Hydroxycarbonylation of Alkenes with Formic Acid Using Rhodium Iodide complex and Alkylammonium Iodide

2021 ◽  
Author(s):  
Okada Masaki ◽  
Katsuhiko Takeuchi ◽  
Kazuhiro Matsumoto ◽  
Tomoharu Oku ◽  
Jun-Chul Choi
Keyword(s):  
Environmental Impact ◽  
Formic Acid ◽  
Carboxylic Acids ◽  
Reaction System ◽  
Iodide Complex

Hydroxycarbonylation of alkenes using formic acid (HCOOH) is ideal for the synthesis of various carboxylic acids as a means to develop a sustainable reaction system with lower environmental impact. In...

scholarly journals Valorization of secondary feedstocks from the agroindustry by selective catalytic oxidation to formic and acetic acid using the OxFA process

2021 ◽  
Author(s):  
Sebastian Ponce ◽  
Stefanie Wesinger ◽  
Daniela Ona ◽  
Daniela Almeida Streitwieser ◽  
Jakob Albert
Keyword(s):  
Acetic Acid ◽  
Formic Acid ◽  
Reaction System ◽  
Value Added ◽  
Industrial Wastes ◽  
Raw Material ◽  
Gaseous Oxygen ◽  
Water As Solvent ◽  
Selective Catalytic Oxidation ◽  
Major Interest

AbstractThe selective oxidative conversion of seven representative fully characterized biomasses recovered as secondary feedstocks from the agroindustry is reported. The reaction system, known as the “OxFA process,” involves a homogeneous polyoxometalate catalyst (H8PV5Mo7O40), gaseous oxygen, p-toluene sulfonic acid, and water as solvent. It took place at 20 bar and 90 °C and transformed agro-industrial wastes, such as coffee husks, cocoa husks, palm rachis, fiber and nuts, sugarcane bagasse, and rice husks into biogenic formic acid, acetic acid, and CO2 as sole products. Even though all samples were transformed; remarkably, the reaction obtains up to 64, and 55% combined yield of formic and acetic acid for coffee and cocoa husks as raw material within 24 h, respectively. In addition to the role of the catalysts and additive for promoting the reaction, the influence of biomass components (hemicellulose, cellulose and lignin) into biogenic formic acid formation has been also demonstrated. Thus, these results are of major interest for the application of novel oxidation techniques under real recovered biomass for producing value-added products. Graphical abstract

scholarly journals Heterogeneous chemistry of monocarboxylic acids on α-Al<sub>2</sub>O<sub>3</sub> at ambient condition

2010 ◽  
Vol 10 (2) ◽  
pp. 3937-3974 ◽  
Author(s):  
S. R. Tong ◽  
L. Y. Wu ◽  
M. F. Ge ◽  
W. G. Wang ◽  
Z. F. Pu
Keyword(s):  
Acetic Acid ◽  
Formic Acid ◽  
Carboxylic Acids ◽  
Propionic Acid ◽  
Ambient Condition ◽  
Heterogeneous Reactions ◽  
Dust Particles ◽  
Monocarboxylic Acids ◽  
Al2o3 Particles ◽  
Α Al2o3

Abstract. A study of the atmospheric heterogeneous reactions of formic acid, acetic acid, and propionic acid on dust particles (α-Al2O3) was performed at ambient condition by using a diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) reactor. From the analysis of the spectral features, observations of carboxylates formation provide strong evidence for an efficient reactive uptake process. Comparison of the calculated and experimental vibrational frequencies of adsorbed carboxylates establishes the bridging coordinated structures on the surface. The uptake coefficients of formic acid, acetic acid, and propionic acid on α-Al2O3 particles are (2.07±0.26)×10−3, (5.00±0.69)×10−3, and (3.04±0.63)×10−3, respectively (using geometric area). Besides, the effect of various relative humid (RH) on this heterogeneous reactions was studied. The uptake coefficients of monocarboxylic acids on α-Al2O3 particles increase initially (RH<20%) and then decrease with the increased RH (RH>20%) which was due to the effect of water on carboxylic acids solvation, particles surface hydroxylation, and competition on reactive site. On the basis of the results of experimental simulation, the mechanism of heterogeneous reaction of dust with carboxylic acids at ambient condition was discussed. The loss of atmospheric monocarboxylic acids due to reactive uptake on available mineral dust particles can be competitive with homogeneous loss pathways, especially in dusty urban and desertified environments.

scholarly journals Importance of secondary sources in the atmospheric budgets of formic and acetic acids

2010 ◽  
Vol 10 (10) ◽  
pp. 24435-24497 ◽  
Author(s):  
F. Paulot ◽  
D. Wunch ◽  
J. D. Crounse ◽  
G. C. Toon ◽  
D. B. Millet ◽  
...  
Keyword(s):  
Formic Acid ◽  
Carboxylic Acids ◽  
Transport Model ◽  
Negative Temperature ◽  
Photochemical Oxidation ◽  
Secondary Source ◽  
Chemical Transport Model ◽  
Wet And Dry Deposition ◽  
Secondary Sources ◽  
Acetic Acids

Abstract. We present a detailed budget of formic and acetic acids, two of the most abundant trace gases in the atmosphere. Our bottom-up estimate of the global source of formic and acetic acids are ~1200 and ~1400 Gmol/yr, dominated by photochemical oxidation of biogenic volatile organic compounds, in particular isoprene. Their sinks are dominated by wet and dry deposition. We use the GEOS-Chem chemical transport model to evaluate this budget against an extensive suite of measurements from ground, ship and satellite-based Fourier transform spectrometers, as well as from several aircraft campaigns over North America. The model captures the seasonality of formic and acetic acids well but generally underestimates their concentration, particularly in the Northern midlatitudes. We infer that the source of both carboxylic acids may be up to 50% greater than our estimate and report evidence for a long-lived missing secondary source of carboxylic acids that may be associated with the aging of organic aerosols. Vertical profiles of formic acid in the upper troposphere support a negative temperature dependence of the reaction between formic acid and the hydroxyl radical as suggested by several theoretical studies.

scholarly journals Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase

Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 304 ◽  
Author(s):  
Zhibo Zhang ◽  
Bao-hua Xu ◽  
Jianquan Luo ◽  
Nicolas Solms ◽  
Hongyan He ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Dft Calculations ◽  
Formic Acid ◽  
Formate Dehydrogenase ◽  
Enzymatic Reaction ◽  
Reaction System ◽  
Co2 Concentration ◽  
Co2 Conversion ◽  
Low Co2

Efficient CO2 conversion by formate dehydrogenase is limited by the low CO2 concentrations that can be reached in traditional buffers. The use of ionic liquids was proposed as a manner to increase CO2 concentration in the reaction system. It has been found, however, that the required cofactor (NADH) heavily degraded during the enzymatic reaction and that acidity was the main reason. Acidity, indeed, resulted in reduction of the conversion of CO2 into formic acid and contributed to overestimate the amount of formic acid produced when the progression of the reaction was followed by a decrease in NADH absorbance (method N). Stability of NADH and the mechanism of NADH degradation was investigated by UV, NMR and by DFT calculations. It was found that by selecting neutral–basic ionic liquids and by adjusting the concentration of the ionic liquid in the buffer, the concentration of NADH can be maintained in the reaction system with little loss. Conversion of CO2 to methanol in BmimBF4 (67.1%) was more than twice as compared with the conversion attained by the enzymatic reaction in phosphate buffer (24.3%).

Detoxification of Wheat Straw Formic Acid Hydrolysis and Xylitol Production

2011 ◽  
Vol 383-390 ◽  
pp. 5453-5457 ◽  
Author(s):  
Jun Ping Zhuang ◽  
Lu Lin ◽  
Sun Yong ◽  
Chun Sheng Pang
Keyword(s):  
Ion Exchange ◽  
Formic Acid ◽  
Acid Hydrolysis ◽  
Wheat Straw ◽  
Exchange Resin ◽  
Reaction System ◽  
Ion Exchange Resin ◽  
Fermentation Inhibitors ◽  
Formic Acid Hydrolysis ◽  
Wheat Straw Hydrolysate

Xylitol can be obtained from hemicelullosic fraction of lignocellulosic materials containing D-xylose. Formic acid hydrolysis is widely used in lignocellulose pretreatment. However, formic acid hydrolysis wheat straw cannot be directly used as fermentation subsequently owing to various fermentation inhibitors, especially the formic acid in reaction system and released during pretreatment. This study describes main hydrolysis components and inhibitors prepared by hydrolysis of wheat straw with formic acid solution, and different detoxification methods ware used to romve the inhibitors. Study found treatment of wheat straw hydrolysate with overliming treatment and D311 ion-exchange resin had a good result on reduction formic acid and other main inhibitors, results showed which can eliminate 94% of residual formic acid and with only 15% reducion of xylose. To verify the effectiveness of different detoxification methods, hydrolysates of detoxification werr fermented by Candida.tropicalis AS2.1776, and the results also found that the hydrolysate treatmented with overliming treatment and D311 ion-exchange resin have the hightest xylitol yield.

Interactions between Carboxylic Acids and Heteroaromatics: A Rotational Study of Formic Acid–Pyridine

2016 ◽  
Vol 120 (27) ◽  
pp. 5094-5098 ◽  
Author(s):  
Lorenzo Spada ◽  
Qian Gou ◽  
Barbara M. Giuliano ◽  
Walther Caminati
Keyword(s):  
Formic Acid ◽  
Carboxylic Acids

Dissolution of wood in α-keto acid and aldehydic carboxylic acids and fractionation at room temperature

2014 ◽  
Vol 16 (7) ◽  
pp. 3569-3579 ◽  
Author(s):  
Yuri Nishiwaki-Akine ◽  
Takashi Watanabe
Keyword(s):  
Formic Acid ◽  
Carboxylic Acids ◽  
Pyruvic Acid ◽  
Ball Mill ◽  
Room Temperature ◽  
Glyoxylic Acid ◽  
Keto Acid

Wood pulverised using a ball mill was dissolved in an α-keto acid, pyruvic acid, and two aldehydic carboxylic acids, namely glyoxylic acid and formic acid, at room temperature.

Thermal Diffusion of Weak Electrolytes III. The Soret Coefficients of Normal Carboxylic Acids

2000 ◽  
Vol 214 (1) ◽  
Author(s):  
L. Domonkos ◽  
J. Liszi
Keyword(s):  
Formic Acid ◽  
Aqueous Solutions ◽  
Carboxylic Acids ◽  
Thermal Diffusion ◽  
Soret Coefficient ◽  
Conductometric Method ◽  
New Model ◽  
Weak Electrolytes

A conductometric method is described and applied for the determination of the Soret coefficient of normal carboxylic acids in aqueous solutions in order to check a new model described in our previous papers. The Soret cell originally developed by Agar and Turner was applied with only minor modifications. The results show that the deviations between the measured and calculated Soret coefficients are lower than 2.5% except for formic acid (33% in average).

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