𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of the ash yield and the mineral matter content of brown coals by density measurements

✍ Scribed by Edward Chruściel; Wit Jagusztyn; Andrzej Kreft; Andrzej Lenda; Wojciech Przybylowicz; Jan Woźniak

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
149 KB
Volume
62
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

✦ Synopsis

A method of measuring the density of bed-moist brown coals based on their plastic properties is described and the feasibility of using the method for determination of the ash yield of the coal is evaluated.

📜 SIMILAR VOLUMES

Determination of the mineral-matter cont
Determination of the mineral-matter contents of coals by low-temperature ashing
✍ Robert N. Miller; Richard F. Yarzab; Peter H. Given 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 832 KB

A new method is described for determining the mineral-matter content of coals, based on low-temperature ashing in an oxygen plasma. Unwanted side-reactions can occur during ashing, particularly oxidation of pyrite to haematite and fixation of organic sulphur as sulphate. These effects cannot be tota

Correlation between the content of volat
Correlation between the content of volatile matter and mineral matter in hard coals
✍ Adolf Scholz 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 405 KB

If coal is heated to 9OO"C, in the absence of air the organic coal substance and the associated mineral matter are decomposed. The analytically determined volatile-matter yield includes the volatile decomposition products of both the coal substance and the minerals. The correlation between mineral m

Oxygen in coal ash: a simplified approac
Oxygen in coal ash: a simplified approach to the analysis of ash and mineral matter in coal
✍ Alexis Volborth; George E. Miller; Claudia K. Garner; Paul A. Jerabek 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 643 KB

Oxygen was determined accurately in eight U.S. Bureau of Mines coal ash samples A, B, D, F, G, I, and J, NBS coal fly ash 1633 reference material, and two low-temperature ashes (LTA) from Illinois State Geological Survey. The method uses fast-neutron activation (FNA) analysis employing a dual counti

Determination of the carbon content in c
Determination of the carbon content in coal and ash by XRF
✍ J. Parus; J. Kierzek; B. Małżewska-Bućko 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 69 KB 👁 2 views

Wavelength-dispersive x-ray fluorescence (WDXRF) was used for the determination of carbon in coal and ash samples. A rhodium side-window tube was used for C Ka excitation and a synthetic multilayer crystal (2d = 12.2 nm) for excited radiation analysis. The samples, undiluted or diluted with boric ac