Do you know about the synthetic methods and precautions of iron sulfide? Today Tongling Fukang mining limited liability company to introduce to you is this, hope that we can through the introduction of iron sulfide and other aspects have a certain understanding and the understanding, the following look together related introduction:
Synthesis method and precautions of iron sulfide iron sulfide
More than 85% sulfur iron ore is used to produce sulfuric acid, followed by extraction of sulfur. When the associated pyrite copper, lead, zinc, silver, gold, cobalt, nickel and other elements reached a certain level comprehensive recycling if compliance with specifications of use and storage are not decomposed, no known risk avoidance reaction, with weak acid. The conductivity, insoluble in water and soluble in dilute hydrochloric acid, nitric acid and sulfur precipitation. To produce a blue flame on fire and emit a strong sulfur dioxide.
Known as the iron and sulfur compounds, there are mainly two, three and two iron sulfide FES iron sulfide.
Two FeS2 yellow crystal of ferrous sulfide, the main composition of pyrite in it is, it is anti magnetic. Pyrite in the melting point of 1171 DEG C, density 5 g / cm3, with the cubic lattice; room temperature for non active substances, temperature becomes lively, heated in air, oxidation of ferric oxide (see iron oxide) and sulfur dioxide; in vacuum heating to 600 deg.c to sulfur. Can be used for pyrite sulfuric acid industry.
FeS sulfide as brown black lumps; the melting point of 1193 to 1199 DEG C, density 4.74 g / cm3; insoluble in water, soluble in acid aqueous solution, and produce hydrogen sulfide; heating easily oxidized in air, in vacuum is heated to 1100 DEG above sulfur. By the two elements of ferrous sulfide was prepared directly, but also by ferrous salt solution and alkali metal sulfide and effect. It can be used to produce hydrogen sulfide gas in the laboratory; can also be used in ceramic and paint pigment industry.
Three two Fe2S3 yellow green iron sulfide solid; relative density 4.3; strong heat decomposition; insoluble in water and decomposed into ferrous sulfide and sulfur in hot water; acid decomposition of iron sulfide sulfide, hydrogen sulfide.
More attention: manufacturers of ferrous sulfide iron sulphide to find a
I believe we all know a little bit about iron sulfide, it is suitable for titanium dioxide manufacturing industry, it can make the titanium dioxide precipitation, precipitation of water, can enhance the whiteness of titanium dioxide. Today, iron sulfide manufacturers to bring the notes on the synthesis methods of iron sulfide are matters for your attention:
Underground mining method with the majority of small and medium iron sulfide mines, sublevel caving mining method is the main. Open pit mining method for shallow mines with few shallow deposits. The general process flow and general process flow of pit mining are the same as "phosphorite rock". Beneficiation methods mainly include flotation, gravity separation and magnetic separation method. General beneficiation process with the "phosphorus block rock". For a single, multi metal pyrite and pyrite containing carbon less coal pyrite by grinding classification and flotation process; for carbonaceous clay and more coal pyrite flotation or by gravity separation flotation gravity flow. More than 85% of the iron sulfide ore used in the manufacture of sulfuric acid, the refined sulfur. When the elements such as Cu, Pb, Zn, Ag, Au, CO and Ni in pyrite reach certain content, the pyrite can be recycled comprehensively.
Tongling Fukang tips must pay attention to the matters of FES oh!
Ferrous sulfide ignition is very low, usually at about 50 degrees in the above can be spontaneous. In the oil refining tower inner surface and inner filler will produce ferrous sulfide, in the shutdown maintenance process, equipment and packing contact with oxygen, light and make the temperature rise, it is easy to cause spontaneous combustion. Such production accidents often occur before, so it is generally regular to the shutdown state of the tower equipment water injection, this is the reason.
Some described above is the synthesis method of iron sulphide and precautions ", believe that the introduction of this article, will also have a new understanding of the future, for iron sulfide problems can also be solved very well. Here, we recommend you know more about manufacturers, wholesale, sales, iron sulfide manufacturers price and other relevant information, I hope to help you!
Keywords: oxidation of ferrous iron sulfide sulfide synthesis
Related tags: iron ore, ferrous sulfide, ferrous sulfide, oxide