Isopiestic Studies on Rare Earth Chloride Quaternary System (H2O + LaCl3 + PrCl3 + NdCl3) and Ternary Subsystems. Journal of Chemical & Engineering Data 2013, 58 (9) ... IUPAC-NIST Solubility Data Series. 87. Rare Earth Metal Chlorides in Water and Aqueous Systems. Part 1. Scandium Group (Sc, Y, La).

In the structure of the novel chloride carbides, the rare-earth atoms (Y and Dy) form a distorted cubic close packing ( ccp) (Fig. 3 ). If one considers Cl and C as equal-size spheres, the ...

Methods for transforming rare earth (RE) sulfate into chloride mainly include extraction process with organophosphonic mono-acids or aliphatic acids and precipitation process with ammonium bicarbonate (NH 4 HCO 3).In this paper, alkylphenoxy carboxylic acids(HAs) of p-dodecylphenoxy acetic acid (HA-I), p-dodecylphenoxypropanoic acid …

Case, M. E. et al. Extraction behavior of selected rare earth metals from acidic chloride media using tetrabutyl diglycolamide. Solvent. Extr. Ion Extract. 35(7), 496–506 (2017).

The rare earth chlorides | Journal of Chemical & Engineering Data. RETURN TO ISSUE PREV Article NEXT. Isopiestic determination of the activity coefficients of some aqueous …

Tae-Kyo Lee Yong-Zun Cho H. Eun S. Son Intae Kim T. Hwang. Materials Science, Chemistry. 2012. The dehydration schemes of rare earth (La, Ce, Nd, Pr, Sm. Eu, Gd, Y) chloride hydrates was investigated by using a dehydration apparatus. To prevent the formation of the rare earth oxychlorides, the…. Expand.

Here we report the crystal structures of the chloride phases, Y 2 Cl and DyCl, and chloride carbides Y 2 ClC and Dy 2 ClC, as well as the structure of iron chloride, FeCl 2. The structures were ...

The objective of this research is to evaluate an alternative method for separating and recovering rare earth chlorides (RECl). Recent research demonstrated that rare earth oxides can be successfully converted to rare earth chlorides using ammonium chloride (NH 4 Cl) as the chloritizing agent [2, 3]. The conversion proceeds according to …

The rare earth precursors (e.g., oxide, fluoride or chloride) must be purified before reduction as minor impurities that are more noble will also be reduced and cannot be easily removed. This purification step is accomplished through mineral processing and hydrometallurgy using leaching, solvent extraction, and ion exchange.

Processes | Free Full-Text | Solubility of Rare Earth Chlorides in Ternary Water-Salt Systems in the Presence of a Fullerenol—C60 (OH)24 Nanoclusters at 25 °C. Models of …

Based on the industrial applications of jet pyrolysis technology and it being used for the production of rare earth oxides, the paper hopes to find out an efficient, economic, and environmental friendly new technology which is suitable for production of rare earth oxides. In this paper, a chloride pyrolysis water model is designed, and …

Solubility data for the rare earth chlorides LaCl 3 (s), NdCl 3 (s) and ErCl 3 (s) in HCl bearing water vapor are reported from 350 to 425 °C and pressures from 8 to …

Abstract The extraction of rare-earth elements (REEs) from chloride solutions (0.01 M HCl + 0.1 M NaCl) in hexane–propanol–water ternary systems using a Cyanex 572 extractant is studied. A change in the component ratio is shown to have a significant effect on both the partition coefficients of REEs and their separation factors. …

Scandium Chloride Powder, Yttrium Chloride Powder, Lanthanum Chloride, Cerium Chloride, Praseodymium Chloride, Neodymium Chloride, Samarium Chloride, Europium Chloride, Gadolinium …

Rare earth double salts first are converted to the corresponding RE hydroxide, and then are selectively dissolved by HCl, leaving thorium in the solid residue. Very small amounts of thorium and uranium in the rare earth chloride solution are removed by ion exchange (IX). The resin used is not disclosed. Download : Download full-size …

It is clear that in all rare earth chloride cases, the effect of viscosity reduction is the predominant in that temperature region. Download : Download full-size image; Fig. 3. Specific conductance of 0.001 M NdCl 3 as a function of temperature at several pressures. Download : Download full-size image; Fig. 4.

The solubility in triple water-salt systems containing NdCl3, PrCl3, YCl3, TbCl3 chlorides, and water-soluble fullerenol C60(OH)24 at 25 °C was studied by isothermal saturation in ampoules. The analysis for the content of rare earth elements was carried out by atomic absorption spectroscopy, for the content of fullerenol—by electronic …

For typical rare earth compounds, n is 3/2 for oxides and is 3 for chlorides and fluorides. The coefficient m is the stoichiometric amount of X required in the …

Synonyms: Rare Earth Chloride CAS Number: Proprietary Product Use: Aqueous phosphorous reduction media for waste water treatment Manufacturer/Supplier Identification: Neo Chemicals & Oxides, LLC 8101 E. Prentice Avenue, Suite 525 Greenwood Village, CO 80111 Telephone: +1 (303) 843-8040 Facsimile: +1 (303) 843 …

Work of desolvation values for rare-earth-metal perchlorate, chloride, and nitrate electrolytes across the rare-earth-metal series from 0.1 to 1 m are relatively uniform and are in the sequence of perchlorates > chlorides > nitrates. Changes in T..delta..S in this region are in the sequence of perchlorates > nitrate > chlorides and reveal a ...

In the MSE process, a rare earth compound (usually a chloride, fluoride or an oxide) is dissolved in a molten salt medium under an inert atmosphere while an electrical current is circulated through the unit. Historically, the chloride system was favored by the industry; however, intensification imperatives lead to the conversion toward the ...

Rare earth element (REE) data for groundwater samples from the Deep-Basin Brine aquifer of the Palo Duro Basin, Texas, USA, illustrates the potential use of REE for inferring groundwater flow paths through different geologic materials. The REE content of the groundwaters range over 2.5 orders of magnitude and are depleted by 10 2 to 10 5 ...

Present report delt with the studies on complexation of rare earth metals (REMs) present in chloride leach liquor of monazite with phosphoric extractant, di-2-ethylhexyl phosphoric acid (D2EHPA). Further, the co-ordination chemistry was studied by determining the complex formation, its structure and validation with standard …

Manufacturer of rare earth chemicals for the aerospace, agricultural, automotive, laboratory, military, mining, oil field and wastewater treatment industries. Processes include chemical and physical vapor deposition, electrolysis, electroplating, spray, vibratory and distillation. High purity specifications range from 99 to 99.9999 % …

Coordination copolymerization of butadiene and isoprene with rare earth chloride–alcohol–aluminum trialkyl catalytic systems ... and monomer reactivity ratios for catalytic systems containing various rare earth elements in III-B family and different solvents were determined.

In addition, three weakly coordinating rare-earth chloride ions were involved in the rare-earth-containing complex according to the electroneutrality principle. Therefore, the extraction mechanism of Y(III) by ILs could be represented by the following equations: (10) Y aq 3 + + 1.5 N 444 Bn MA org + 3 Cl aq − = N 444 Bn 1.5 Y MA 1.5 Cl 3 org ...

The molten salt electrolysis method includes rare earth fluoride (REF 3-LiF-RE 2 O 3) and rare earth chloride (RECl 3-MeCl x) two systems. Fig. 3 shows the electrolysis production process of rare earth molten salt. Compared to the latter, the fluoride system has the advantages of higher current efficiency and metal yield, stable electrolyte …

Object moved to here.

Boosting the extraction of rare earth elements from chloride medium by novel carboxylic acid based ionic liquids - ScienceDirect. Journal of Molecular Liquids. …

In chloride electrolysis process, the rare earth chloride is dissociated into rare earth ion (RE 3+) and chlorine ion (Cl-) in a chloride-fused salt. Under the effect of DC electric field, the rare earth ions move toward the cathode and obtain electrons at the cathode, so as to precipitate liquid metal. The chlorine ions move toward the anode ...

A series of rare-earth chlorides has been adopted to catalyze dehydrogenation reaction of NaAlH 4.X-ray diffraction analysis and isothermal dehydrogenation measurement have proved that these chlorides enhance the dehydrogenation kinetics and lower the decomposition temperature of NaAlH 4.The …

A model has been developed for calculating thermodynamic properties and phase equilibria in binary and multicomponent aqueous systems containing rare earth …

The dehydration schemes of rare-earth chlorides. V. Hong, J. Sundström. Published 24 November 1997. Chemistry, Materials Science. Thermochimica Acta. View …

Rare earth chloride is 100 times less acidic than other coagulants. Rare earth chloride replaces other coagulants with a dose volume 25% or less. These two mechanisms combine to result in a reduction of acid addition of 300-500 times. Rare earth chloride reduces chemical alkalinity consumption by

Rare earth chloride products have been used in over 50 facilities, from 0.02 MGD to 45 MGD in size, in states such as Wisconsin, ia, Pennsylvania, New York, Minnesota, Vermont, Ohio, Illinois, Indiana, Texas, Washington, and …