Results 121 to 130 of about 78,114 (297)

Kinetics of acetic acid esterification with 2-ethoxyethanol over an Al-pillared clay catalyst

, 2004
The Al-pillared clay catalyst obtained by exposing activated clay powder to sulfuric acid and aluminium salts and calcining in air at 373-673 K, was found to be highly active for the title reaction.
Li, WZ, Wang, YJ
core  

Esterification in sulphuric acid [PDF]

, 1957
The possible nitrating entities for the esterification of alcohols by nitric acid in sulphuric and perchloric acids have been discussed, and the interpretation of nitration mechanisms by correlation with acidity functions considered.
Frizel, D. E.
core  

Decreasing acid value of fatty acid ethyl ester products using complex enzymes

Frontiers in Bioengineering and Biotechnology
Recently, enzymatic method has been used to prepare biodiesel using various oils. But the high acid value of the biodiesel product using enzyme as a catalyst has been one issue. In this work, an attempt to reduce the acid value of fatty acid ethyl ester (
Yuting Li, Jingjing Guo, Shangde Sun
doaj   +1 more source

Esterification and Transesterification Optimization Processes of Nonedible (Castor and Neem) Oils for the Production of Biodiesel

Fuels
In current times, the diminishing reserves of petroleum, increased energy consumption across various sectors, and their consequential environmental impact have become apparent.
Hamid Ayyub, Muhammad Arslan, Muhammad Jamshaid, Akbar Ali Qureshi, Arslan Ahmed, Haji Hassan Masjuki, Md. Abul Kalam, Farah Binti Ahmad, Hafiz Liaqat Ali, Muhammad Umair Ahsan Khan, Muhammad Umer Khallidoon   +10 more
doaj   +1 more source

Boric acid catalyzed chemoselective esterification of alpha-hydroxycarboxylic acids

, 2004
Boric acid catalyzes the selective esterification of alpha-hydroxycarboxylic acids without causing significant esterification to occur with other carboxylic acids.
Wilkinson, B. L., Houston, T. A., Blanchfield, J. T.   +2 more
core   +2 more sources

Disubstituted Meldrum’s Acid: Another Scaffold with SuFEx-like Reactivity

Molecules
Sulfur Fluoride Exchange (SuFEx) chemistry represents an emerging class of click reactions that has found broad applications in drug discovery and materials science.
Baoqi Chen, Zhenguo Wang, Xiaole Peng, Jijun Xie, Zhixiu Sun, Le Li   +5 more
doaj   +1 more source

Production of methyl ester from oil in the wastewater pond of a palm oil factory [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2007
This research studied the suitable technique for the production of methyl ester from waste palm oil in the water pond of a palm oil mill. The composition of the waste palm oil was 73.82% fatty acid, 5.07% triglyceride, 3.39% diglyceride and 17.76 ...
Tongurai, C., Chuntorng-orn, K.
doaj  

The study of heterogeneous catalysts for biodiesel synthesis

A study in search of new heterogeneous catalysts that can be used in place of homogeneous catalysts for biodiesel synthesis has been carried out.
Andrijanto, Eko
core  

Kinetics of Vapor Phase Esterification.

, 1950
The esterification of organic acids and alcohols is a common industrial and laboratory reaction generally carried out in a homogeneous liquid phase batch process.

core  

Resolution of 2-alkanols by microbially-catalyzed esterification

, 1998
A method based on the use of whole lyophilized microbial cells has been developed for resolution of 2-alkanols. Firstly, the esterification of racemic 2-octanol with butyric acid was studied. Rhizopus oryzae CBS 112-07 grown on Tween 80 was selected as a
VILLA, RAFFAELLA, F. Aragozzini, F. Molinari, L. Mantegazza   +3 more
core   +1 more source