METHOD FOR RECOVERY OF WATER AND VANADIUM COMPOUNDS FROM WASTEWATER

Author(s):  
I. Zagulski ◽  
L. Pawlowski ◽  
A. Cichocki
Keyword(s):  
2020 ◽  
Author(s):  
Debbie C. Crans ◽  
Duaa Althumairy ◽  
Heide Murakami ◽  
B. George Barisas ◽  
Deborah Roess

2015 ◽  
Vol 16 (8) ◽  
pp. 811-822 ◽  
Author(s):  
Xia Niu ◽  
Ruyue Xiao ◽  
Na Wang ◽  
Ziwei Wang ◽  
Yue Zhang ◽  
...  

CORROSION ◽  
1961 ◽  
Vol 17 (4) ◽  
pp. 185t-187t ◽  
Author(s):  
HUGH L. LOGAN

Abstract The mechanism of the attack of Type 310 stainless steel by vanadium compounds has been studied. Catastrophic attack by a mixture of 67 wt. percent V 2 O 5 + 33 wt. percent of NaVO 3 occurred at temperatures of 1900 to 2000 F if the steel had previously been oxidized and air and water vapor were present. In some instances an unidentified phase formed at the steel-slag interface attacked the steel by grain boundary penetration and adsorption of steel grains. A chemical analysis of the slag showed that the chromium-iron and manganese-iron ratios were the same in the slag as in the steel. The nickel-iron ratio, however, was higher in the slag than in the steel. This would suggest the possibility that nickel is selectively absorbed by the slag prior to general attack. 4.2.3; 4.3.3, 3.5.9, 6.2.5


1988 ◽  
Vol 40 (2) ◽  
pp. 309-316 ◽  
Author(s):  
Danuta Witkowska ◽  
Regina Olcedzka ◽  
Barbara Markowska

1995 ◽  
Vol 18 (5) ◽  
pp. 719-725 ◽  
Author(s):  
Masami NAKAI ◽  
Hiromi WATANABE ◽  
Chikako FUJIWARA ◽  
Hisao KAKEGAWA ◽  
Toshio SATOH ◽  
...  

1980 ◽  
Vol 53 (1) ◽  
pp. 101-107 ◽  
Author(s):  
Bunji Inouye ◽  
Keijiro Morita ◽  
Tatsuo Ishida ◽  
Masana Ogata

Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 431 ◽  
Author(s):  
Wen-Jen Lee ◽  
Yong-Han Chang

Vanadium dioxide (VO2) is a multifunctional material with semiconductor-to-metal transition (SMT) property. Organic vanadium compounds are usually employed as ALD precursors to grow VO2 films. However, the as-deposited films are reported to have amorphous structure with no significant SMT property, therefore a postannealing process is necessary for converting the amorphous VO2 to crystalline VO2. In this study, an inorganic vanadium tetrachloride (VCl4) is used as an ALD precursor for the first time to grow VO2 films. The VO2 film is directly crystallized and grown on the substrate without any postannealing process. The VO2 film displays significant SMT behavior, which is verified by temperature-dependent Raman spectrometer and four-point-probing system. The results demonstrate that the VCl4 is suitably employed as a new ALD precursor to grow crystallized VO2 films. It can be reasonably imagined that the VCl4 can also be used to grow various directly crystallized vanadium oxides by controlling the ALD-process parameters.


2011 ◽  
Vol 2011 ◽  
pp. 1-23 ◽  
Author(s):  
Arun Kumar Haldar ◽  
Pradip Sen ◽  
Syamal Roy

In the recent past the standard treatment of kala-azar involved the use of pentavalent antimonials Sb(V). Because of progressive rise in treatment failure to Sb(V) was limited its use in the treatment program in the Indian subcontinent. Until now the mechanism of action of Sb(V) is not very clear. Recent studies indicated that both parasite and hosts contribute to the antimony efflux mechanism. Interestingly, antimonials show strong immunostimulatory abilities as evident from the upregulation of transplantation antigens and enhanced T cell stimulating ability of normal antigen presenting cells when treated with Sb(V) in vitro. Recently, it has been shown that some of the peroxovanadium compounds have Sb(V)-resistance modifying ability in experimental infection with Sb(V) resistant Leishmania donovani isolates in murine model. Thus, vanadium compounds may be used in combination with Sb(V) in the treatment of Sb(V) resistance cases of kala-azar.


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