Results 11 to 20 of about 3,052,906 (300)

The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 2: Neptunium (IV) ions. [PDF]

open access: yes, 2008
Hydroxamic acids are salt free, organic compounds with affinities for cations such as Fe3+, Np4+ and Pu4+, and have been identified as suitable reagents for the control of Pu and Np in advanced nuclear fuel reprocessing. The results of a UV-visible, near-
Boxall, C.   +3 more
core   +5 more sources

The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 1: Ferric ions. [PDF]

open access: yes, 2007
Hydroxamic acids (XHAs) are organic compounds with affinities for cations such as Fe3+, Np4+ and Pu4+ and have been identified as useful reagents in nuclear fuel reprocessing. Acid catalyzed hydrolysis of free XHAs is well known and may impact negatively
Boxall, C.   +2 more
core   +4 more sources

Response Surface Optimization of Dilute Sulfuric Acid Pretreatment of Switchgrass (Panicum virgatum L.) for Fermentable Sugars Production

open access: yesChemical Engineering Transactions, 2016
Pretreatment of lignocellulosic materials to disrupt their recalcitrant structures is a crucial step on second generation biofuel production. In this study, response surface methodology (RSM) was used to investigate the effects of dilute sulfuric acid ...
A.I. Paniagua   +4 more
doaj   +1 more source

Reviving the Acid Hydrolysis Process of Lignocellulosic Material in Biorefinery

open access: yesBioResources, 2014
The acid hydrolysis of lignocellulosic material (LM) is one of the most widely studied and important subprocess in the LM biorefinery. After acid hydrolysis, LM can be converted to various biofuels, biochemicals, and biomaterials through chemical or ...
Rui Chen   +5 more
doaj   +1 more source

Biomass hydrolysis with phosphotungstic acid

open access: yesCatalysis Communications, 2021
In this study, the effect of phosphotungstic acid on the biomass hydrolysis was investigated. Hydrolysis experiments were carried out in four different concentration ranges (1–4%) and at two different temperatures (200 and 250 °C) in the batch reactor ...
Bahar Meryemoglu
doaj   +1 more source

Acid Hydrolysis of Casein

open access: yesFoods and Raw Materials, 2014
Protein hydrolysates have a high biological and nutritional value and are widely used in various sectors of the food, medical, and pharmaceutical industries. This article deals with the chemical hydrolysis of the milk protein casein in the presence of hydrochloric or sulfuric acid and reports the hydrolysis parameters minimizing the loss of amino acids.
Kurbanova, Marina   +1 more
openaire   +4 more sources

Acid Hydrolysis of Erythropoietin.

open access: yesExperimental Biology and Medicine, 1958
SummaryPurified erythropoietin has been subjected to mild acid hydrolysis. This mucoprotein thus has been further characterized and shown to lose erythropoietic activity upon hydrolytic removal of neuraminic acid.
W A, RAMBACH   +3 more
openaire   +2 more sources

Reaction Kinetics of Concentrated-Acid Hydrolysis for Cellulose and Hemicellulose and Effect of Crystallinity

open access: yesBioResources, 2016
Batch experiments for the hydrolysis of xylan and pure cellulose (Avicel) hydrolysis and the decomposition of xylose and glucose were performed at varying sulfuric acid concentrations in the range of 10 to 50 wt.% and varying temperatures in the range of
Pakkapol Kanchanalai   +3 more
doaj   +1 more source

Strategies for the Removal of Polysaccharides from Biorefinery Lignins: Process Optimization and Techno Economic Evaluation

open access: yesMolecules, 2021
The utilization of biorefinery lignins as a renewable resource for the production of bio-based chemicals and materials remain a challenge because of the high polysaccharide content of this variety of lignins.
Sandra Corderi   +5 more
doaj   +1 more source

Hydrolysis of digoxin by acid

open access: yesJournal of Pharmacy and Pharmacology, 1977
AbstractPredictable hydrolysis of [3H]digoxin-12α occurred in vitro with incubation in HCl or gastric juice. Hydrolysis varied with pH, time, temperature and agitation. Digoxin, the bis- and mono-digitoxosides of digoxigenin and digoxigenin were separated by silica gel thin-layer chromatography using chloroform-ethyl acetate-glacial acetic acid (25:25 ...
M H, Gault   +3 more
openaire   +2 more sources

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