May 19, 2011 The reuse of phosphate flotation tailings from a Brazilian fertilizer manufacturer has been evaluated. The use of a mixture of collectors synthetic KE and conventional increased the flotation selectivity. The flotation performance as a function of operating variables has been quantified. A grade of 29.4 wt. P 2 O 5 and a recovery of 46.2 wt. were obtained under selected operating conditions. The results shown that a reject from a phosphate
Get PriceRecovering phosphorus from these tailings Phosphate rock is a general term referring to rock with high con- could provide additional and substantial amounts of phosphate. centrations of phosphate minerals, most commonly those of the The separation of the desired mineral apatite from impurities apatite group, containing varying percentages of P2 O5 in a calcium gangue minerals and nonphosphate
Get PriceThe reuse of phosphate flotation tailings from a Brazilian fertilizer manufacturer has been evaluated. The use of a mixture of collectors synthetic KE and conventional increased the flotation selectivity. The flotation performance as a function of operating variables has been quantified. A grade of 29.4 wt. P 2 O 5 and a recovery of 46.2 wt. were obtained under selected operating conditions. The results shown that a reject from a phosphate
Get PriceIn as much as alkylphosphorus compounds and sarcosine derivatives surpass fatty acids in selectivity, apatite flotation from braziliteapatitemagnetite ore magnetic separation tailings using alkyl phosphates and sarcosine derivative reagent manufactured by a number of domestic and foreign producers was studied.
Get PriceMass and element distributions for the tailings sand reveal that very little apatite is present above 300 m, and that approx. 30 is below 20 m. REE does not follow P2O5 completely and are also present in coarser fractions.Flotation results show that the best condition for both apatite and REE winning is pH 9, high collector addition and ...
Get PriceFlotation of Dolomite from Apatite Yanfei Chen, Qiming Feng, Guofan Zhang , Dezhi Liu and Runzhe Liu ... based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite mineral was 11 for binary mixture. The flotation process was the same as single mineral tests.
Get PriceMar 15, 2013 A process applicable to different lithologies of phosphate ore with siliceous-carbonated matrix from igneous or sedimentary origin rocks includes ore preparation by comminution through crushing, grinding, and de-sliming, prior to apatite flotation. During flotation, ground and de-slimed ore pulp with high concentration of solids, above 40, is initially conditioned with depressant reagent, e.g ...
Get PriceMay 07, 2016 Pyrite has long been used as a source of sulphur, and its recovery as a by-product from the flotation of certain base metal ores is a well established practice. Large tonnages of mill tailings which have accumulated as a result of various milling operations frequently contain significant amounts of pyrite. In many instances these tailings can be treated to yield pyrite concentrates that are a ...
Get PriceJun 29, 2018 The flotation process lasted 3 min for each test. Following this, the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite mineral was 11 for binary mixture. The flotation process was the same as single mineral tests ...
Get PriceAn Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore Elves Matiolo Centro de Tecnologia Mineral CETEM ... Tailings. Apatite flotation Coarse fraction Scavenger Grade P2O5 CaO Fe 2O3 SiO 2 Al2O3 26,6 37,0 3,4 19,4 4,3 Feed R P
Get PriceAt Kovdorsky Mining-and-Processing Integrated Works apatite is floated from tailings of magnetic separation while dressing complex braziliteapatitemagnetite ore. In this process saponified tall oil fatty acids added with oxyethylated alkyl phenolsNeonol AF 9-10 and Kemir -246are used as collectors.
Get PriceSep 01, 2020 Moreover, the selectivity index SI was used to evaluate the impact of PAMS on the separation features of apatite and dolomite by direct flotation, and its calculation formula is expressed as follows Cao et al., 2019b 1 SI C A T A T D C D where SI is the selectivity index C A and C D express the apatite and dolomite recoveries in concentrate, respectively T A and T D represent the apatite and dolomite recoveries in tailing,
Get PriceNov 01, 2020 A large number of microbubbles are continuously produced by driving gas through the large-area membrane. The flotation of fine apatite particles is carried out under different operating conditions to determine the P 2 O 5 grade and recovery. A Venturi tube is also employed as a gas distributor for comparison.
Get PriceApatite is the main source of phosphorous for the making of chemical fertilizers. While apatite is usually recovered from phosphate orebodies as the primary product of a mining exploitation, this paper documents the approach taken to produce a phosphate concentrate as a secondary product from the tailings of a niobium ore concentrator. The conventional deslimingflotation scheme used to ...
Get PriceFlotation is the central process whereby we add a coagulation reagent that attracts to the surface of the apatite granules, to which it adheres. First, the reagent causes the apatite granules to stick to the air bubbles that we introduce into the flotation cell.
Get PriceThe process has multiple steps, flotation is the key principle applied to separate the apatite from the non-valuable tailings. This process is repeated in several steps to obtain a high purity product with the right specification for further processing.
Get PriceAn experimental research on comprehensive recovery of associated apatite from certain iron tailings in China was carried out. The phosphorus flotation is realized at low temperature through the application of the new, more efficient AW series collector. The test results showed that the concentrate whose P2O5 grade was 33.50,recovery was 92.18 was obtained for the tailings whose P2O5 grade ...
Get PriceUS2959281A US784391A US78439158A US2959281A US 2959281 A US2959281 A US 2959281A US 784391 A US784391 A US 784391A US 78439158 A US78439158 A US 78439158A US 2959281 A US2959281 A US 2959281A Authority US United States Prior art keywords flotation niobium concentrate minerals mica Prior art date 1958-12-31 Legal status The legal status is an assumption
Get Priceflotation of calcite stone Influence of metal ions on muscovite and calcite flotation. 20190305 As a result, the removal of calcite by flotation from the decarburized stone coal is not as good as expected The flotation behaviors of muscovite and calcite have been widely reported 19,20,21,22 , but the flotation separation of these two minerals in solution with respect to the ...
Get Priceflotation process in wastewater treatment ppt - . 2020-4-13 flotation process in wastewater treatment ppt Dec 26, 2014 Flotation process sometimes called flotation separation is a method of separation widely used in the wastewater treatment and mineral processing industries.
Get PriceMay 29, 2020 Tests with tailings sand waste material which is a by-product of mining from the two mines and the respective processing plants will be carried out in campaigns. Right now, a production campaign is underway in Malmberget. The process has multiple steps, flotation is the key principle applied to separate the apatite from the non-valuable tailings.
Get PriceTests with tailings sand waste material which is a by-product of mining from the two mines and the respective processing plants will be carried out in campaigns. Right now, a production campaign is underway in Malmberget. The process has multiple steps, flotation is the key principle applied to separate the apatite from the non-valuable tailings.
Get PriceThe aim of this study is to determine the feasibility of using a centrifugal heavy medium separation CHMS method to obtain apatite concentrates from ore slimes particle size 45 m, 4.5 P2O5. The effects of the specific gravity, centrifugal speed, and time on the P2O5 content of the product and its recovery were investigated based on the BoxBehnken approach.
Get PriceTests with tailings sand waste material which is a by-product of mining from the two mines and the respective processing plants will be carried out in campaigns. Right now, a production campaign is underway in Malmberget. The process has multiple steps, flotation is the key principle applied to separate the apatite from the non-valuable ...
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