Results 181 to 190 of about 382,053 (359)

Reaction phenomena of iron oxide leaching in an evaporative acid bake reactor

open access: yes, 2012
Includes abstract.Includes bibliographical references.Namakwa Sands is a heavy mineral mining and beneficiation business within Tronox, and produces two major products, zircon (zr02.Si02 99.9%) and rutile (Ti02 99.9%) at a combined annual rate of 140kt ...
Ledgerwood, Jonathan Patrick
core  

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

open access: yesAdvanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding   +6 more
wiley   +1 more source

Process and Kinetics of V and W Leaching from Spent SCR Catalysts via Pressure Alkali Leaching. [PDF]

open access: yesACS Omega
Shuting W   +7 more
europepmc   +1 more source

Farm level cost of reducing nitrate leaching by economic instruments in Croatian farming systems

open access: yes
Croatian farming systems have become more intensive in recent years. There is some evidence of rising NO3-N-levels in ground water. The aim of the paper is to find pos-sible ways of preventing NO3-levels to rise in Croatian farming systems and their im ...
Franic, Ramona   +3 more
core  

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

open access: yesAdvanced Science, EarlyView.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu   +4 more
wiley   +1 more source

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

open access: yesAdvanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li   +9 more
wiley   +1 more source

MARGINAL ABATEMENT COSTS FOR REDUCING LEACHING OF NITRATES IN CROATIAN FARMING SYSTEMS

open access: yes
The aim of this paper is to identify optional ways of preventing NO3-levels from rising within Croatian farming systems, and the implications from the viewpoint of the manager.
Franic, Ramona   +3 more
core  

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