tantalum niobium determination

Determination of Tantalum in Niobium Analytical Chemistry

The solvent extraction of the Thiocyanate complexes of Titanium, Niobium and Tantalum. Analytica Chimica Acta 1963, 29, 312-320. DOI: 10.1016/S0003-2670(00)88621-3. Nobuo Suzuki, Takashi Omori. Studies on Solvent Extraction using Radioactive Isotope. X. Solvent Extraction of Zirconium-95 and Niobium-95 with Acetylacetone.

Get Price

The determination of tantalum and niobium. A review

The determination of tantalum and niobium. A review M. H. Cockbill, Analyst, 1962, 87, 611 DOI: 10.1039/AN9628700611 If you are not the

Get Price

The separation and determination of niobium and tantalum

A procedure is outlined for the separation and determination of niobium and tantalum by paper chromatography. A mixture of methyl iso butyl ketone and hydrofluoric acid was used as solvent and the metals were detected by means of 8-hydroxyquinoline. The

Get Price

Separation and determination of tantalum and niobium by

An attempt to separate niobium and tantalum by precipitation from homogeneous solution by thermal decomposition of their peroxy complexes, in the presence of tannin and oxalate, has been only moderately successful.

Get Price

The determination of tantalum and niobium. A review

The determination of tantalum and niobium. A review M. H. Cockbill, Analyst, 1962, 87, 611 DOI: 10.1039/AN9628700611 If you are not the

Get Price

Tantalum Determination in Presence of Niobium by

Determination of tantalum and its separation from niobium and other closely associated elements using tetra-n-pentylammonium bromide. Analytical Chemistry 1969,41 (1),193-195.

Get Price

Spectrophotometric determination of niobium in tantalum

As a result, an improved method for the determination of traces of niobium in tantalum metal has been developed. In this method the niobium is isolated from tantalum by 4 successive extractions with hexone (i.e., methyl isobutyl ketone or 4-methyl-2-pentanone) ; and from tungsten and molybdenum by extraction with oxine-chloroform solution5. Niobium is then determined by the spectrophotometric

Get Price

[Determination of trace niobium and tantalum in rock

[Determination of trace niobium and tantalum in rock sample by atomic emission spectrometry] Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Oct;22(5):843-4. [Article in Chinese] Authors Hui-zhi Li 1,Chang-li Zhou, Chuan-nan Luo. Affiliation 1 Department of Applied Chemistry, Jinan

Get Price

Determination of niobium and tantalum in titanium-base alloys

Determination of Niobium and Tantalum in Titanium-Base Alloys John L. Hague and Lawrence A. Machlan A procedure for t he determin ation of niobium and tantalum in titanium-base alloys is described. The sample is dissolved in a mixture of hydrochloric and hydrofluoric acid, and oxidized with a minimum of nitric acid. The resulting solution is transferred to a column containing a strong

Get Price

The separation and determination of niobium and tantalum

A procedure is outlined for the separation and determination of niobium and tantalum by paper chromatography. A mixture of methyl isobutyl ketone and hydrofluoric acid was used as solvent and the metals were detected by means of 8-hydroxyquinoline. The minimum amount of each element detectable is 20 μg. The procedure was applied successfully to the quantitative determination of small amounts

Get Price

THE DETERMINATION OF TANTALUM IN NIOBIUM (Technical

OSTI.GOV Technical Report: THE DETERMINATION OF TANTALUM IN NIOBIUM. THE DETERMINATION OF TANTALUM IN NIOBIUM. Full Record; Other Related Research

Get Price

Separation and determination of tantalum and niobium by

For a tantalum/niobium ratio of 1:1 the niobium coprecipitation is reduced to 5 %. Furthermore, two alternative possibilities are presented: (1) a quantitative recovery of a tantalum precipitate at small oxalate and high tannin concentration, leaving 90% of the tantalum-free niobium in solution; (2) an 85 % recovery of niobium-free tantalum at high oxalate and small tannin concentration. A

Get Price

Determination of niobium and tantalum with

Determination of niobium and tantalum with quinaldinohydroxamic acid. A. K. Majumdar 1 & Bijoli K. Pal 1 Fresenius' Zeitschrift für analytische Chemie volume 184, pages 115–118(1961)Cite this article. 28 Accesses. Metrics details. Summary. A new method has been described for the gravimetric estimation, from a tartrate solution, of niobium and tantalum by quinaldinohydroxamic acid. In the ph

Get Price

OSA Quantitative determination of tantalum and niobium

Quantitative determination of tantalum and niobium in tantalum–niobium ore using laser-induced breakdown spectroscopy Li Liu and Zhongqi Hao Author Information . Author Affiliations. Li Liu 1 and Zhongqi Hao 1, 2, * 1 College of Physics Science and Engineering Technology, Yichun University, Yichun, Jiangxi 336000, China 2 School of Measuring and Optical Engineering, Nanchang Hangkong

Get Price

Method of low tantalum amounts determination in niobium

A method of determination of low amounts of tantalum in niobium and niobium compounds without its prior separation by means of inductively coupled plasma optical emission spectrometry (ICP-OES) has been worked out. The method involves dissolution of the analyzed samples of niobium as well as its various compounds (oxides, fluorides, chlorides, niobates(V)) in fluoride environments

Get Price

Quantitative Determination of Tantalum and Niobium in

Quantitative Determination of Tantalum and Niobium in Tantalum-Niobium Ore Using Laser-Induced Breakdown Spectroscopy Appl Opt. 2019 Jan 10;58(2):461-465. doi: 10.1364/AO.58.000461. Authors Li Liu, Zhongqi Hao. PMID: 30645328 DOI: 10.1364/AO.58.000461 Abstract Tantalum-niobium (Ta-Nb) ore is the main source of two very important rare metals,Ta and Nb. However, it is still a

Get Price

Determination of niobium and tantalum in titanium-base alloys

Determination of Niobium and Tantalum in Titanium-Base Alloys John L. Hague and Lawrence A. Machlan A procedure for t he determin ation of niobium and tantalum in titanium-base alloys is described. The sample is dissolved in a mixture of hydrochloric and hydrofluoric acid, and oxidized with a minimum of nitric acid. The resulting solution is transferred to a column containing a strong

Get Price

Determination of Niobium and Tantalum in Minerals, Ores

01/05/2002· Determination of niobium, tantalum, zirconium and hafnium in geological materials by extraction chromatography and inductively coupled plasma mass spectrometry. Analytica Chimica Acta 2002, 458 (2),375-386. DOI: 10.1016/S0003-2670(02)00076-4. X. J. Yang, C. Pin. A NOVEL SOLID-PHASE EXTRACTION SCHEME FOR THE GROUP SEPARATION OF HIGH FIELD STRENGTH

Get Price

DETERMINATION OF NIOBIUM AND TANTALUM BY

osti.gov journal article: determination of niobium and tantalum by roentgenoradiometric method.

Get Price

Determination of niobium and tantalum with

Determination of niobium and tantalum with quinaldinohydroxamic acid. A. K. Majumdar 1 & Bijoli K. Pal 1 Fresenius' Zeitschrift für analytische Chemie volume 184, pages 115–118(1961)Cite this article. 28 Accesses. Metrics details. Summary. A new method has been described for the gravimetric estimation, from a tartrate solution, of niobium and tantalum by quinaldinohydroxamic acid. In the ph

Get Price

DETERMINATION OF HYDROGEN IN TANTALUM, NIOBIUM,

osti.gov journal article: determination of hydrogen in tantalum, niobium, and uranium

Get Price

Investigations into the analytical chemistry of tantalum

IV. A new method for the separation of tantalum from niobium. V. The detection and determination of tantalum in niobium compounds A. R. Powell and W. R. Schoeller, Analyst, 1925, 50, 485 DOI: 10.1039/AN9255000485 If you are not the

Get Price

TANTALUM NIOIUM

Tantalum is a rare element on Earth and its annual production is minute relative any of the ‘major’ metals such as copper, tin or nickel. Unsurprisingly, tantalum’s public profile is relatively low and little understood by most people. ut this misses the fact that tantalum, like niobium, is found throughout society and is at the heart of

Get Price

A NEW SOLVENT EXTRACTION METHOD FOR THE SEPARATION

Separation of trace concentrations of tantalum from niobium and some other heavy metal ions by extraction with N-oxide of trioctylamine. Journal of Radioanalytical Chemistry 1975,27 (1),67-75.

Get Price
Barite Wet Ball Mill Recommended Artsway Grinder Mixer

Related Articles