A recovery of 91% Ti and 95% Fe was achieved Based on chemical analysis of dust, recovering using 6M HCL and 0.5M methanol in comparison of Re in leaching process, would results a with 53% Ti and 60% Fe recovery using only 6M 300 ppm of rhenium leach solution content.
1 Humma Akram Cheema, Sadia Ilyas, Shafaq Masud, Muhammad Ahmad Muhsan, Iftikhar Mahmood, Jae-chun Lee, Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP, Separation and Purification Technology, 2018, 191, 116CrossRef
Molybdenum and Rhenium Recovery Figure 8 details the process sequence employed for recovering molybdenum and rhenium from the electrooxidation reaction pulp. Liquid-solids separation was accomplished in two 3-foot rake thickeners in series with a 1- by 3-foot washing rotary drum filter.
structure of an alcohol affects the extraction capacity of TIOA for rhenium(VII) as follows: 1-octanol sup-presses the extraction of rhenium(VII) to a greater extent than does 2-ethyl-1-hexanol (Fig. 1). This is ... RECOVERY OF RHENIUM(VII) WITH TRIISOOCTYLAMINE FROM SULFURIC ACID …
To hasten the process, or to improve rhenium recovery values, the catalyst can be suitably ground, pulverized, crushed, powderized, or otherwise diminished in size before or during the extraction process. ... Method for extracting rhenium from rhenium-containing waste liquor CN104755163A (en)
At 160° C and an oxygen overpressure of 800 kPa (116 psig).Rhenium recovery using sodium bicarbonate (Angelidis et al. 2001). the authors report a rhenium recovery of 98% (Han and Meng. a reductant such as carbon monoxide or hydrogen is used. a dilute solution of sulfuric acid (0.Figure 14 .150° C.. lowering the dissolution of the alumina ...
Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP. ... N.S. BekturganovReview of technologies for rhenium recovery from mineral raw materials in Kazakhstan. Hydrometallurgy, 109 (2011), pp. 1-8.
Read "Recovery of rhenium and molybdenum from a roaster fume scrubbing liquor by adsorption using activated carbon, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
In situ leaching of rhenium from uranium ores, recovery of rhenium from pregnant leach liquor (extraction methods and sorption methods) and precipitation of rhenium from nitrate-sulfate eluates by water-soluble polyelectrolytes is reported on in the penultimate chapter.
A preliminary study on the hydrometallurgical recovery of rhenium from an engine-reverted superalloy, CMSX-4, was performed. The novelty of this work dealt with (i) the applicability of electro-generated Cl 2 in rhenium leaching and (ii) the maneuvering of the organic extractants based on the metal speciation in leach liquor. In a two-step HCl leaching, more than 98% rhenium was selectively ...
The implementation of this technology of processing mother liquor derived from solid-phase stripping of rhenium results in an average recovery from these solutions of 80 per cent of the osmium metal. (80 per cent is direct recovery of osmium from the mother liquor, the other 20 per cent in solid and liquid byproducts is recycled.)
The paper deals with the development of rhenium recycling technology from the waste of nickel-based heat-resistant alloys which is an urgent problem because of rising demand for the rare metal from catalysts and superalloys producers. An overview of rhenium recovery methods from heat-resistant alloys scrap is presented. The advantage of the …
MSP-REFRAM Final Conference Rhenium production Brussels 9 – 10 March 2017 Date: ... Freeport McMoRan Copper&Gold in Arizona is the only roasting plant for rhenium recovery in the USA. Date: 20/03/2017 * In some countries, such as ... liquor . Preparation of NH 4 ReO 4 Reduction Mixing of rhenium powder Pressing of rhenium …
The application of the abovementioned rhenium recovery procedure may simplify considerably the conventional applied procedure, because of the substitution of the expensive and complicated separation of rhenium from the product of the complete dissolution of the catalyst mass by a rather simple and inexpensive process (Figures 1 and 2).
Rhenium is recovered from dusts and fumes collected in molybdenite roasting by leaching and adsorption with activated carbon. Further recovery from the carbon is accomplished by elution with a water- soluble alcohol or a water-alcohol mixture, if molybdate is first eluted with brine.
1 Humma Akram Cheema, Sadia Ilyas, Shafaq Masud, Muhammad Ahmad Muhsan, Iftikhar Mahmood, Jae-chun Lee, Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP, Separation and Purification Technology, 2018, 191, 116CrossRef;
Jul 08, 1986· The resulting mother liquor contains about 0.61 parts of rhenium which is about 85% of the starting rhenium and about 0.88 parts of tungsten which is about 4% of the starting tungsten, the major part of the tungsten being in the white solid.