Results 281 to 290 of about 1,257,928 (348)

Life Cycle Assessment of vegetable oil based polyols for polyurethane production

, 2020
Vegetable oils offer a reliable chemical platform to synthesize polyols for polyurethane production to replace fully or partially polyurethane precursors that are derived from petrochemical resources.
A. Fridrihsone, F. Romagnoli, V. Kirsanovs, U. Cābulis   +3 more
semanticscholar   +1 more source

Nonedible vegetable oil-based cutting fluids for machining processes – a review

, 2020
Cutting fluids are an inherent part of the modern manufacturing system. With the increase in the industrialization and development of new materials and processes, there has been a need for developing new cutting fluids with superior performance.
Rahul Katna, M. Suhaib, Narayan Agrawal
semanticscholar   +1 more source

Evaluating critical characteristics of vegetable oil as a biodegradable insulating oil for transformer

, 2020
In transformer, fuel based mineral oil is used as insulation and coolant over many years. The ecological issue related with the current liquid insulation system is the throwing away of used oil samples after drawn out service.
Senthil Kumar Subburaj, M. Rengaraj, R. Mariappan   +2 more
semanticscholar   +1 more source

Recycling clays used in Bleaching vegetable oils

Bulletin of Pure & Applied Sciences- Chemistry, 2014
The efficiency of recycled clays to bleach oils measured by decrease in absorbance of bleached oils was largest when recycled clays had been calcined at 450°C and leached in boiling mixture of 20% acid strength for 16 hours. The Langmuir constant a varied from 0.4x10−2 to 16 x10−2 and b increased from 4.7x10−2 to 95.38x10−2.
I.Z. Mukasa-Tebandeke, P.J.M. Ssebuwufu, G.W.A. Nyakairu, S.A. Nyanzi, M. Ntale, A. Schumann, F. Lugolobi   +6 more
openaire   +1 more source

Electrocoagulation of vegetable oil refinery wastewater using aluminum electrodes

Journal of Environmental Management, 2009
Electrocoagulation with aluminum electrodes was used to treat the vegetable oil refinery wastewater (VORW) in a batch reactor. The effects of operating parameters such as pH, current density, PAC (poly aluminum chloride) dosage and Na(2)SO(4) dosage on the removal of organics and COD removal efficiency have been investigated. It has been shown that the
Un, Umran Tezcan, Koparal, Ali Savaş, Öğütveren, Ülker Bakır   +2 more
openaire   +3 more sources

Conversion of Vegetable Oil to Biodiesel Using Ultrasonic Irradiation

Chemistry Letters, 2003
Abstract The influence of low frequency ultrasounds (28 and 40 kHz) versus mechanical stirring on the transesterification reaction of neat vegetable oil with methanol under base-catalysis was studied and the results are presented. It was found that the optimized variables of 6:1 methanol/oil (mol/mol), 0.5% NaOH (wt/wt), and 40 kHz ...
Carmen Stavarache, Mircea Vinatoru, Rokuro Nishimura, Yasuaki Maeda   +3 more
openaire   +1 more source

Rapid identification and quantification of cheaper vegetable oil adulteration in camellia oil by using excitation-emission matrix fluorescence spectroscopy combined with chemometrics.

Food Chemistry, 2019
Camellia oil is a high quality oil mainly produced in southern China. It is common that unscrupulous merchants attempt to make huge profits by adulterating camellia oil with other cheaper or lower-quality vegetable oils.
Tong Wang, Hai-Long Wu, Wanjun Long, Yong Hu, Li Cheng, An-Qi Chen, R. Yu   +6 more
semanticscholar   +1 more source

Comprehensive study of process parameters affecting oil agglomeration using vegetable oils

Fuel, 2013
Abstract Spherical agglomeration is a size enlargement process in which the disperse medium is held together in aggregates by liquid bridges of an immiscible agglomerating agent in the dispersion medium in general, an aqueous environment. Extensive studies on the process have shown that the process is affected by a number of process parameters.
G.H.V.C. Chary, M.G. Dastidar
openaire   +1 more source

Discrimination of vegetable oils using monochromatic light

IMPACT-2013, 2013
This paper describes a simple and inexpensive method to characterize and differentiate edible oils including castor, olive, sunflower, mustard and groundnut oil. In this method monochromatic light at wavelength 635nm, 565nm, 470nm and 430nm is passed through the oil sample.
openaire   +1 more source

Discrimination of olive oil adulterated with vegetable oils using dielectric spectroscopy

Journal of Food Engineering, 2010
Abstract The study focused on application of dielectric spectroscopy to identify the adulteration of olive oil. The dielectric properties of binary mixture of oils were investigated in the frequency range of 101 Hz–1 MHz. A partial least squares (PLS) model was developed and used to verify the concentrations of the adulterant.
Hu Lizhi, K. Toyoda, I. Ihara
openaire   +1 more source