Results 31 to 40 of about 56,036 (238)
Kinetics Modeling of Glycerol Carbonate Synthesis from Glycerol and Urea over Amberlyst-15 Catalyst
Indonesian Journal of Chemistry, 2019 Synthesize of glycerol carbonate from glycerol and urea is an attractive path as glycerol carbonate has a large potential as a green solvent. The aim of the present study was to develop a kinetic model of glycerol carbonate synthesis with amberlyst-15 ...
Hary Sulistyo +3 more
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Synthesis of glycerol carbonate from glycerol and dimethyl carbonate in basic ionic liquids
Pure and Applied Chemistry, 2011 Glycerol carbonate is a key multifunctional compound used as solvent, additive, and building block in alternative chlorine-free processes. Here, we report the synthesis of glycerol carbonate from renewable materials (glycerol and dimethyl carbonate, DMC) using basic ionic liquids (ILs) as catalysts.
CHIAPPE, CINZIA, Rajamani S.
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Journal of CO2 UtilizationGlycerol can be utilised as a renewable feedstock in several chemical reactions, including carbonation, carbonylation, transesterification, and oxidation.
Patcharaporn Inrirai +4 more
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Zhongguo youzhi, 2023 针对由甘油制备碳酸甘油酯的酯交换法中催化剂制备方法复杂、活性组分易流失等问题，采用一锅法制备了Li掺杂CeO2固体碱催化剂。对催化剂进行了X射线衍射(XRD)、扫描电镜（SEM）、透射电镜（TEM）、BET、X射线光电子能谱(XPS)、CO2程序升温脱附(CO2-TPD)等表征。以甘油转化率和碳酸甘油酯产率为指标，对催化剂进行了筛选，并采用单因素实验对甘油酯交换合成碳酸甘油酯的工艺条件进行了优化，同时考察了催化剂的重复使用性能。结果表明:Li与CeO2之间能够产生协同作用 ...
陈一峰，范明明，冷炎，蒋平平，张萍波 CHEN Yifeng, FAN Mingming, LENG Yan, JIANG Pingping, ZHANG Pingbo
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Oléagineux, Corps gras, Lipides, 2004 In this study two major strategy of transformation of the vegetables substrate are exposed. The first approach is related to the study of the catalytic heterocyclisation of natural glycerin in the glycerol carbonate.
Mouloungui Zéphirin
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Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
A Rapid and Green Method for the Preparation of Solketal Carbonate from Glycerol
ReactionsGlycerol is a biogenic waste that is generated in both the biodiesel and oleo-chemical industries. The value addition of surplus glycerol is of utmost importance for making these industries economically profitable.
Sanjib Kumar Karmee +3 more
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Molecular Oncology, EarlyView.We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober +16 more
wiley +1 more source
Copper-Catalyzed Asymmetric Sulfonylative Desymmetrization of Glycerol
Molecules, 2022 Glycerol is the main side product in the biodiesel manufacturing process, and the development of glycerol valorization methods would indirectly contribute the sustainable biodiesel production and decarbonization.
Kosuke Yamamoto +5 more
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Esters of oligo-(glycerol carbonate-glycerol): New biobased oligomeric surfactants [PDF]
Journal of Colloid and Interface Science, 2017 Glycerol carbonate is one of the most potentially multifunction glycerol-derived compounds. Glycerol is an important by-product of the oleochemical industry. The oligomerization of glycerol carbonate, assisted by the glycerol, results in the production of polyhydroxylated oligomers rich in linear carbonate groups. The polar moieties of these oligomers (
Holmière, Sébastien +3 more
openaire +4 more sources