Zobrazeno 1 - 7
of 7
pro vyhledávání: '"L. N. Adeeva"'
Publikováno v:
Izvestiya Vuzov Tsvetnaya Metallurgiya (Universities Proceedings Non-Ferrous Metallurgy). 1:28-35
It is proposed to use a spent cracking catalyst of petroleum hydrocarbons containing 1 wt.% of rare earth element (REE) oxides as an alternative REE feed source. The study covers the process of removing silicon in the form of ammonium hexafluorosilic
Publikováno v:
INTERNATIONAL CONFERENCE ON SCIENCE AND APPLIED SCIENCE (ICSAS2020).
This paper presents a method for extracting rare earth element (REE) concentrate from spent catalysts of fluid catalytic cracking (SFCC) using the method of sulfuric acid leaching of a mixture of SFCC and NH4F. The optimal conditions for obtaining th
Autor:
D. S. Platonova, L. N. Adeeva
Publikováno v:
Open Engineering, Vol 8, Iss 1, Pp 176-181 (2018)
A sorbent was synthesized by thermal processing of sapropel residue after the extraction of humic acids, and subsequently modified with polyhexamethyleneguanidine and humic acids pre-isolated from sapropel. The humic sorbent transformations have been
Publikováno v:
NANOSCIENCE AND NANOTECHNOLOGY: NANO-SciTech.
One of the wastes from oil refining industry – the spent cracking catalyst (SCC) – contains 1-2 % of rare earth elements (REE), which makes it a promising source for REE recovery. The optimal conditions for the recovery of lanthanum compounds fro
Autor:
L. N. Adeeva, P. A. Pyatanova
Publikováno v:
AIP Conference Proceedings.
It was elaborated the ability of the sorbent produced by thermic treatment of cedar nut shell to destruct model and real first kind (direct) emulsions in static and dynamic conditions. In static conditions optimal ratio sorbent-emulsion with the orig
Autor:
L. N. Adeeva, D. S. Platonova
Publikováno v:
AIP Conference Proceedings.
A sorbent by thermal processing sapropel residue, after the extraction of humic acids, subsequent modification with polyhexamethyleneguanidine and pre-isolated humic acids was synthesized. The transformations of the carbon-mineral humic sorbent at a
Publikováno v:
Journal of Applied Spectroscopy. 76:257-259
Quantitative atomic emission spectral analysis was used to study the rare-earth content in sapropel and the rare-earth distribution over the isolated fractions. The conditions for determination of Ce, Y, and La (analytical lines, arc discharge curren