phosphate rock manganese ore flotation machine

beneficiation methods of the manganese ore - kara liu

beneficiation methods of the manganese ore - kara liu

The vast majority of China's manganese are lean ore, ore processing must be carried out. But because most manganese ore is fine-grained or micro-fine disseminated, and there are a considerable number of high phosphate rock, iron ore and total (with) useful metal, so the beneficiation process is very difficult to conduct . The commonly used manganese ore beneficiation methods are machinery election methods (including washing, screening, re-election, high intensity magnetic separation and flotation), as well as chemical beneficiation method.

First, the first step must be washing and sieving Washing is the method that use the hydraulic flushing or additional mechanical scrubbing to separate the ore and muddy . The common used gravel equipments are wash griddle, cylindrical ore washing machine and trough washing machine. Washing operations are often associated with screening, such as the ore after going through the flush cleaning or washing machine (net mine) , and then be sent to the vibration sieve shaker directly. Screening is a stand-alone operation, the obtained different particle size and grade of product are supplied for different purposes.

Re-election (gravity dressing) Re-election only used for sorting the simple structure, disseminated coarser ore, especially suitable for the higher density of oxide ore. The common methods are heavy media beneficiation, dressing and shaking jigging beneficiation.

High intensity magnetic separation (magnetic dressing) Manganese mineral is the weakly magnetic minerals, which can be recovered in the strong magnetic field of the magnetic field intensity magnetic separator, the generally increased manganese grade is 4% -10%. Duo to the operation is simple, easy control, adaptability, can be used for a variety of manganese ore sorting, so in recent years they has been dominant in the manganese ore. Every new types of coarse, medium and fine-grained magnetic machine has been developed successfully. Currently, the most common manganese is a medium-grained strong magnetic separator, coarse and fine intensity magnetic separator gradually been applied . the micro-fine strong magnetic separator is still at an experimental stage.

According to industry tests, the grinding grinding process always adopted the rod mill (rod mill) - milling (ball mill) stage , and the 2100mm 3000mm type wet grinding machine. After years of production tests, the performance is good, which is very suitable for the application of Zunyi manganese beneficiation. Magnetic - flotation process successfully tested and has been applied in the production of deep marks China's manganese election has gone forward a major step.

phosphate mining, phosphate mining process, phosphate beneficiation- xinhai - xinhai

phosphate mining, phosphate mining process, phosphate beneficiation- xinhai - xinhai

[Introduction]: According to different ore properties of phosphate, Xinhai designs many processes for it such as flotation, gravity separation, chemical leaching, combined dressing, photoelectric sorting, etc. Flotation is widely used in phosphate including direct flotation, reverse flotation, reverse flotation and flotation, and double-reverse flotation process.

Direct flotation inhibits gangue minerals by effective inhibitors, and the phosphorus mineral is enriched in foam by collecting agent. This process is suitable for low grade phosphate ores including magmatite type apatite and sedimentary metamorphic type phosphorite ore.

Mainly used for the separation of phosphate and dolomite; dolomite is collected with fatty acid collector in weak alkaline medium, and the phosphorus mineral is enriched in the groove. The biggest advantage of reverse flotation process is the realization of the normal temperature flotation.

In alkaline conditions, double-reverse flotation makes the silicate surface positively charged, and the anionic collector separates minerals meaning floating dolomite firstly, and then reverse floating silicate; the product is heavy concentrate in groove; the production line can be carried out at normal temperature and coarse grain condition.

what is phosphate rock processing? - xinhai

what is phosphate rock processing? - xinhai

Phosphate ore has no fixed molecular formula and fixed crystal structure. It belongs tononcrystalline. Phosphate usually shows oolitic structure, sometimes binding,globular and power shapes and so on. It is a kind of finely dispersed phaseapatite with a colloidal structure which is difficult to process.

Phosphate ore andPhosphaterock processinginvolves Scrubbing and removing mud, flotation method, roasting, and digestion method,heavy medium separation method, photoelectric mineral processing method,biological treatment method and combined mineral processing technology.

Crubbing and removing mud ofPhosphate ore and Phosphaterock processinghas been mature. But the practice showsthat it is limited in improving the grade of Phosphate and a large of tailingproduced has not been taken advantage of. At present, this method is combinedwith flotation and the Phosphate among the tailing can be recovered by theflotation method.

The flotation method is widelysuitable for all the Phosphate ore andPhosphaterock processing. Bydifferent nature of Phosphate ore, it can be divided into positive flotation,flotation (positive and negative), double reverse flotation.

phosphorite ore mining solution - mineral processing

phosphorite ore mining solution - mineral processing

Phosphorite flotation equipment include self-aspirating mechanical agitation, aeration agitation, air-lift and decompression flotation machines. The JXSC flotation machine equipment has complete specifications and models (available for selection by large, medium and small-scale beneficiation plants), high operation rate, low maintenance rate, low energy consumption, good flotation index and low price, which greatly reduces the flotation cost of the concentrator.

a green method for mn2+ and nh4+-n removal in electrolytic manganese residue leachate by electric field and phosphorus ore flotation tailings - sciencedirect

a green method for mn2+ and nh4+-n removal in electrolytic manganese residue leachate by electric field and phosphorus ore flotation tailings - sciencedirect

Electric field and POFTs were used for Mn2+ and NH4+-N removal in EMRL firstly.The treated EMRL can be discharged to the standard (GB89781996).The phosphate precipitation obtained could be used as market fertilizer.This study provided a new idea for EMRL harmless disposal and POFTs utilization.

High concentrations of manganese (Mn2+) and ammonia nitrogen (NH4+-N) in electrolytic manganese residue leachate (EMRL) have seriously polluted the environment. In this study, electric field and phosphorus ore flotation tailings (POFTs) were used for Mn2+ and NH4+-N removal in EMRL firstly. The effects of the liquid acid ratios, reaction temperature, current density, initial pH and stable pH of the solution, characteristics of EMRL and POFTs, and removal mechanism of NH4+-N and Mn2+ were investigated. The results indicated that an electric field enhanced the leaching of POFTs and promoted the adsorption and precipitation of Mn2+ and NH4+-N. The concentrations of Mn2+, NH4+-N, PO43 and F in EMRL were 0.12mg/L, 9.2mg/L, 0.09mg/L, and 0.24mg/L, respectively, which were within the permitted level for the integrated wastewater discharge standard (GB8978-1996) after adjusting the second stable pH to 10.0. Mn2+ was mostly remove in the form of Mn(OH)2, MnOOH, Mn5(OH)4(PO4)2 and MnO2. NH4+-N was mostly remove as NH4MgPO46H2O. The phosphate precipitation obtained could be used as market fertilizer. This study provided a new research idea for EMRL harmless disposal and POFTs resource utilization.

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