Direct Import of Flocculants, Polyacrylamide SNF France

Raymon Company http://www.raymongostar.com

flocculants RAYMON A235 flocculants RAYMON A245 flocculants FLOPAM A331 TIANRUN A556 TIANRUNA756 (At the bottom of the ad) (At the bottom of the ad)

Separating solid phases from liquid – Dewatering Water recycling in processing plants is often unavoidable, especially in cases where the plant is located in a water-scarce area. Preventing water wastage for recovery and also preventing environmental pollution and loss of elements is of great importance. Considering that most ore dressing methods take place in an environment containing a significant amount of water, the final enriched product will be in the form of pulp, which is sometimes very dilute and must be dewatered (i.e., separating solids from liquid) to reduce its moisture to some extent for transportation or other industrial activities. In most cases, the majority of the water is discharged with the tailings, so in order to: • Store tailings http://www.raymongostar.com • Prevent environmental pollution by water accompanying the mineral http://www.raymongostar.com • Recover and reuse water http://www.raymongostar.com Separating the water present in the tailings from the solid particles is essential. In various stages of mineral processing, partial dewatering of the pulp may also be necessary to adjust its concentration. Also, in some processing methods, such as hydrometallurgy, after dissolving the desired mineral or element in the solvent used, separating the remaining solid phases from the enriched solution is necessary. Dewatering methods can generally be divided into three categories: • Settling http://www.raymongostar.com • Filtering or Filtration http://www.raymongostar.com • Drying http://www.raymongostar.com When there is a large density difference between solid and liquid, the settling method has the best efficiency. This is usually true in ore dressing where water is the liquid used. However, in hydrometallurgical methods, settling may not be effective because as the solvent concentration of the dissolved element or mineral increases, its density also rises and approaches that of the remaining solid particles. In such cases, only filtration can be used. In ore dressing, dewatering is usually a combination of the two methods above. Most of the water is first separated from the rest by settling, resulting in a thickened pulp containing 55 to 60 percent solids. At this stage, about 80 percent of the water present can be separated, then by filtering the thickened pulp, a cake is obtained with 10 to 20 percent moisture, and if necessary, in another step, thermal drying can reduce its moisture to 5 percent or less. http://www.raymongostar.com