Results 21 to 30 of about 81,431 (303)

Síntesis y Caracterización de Espumas Flexibles de Poliuretano Obtenidas a partir de Aceite de Castor Maleneizado [PDF]

open access: yes, 2009
En este trabajo se realiza la síntesis de espumas flexibles de poliuretano empleando un diseño experimental Taguchi, utilizando aceite de castor con y sin maleinización, se estudia la cinética de la reacción de esterificación del aceite por ...
Estenoz, Diana Alejandra   +2 more
core   +2 more sources

Analisis Emisi GRK dan Konversi Energi pada Produksi Minyak Jarak (Ricinus communis L.) dengan Metode Life Cycle Assessment (LCA)

open access: yesJournal of Natural Resources and Environmental Management, 2019
Castor oil (Ricinus communis L.) is a renewable, multifunction vegetable oil, used in wide range of chemical industry feedstock. Nowadays, a product derived from castor has able to replace petroleum-based chemical feedstock.
Medy Ramdhani   +2 more
doaj   +1 more source

From seeds to bioenergy: a conversion path for the valorization of castor and jatropha sedes

open access: yesGrasas y Aceites, 2022
The world’s energy matrix can be diversified with biodiesel from castor and jatropha oil. Hence, the objective of this study was to assess a conversion path for the valorization of castor and jatropha seeds.
D.G. Montes-Núñez   +7 more
doaj   +1 more source

Efficacy of different oils used for the extraction of annatto colour from the seeds of Bixa orellana L. [PDF]

open access: yes, 2015
Annatto, a naturally obtained colour is a potential and valuable Non Wood Forest Product (NWFP). It is obtained from the seeds of plant species Bixa orellana L.
Behera, L. K.   +4 more
core   +2 more sources

Experimental and empirical study of diesel and castor biodiesel blending effect, on kinematic viscosity, density and calorific value

open access: yesEgyptian Journal of Petroleum, 2016
This study aimed to investigate the fuel properties like density, viscosity and calorific value of trans-esterified methyl ester using castor biodiesel and their blends with No. 2 diesel.
A. Amin   +4 more
doaj   +1 more source

Pengaruh Konsentrasi Oksidator pada Proses Hidroksilasi Minyak Jarak (Castor Oil) Dengan atau Tanpa Proteksi Gugus Hidroksi

open access: yesJournal of Mathematical and Fundamental Sciences, 2013
Oil is derived from the bean of castor plant ricinus communis l., belonging to euphorbiaceae family. Oil rendement per gram of castor bean is 45 "“ 48 % with hight pure product and better than standard resulted by The Association of Official Analytical ...
Marlina Marlina   +3 more
doaj   +1 more source

Propriétés et utilisation de l’huile de ricin

open access: yesOléagineux, Corps gras, Lipides, 2012
Castor and its derived oil, the so-called ‘‘castor oil’’, are known from the ancient times, when the oil was used for cosmectics, or as a laxative, or as a fuel in lamps.
Dumeignil Franck
doaj   +1 more source

TRANSFORMATION OF RICINOLEIC OF CASTOR OIL INTO LINOLEIC (OMEGA-6) AND CONJUGATED LINOLEIC ACID BY DEHYDRATION

open access: yesIndonesian Journal of Chemistry, 2010
The ricinoleic of Castor Oil was dehydrated by various dehydrator agent (P2O5, K2CO3, H3PO4, NaHSO4, Al2O3, molecular sieve and activated bentonite at 450 °C - HCl) on the same condition (150 °C, mol ratio 1:1 and 2 hours ).
Marham Sitorus   +3 more
doaj   +1 more source

Thermal degradation and spectroscopy characterizations of TPS/PBAT blends irradiated by Cobalt-60 source

open access: yesBrazilian Journal of Radiation Sciences, 2022
This study aimed to prepare blends of natural polymers of TPS with PBAT by reactive extrusion with irradiation process, using the plasticizers (castor oil and glycerol) to evaluate the thermal and chemical properties.
Dione Pereira de Castro   +1 more
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

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