Microporous crystalline Mo–V mixed oxides for selective oxidations

2016 ◽  
Vol 6 (3) ◽  
pp. 617-629 ◽  
Author(s):  
Satoshi Ishikawa ◽  
Wataru Ueda
Keyword(s):  
Acrylic Acid ◽  
Mixed Oxides ◽  
Oxidation Catalysts ◽  
Recent Developments ◽  
New Type ◽  
Ethane To Ethene

Recent developments of crystalline Mo3VOx catalysts (MoVO), a new type of oxidation catalysts for selective oxidations of ethane to ethene and of acrolein to acrylic acid, are reviewed.

Microanalysis with Ultrasoft X-Radiations*

1961 ◽  
Vol 5 ◽  
pp. 285-305 ◽  
Author(s):  
Burton L. Henke
Keyword(s):  
Preliminary Report ◽  
Auger Electron ◽  
Low Energy ◽  
Diffraction Reflection ◽  
X Rays ◽  
Electron Spectrometer ◽  
Recent Developments ◽  
New Type ◽  
Low Energy Electron ◽  
A Current

AbstractThe diffraction, reflection, absorption, fluorescence, and the electronic emission that results from the interaction with ultrasoft X-rays (λ > 10 A) are presented as practical bases for microanalysis. Recent developments on sources and detectors for the ultrasoft X-radiations are described. A preliminary report on a current investigation on low-energy photo-Auger electron analysis and on a new type of low-energy electron spectrometer is also presented.

Synthesis and Evaluation of Sulfonated Humic Acid-Acrylic Acid Graft Copolymer Applied as Dispersant in Coal-Water Slurry

2012 ◽  
Vol 581-582 ◽  
pp. 334-337
Author(s):  
Jun Guo Li ◽  
Guang Hua Zhang ◽  
Long Liu ◽  
Fang Zhao
Keyword(s):  
Humic Acid ◽  
Acrylic Acid ◽  
Graft Copolymer ◽  
Water Slurry ◽  
Coal Water Slurry ◽  
New Type ◽  
Rate Behavior ◽  
Formulation Stability ◽  
Low Dosage ◽  
Highly Loaded

A new type of graft copolymer, sulfonated humic acid-acrylic acid resin (SHA), was synthesized and developed as dispersant for highly-loaded coal water slurry (CWS) from Chinese Binchang coal. In this study, The formulation, stability and rheology of the slurry with SHA were investigated. The experimental results show that SHA can reduce effectively CWS viscosity at low dosage, and that the CWS with SHA has excellent stability within 48 h and exhibits shear-thinning apparent viscosity/shear rate behavior. Based on the above, SHA is a promising dispersant for highly-loaded CWS in the practical use in industry.

Study on the Synthesis, Properties and Characterization of EPEG Slump Retaining Typed Polycarboxylate Superplasticizer

2022 ◽  
Vol 905 ◽  
pp. 325-330
Author(s):  
Yun Hui Fang ◽  
Yu Liang Ke ◽  
Hua Zhen Lai ◽  
Zhao Peng Wang ◽  
Li Na Zhong ◽  
...  
Keyword(s):  
Free Radical ◽  
Double Bond ◽  
Acrylic Acid ◽  
Vinyl Ether ◽  
Conversion Rate ◽  
Polycarboxylate Superplasticizer ◽  
Properties And Characterization ◽  
Synthesis Properties ◽  
New Type

The ethyl glycol vinyl ether polyoxyethylene ether (EPEG) is a new type of macromonomer to synthesize polycarboxylate superplasticizer (PCE), which has higher reactivity due to the unsaturated double bond and easily to polymerization. The EPEG slump retaining typed PCE can be synthesized by free radical polymerization though EPEG, acrylic acid and hydroxyethyl acrylate (HEA). The HEA had the greatest influence on slump retaining performance. High polymerization conversion rate of EPEG typed PCE was beneficial to improve the concrete performance.

scholarly journals Heterogeneously catalysed partial oxidation of acrolein to acrylic acid—structure, function and dynamics of the V–Mo–W mixed oxides

2007 ◽  
Vol 9 (27) ◽  
pp. 3577-3589 ◽  
Author(s):  
Philip Kampe ◽  
Lars Giebeler ◽  
Dominik Samuelis ◽  
Jan Kunert ◽  
Alfons Drochner ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Structure Function ◽  
Partial Oxidation ◽  
Mixed Oxides ◽  
Acid Structure

Crystalline Mo-V–W-mixed Oxide with Orthorhombic and Trigonal Structures as Highly Efficient Oxidation Catalysts of Acrolein to Acrylic Acid

2014 ◽  
Vol 57 (14-16) ◽  
pp. 1163-1170 ◽  
Author(s):  
Chuntian Qiu ◽  
Chen Chen ◽  
Satoshi Ishikawa ◽  
Toru Murayama ◽  
Wataru Ueda
Keyword(s):  
Acrylic Acid ◽  
Mixed Oxide ◽  
Oxidation Catalysts ◽  
Highly Efficient

Recent advances in the field of light-driven water oxidation catalyzed by transition-metal substituted polyoxometalates

2018 ◽  
Vol 47 (25) ◽  
pp. 8180-8188 ◽  
Author(s):  
Qing Han ◽  
Yong Ding
Keyword(s):  
Transition Metal ◽  
Water Oxidation ◽  
Oxidation Catalysts ◽  
Recent Advances ◽  
Recent Developments

A brief review on recent developments in the field of TM-substituted POM water oxidation catalysts was systematically presented, providing researchers valuable guidance for further discovery and improvements in efficient and robust TSPWOCs in future.

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