Results 11 to 20 of about 1,521 (129)

Influência da mono-hidrogenação da fração C5 na sí­ntese do TAME usando Amberlyst 15 como catalisador

open access: yesActa Scientiarum: Technology, 2008
No presente trabalho, foi estudada a sí­ntese do TAME, em fase lí­quida, a partir de uma fração C5 e metanol, utilizando Amberlyst 15 como catalisador. A fração C5 utilizada possui uma diolefina, que tem uma alta tendência í  formação de gomas e um alto ...
Gilberto da Cunha Gonçalves   +3 more
doaj   +1 more source

Green synthesis of banana flavor using different catalysts: a comparative study of different methods

open access: yesGreen Chemistry Letters and Reviews, 2020
Esterification of isoamyl alcohol with acetic acid was studied using different ion-exchange resins, namely Amberlyst 15 dry, Amberlyst 16 wet, Amberlite 120-IR.
Mahdieh Zare   +2 more
doaj   +1 more source

An eco-friendly methodology for the synthesis of azocoumarin dye using cation exchange resins

open access: yesHeliyon, 2021
An azo dye bearing coumarin moieties were prepared by diazotization of 4-Nitro aniline using amberlyst-15 as an acid catalyst then coupling of the obtained diazonium salt with coumarin.
Fadia Al-Haj Hussien
doaj   +1 more source

Adsorption potential of macroporous Amberlyst-15 for Cd(II) removal from aqueous solutions

open access: yesMaterials Research Express, 2020
The macroporous ion exchange resins are unique and most suitable for the adsorption of heavy metal ions due to their porous three-dimensional structures and large specific surface areas.
Rabil Razzaq   +4 more
doaj   +1 more source

Manufacture of n-Propyl Propionate Using Ion Exchange Resins: Reaction Kinetics and Feasibility of Reactive Distillation

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2022
Reaction kinetics of esterification of propionic acid with 1-propanol to produce n-propyl propionate using Amberlyst-15 as a catalyst was investigated in this work. Effect of various parameters was studied.
Reshma R. Devale   +2 more
doaj   +1 more source

Acid-Catalyzed Conversion of Cellulose Into Levulinic Acid With Biphasic Solvent System

open access: yesFrontiers in Plant Science, 2021
In this work, acid-catalyzed conversion of cellulose into levulinic acid in a biphasic solvent system was developed. Compared to a series of catalysts investigated in this study, the Amberlyst-15 as a more efficient acid catalyst was used in the ...
Changyue Ma   +7 more
doaj   +1 more source

Etherification of Glycerol with Propylene or 1-Butene for Fuel Additives

open access: yesThe Scientific World Journal, 2017
The etherification of glycerol with propylene over acidic heterogeneous catalysts, Amberlyst-15, S100, and S200 resins, produced mono-propyl glycerol ethers (MPGEs), 1,3-di- and 1,2-di-propyl glycerol ethers (DPGEs), and tri-propyl glycerol ether (TPGE).
Chakrapong Saengarun   +2 more
doaj   +1 more source

Preparation of a Carbon-Based Solid Acid Catalyst by Sulfonating Activated Carbon in a Chemical Reduction Process

open access: yesMolecules, 2010
Sulfonated (SO3H-bearing) activated carbon (AC-SO3H) was synthesized by an aryl diazonium salt reduction process. The obtained material had a SO3H density of 0.64 mmol·g-1 and a specific surface area of 602 m2·g-1.
Xiao-Yan Liu   +7 more
doaj   +1 more source

Adsorption Equilibria of Linear Alkenes onto a Sulphonated Styrene-Divinylbenzene Copolymer

open access: yesAdsorption Science & Technology, 2008
The adsorption equilibrium constants of the alkenes propene, but-1-ene, pent-1-ene, hex-1-ene and hept-1-ene onto the sulphonated styrene-divinylbenzene copolymer Amberlyst 15 were determined by inverse gas chromatography.
Piotr M. Słomkiewicz
doaj   +1 more source

Kinetics Modeling of Glycerol Carbonate Synthesis from Glycerol and Urea over Amberlyst-15 Catalyst

open access: yesIndonesian Journal of Chemistry, 2019
Synthesize of glycerol carbonate from glycerol and urea is an attractive path as glycerol carbonate has a large potential as a green solvent. The aim of the present study was to develop a kinetic model of glycerol carbonate synthesis with amberlyst-15 ...
Hary Sulistyo   +3 more
doaj   +1 more source

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