, the purpose of hydrothermal is to destroy the special structure of the substance in the slag. The slag is then treated with aqua regia mainly to remove the residual sulfur and other metallic compounds that can be dissolved in aqua regia.
After a long time of burning and hydrothermal treatment, the iron in the slag has formed a dense protective oxide film, which is almost insoluble in low-concentration aqua regia. Therefore, the treatment of aqua regia regia will not cause the loss of iron, but will improve the taste of iron in the slag, so as to generate iron fine powder. In order to improve the purity of iron, the slag was thermally treated and sulfur and most other impurities were removed by aqua regia.
The hydrothermal treatment of slag was studied, and the optimal hydrothermal method was found, such as alkali slag ratio, hydrothermal temperature and time, by comparing the single conditions and testing the products according to GB/T2463.2-1996. Acid leaching was studied, and the optimal acid was found by comparing the single conditions and testing the product according to GB/T2463.2-1996
Immersion conditions, such as concentration, time, temperature, etc. So you recover the tailings, but there's no way to lift them up, no way to extract the original iron. In the experiment, various temperature, time, concentration are the key factors affecting the improvement of iron grade, so it is necessary to optimize the experimental conditions, select the best experimental conditions, comprehensive treatment.
Pyrite
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