Sawtooth Wave Jig is a new type of energy saving and high efficient gravity separation equipment and developed based on the traditional Sine Wave Jig. The difference between Sawtooth Wave Jig and Sine Wave Jig is that the pulsation curve for jigging is sawtooth wave shape, with speedy upward flow and slow downward flow.
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beneficial if a separation could be made by fractional sublimation of these tetrachlorides. An experimental technique for determining solid vapor equilibria of the hafnium tetrachloride zirconium tetrachloride sys tem was used to obtain basic data for such a fractionating system.
Part 2. Mixer settler runs. Hydrometallurgy, 3: 275282. A process for zirconium/hafnium separation based on the distribution data given in Part 1 (Brown and Healy, 1978) has been successfully tested in a 10stage Croda mixer settler. The hafnium content of the zirconium could be reduced below the specification for nuclear grade zirconium.
Keywords: Organicinorganic membranes, Active layer, Zirconium hydrophosphate, Nanoparticles, Baromembrane separation Background Application of ultrafiltration involves a wide variety of fields, for instance, recovery of ionic species (usually enhanced by polyelectrolytes) [ 1, 2 ], treatment of brackish [ 3 ] and waste water [ 4 ], food industry (for juice concentration [ 5 ], protein recovery from whey [ 6 ]) .
The fundamental behavior underpinning a new processing concept was demonstrated which is capable of separating uranium from zirconium in UZr alloys through the formation and selective volatilization of their respective chlorides.
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employed for the recovery of zirconium from fuel materials, some experimental work of pyrohydrolysis was carried out in this study. The basic salt chosen was a mixture of LiFBeF 2 which has an eutectic point at 458°C. Experimental The pyrohydrolysis equipment used in this work is shown in Figure 1. It consists of a muffle
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For the separation of hafnium from zirconium, a CuCl2containing molten chloride salt is used to selectively extract hafnium in the zirconium produced in the electrolysis step.
May 04, 2010· The zirconium/hafnium separation studies were carried out, on the one hand, from zirconium and hafnium tetrachlorides obtained after carbochlorination (Zr/Hf ratio by weight: /), then extractive distillation.
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Mar 8, 2006 South African Institute of Mining and Metallurgy, Johannesburg, 58 ilmenite, rutile and zircon at the mineral separation plant located at the smelter site The largest major investment in capacity took place during the early 1990s Zircon sand is also used in the foundry industry as moulding sand, as it is
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Ion exchange based separation of 90Nb from zirconium targets was investigated in systems AG 1 × 8 HCl/H2O2 and UTEVAHCl. 95Nb (t 1/2 = d), 95Zr ( 1/2 = d) and 92mNb (t 1/2 = d) were chosen for studies on distribution coefficients.
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Mixed beach placer is variety of mixed ore minerals, it should separate mineral step by step though the gravity separation, wet magnetic separation, dry magnetic separation, electric separation. Then we will get ilmenite, monazite, Tin sand, rutile and zircon sand, Iron ore and other finished products, that all have a very high economic value.
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Both collected products of zirconium and silicon tetrachloride are obtained from the chlorination of zircon at optimum conditions, 1100°C for 30 minutes. The Zirconia produced by calcination of ZrCl4 at 900°C is partially stabilized in form of mixture of cubic and monoclinic.
Bubble point measurement and distillation column design for zirconium separation for nuclear power reactor 31 Korean J. Chem. Eng.(Vol. 32, No. 1) ing point difference in ZrCl 4 and HfCl 4 are a main obstacle to its commercial application for ZrHf separation. Table1 lists the properties of ZrCl 4 and HfCl 4 . ZrCl 4 and HfCl 4 directly ...
This patent describes an improvement in a process for zirconiumhafnium separation. It utilizes an extractive distillation column with a mixture of zirconium and hafnium tetrachlorides introduced into a distillation column having a top and bottom with hafnium enriched overheads taken from the top of ...
demonstrated which is capable of separating uranium from zirconium in UZr alloys through the formation and selective volatilization of their respective chlorides. Benchscale chlorination and volatilization experiments were conducted on uranium, zirconium, and a U50 wt% Zr alloy in order to gather the data needed to develop processing