Partial Oxidation of 4-tert-Butyltoluene Catalyzed by Homogeneous Cobalt and Cerium Acetate Catalysts in the Br−/H2O2/Acetic Acid System: Insights into Selectivity and Mechanism

2007 ◽  
Vol 13 (28) ◽  
pp. 8037-8044 ◽  
Author(s):  
Leon G. A. van de Water ◽  
Arati Kaza ◽  
James K. Beattie ◽  
Anthony F. Masters ◽  
Thomas Maschmeyer
Keyword(s):  
Acetic Acid ◽  
Partial Oxidation ◽  
Acid System

scholarly journals Statistically Guided Synthesis of MoV-Based Mixed-Oxide Catalysts for Ethane Partial Oxidation

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 370
Author(s):  
Juan Jimenez ◽  
Kathleen Mingle ◽  
Teeraya Bureerug ◽  
Cun Wen ◽  
Jochen Lauterbach
Keyword(s):  
Acetic Acid ◽  
Partial Oxidation ◽  
Mixed Oxide ◽  
Structural Integrity ◽  
Product Distribution ◽  
Catalytic Performance ◽  
Oxide Catalysts ◽  
Acid Yield ◽  
Mixed Oxide Catalysts ◽  
Catalyst Composition

The catalytic performance of Mo8V2Nb1-based mixed-oxide catalysts for ethane partial oxidation is highly sensitive to the doping of elements with redox and acid functionality. Specifically, control over product distributions to ethylene and acetic acid can be afforded via the specific pairing of redox elements (Pd, Ni, Ti) and acid elements (K, Cs, Te) and the levels at which these elements are doped. The redox element, acid element, redox/acid ratio, and dopant/host ratio were investigated using a three-level, four-factor factorial screening design to establish relationships between catalyst composition, structure, and product distribution for ethane partial oxidation. Results show that the balance between redox and acid functionality and overall dopant level is important for maximizing the formation of each product while maintaining the structural integrity of the host metal oxide. Overall, ethylene yield was maximized for a Mo8V2Nb1Ni0.0025Te0.5 composition, while acetic acid yield was maximized for a Mo8V2Nb1Ti0.005Te1 catalyst.

Catalytic Partial Oxidation of Ethane to Acetic Acid over Mo1V0.25Nb0.12Pd0.0005Ox

2002 ◽  
Vol 205 (1) ◽  
pp. 32-43 ◽  
Author(s):  
David Linke ◽  
Dorit Wolf ◽  
Manfred Baerns ◽  
Sabine Zeyβ ◽  
Uwe Dingerdissen
Keyword(s):  
Acetic Acid ◽  
Partial Oxidation ◽  
Catalytic Partial Oxidation

Direct Synthesis of 6H-Chromeno[3,4-b]quinolin-6-ol Derivatives from Substituted 3-Nitro-2H-chromenes and 2-Nitrobenzaldehydes Mediated by Fe/AcOH System

Synthesis ◽  
2017 ◽  
Vol 50 (06) ◽  
pp. 1350-1358 ◽  
Author(s):  
Cunde Wang ◽  
Xushun Qing ◽  
Ting Wang ◽  
Chenlu Dai ◽  
Zhenjie Su
Keyword(s):  
Acetic Acid ◽  
Nucleophilic Addition ◽  
Aldol Condensation ◽  
Direct Synthesis ◽  
Reductive Cyclization ◽  
Quinoline Derivatives ◽  
Acid System ◽  
X Ray ◽  
X Ray Crystallography ◽  
Sequential Reduction

An efficient iron/acetic acid system-mediated reductive cyclization reaction of substituted 2-aryl-3-nitro-2H-chromenes with substituted 2-nitrobenzaldehydes for the synthesis of 6-aryl-6H-chromeno[3,4-b]quinolines was developed. This reaction involves the sequential reduction, hydrolysis, aldol condensation, intramolecular addition, and the nucleophilic addition of substituted 2-aryl-3-nitro-2H-chromenes with substituted 2-nitrobenzaldehydes to give the corresponding 6H-chromeno[3,4-b]quinolines. This transformation provides a straightforward synthetic protocol for constructing substituted 6H-chromeno[3,4-b]quinoline derivatives. The structures of three typical products were confirmed by X-ray crystallography.

Behavior of Acid-Base Indicators in Acetic Acid System

1956 ◽  
Vol 28 (7) ◽  
pp. 1120-1130 ◽  
Author(s):  
Takeru. Higuchi ◽  
J. A. Feldman ◽  
C. R. Rehm
Keyword(s):  
Acetic Acid ◽  
Acid System ◽  
Acid Base

Improved D-Glucosamine Hydrochloride Preparation from Waste Hypha Residue of Citric Acid

2013 ◽  
Vol 864-867 ◽  
pp. 545-548
Author(s):  
Xiao Ling Sun ◽  
Zhi Tan ◽  
Ying Jiang ◽  
Min Yue Xu
Keyword(s):  
Acetic Acid ◽  
Statistical Analysis ◽  
Citric Acid ◽  
Acid System ◽  
Optimal Conditions ◽  
Orthogonal Array Design ◽  
Experimental Conditions ◽  
Array Design ◽  
Glucosamine Hydrochloride ◽  
Hcl Concentration

The improved preparation of D-glucosamine hydrochloride from waste hypha residue of citric acid was reported. The use of HCl and acetic acid system as an acid hydrolysis reagent led to a significant increase in the yield of D-Glucosamine hydrochloride (GluHCl). Other effects of various factors on the preparation of GluHCl were also investigated: temperature of acidification, HCl concentration, and reaction time. The experimental conditions were optimized by a L9 (34) orthogonal array design (OAD) with four factors at three levels using statistical analysis. Under optimal conditions, the yield of GluHCl reached 5.2%.

Mechanistic insights into the partial oxidation of acetic acid by O2 at the dual perimeter sites of a Au/TiO2 catalyst

2013 ◽  
Vol 162 ◽  
pp. 247 ◽  
Author(s):  
Isabel Xiaoye Green ◽  
Wenjie Tang ◽  
Matthew Neurock ◽  
John T. Yates
Keyword(s):  
Acetic Acid ◽  
Partial Oxidation ◽  
Tio2 Catalyst

scholarly journals Reaction kinetics of ethane partial oxidation to acetic acid

2018 ◽  
Vol 8 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Sulaiman I. Al-Mayman ◽  
Moustafa A. Soliman ◽  
Abdulrahman S. Al-Awadi ◽  
Yousef S. Al-Zeghayer
Keyword(s):  
Acetic Acid ◽  
Reaction Kinetics ◽  
Partial Oxidation ◽  
Kinetics Of
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