Results 11 to 20 of about 13,664 (266)

Recovery of Barium Ions from a Barium Residue in Guizhou by Hydrochloric Acid Leaching

open access: yesKuangchan zonghe liyong, 2023
A large amount of barium slag accumulation will cause great harm to the environment. The use of hydrochloric acid leaching for barium residue can effectively recover the residual soluble barium salt in the barium residue and greatly reduce the harm of ...
Dewei Li   +4 more
doaj   +1 more source

Nano-AgCu Alloy on Wood Surface for Mold Resistance

open access: yesNanomaterials, 2022
The mold infection of wood reduces the quality of its surface and potentially endangers human health. One category of the most popular mold inhibitors on the market is water-soluble fungicides.
Yanran Qi   +7 more
doaj   +1 more source

Selective Pre-leaching of Tellurium From Telluride-Type Gold Concentrate

open access: yesFrontiers in Chemistry, 2021
With a telluride-type gold ore flotation concentrate as the research object, the Na2S + NaOH collaborative leaching process was applied to selectively separate tellurium before the cyanide leaching of gold and silver.
Wei Yang   +9 more
doaj   +1 more source

Study on Influencing Factors of Leaching Process of High-iron Zinc Calcine

open access: yesKuangchan zonghe liyong, 2023
Zinc calcine with high Fe content is leached with a large amount of Fe at the same time, which affects the subsequent operation. In order to solve this problem, the high iron zinc calcine of a company in Shaanxi was taken as the research object.
Zhiyu Wang, Jialin Guo, Yue He
doaj   +1 more source

Effects of sodium roasting on the leaching rate of boron-bearing tailings and its mechanism analysis [PDF]

open access: yesRoyal Society Open Science, 2018
The study reported was intended to improve the leaching rate of boron-bearing tailings, using a method of sodium roasting that uses boron-bearing tailings as the raw material and Na2CO3 as the sodium agent.
Chengxi Zou   +6 more
doaj   +1 more source

Zn Extraction from Zinc-Containing Sludge Using Ultrasonic Treatment Leaching with ChCl-MA DES

open access: yesMetals, 2023
The recovery of zinc from metallurgical dust sludge is a crucial component of using solid waste as a resource in the metallurgical process, and deep eutectic solvent–ultrasonic synergistic enhanced leaching is an efficient method of doing so with ...
Fusheng Niu   +4 more
doaj   +1 more source

Evaluation of the impact of various agricultural practices on nitrate leaching under the root zone of potato and sugar beet using the STICS soil–crop model [PDF]

open access: yes, 2008
The quaternary aquifer of Vitoria-Gasteiz (Basque Country, Northern Spain) is characterised by a shallow water table mainly fed by drainage water, and thus constitutes a vulnerable zone in regards to nitrate pollution. Field studies were performed with a
Antigüedad, Iñaki   +9 more
core   +1 more source

Method and timing of grassland renovation affects herbage yield, nitrate leaching, and nitrous oxide emission in intensively managed grasslands [PDF]

open access: yes, 2009
Managed grasslands are occasionally ploughed up and reseeded in order to maintain or increase the sward productivity. It has been reported that this renovation of grassland is associated with a flush of soil organic nitrogen (N) mineralization and with a
P. J. Kuikman   +15 more
core   +1 more source

Experimental Study on the Dressing and Smelting of a Pyrrhotite-bearing Primary Gold Ore [PDF]

open access: yesE3S Web of Conferences, 2023
The content of pyrrhotite in a primary gold mine containing pyrrhotite is 0.68%. In the process of alkaline leaching pretreatment, there are problems such as large ore quantity and high alkali consumption.
Chen Yanbo, Wang Junjie
doaj   +1 more source

Temperature Effect on Plutonium Leach Rate of Nuclear Waste Glass [PDF]

open access: yesJournal of Nuclear Science and Technology, 1989
The two kinds of nuclear waste glass with similar composition, a 238Pu-doped and non-radioactive waste glass, were leached under the ISO-test conditions at temperature between 23 and 90°C. An activation energy of 22±10 kJ/mole was obtained from the initial leach rates of Pu, which was much lower than the 78±9 kJ/mole obtained from those of Si, Na, Sr ...
BANBA, Tsunetaka   +2 more
openaire   +1 more source

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