Results 51 to 60 of about 412,588 (342)

Enhancing the leaching effect of an ion-absorbed rare earth ore by ameliorating the seepage effect with sodium dodecyl sulfate surfactant

open access: yesInternational Journal of Mining Science and Technology, 2021
Ameliorating the problem of low leaching efficiency, long leaching period, and high agent consumption should be studied to efficiently exploit ion-absorbed rare earth ore resources.
Yongbing Zhang   +5 more
doaj   +1 more source

Removal of Cyanides from Gadung (Dioscorea hispida Dennst.) Tuber Chips using Leaching and Steaming Techniques [PDF]

open access: yes, 2011
Gadung (Dioscorea hispida Dennst.) has been considered as one of staple foods in Indonesia. However, its high cyanides content has limited its utilisation for commercial food production. This work is aimed to investigate the removal of cyanides content
Budiyati, C.S.   +2 more
core  

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Technology for Aiding the Cyanide Leaching of Gold Ores

open access: yesSeparations
Cyanide leaching technology was studied for low-grade oxidized gold ores in Guangxi Province. The gold grade of the raw ores was 1.32 g/t. The gold leaching rate was 90.91% under the optimal conditions for the following conventional leaching process ...
Jiahong Han   +4 more
doaj   +1 more source

Comprehensive Utilization of Sulfur Separation Tailings of High Sulfur Rare Metal Complex Ore in Coal Measure

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of metallurgical engineering. Comprehensive utilization of sulfur separation tailings from a coal measure high sulfur rare metal complex ore in Chongqing area was studied, which provided a feasible basis for the recovery of ...
Xueru Feng, Shuping Liu, Chao Li
doaj   +1 more source

Residual capability of alkali binding by hydrated pozzolanic cements in long-service concrete structures [PDF]

open access: yes, 2018
An experimental procedure was developed and applied to cement pastes made with two different pozzolanic cements (CEM IV/B (P) and CEM IV/B (V)) in order to ascertain the existence of a residual capability of alkali binding by long-term hydrated ...
Antonio Evangelista Paolini, And   +2 more
core   +2 more sources

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

open access: yesAdvanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni   +10 more
wiley   +1 more source

Bromic acid-thiourea synergistic leaching of sulfide gold ore

open access: yesGreen Processing and Synthesis
Bromate–thiourea coordinated leaching of gold sulfide ore for gold sulfide ore as leaching object. The effects of leaching reagent, stirring speed, and leaching time on gold leaching were investigated in this article.
Qiang Zhang   +2 more
doaj   +1 more source

Effect of clay amendments on nitrogen leaching and forms in a sandy soil [PDF]

open access: yes, 2010
Nitrogen (N) leaching in sandy soil decreases fertiliser use efficiency and may depress plant production. Application of high cation exchange capacity (CEC) materials (e.g.
Bell, R.W.   +2 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

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