Results 21 to 30 of about 26,314 (223)

Improved Process for Separating TiO2 from an Oxalic-Acid Hydrothermal Leachate of Vanadium Slag

open access: yesMetals, 2022
In the present study, a process of separating high-quality TiO2 from an oxalic-acid leachate of vanadium slag was proposed. It consists of two steps; oxalic acid was firstly recovered from the leachate by the cooling-crystallization method, and ...
Qingdong Miao   +5 more
doaj   +1 more source

Rock phosphate solubilization by abiotic and fungal‐produced oxalic acid: reaction parameters and bioleaching potential

open access: yesMicrobial Biotechnology, 2022
Summary Oxalic acid‐producing fungi play an important role in biogeochemical transformations of rocks and minerals and possess biotechnological potential for extraction of valuable elements from primary or waste ores and other solid matrices.
Gilberto de Oliveira Mendes   +3 more
doaj   +1 more source

A new approach to recycle oxalic acid during lignocellulose pretreatment for xylose production

open access: yesBiotechnology for Biofuels, 2018
Background Dilute oxalic acid pretreatment has drawn much attention because it could selectively hydrolyse the hemicellulose fraction during lignocellulose pretreatment. However, there are few studies focusing on the recovery of oxalic acid.
Banggui Cheng   +6 more
doaj   +1 more source

Effect of concentrated NaCl on catalytic wet oxidation (CWO) of short chain carboxylic acids

open access: yesCatalysis Communications, 2022
The effect of concentrated NaCl (200 g L−1) on CWO of oxalic acid and acetic acid over MnCeOx was investigated at 110 °C and 0.5 MPa O2 to explore the potential of using CWO for shale gas wastewater treatment.
Xiaoxia Ou   +5 more
doaj   +1 more source

Oxalic Acid-Induced Photodissolution of Ferrihydrite and the Fate of Loaded As(V): Kinetics and Mechanism

open access: yesNanomaterials, 2019
The fate of arsenic in the water environment is of great concern. Here, the influences of oxalic acid and UV light illumination on the dissolution of naked ferrihydrite (Fhy), Fhy loaded with As(V) [Fhy*-As(V)], as well as the fate of As(V) at pH 3.0 ...
Hai-Tao Ren   +5 more
doaj   +1 more source

Hygroscopic behavior of multicomponent organic aerosols and their internal mixtures with ammonium sulfate [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Water-soluble organic compounds (WSOCs) are important components of organics in the atmospheric fine particulate matter. Although WSOCs play an important role in the hygroscopicity of aerosols, knowledge on the water uptake behavior of internally ...
B. Jing   +9 more
doaj   +1 more source

Transcriptome Analysis Revealed the Mechanism of Inhibition of Saprophytic Growth of Sparassis latifolia by Excessive Oxalic Acid

open access: yesCells, 2022
Sparassis latifolia, a highly valued edible fungus, is a crucial medicinal and food resource owing to its rich active ingredients and pharmacological effects.
Zhiheng Qiu   +7 more
doaj   +1 more source

Selective dissolution of vanadium(V) from spent petroleum catalysts by oxalic acid solution [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2020
The spent petroleum catalyst contains a significant amount of vanadium and its recovery is essential. Oxalic acid has good metal selectivity due to its complex properties.
Le M.N., Lee M.S.
doaj   +1 more source

Electrochemical Properties of LiMn2O4 Prepared by Solid-State Combustion Synthesis Using Oxalic Acid as a Fuel

open access: yesInternational Journal of Electrochemical Science, 2015
Spinel LiMn2O4 of the Fd3m space group was prepared via solid-state combustion synthesis using oxalic acid as a fuel. Its phase structure and microstructure were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy ...
Cancan Peng   +6 more
doaj   +1 more source

Oxalic acid has an additional, detoxifying function in Sclerotinia sclerotiorum pathogenesis. [PDF]

open access: yesPLoS ONE, 2013
The mechanism of the diseases caused by the necrotroph plant pathogen Sclerotinia sclerotiorum is not well understood. To investigate the role of oxalic acid during infection high resolution, light-, scanning-, transmission electron microscopy and ...
Annerose Heller, Tanja Witt-Geiges
doaj   +1 more source

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