Results 271 to 280 of about 325,287 (328)
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In situ reactive extraction of itaconic acid during fermentation of Aspergillus terreus

Biochemical engineering journal, 2018
As a promising value-added chemical from biomass, itaconic acid has great potential in the replacement of petrochemical-based materials and the production of versatile polymers.
D. Kreyenschulte   +8 more
semanticscholar   +1 more source

Decrease in reactivity of basophils by immunotherapy with housedust extract

Clinical & Experimental Allergy, 1985
SummaryChanges of basophil reactivity to housedust extract and anti‐IgE during immunotherapy was examined in thirteen patients with bronchial asthma sensitive to housedust. (i) A significant decrease in the morphological reactivity of basophils to housedust extract was observed 6 months after the beginning of immunotherapy with the antigen, and a ...
I, Kimura   +4 more
openaire   +2 more sources

Reactive Extraction Technology

2014
Reactive extraction is a process intensification alternative for conventional biodiesel processes, which effectively combines the extraction of oils using a solvent, with the (trans-) esterification reaction yielding fatty esters (biodiesel). This chapter gives an ample overview of using reactive extraction for biodiesel production—where typically the ...
openaire   +1 more source

Reactive Extraction of Propionic Acid

2017
192Propionic acid is greatly utilized in food, chemical, pharmacy, and other industries. The gaining values of fermentation explained with new techniques leads to focus on technologies for downstream processing for product separation. The reactive extraction is effectively used to recover propionic acid from process feed solution.
A. Thorgule, R. P. Ugwekar
openaire   +1 more source

Equilibrium studies on reactive extraction of lactic acid with an amine extractant

The Chemical Engineering Journal and the Biochemical Engineering Journal, 1997
Abstract Equilibrium studies on the extraction of lactic acid from aqueous solutions with tri-n-octylamine (TOA) in xylene were made in the temperature range 293–323 K. The formulation of the extracted species in the organic phase and the corresponding equilibrium constants were numerically determined at different temperatures.
Ruey-Shin Juang, Ren-Hour Huang
openaire   +1 more source

Parametric optimization of green synergistic reactive extraction of lactic acid using trioctylamine, Aliquat336, and butan-2-ol in sunflower oil by response surface methodology

Chemical Engineering Communications, 2018
A novel green synergistic reactive extraction technique for the removal of lactic acid (LA) from aqueous solution was explored. Response surface methodology (RSM) was applied to optimize the process variables for LA synergistic reactive extraction using ...
Ashok Kumar, Avinash Thakur
semanticscholar   +1 more source

The use of membrane based reactive extraction for the recovery of carboxylic acids from thin stillage

Separation and Purification Technology, 2018
Within the carboxylate platform, carboxylic acids are seen as important building-blocks for the chemical industry, but their recovery is challenging. Membrane based reactive extraction (MBRE) was evaluated for the recovery of these acids from a fermentor
Kristien De Sitter   +4 more
semanticscholar   +1 more source

Investigation of reactive extraction on single droplets

Chemical Engineering Science, 1983
Abstract Extraction of dichlorphenol from freely suspended single drops into a continuous phase enhanced by an instantaneous chemical reaction was investigated using NaOH solutions of different concentrations. Also, the reverse mass transfer direction from the continuous phase into the dispersed phase was studied by extracting salicylic acid with the
Werner Halwachs, Karl Schügerl
openaire   +1 more source

Experimental study on hold-up, characteristic and slip velocities in a horizontal pulsed sieve-plate column and uranium reactive extraction condition in aqueous phase

Progress in nuclear energy (New series), 2018
The uranium extraction efficiency from sulfate leach liquor and the hydrodynamic behavior of the reactive extraction system was studied in the horizontal pulsed sieve-plated column.
F. Khanramaki   +3 more
semanticscholar   +1 more source

Process intensification with reactive extraction columns

Chemical Engineering and Processing: Process Intensification, 2008
Abstract Process intensification of liquid–liquid extraction columns using reactive extraction systems and population balance modelling approaches are discussed. As a means of process intensification, bulk organic solvents could be replaced by chemically reactive organic phases in order to enhance the extraction efficiency and selectivity.
H.-J. Bart, C. Drumm, M.M. Attarakih
openaire   +1 more source

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