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investigations of the chemical compatibility of

2: results obtained with the f*a*c*t code for the -oxygen with excess ... the remaining of the sample was into a fine powder that.

rhenium enrichment in the muratdere cu-mo (au-re

nov 1, 2019 — despite our understanding that the re in porphyry is located ... each sample was to <500 μm, and 1.5 g of sample and 0.5 g of ...

us5382388a - process for the preparation of rhenium-188

mallinckrodt inc: university of missouri ; original assignee: university of ... difficult and tedious task of and grinding the precipitated dried gel in ...

synthesis and characterisation of phosphorescent rhenium (i

jul 15, 2017 — the complexes were all found to be luminescent, revealing classical ... these have shown great application in analytical disciplines [6]. ... to cool to room temperature and poured over ice (200 g).

recovery of rhenium from sulfuric acid solution by topo

jan 11, 2020 — onto impregnated sorbent in sulfuric acid solution was ... sorbent pieces were , washed with dis- ... porous of silica.

equilibrium, kinetics, and thermodynamics studies on the

jan 31, 2012 — (1) taking into account the declining resource of and ... waste printing paper was , washed with soap and water, and treated ...

(pdf) extractive metallurgy of rhenium: a review

jul 15, 2015 — recovery reached 97% for catalysts, and 87% ... of re from the mixed , representing a long and complex process with ...

a system dynamics assessment of the supply of molybdenum

dec 2, 2020 — global and were mapped using. analysis ... model for the global production rate of sand, gravel, .

mobility of rhenium, platinum group elements and organic

this indicates recent disturbance of the re^os . isotope mass balance ... keywords: black shale; weathering; osmium; ; organic carbon; geochemical cycle ... quently, the samples were into pea-sized chunks with a ...

a simple system dynamics model for the global production

may 18, 2017 — sand and gravel are characterized by the fact that the ... 2016), and (sverdrup 2016) and cobalt (sverdrup et al.

mechanical properties and structure of tungsten-rhenium

jan 1, 1988 — three were compared: a alloy with 2% , an alloy with dispersed additions of yttrium and hafnium oxides, and ...

rhenium(i) polypyridine biotin isothiocyanate complexes as

dec 19, 2007 — the avidin−biotin is a useful tool in immunology, ... (0.17 mmol) and finely caco3 (64 mg, 0.64 mmol) in acetone (10 ml) ...

crystallization of rhenium salts in a simulated - hanford.gov

the resulting glass was quenched on an inconel plate and inside a ... to a vacuum with a compression fitting and evacu- ated. once the ...

microstructure and properties of tungsten rhenium alloy

oct 23, 2020 — alloy with addition of and tantalum was prepared by laser ... had a significant effect on the powder and tantalum powder. ... vb group element in the elemental cycle , cas is 7440-25-7, and ...

structures and transformation kinetics of phases in the

kinetics of uranium-rich phases in the uranium- was undertaken as part of a ... this alloy was then and chunks approxi mately 1-2 mm in

design, synthesis and in vivo evaluation of 3-arylcoumarin

nov 1, 2020 — 3-arylcoumarin derivatives of with antimicrobial properties. ... antibacterial efficacy in s. aureus-infected zebrafish embryos in vivo ... per each group was manually and plated in bhi agar medium.

application of the rhenium-osmium isotope

geochemists have utilized the 187re-187os isotope as a ... sample processing occurred in the rock and clean labs of the university of.

selective rhenium recovery from spent reforming catalysts

apr 3, 1999 — selective recovery from spent reforming catalysts ... and packed column reactors with and uncrushed catalyst extrudes. ... separations of perrhenate using aqueous biphasic and the analogous ...

challenges in metal recycling | science

aug 10, 2012 — it is these -level topics that are the focus of the present work. ... specific cases of nickel and from end-of-life aerospace superalloys. ... the more basic technologies ( , , magnetic sorting) are ...

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