Electrodialysis in a non-aqueous medium: production of sodium methoxide

Sridhar, Srinivasan

doi:10.1016/0376-7388(95)00217-0

Cited by 46 publications

(24 citation statements)

References 2 publications

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“…First, the OH − ions formed at the cathode by water splitting (Figure 1) reacted with the methanol molecules to form reactive methoxide ions (CH3O − ), with sodium ions (Na + ) as counterions (Sridhar, 1996). Then, the methoxide ions attacked the TG molecules to form esters in a process similar to the reaction (1) (Guan and Kusakabe, 2009).…”

Section: Conversion Of Canola Oil In Methanolic and Ethanolic Reactiomentioning

confidence: 99%

“…The transesterification reaction of canola oil, for instance, occurs in the methanol phase where sodium methoxides, the reactive species, are formed by reaction of the methanol molecules with the sodium hydroxide catalyst (Sridhar, 1996). However, during the methoxide formation process, water molecules are formed and parasitic saponification reactions may occur, reducing the yield and quality of the final product (Mardhiah et al, 2017).…”

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confidence: 99%

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Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes

et al. 2017

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Biodiesel is a growing alternative to petroleum fuels and is produced by the catalyzed transesterification of fats in presence of an alcohol base. Transesterification processes using homogeneous catalysts are considered to be among the most efficient methods but rely on the feedstock quality and low water content in order to avoid undesirable saponification reactions. In this work, the electro-catalytic conversion of canola oil to biodiesel in a 1% aqueous methanolic and ethanolic reaction mixture was performed without the addition of external catalyst or cosolvent. An inexpensive stainless steel (SS) electrode and a hybrid SS electrode coated with an ion-exchange resin catalyst were used as cathode materials while the anode was composed of a plain carbon paper. The cell voltages were varied from 10 to 40 V and the reaction temperature maintained at 20 or 40°C. The canola oil conversion rates were found to be superior at 40°C without saponification reactions for cell voltages below 30 V. The conversion rates were as high as 87% for the hybrid electrode and 81% for the plain SS electrode. This work could inspire new process development for the conversion of high water content feedstock for the production of second-generation biodiesel.

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Section: Conversion Of Canola Oil In Methanolic and Ethanolic Reactiomentioning

confidence: 99%

mentioning

confidence: 99%

Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes

et al. 2017

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“…Bazinet et al [9] developed an electro-acidification technology using BPM for the food industry. Sidhar [10] successfully synthesized acetoacetic ester using BPM with methanol splitting, which initiates novel and green paths for organic synthesis. Our laboratory has prepared thioglycolic acid [11] and FeO 4 2- [12], 2,2-dimethyl-3-hydroxyl propanoic acid using BPM as a separator [13].…”

Section: Introductionmentioning

confidence: 99%

Electro-generation of 3-methyl-2-formylaminopyridine using a bipolar membrane as separator

et al. 2009

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A mSA-mCS bipolar membrane was prepared by sodium alginate/polyvinyl alcohol (SA/PVA) and chitosan/polyvinyl alcohol (CS/PVA) modified by Fe 3? and glutaraldehyde as linking reagents, respectively. The mSAmCS bipolar membrane was investigated by FT-IR, SEM, I-V curves, ion exchange capacity and changes of pH in the anode and cathode chambers. The SA-CS/PVA bipolar membrane was used as a separator in the electrolysis cell to electrogenerate 3-methyl-2-formylaminopyridine. The product yield was 49.8% and higher than that produced in a Nafion mono-membrane-equipped cell. Compared with the traditional chemistry method, the electro-generating process is moderate and eliminates pollution to the environment.

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“…However, the bipolar membrane can also realize alcohol splitting; i.e., alcohol is split into alkoxide anions and H + . Sridhar first reported methanol splitting in bipolar membranes [7] and successfully applied it to the production of acetoacetic ester [8].…”

Section: Introductionmentioning

confidence: 99%

Bipolar membrane electrodialysis in an organic medium: Production of methyl methoxyacetate

Huang

2009

Journal of Membrane Science

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Electrodialysis in a non-aqueous medium: production of sodium methoxide

Cited by 46 publications

References 2 publications

Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes

Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes

Electro-generation of 3-methyl-2-formylaminopyridine using a bipolar membrane as separator

Bipolar membrane electrodialysis in an organic medium: Production of methyl methoxyacetate

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