Zobrazeno 1 - 10
of 15
pro vyhledávání: '"ZENG Jiang-ping"'
Autor:
WANG Li-qiang, WANG Jia-song, WEI Shuang, ZHENG Zhi-kang, WU Liang-ying, ZHANG Nan, ZENG Jiang-ping
Publikováno v:
Yankuang ceshi, Vol 40, Iss 5, Pp 688-697 (2021)
BACKGROUND Tungsten molybdenum ores are strategic mineral resources. China is a large producer and consumer of tungsten and molybdenum ore. Accurate and efficient analysis of tungsten and molybdenum and its associated beneficial and harmful elements
Externí odkaz:
https://doaj.org/article/4fa389d0bb0241a08676631706854a5f
Autor:
WANG Li-qiang, WANG Jia-song, XU Tie-min, WU Liang-ying, ZENG Jiang-ping, ZHENG Zhi-kang, WEI Shuang
Publikováno v:
Yankuang ceshi, Vol 39, Iss 3, Pp 391-397 (2020)
BACKGROUND Sepiolite is a widely used fibrous magnesium-rich silicate clay mineral. Sepiolite is mainly composed of silicon and magnesium, with minor aluminum, potassium, sodium and other impurities. Determination of the major element of sepiolite us
Externí odkaz:
https://doaj.org/article/d0924c9cfe394c66bf17ac5db92274f8
Autor:
ZHENG Zhi-kang, ZENG Jiang-ping, WANG Jia-song, QIAO Zhao-yu, LIU Yi-bo, WU Liang-ying, WANG Li-qiang
Publikováno v:
Yankuang ceshi, Vol 39, Iss 2, Pp 208-215 (2020)
BACKGROUND The dissolution of antimony ore by aqua regia is often incomplete and antimony is easy to hydrolyze in the process of extraction, which leads to inaccurate results. Although atomic fluorescence spectrometry has been widely used in the dete
Externí odkaz:
https://doaj.org/article/3f2391cd09b64ebeae0100eded826a23
Publikováno v:
Yankuang ceshi, Vol 39, Iss 1, Pp 68-76 (2020)
BACKGROUND The sampling weight can be as low as milligram level when the contents of rare earth elements in rock and soil samples are determined by inductively coupled plasma-mass spectrometry (ICP-MS). However, the size of 200 mesh samples requires
Externí odkaz:
https://doaj.org/article/4ea50745e60c47e897e7dfb39f25fbe4
Publikováno v:
Yankuang ceshi, Vol 38, Iss 1, Pp 71-76 (2019)
BACKGROUND The fluorine content in lithium mica is very high (1.36% to 8.71%), and the leaching rate of lithium during roasting lithium mica minerals decreases gradually with the increase of fluorine content. With increased defluorination of lithium
Externí odkaz:
https://doaj.org/article/deb8108688874764a991ac652daa0188
Publikováno v:
Yankuang ceshi, Vol 34, Iss 2, Pp 229-233 (2015)
Potassium dichromate titration (othophenanthroline spectrophotometry) with ammonium chloride extraction is a reliable technique to determine the high-content iron carbonate (7.5%-80%) in samples. However, the traditional methods have the disadvantage
Externí odkaz:
https://doaj.org/article/a199f51f55f24d198707189e1867e130
Publikováno v:
Yankuang ceshi, Vol 32, Iss 6, Pp 915-919 (2013)
Chromite analysis is dominated by chemical analysis, which is a wel-established but complicated procedure. Chromite can also be analysed by X-ray Fluorescence Spectrometry (XRF), however, a high-dilution fusion is not conducive to low content element
Externí odkaz:
https://doaj.org/article/c0cab3a4e5ec400fb28c7556cecbe8c2
Akademický článek
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Publikováno v:
Advanced Materials Research; August 2014, Vol. 1015 Issue: 1 p401-404, 4p
Publikováno v:
Applied Mechanics and Materials; August 2014, Vol. 602 Issue: 1 p2662-2665, 4p