What are xanthate salts?
What are xanthate salts?
Xanthate usually refers to a salt with the formula ROCS − 2M + (R = alkyl; M+ = Na+, K+), thus they are the metal-thioate/O-esters of dithiocarbonate. The name xanthates is derived from Ancient Greek ξανθός xanthos, meaning “yellowish, golden”, and indeed most xanthate salts are yellow.
Where is potassium amyl xanthate made?
The consumption of Potassium Amyl Xanthate has increased dramatically across the world, especially in the developing countries. Therefore, its huge demand has led to a surge in companies that produce it. The main producers of PAX are: China.
What is Pax in mining?
Potassium amyl xanthate (PAX) and sodium isobutyl xanthate (SIBX) are traditional thiol collectors used in the bulk and selective froth flotation of nickel and copper sulfide mineral ores. Individually, they are not selective enough for economical low-grade nickel froth flotation.
How do you make xanthates?
The kneading method is the main method for synthesizing xanthate. It directly adds alcohol and carbon disulfide to the kneading machine, and then gradually adds powdery caustic (sodium hydroxide or potassium hydroxide) to react to produce xanthate at 25 o C~35 o C. .
What is potassium Xanthate?
Potassium ethyl xanthate (KEX) is an organosulfur compound with the chemical formula CH3CH2OCS2K. It is a pale yellow powder that is used in the mining industry for the separation of ores. Unlike the related sodium ethyl xanthate, the potassium salt exists as an anhydrous salt.
Why xanthate is used as collector?
Xanthates are ionising anionic sulfhydryl collectors that are powerful and selective in the flotation of sulphide minerals . They adsorb on to the sulphide mineral surface and form insoluble metal xanthates which are very hydrophobic.
How do you pronounce xyntha?
XYNTHA (pronounced “ZIN-tha”) is manufactured using a completely albumin-free process and state- of-the-art nanofiltration purification technology.
What is activator in froth flotation?
Solution : Copper sulphate acts as an activation in froth floatation process.
Which one is used as activator for flotation process?
Copper sulphate is used as an activator in the flotation of base metal sulphides as it promotes the interaction of collector molecules with mineral surfaces.
Which ore is used in froth flotation?
Types of ores that can be concentrated by froth flotation method are sulphide ores. Examples are PbS (sulphide galena) and ZnS (zinc blende).