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The remaining sample was passed through a Frantz Isodynamic Separator and a nonmagnetic fraction was examined for its mineralogical content with the aid of a binocular microscope and an x-ray diffractometer. The nonmagnetic concentrates primarily contain phyllite fragments, muscovite, sphene, zircon, apatite, tourmaline, rutile, and anatase.
The concentration was carried out in a shaking table followed by four cycles of magnetic separation using a Frantz isodynamic separator with currents ranging from 0.5 and 0.6 A (0.5 to 0.6 T).
Each part has been separated by a manual magnet to separate the magnet and electromagnetic separation (Frantz Isodynamic Separator) for magnetic, weak and non-magnetic parts. Checked under microscope and polarization microscope to identify existing heavy metals and identify their visual and morphological properties.
Mar 26, 2020· The most used is the Frantz isodynamic magnetic separator, a very versatile magnetic separator. The magnetic separator is composed of a vibrating trough with inclinations in its longitudinal and transverse directions, which is close to two electromagnets of adjustable current, which determine the flow density of the magnetic field.
Jul 01, 2018· The rock samples were crushed using a jaw-crusher and a disk mill. Separation of non-magnetic heavy minerals included conventional procedures, as hand-panning, use of dense fluids (bromoform) and Frantz isodynamic magnetic separator. The concentrates were then examined under a binocular lens and the zircon grains were randomly handpicked.
Caracterización geoquímica de minerales pesados recolectados en la zona nor-occidental del E stado B olívar. Adriana C. Gamero M. 1, Marlys de Los A. Reveti M 1, Yalimay Jiménez 2, Rubén Rodríguez 2, Freddy Angulo 2, Ruthman J. Hurtado H. 1, Ander de Abrisqueta R. 1-2 1 Departamento de Geología.
Because the Frantz ® Isodynamic Separator has a virtually unlimited useful life, elements of the LB-1 Magnetic Barrier Laboratory Separator were consequently designed so that all parts can be installed in the base and the magnetic circuit of any Isodynamic Separator to convert it to a Barrier Separator.
A fraction - 2 1 0 + 74/zm was produced by grinding and further purified in a Frantz isodynamic magnetic separator and in a Magstream apparatus. The material was ground to - 3 7 / ~ m , washed with distilled water and dried at 80 C.
Zircon concentrates were extracted from rock samples by using conventional gravimetric and magnetic (Frantz isodynamic separator) techniques at the Geochronological Research Center, University of São Paulo. Final separation was achieved by hand pick- ing, to …
The detrital zircon grains were separated from rock samples (5–7 kg) using standard techniques including crushing, sieving and separation by Frantz isodynamic magnetic separator and heavy liquid (bromoform). For heavy mineral separation, only detrital zircon …
Magnetic separation was performed with a ferrite magnet and Frantz isodynamic magnetic separator. The products of interest (0.3 and 0.5 A) were analyzed under the stereomicroscope and, for each sample, at least ten garnet grains were hand-picked to cover the widest possible variety of crystals using characteristics such as color, form, and size.
Separator l : (1) minerals magnetic at 0.2 amp., (2) This was the case in the regional extensive pilot studies recently conducted as part of the Projeto Geofisico Brasil-Canada (sequentially those magnetic at 0.1, 0.5, and 1 amp. on the Frantz Isodynamic Separator and the non-magnetic fraction at …
Precambrian Research 155 (2007) 69–97. Geochemistry and zircon geochronology of the I-type high-K calc-alkaline and S-type granitoid rocks from southeastern Roraima, Brazil: Orosirian collisional magmatism evidence (1.97–1.96 Ga) in central portion of Guyana Shield Marcelo E. Almeida a,b,∗ , Moacir J.B. Macambira b , Elma C. Oliveira b a CPRM-Geological Survey of Brazil, Av. André
2.4 ANALYTICAL PROCEDURES Zircon concentrates were extracted from ca. 10 kg rock samples, using conventional gravimetric (DENSITEST®) and magnetic (Frantz isodynamic separator) techniques at the Geochronology Laboratory of the University of Brasília. Final purification was achieved by hand picking using a binocular microscope.
Nov 01, 2020· The samples were passed successively through a Frantz isodynamic magnetic separator (with forward tilt of 25° and side tilt of 15°) at 0.5 A and 1.0 A. The non-magnetic fraction from 1.0 A pass was selected for density separation using heavy-liquids (tetrabromoethane and di-iodomethane).
For more than 80 years, S.G. Frantz® has been manufacturing Magnetic Separators for the removal of fine magnetic particles from liquids, slurries, gases, dry granular materials and powders. By leveraging our extensive knowledge and expertise, we have been able to continually develop and improve upon the technology of our products.
S.G. Frantz ® Permanent Magnet Separators utilize a stack of stainless steel grids magnetized by permanent magnets to collect even the finest particles.
Zircon concentrates were extracted from ca. 10 kg rock samples, using conventional gravimetric (DENSITEST ®) and magnetic (Frantz isodynamic separator) techniques at the Geochronology Laboratory of the University of Brasília. Final purification was achieved by hand picking using a …
S.G. Frantz L-1 Isodynamic Laboratory Separators have proven to be extraordinarily reliable over a period of more than 50 years. In fact, the first unit produced is still in use today. If you are in need of a dependable Isodynamic Laboratory Separator, contact S.G. Frantz.
was purified in a Frantz magnetic isodynamic separator with a field of 18.000 Gauss. Figure 1 presents the X-ray dif-fraction patterns of purified samples and indicates that there is a trace of quartz in both samples. Table 1 pres-ents the chemical compositions of both the smithsonite and dolomite samples. Mineral sample Chemical composition
Nov 23, 2000· The concentrates were then passed through a Frantz isodynamic magnetic separator to obtain a pure zircon fraction. At least 100 representative zircons were hand-picked from this fraction under a binocular microscope, mounted in a one inch diameter epoxy disk with standard zircon crystals SL13 + AS3 and sectioned approximately in half.
Nov 01, 2012· Heavy minerals were concentrated using the table. Non-magnetic minerals were separated by employing a Frantz isodynamic magnetic separator. By exploiting differences in mineral densities, other non-magnetic minerals (quartz, feldspars, and apatite) were separated in a column of methylene iodide heavy liquid.
Sanidine was separated using a Frantz Isodynamic magnetic separator and heavy liquids. The sanidine concentrates were cleaned with dilute hydrofluoric acid in an ultrasonic bath for 5 minutes to remove adhering groundmass, and finally handpicked to purity. Size fractions used in the various experiments are listed in Table 1.2.
Calibration curve of a Frantz Isodynamic Separator Model L-I. 9 Ferrous Ammonium Sulphate. “ Nickel Sulphate. ~ Cup¡ Sulphate.  Cup¡ Bromidr Magnetic Susceptibilities of Orthopyroxenes 339 TABLE II Fe~ous Ammoninm Sulphate Nickel Sulphate Cupric Sulphate Cup¡ Bromide ! Current I …
Laboratory Separators – S.G. Frantz. Model L-1CN Magnetic Separators. S.G. Frantz ® Canister Separator (Model L-1CN) is a bench-top high-gradient, high-intensity canister-style magnetic separator used for processing liquid suspensions of fine particles.Because the magnetic gap inside the L-1CN is narrow, the number of ampere turns required is substantially less than other designs.
An electromagnetic separator (Frantz Isodynamic) was used to separate and classify each heavy minerals species, depending on their magnetic susceptibility. Thus prepared, more than 500 grains per samples (from the 0.5-1 mm size fraction) were mounted on thin sections and analyzed using a Cambridge Microscan M9 with EDS system.
Almeida et al 2007_Precambrian 155 69-97.pdf - Free download as PDF File (.pdf), Text File () or read online for free.
MR-02), in which phenocrysts of magnetic minerals were observed, were crushed below 1 mm and submitted to the ferrite magnet and Frantz isodynamic magnetic separator (0.3, 0.5, 0.6, 0.8, 1.0 and 2.0A) in order to obtain a separation of the material according to its magnetic properties.
The zircon concentrate was prepared at the Laboratório de Preparação de Amostras para Geoquímica e Geocronologia (LOPAG) of DEGEO/UFOP using conventional jaw crusher, milling, manual panning, heavy liquids separation and magnetic-Frantz isodynamic separator.
Os concentrados de minerais pesados foram separados por de separação gravimétrica utilizando bateias e os concentrados de zircão foram separados em separador magnético (Frantz isodynamic separator). Os grãos de zircão foram separados por catação manual, utilizando-se lupa binocular.
With careful use of heavy liquids, and a Franz Isodynamic Magnetic Separator, it is possible to obtain mineral concentrates with a purity of 95 percent or better.
magnetic (Frantz isodynamic separator) techniques. Final separation was achieved by hand picking using a binocular microscope. Titanite grains were dissolved in concentrated HF and HNO 3 (HF:HNO 3 = 4:1), and a 205Pb–235U spike was used. Chemical extraction followed standard anion exchange technique using Teflon micro columns.
The Frantz Isodynamic ® Separator (Model L-1), used in virtually all of the geological laboratories of the world, was designed for the separation of mineral samples in dry form. It utilizes an electromagnet to separate according to magnetic susceptibility. The L-1 offers two distinct operating modes.
For analyses UePb zircon were extracted from ~10 kg rock samples, using conventional gravimetric (DENSITEST) and magnetic (Frantz isodynamic separator) techniques at the Geochronology Laboratory of the University of Braslia.
Foi utilizado um separador eletromagntico de alta intensidade via mida, modelo L4, Inbras-Eriez (WHIMS - wet higth intensity magnetic separator) com uma corrente de 15 A, que equivale a uma intensidade de campo magntico de 8,5 kG sem matriz, representado na Fotografia 14. Nos ensaios efetuados empregou-se matriz de tela expandida fina. 72
Mar 01, 1996· The sample was purified by using a Frantz isodynamic magnetic separator, washed with distilled water and dried at 80. Basmaesite was extracted from a sample of the rare-earths ore obtained from Pocos de Caldas, MG, Brazil, supplied by MINEGRAL SA.
Another magnetic sep- washed, non-magnetic fraction at 1.0A is once more aration takes place by means of an Isodynamic Frantz processed in the Frantz separator using different lateral (Fig. 1H). Initially the material from Caneca 1 is pro- inclinations (10 , 8 , 6 , etc.) and keeping amperage cessed with maximum initial amperage of 0.4 A and a
1Serviço Geológico do Brasil, Residência de Fortaleza, Avenida Antônio Sales, 1418, Bairro Joaquim Távora, subsequently the magnetic portion was separated using a Frantz isodynamic separator. Zircon grains were separated manually in binocular loupe for mount preparation. The grains