Results 1 to 10 of about 464,550 (250)

Comparative Analysis of Bio-Vanillin Recovery from Bioconversion Media Using Pervaporation and Vacuum Distillation [PDF]

open access: yesMembranes, 2022
The increasing demand for natural products has led to biotechnological vanillin production, which requires the recovery of vanillin (and vanillyl alcohol at trace concentrations, as in botanical vanillin) from the bioconversion broth, free from potential
Rita Valério   +2 more
doaj   +4 more sources

Optimal conditions of vacuum distillation process for obtaining the high grade pure magnesium [PDF]

open access: yesTehnika, 2014
In this paper the procedure of obtaining of high purity magnesium by using the vacuum distillation process has been shown. Vacuum distillation process has been conducted under low and high vacuum at different operating temperatures and times.
Matković Vladislav Lj.   +5 more
doaj   +3 more sources

Phase Evolution During Extraction and Recovery of Pure Nd from Magnet [PDF]

open access: yesArchives of Metallurgy and Materials, 2021
Liquid Metal Extraction process using molten Mg was carried out to obtain Nd-Mg alloys from Nd based permanent magnets at 900oC for 24 h. with a magnet to magnesium mass ratio of 1:10. Nd was successfully extracted from magnet into Mg resulting in ~4 wt.%
Mohammad Zarar Rasheed   +5 more
doaj   +1 more source

Validation of Diesel Fraction Content in Heavy Oils Measured by High Temperature Simulated Distillation and Physical Vacuum Distillation by Performance of Commercial Distillation Test and Process Simulation

open access: yesApplied Sciences, 2022
A gas chromatography high temperature simulation distillation (HTSD: ASTM D 7169), and physical vacuum distillation (ASTM D 1160) were employed to characterize H-Oil vacuum distillates, straight run vacuum distillates, and hydrotreated vacuum distillates
Dicho Stratiev   +6 more
doaj   +1 more source

Study on removal of oxide from carrier salt in molten salt reactor by vacuum distillation

open access: yesHe jishu, 2022
BackgroundIn molten salt reactor, the concentration of oxygen impurities in the molten salt should be strictly controlled to avoid the potential safety risks caused by the reaction of O2- in the carrier salt with UF4 fuel to generated UO2 precipitation ...
ZHENG Xiaoqiang   +6 more
doaj   +1 more source

Clean and Efficient Recovery of Lithium from Al-Li Alloys via Vacuum Fractional Condensation

open access: yesSeparations, 2023
Al-Li alloys are ideal structural materials for the aerospace industry. However, an increasing number of Al-Li alloys have reached the end of their service life and must be recycled.
Lei Shi   +6 more
doaj   +1 more source

Production of 5-hydroxymethylfurfural from Japanese cedar (Cryptomeria japonica) in an ionic liquid, 1-methylimidazolium hydrogen sulfate

open access: yesScientific Reports, 2021
Production of 5-hydroxymethylfurfural (5-HMF) from Japanese cedar (Cryptomeria japonica) using an ionic liquid, 1-methylimidazolium hydrogen sulfate ([MIM]HSO4), was investigated. 5-HMF can be produced from C. japonica at temperatures above 120 °C.
Ryoya Ito, Hisashi Miyafuji
doaj   +1 more source

Recovery of Te for the scrap of Bi2Te3-based alloys by vacuum metallurgy

open access: yesMaterials Research Express, 2021
Every year a large amount of scrap can be produced from the Bi _2 Te _3 -based alloys when processing. A clean, new vacuum distillation method is proposed to purify Te from the scrap of Bi _2 Te _3 -based alloys.
Dong Kong   +10 more
doaj   +1 more source

APPLICATIONS OF MOLECULAR DISTILLATION TECHNIQUE IN FOOD PRODUCTS

open access: yesItalian Journal of Food Science, 2015
There are several separation techniques -including conventional distillation- for extracting heat sensitive compounds from food products. However, some compounds may have high boiling points at which other compounds might be adversely affected.
O. Ketenoglu, A. Tekin
doaj   +1 more source

Peningkatan kadar patchouli alcohol pada minyak nilam (Pogostemon cablin Benth) dengan metode distilasi fraksinasi vakum

open access: yesJournal of Biological Researches, 2012
The quality of nilam (Pogostemon cablin Benth) oil depend on it patchouli alcohol value. At there time nilam farmers just has produced nilam oil with patchouli alcohol value about 26–28%. To increase this value, fractional vacuum distillation had been
Rahma Isfaroiny, Mitarlis Mitarlis
doaj   +1 more source

Home - About - Disclaimer - Privacy