solutions

Scheelite flotation process   Scheelite dressing can use gravity, magnetic and flotation separation. The types and properties of the ore decide the separation methods and processes. Basing on good floatability of scheelite, the flotation is selected.   Introduction Scheelite flotation product line is suitable for the scheelite containing multi metals with complex structure. Separation of scheelite and calcspar & fluorite Concentration pulp with high temperature is common method. First,  the pulp is concentrated to 60%-70%; the next, sodium silicate is added into pulp; then, the pulp is heated to 80℃ and stirred for 30-60min; the last, it is diluted with water. The floatation of scheelite is under the room temperature, and the product in tank is calcspar & fluorite. The separation of scheelite and barite It is difficult to separate scheelite and barite by sodium silicate because of the closed inhibitory action for scheelite and barite. We choose alkyl sulfate as collector to repeatly select barite under the 1.5-3PH, and the product in tank is scheelite. The separation of scheelite and sulfide Xanthate is used to capture sulfide minerals in scheelite floatation. We add a little oxide and sodium sulfide to inhibit sulfide without floatation. The separation of scheelite and Quartz silicate Oleic acid as collector and sodium silicate as inhibitors, which could inhibit the quartz and silicate gangue and float scheelite.

Copper beneficiation process   Copper ore divides into ore sulfide ,ore oxide and mixing ore according to its oxide rate . The main process for copper ore is flotation , for refractory mixed copper ore and refractory oxide ore , normally use hydrometallurgy process . Introduction Copper ore separation process (copper mining methods, copper flotation, copper beneficiation, copper sulphide ore, copper magnetic separation, copper ores and concentrates, copper ore processing, copper ore extraction, copper mining process, copper ore concentration, copper ore grinding, copper mining equipment, copper mining machinery, copper mining extraction, purification of copper) divides into one step and mult-steps process . There are many processes , it is mainly influenced by reasons below : 1.  There are many kinds of sulfide copper ore , like Chalcopyrite, chalcocite, porphyry copper, copper blue, arsenopyrite . The reaction sequence with xanthate is Chalcocite> copper blue> speckle copper> pyrite 2.  Secondary copper ore and oxidation influence 3.  Influence of ded particles , the more fine of the particles the much difficult to make the flotation 4.  Multi-metal with copper , including Copper pyrite and  Copper-Molybdenum Ore and so on . (Tips: You can add this webpage as favourite, or find it by serach in Google with the keywords below: copper leaching plant, copper mining process plant, copper concentrator, copper grinding machine, copper smelter plant, copper smelters, copper ore concentrate, copper crusher machine, copper beneficiation plant, copper concentrator plant, froth flotation copper, copper mine plant, copper heap leach, mining of copper ore, sx ew plant copper, copper ore beneficiation, copper refining process, extracting copper from copper oxide, copper extraction plant, copper concentration process, copper smelting process, beneficiation of copper ore, leaching of copper ore, copper concentrate smelting, sx ew copper, copper flotation process, copper ore refining, heap leaching copper, copper mineral processing, copper ore extraction, copper refinery plant, copper refinery process, copper smelting plant, copper cathode production, copper ore mining, sxew copper, mining for copper, copper concentrate plant, copper mining process, copper production process, copper oxide leaching, copper sulphate dressing, copper ore flotation, refining copper ore, copper leaching process, beneficiation of copper, flotation of copper ore, and so on.)

Gold flotation process   Flotation is a method that is widely used in gold ore processing plant to process the rock gold ,commonly used in dealing with highly floatable sulfide minerals containing gold ore. Flotation process can maximum enrich gold to the sulfide mineral , tailings can be abandoned directly , the cost of processing plant is low, 80% of China's rock gold are used in this method. Flotation process that mainly including dosing, mixing, filling, blowing foam etc .       Application Flotation is suitable for processing the gold-bearing sulfide ore which with fine and floatable gold particles, during flotation , sulfide ore act as the carrier of gold and is enriched to sulfide mineral concentrate . Flotation can be also used to process multi-metal which containing sulfide mineral and carbonic mineral . For the mineral insoluble that can`t be processed by amalgam or cyanidation , which should use a combined process that including flotation .   Introduction Grinding fineness , pulp concentration , reagent dosage , inflating volume , flotation time are the influence factors for flotation process . Normally , these process conditions should be confirmed by mineral processing test and practical experience . Process flow Flotation process has the most important influence for mineral flotation , to choose the rational process depends on the nature of ore , and should also consider the facility of operation , cost and the recovery . For the gold mining that contains only one mineral with gross particles and embedded uniform  , usually use one step grinding and flotation process . For the gold particles have diversity sizes and embedded uneven in the gold ore , normally  put mercury plate and gravity equipment to pre-recover the gold particles in the grinding and classifier circuit before carry on the flotation process . These two process above are widely used in gold dressing plant. But for the gold ore with complicated mineral , flotation process will be more complex , for example, separation process in grinding , mud and sand separation process are all applicable in practice . For flotation in polymetallic ore , its process will be more complex , gold enrich normally in some concentrates , and is sold as an associated mineral . Flotation equipment including all types of flotation machines , new type flotation column that has been used in certain gold ore . XJK flotation machine is a traditional self-absorption flotation machine , JJF , SF, BF flotation machines are new type self-absorption flotation machine . Self-absorption mechanical agitation flotation machine is the most competitiveness at the moment ,  because it has simple structure , fulfilled air , dispersion uniform , lower rotating speed of vane , lower energy consumption , less abrasion characters . And this type equipment make it possible for upsizing the beneficiation equipment ,  among these , KYF flotation machine has the maximum volume tank that could reach 320 m³.   (Tips: You can add this webpage as favourite, or find it by serach in Google with the keywords below: gold mining equipment suppliers, gold mining equipment manufacturers, smelting gold bars, gold concentrate processing, gold mining flow chart, gold beneficiation plant, mining process flow chart, froth flotation gold, gold gravity concentrator, gold processing mill, gold mining process flow, gold melting machine, gold flotation, gold ball mill, ball mill gold, ball mill gold mining, gold milling machine, gold ball mill for sale, gold flotation machine, gold flotation plant, and so on.)

  Compared to other minerals , magnetite ore is easier to separate . We use normally permanent magnetic separator , magnetic pulley and magnetic dewatering tank ，these process are very easy . These years , with the enhance of requirement of fine particles and smelting industry , accelerated the magnetic technology ， including the fine screen ,magnetic column and weak magnetic separator --- reverse flotation , that increased the iron grade to 68.85% , silicon decreased to 4% .   Application Magnetite Separation Production Line is used to single magnetite with simple ore properties. Process introduction Weak magnetic – reverse flotation process : it`s a process that divides into weak magnetic – positive ion reverse flotation process and weak magnetic –negative ion reverse flotation process , the difference is the reagent , negative ion advantage is that the float is not paste , index stable . Negative ion flotation has high temperature requirement , has bad influence on the pipe of concentrates , need to add acid before filter.  

  The beneficiation of fluorite ore is gravity separation and flotation process. The specificity of fluorite flotation: 1. Because industrial making hydrofluoric acid require calcium fluorite content>98% and silica

  Quartz refinement is a high difficult separation technology removing the bit or microimpurity and then get concentrated quartz or high purity quartz. Quartz refinement process mainly include washing, classification & desliming, scrubbing, magnetic separation, flotation, acid leaching, microbiological leaching, etc.   Introduction 1. washing, classification & desliming The SiO2 grade will be lower along with quartz particle size becoming fine, impurity ores grade will oppose. This phenomenon is obvious particularly in the quartz ore containing a large amount of clay. So it is necessary to washing and desliming before bebeficiation . 2. Scrubbing Scrubbing means removing the thin film on surface of quartz ore and mud impurity ore and further grating mineral aggregate by mechanical force and sand grinding & peeling force. Then classification and further purify quartz sand. At present, mainly use rod scrubbing and mechanical scrubbing. 3. flotation It is great difficulty to separate the mica and quartz. Use the anion collector under acid condition or kation-anion collector under alkaline condition to flotine will get good effect. Generally, after scrubbing, desliming, magnetic and flotation, quartz purity will up to 99%. 4. Acid leaching Thin acid is good for removing iron and aluminous, use thick acid and aqua regia to remove titanium and chrome. Generally, use mixed acid by above acids to remove impurity ore. According to requirements of final quartz product, control every factor of acid leaching and do the best to reduce acid concentration, temperature and dosage to control the production cost. 5. magnetic Use strong magnetic separator to remove the impurity iron is the key part. To reach a high quality of product quartz, the high intensity magnetic field is necessary to remove week magnetic impurity. In current years, strong magnetic separator is widely used to quartz dressing plant.

  Graphite beneficiation method include flotation, electrostatic separation, gravity separation, etc. Flotation is the most widely used process. Graphite mineral processing are mainly suitable for all kinds of graphite with different crystal habit and graphite accompany with mica, etc silicate minerals or pyrite. Beneficiation method: flotation, electrostatic separation, gravity separation, etc. Flotation is the most widely used process.   About graphite ore: Graphite ore include amorphous graphite and flaky graphite. Amorphous graphite also call cryptocrystalline graphite. This ore have small graphite crystal, surface is earthy and industrial performance is not good. But this graphite ore have high grade, general 60-80%. But its flotability is bad. After flotation, the grade have no remarkable increase. Thus, if the grade is lower than 65%, shall not be mined, the grade between 65-80%, selection and then use. The feature of Flaky graphite is the graphite present as flaky or foliated, raw ore grade is not high, general 3-5%, can't Exceed 20-25%. This graphite ore have good flotability and grade can up to 90% after flotation. So, raw ore grade with 2-3% can be mined. Flaky graphite have good performance and can be used to make advanced carbon product. So, we can't only consider the grade for different graphite, but also the type, then decide whether use the flotation process. Flaky graphite have good flotability, so mostly use flotation to select. In China, generally use the kerosene or diesel as collector, 2# oil or new flotation oil as foaming agent. After many years production practice, 4# oil are considered as ideal foaming agent for graphite. Generally, Cryptocrystalline graphite associate with mica etc silicate minerals. When flotation, can use starch, dextrin, organic glue, cellulose, etc agent to control the silicate minerals, for example, if the pyrite content is high, add lime and oxide.   GRAPHITE ORE BENEFICIATION METHOD Flotation is the most common method used in graphite processing plants. Basically, all the flake graphite processing plants adopt flotation to separate the graphite. In general, the beneficiation process includes: one roughing, one scavenging and seven to eleven cleaning, which can obtain the graphite concentrate with a fixed carbon content of 90%-97%. In order to protect the flake, the regrind of concentrate generally adopts sand mill. Due to its strong hydrophobicity and natural floatability, flake graphite generally uses kerosene or diesel as a collector, No. 2 oil or No. 4 oil as a foaming agent for graphite flotation. Sometimes, lime or sodium carbonate is added to adjust the pulp PH at about 8-9. As for silicate minerals containing clay, quartz, mica and feldspar, it’s necessary to add the silicate, dextrin, starch and cellulose to inhibit gangue minerals and disperse the pulp In order to continue to increase the fixed carbon content of graphite, the chemical beneficiation method is adopted to purify, such as high temperature alkali fusion acid leaching method, HF acid leaching and mixed acid leaching, chlorination melting and so on., which can produce the high purity graphite with the carbon content over 99.99%. The gravity separation is mainly used to preprocess the graphite ores, pick out the heavy minerals, discard tailings in advance. After the preliminary enrichment of graphite, flotation is used to further increase the fixed carbon content of graphite. When large numbers of pyrite, limonite, garnet, rutile, tremolite, diopside and other minerals with large proportion are contained in minerals, it’s necessary to use the gravity separation to reach the preliminary enrichment and then obtain the coarse graphite concentrate. The coarse concentrate is further enriched by flotation. Therefore, the gravity separation is only used to preprocess graphite ore and in most cases, it’s combined with fotation in actual production. At present, it’s rarely used. aphanitic graphite The raw ore grade of cryptocrystalline is generally high, with carbon content of 60-80%, and the product can be obtained after hand separation, crushing and milling process. In recent years, the flotation has also been adopted in cryptocrystalline graphite ore to increase the fixed carbon content. The separation of cryptocrystalline graphite flotation is more difficult and flotation is usually used to preliminarily enrich the graphite. The concentrate and tailings obtained by flotation are sold as crystals with different quality or the concentrate after flotation is chemically purified. Related Cases  

  Along with potassium feldspar ore reducing, quality down, the requirement of product increasing and mine comprehensive recovery development, introduce gravity separation, flotation, high-gradient separation, etc complex selection process to remove quartz, mica, iron-bearing titanium, etc associated mineral. potassium feldspar is mainly the orthoclase, microcline, perthite, etc, that is silicate minerals of potassium, sodium, calcium, etc alkali metal or alkaline-earth metals.   Potassium feldspar mining equipment mainly include jaw crusher, ball mill, desliming bucket, hydrocyclone, strong and week magnetic separator, flotation cell, etc. the main process is curshing-milling-magnetic-flotation, etc. 1. Crushing: firstly, use the jaw crusher to crush massive ore. 2. Ball mill: after crushing, use ball mill to grind ore. 3. Desliming: feed the fine ore into desliming bucket or hydrocyclone to deslime. 4. Magnetic separation: after desliming, use strong and week magnetic separator to separate magnetite and week magnetic mineral. Magnetic separation is very important for potassium feldspar and is the highest efficient equipment to remove irony mineral. 5. Flotation: at present, the strong and week magnetic separator is not suitable for all potassium feldspar ore, the flotation is a good supplement option. We need use collector, which can remove impurities efficiently and remain potassium feldspar. Jinpeng research institute can deploy different flotation agent according to different condition. 6. Acid washing concentrate: use vitriol as acid washing agent, according to acid concentration and iron content in potassium feldspar to adjust, when the vitriol concentration is certain, the iron content is in proportion to vitriol dosage. After acid washing, the Fe2O3 and Fe3O4 are removed and separate ferrous sulfate solution, then get concentrated potassium feldspar powder.

  Baryte is crisp and brittle, crystal is big tubular. Generally, use gravity separation, magnetic separation, flotation to select. Application: 1. Process High brightness minute powder and supper micropowder. After crushing, flotation, whitening, get High brightness minute powder from baryte. 2. produce barium salt products, such as lithopone, barium chloride, barium hydroxide, etc.   Introduction 1、Gravity separation Generally, use crushing, screening, and jig to get high grade concentrate(grade up to 80%). Crushing section use jaw crusher and two stage crushing process to crush baryte. Screen section use circular vibrating screen, which have large processing capacity, high efficiency, simple and useful. It is the ideal equipment to screen baryte. Jig selecting process use two kinds of jig to select the coarse and fine particle respectively after crushing. 2、magnetic separation Generally, use wet magnetic separator to select out iron-bearing mineral, such as siderite, then the baryte can be use to produce barium medicine which require very low iron content. 3、Flotation Flotation are used to separate the fine-grained dissemination baryte and tailings from gravity separation. According to different adsorption type, use fatty acid alkyl sulfate, alkane sulfonate, etc anion collector or kation amine collector to flotine baryte.  

  According to different phosphorus ore property, phosphorus ore separating process have flotation, scrubbing desliming, gravity separation, chemical leaching, combined separating, photoelectric selection, magnetic coating, etc. the flotation is most applied, including direct flotation, reverse flotation, direct-reverse flotation and double reverse flotation.   Application Phosphorus ore flotation process is suitable for complex ore texture, complex ore occurrence relationship, fine particle size, disseminated closed, mixed symbiosis, difficult monomer separation phosphorus ore. Process flowsheet 1. direct flotation process Direct flotation use effective inhibitor to control gangue mineral and collector to concentrate phosphorus in foam. It is suitable for low grade phosphorus ore, including magmatic rock type apatite and deposition metamorphic type apatite. 2. reverse flotation process: Mainly used for separation of phosphorus and dolomite. Use fatty acid collector to emerge dolomite in alkalescence medium and enrich phosphorus in tank. The greatest advantage is flotation in normal temperature and the particle size of product in tank is coarser that is good for subsequent process. 3. double reverse flotation In alkaline condition, Double reverse flotation let silicate surface take positive charge and use anion collector to separate the ore. Flotine dolomite first, then reverse flotine silicate, the heavy concentrated ore left in tank. This process can be operated under normal temperature and coarse particle size.

  Combined but flotation priority process is the most use in molybdenum ore with copper , the valuable minerals in the molybdenum ore with gold are molybdenite , pyrite , chalcopyrite.   Application Molybdenum dressing production line can be used for single or refractory molybdenum with complex properties, close sulfide minerals symbiosis and fine particle distribution Process Flotation for the molybdenum ore with less copper ,usually use mixed and priority process . The minerals in the molybdenum ore are molybdenite , pyrite , chalcopyrite , use molybdenum-copper mixed process , pyrite tailings flotation , copper – molybdenum separation and partial mixed flotation priority process . Copper –molybdenum separation and molybdenum concentrate mainly use sodium sulfide and sodium cyanide process . After processing the molybdenum ore will be 0.1% , enrichment ratio 430～520，concentrate 12 times . Molybdenum ore processing and equipment Molybdenum ore rough crushed by Jaw crusher , then grinded into a suitable particles transport by conveyor to storage . 1.Feeded by feeder into ball mill for grinding 2.The product after ball mill is transported to classifier , according the different gravity and size , wash and classify the minerals . 3.The slurry agitated with reagents into flotation machine , the flotation machine includes tank , air inflation and agitation system , in the flotation machine , the specific chemical is used for make the float encapsulate the useful minerals , then scratch the float . 4.Dewatering by high quality thickener and filter of the concentrate , and the concentrate is the final product .   Feature General process and Feature 1. crushing and classify Mix rough separation and then grinding , to make separating the molybdenum and copper , its minimum the cost 2. enforce the flotation , increase the grade reagents adding is strictly controlled in the rough separation , make sure the useless circling and damage , in the help of the second enrichment , and adding water property to reduce the impurity and enforce the flotation process .