Antimony silvery white metal, is a brittle metal, acid room temperature. Ordinary metal bismuth is also ash, and below the 90 °C is the allotrope jaundice. The sudden cooling of the vapor of the metal crucible solidifies into an amorphous black crucible. Black cockroaches are chemically active, sometimes natural, and fade to ash at temperatures above 90 °C. In addition, electrolysis with antimony trichloride gives a black hydrazine containing a small amount of antimony trichloride. This type of cockroach will explode when it is rubbed or impacted, which is called blasting. Therefore, attention should be paid when electrolyzing. The crucible does not interact with air at normal temperature, and Sb2O3, Sb2O4 or Sb2O5 can be formed in the air at high temperature, and can also react with water to form Sb2O3 and hydrogen. Common ore dressing methods for antimony ore include hand selection, re-election, heavy medium selection, and flotation. The hand selection is carried out by using the difference in color, gloss and shape of the strontium-containing minerals and gangue in the strontium ore. Although the method is original and labor intensive, it is still of special significance for the beneficiation ore dressing: because the niobium minerals are often produced by coarse monomer crystals or massive aggregate crystals, the hand can often obtain blocks with higher grades. Antimony concentrate is suitable for the technical requirements of the vertical roaster in the metallurgical plant. Hand selection can reduce the cost of ore dressing and energy consumption, so it is widely used in China. Re-election is applicable to most niobium ore dressing plants because niobium minerals are minerals with high density and coarse grain size and are easily separated from the gangue by re-election methods. Regardless of whether a single sulphide ore or sulphide (oxidized mixed yttrium ore) has good re-election conditions, and the cost of re-election is low, a large number of qualified coarse-grain concentrates can be sorted in a relatively coarse-grained range, and a large amount of discarded The gangue, therefore, re-election is still the beneficiation method that today's smelting workers are willing to adopt. Sometimes, even if it cannot directly select qualified bismuth concentrates, it is often accepted as a pre-selection operation for sputum flotation operations, especially It is the case that flotation has a lot of difficulties in dealing with cerium oxide ore at this stage, and thus it has been re-elected as the main beneficiation method for cerium oxide ore. Heavy medium ore dressing is often used as a pre-selection operation for strontium ore. Practice has proved that in addition to strontium ore containing crystal structure, heavy medium dressing can be used. Difficulties in heavy media beneficiation are the selection of weighting agents, the preparation and recovery of media. A substance used as weighting agents, practice shows that: Grinding Wheel Yu scrap steel (iron silicon) is ideal. The material has a magnetic content of 70-98%, and the chemical composition is mainly silicon and iron. After being finely ground to less than 74 micrometers and 98% after the mineralizer preparation system, the weighting agent is kept at a density of 2.65 g/cm3. It is entirely possible and easy to recycle. Flotation is the most important beneficiation method for selecting minerals. Barium sulfide minerals are easy-floating minerals, and most of them use flotation methods to increase the ore crystal position. Wherein: the first stibnite often used as the activator of lead salts, copper salts or lead salts are also useful to use either of a copper salt, followed by flotation collector. Commonly used collectors are diphtheria or shale oil and ethyl sulphide, the foaming agent is pine oil or No. 2 oil; cerium oxide ore is a difficult ore. Strontium Bromide,Strontium And Bromide,Strontium Bromide Cation And Anion,Strontium Bromide Formula Vietnam Fine Chemical Factory , https://www.link-winchem.com