Acid catalyst
Direct production of biodiesel from high-acid value Jatrophaoil with solid acid catalyst derived from lignin
... the catalyst possessed high catalytic activity in the esterification reaction, we therefore used crude Jatropha oil with high-acid value ...solid acid catalyst achieved a high biodiesel ...
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Catalyst Activity of Solid Acid Catalyst Derived From Agricultural Biomass for Biodiesel Production From Waste Cooking Oil
... sulfonic acid functional group attached to ...solid acid catalyst synthesis provides advantages in the reduction and recycling of waste biomass as well as an environmental-friendly solution in ...
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Silica Boron Sulfonic Acid as Heterogeneous and Highly Efficient Solid Acid Catalyst For the Preparation of Hantzsch 1,4-dihydropyridines Under Solvent-Free
... solid acid catalyst can act as a Lewis acid and Brønsted acid catalyst, which this behavior can be help to the better effect ...sulfonic acid (BSA) supported on silica gel for ...
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Application of Sulfonic Acid Functionalized SBA-15 as a Nanoporous Acid Catalyst in Microwave Assisted Synthesis of 2-Aryl Benzoxazoles
... Sulfonic acid functionalized SBA-15 as a nanoporous acid catalyst was used in the synthesis of 2-Aryl benzoxazoles 4 by the condensation of 2-aminophenol 1 and benzoyl chlorides 2 under microwave ...
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Preparation, Characterization and Catalytic Activity of Alkyl Benzene Sulfonic Acid Carbon Based Acid Catalyst
... sulfonic acid as the materials, a novel carbon-based solid acid catalyst is synthesized using hydrothermal ...This catalyst exhibits much higher catalytic activity in the reaction of ...
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Synthesis of Dihydroquinoline Derivatives Using Biodegradable Cellulose Sulfuric Acid as a Solid Acid Catalyst
... sulfuric acid has emerged as a solid acid catalyst for acid catalyzed reactions, such as synthesis of a-aminonitriles [17], imidazoazines [18], quinolines [19], xanthenes [20], 3,4- ...
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Acid Activated Palygorskite: An Efficient Solid Acid Catalyst for Acetylation Reactions – A Comparative Study
... the catalyst is compared with catalyst prepared from the original sample (AM) collected from Clay mineral society of Attapulgate, Department of Geology PFL1 US Repository, Missori ...the acid ...
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Method of Converting Free Fatty Acids to Fatty Acid Methyl Esters
... in acid oil or acid fat into fatty acid methyl esters is ...an acid catalyst to the acid oil or acid fat and subjecting the mixture to conditions that allow the fatty ...
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Sulfonic Acid Solid Catalytic Pretreatment and Hydrolysis of Biomass.
... However acid pretreatment requires special downstream processing in the form of neutralization, which involves costly and inefficient separation from homogeneous reaction mixtures, resulting in a sulfate ...solid ...
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Ultrasonic Assisted Production of Biodiesel from Waste Frying Oil Using a Two Step Catalyzing Process
... the acid value of the treating oil is greater than ...high acid value [5]. When the acid value of the treating oil is greater than ...the acid process is preferred for commercial use because ...
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Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature
... solid acid catalyst for the synthesis of indazolo[1,2-b]- phthalazinetriones [36] was reported by Kiasat et ...solid acid catalyst for acid-catalyzed reactions, such as preparation of ...
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Synthesis And Characterization Of Ester Trimethylolpropane Based Jatropha Curcas Oil As Biolubricant Base Stocks
... isovaleric acid and ...bisulphate catalyst at a temperature of 110-120 °C for 2 ...sulfuric acid catalyst in the same reaction resulted in 78% ester at a temperature of 110-120 °C for 60 hours ...
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Investigations of Cost-Effective Biodiesel Production from High FFA Feedstock
... hand, acid catalyzed systems are more tolerant to the presence of FFA but still the reaction rate is hindered by ...an acid catalyst to convert FFA into FAAE under mild operating ...sulphuric ...
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Asymmetric dihydroxylation and Wittig-Horner approach tothe synthesis of bioactive molecules and heterogeneouscatalysis for organic transformations
... tamoxifen and mintlactone and is divided into three sections. Chapter 3: includes the synthesis, characterization and catalytic properties of sulfated yttrium based strong Lewis acid catalyst and is divided ...
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Journal of Applied Pharmaceutical Science
... Citric acid/sodium hypophosphite system (Reddy and Yang, 2010) was used as a crosslinker for the PVA/HEC ...bi-carboxylic acid compound namely; citric acid in the presence of acid ...
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Synthesis of Solid Base and Acid Catalysts from Agricultural Residues For Use in Fatty Acid Methyl Esters (FAMEs) Production.
... oleic acid in the presence of methanol at 60 °C for 8 h, with samples being drawn at 2 h ...soaked catalyst performed better than other ...the catalyst with a 6 h soak ...as acid ...
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A GREEN AND EFFICIENT ROUTE TO SYNTHESIS OF DIACETALS WITH PENTAERYTHRITOL USING SOLID ACID CATALYSTS
... camphorsulphonic acid [22], iodine [23], formic acid [24] and a series of cationic diphosphine Lewis acidic complexes of Pt(II), Pd(II), and Rh(III) etc ...solid acid catalyst eliminates the ...
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Esterification of stearic acid for biodiesel production in the presence of homogeneous milder organic acid as a catalyst
... and catalyst weight accurately and placed into the round bottom ...oxalic acid catalyst was recovered as residue in the distillation ...the acid value by simple titrimetric ...
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Text BC final IC STAR2015 pdf
... acetic acid (CH3COOH) and ethanol (C2H5OH) using sulfuric acid catalyst ...acetic acid with a hydrocarbon group in ...acetic acid and ethyl alcohol over a catalytically ZSM-5 ...
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Highly efficient sulfonic/carboxylic dual acid synergistic catalysis for esterification enabled by sulfur rich graphene oxide
... solid acid catalyst for biodiesel production through esterification of fatty acids with ...solid acid catalyst. In this communication, a novel dual-acid catalyst, ...oleic ...
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