Reference of 22876-22-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.22876-22-8, Name is 5-Methylbenzo[d]oxazole-2(3H)-thione, molecular formula is C8H7NOS. In a Article£¬once mentioned of 22876-22-8
Effects of ammonium phosphate on the formation of crystal copper sulfide on chrysocolla surfaces and its response to flotation
In this study, for the first time, we applied ammonium phosphate to pre-treat chrysocolla prior to sulfidization flotation. In addition, we investigated the structural characteristics of the copper sulfide film formed on the chrysocolla surfaces and its response to flotation. Micro-flotation experiments revealed that the addition of (NH4)3PO4 prior to sulfidization greatly improves the floatability of chrysocolla and its recovery increased from 8.71% to 87.97% with butyl xanthate as the collector. The results of the field emission scanning electron microscopy analysis showed that numerous regular fragments appeared on the chrysocolla surfaces after the addition of (NH4)3PO4. The X-ray diffraction and X-ray photoelectron spectrometry analysis confirmed that these fragments were newly formed copper sulfide covering the chrysocolla surfaces, during this process a chemical reaction occurred in the slurry system, i.e. the Cu2+ were reduced to Cu+, the S2? were mainly oxidized to S?, (S2)?, (S2)2?. The copper sulfide species primarily in the form of crystalline covellite (Cu+ 3(S2)2?S?), which is the key to obtaining good flotation recovery. As a specific activator, (NH4)3PO4 participates in the liquid-solid phase chemical reaction between the sulfidizing reagent and the chrysocolla, which promotes the sulfidization reaction of chrysocolla.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 22876-22-8
Reference£º
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem