Investigation of the extraction of antipyrine in a horizontal continuous countercurrent extractor with a rotating insert

1969 ◽  
Vol 3 (1) ◽  
pp. 43-46
Author(s):  
G. K. Goncharenko ◽  
V. S. Zolomarev ◽  
S. T. Shebanova
Keyword(s):  
Continuous Countercurrent ◽  
Countercurrent Extractor

Performance of continuous countercurrent extractor on the fractionation of Citrus bergamia essential oil using ethanol/water mixtures as solvents

2018 ◽  
Vol 137 ◽  
pp. 566-576 ◽  
Author(s):  
Daniel Gonçalves ◽  
Cristina Chiyoda Koshima ◽  
Fábio Rodolfo Miguel Batista ◽  
Christianne Elisabete da Costa Rodrigues
Keyword(s):  
Essential Oil ◽  
Continuous Countercurrent ◽  
Countercurrent Extractor ◽  
Citrus Bergamia

Study on Purification of U Scraps in Continuous Countercurrent Extractor

2017 ◽  
Author(s):  
Fei He ◽  
Qiang Wan
Keyword(s):  
Reynolds Number ◽  
Residence Time ◽  
Extraction Efficiency ◽  
Impurity Content ◽  
Raw Material ◽  
Phase Ratio ◽  
Extraction Degree ◽  
Effects Of Rotation ◽  
Continuous Countercurrent ◽  
Countercurrent Extractor

In this paper, the feasibility of continuous countercurrent extractor (CCE) applied in extraction of U scraps rather than mixer-settler was studied. Effects of rotation Reynolds number, residence time on extraction and reverse extraction efficiency were investigated respectively. During the process, impurity content in raw material had a slight effect on extraction. Under the optimum conditions of O/A phase ratio of 1.2 and rotation Reynolds number of 13824, extraction degree of scrap pellet solution and alkalescence dreg lixivium were good with the residence time of 19 min and 26 min respectively. Under the best reverse extraction conditions of A/O phase ratio of 1.2, rotation Reynolds number of 23128 and residence time of 19 min, two kinds of raw material liquid mentioned as above could get better reverse extraction efficiency, while uranium concentration of raffinate phase and impurity content of reverse extract phase satisfied the technological requirement. This study verified the feasibility of CCE developed for purification of U scraps, identified the operation parameter, and provided an experimental basis for industrial expansion in the future.

Separation of carbon dioxide and methane in continuous countercurrent gas centrifuges

2005 ◽  
Vol 60 (16) ◽  
pp. 4397-4407 ◽  
Author(s):  
Ralph van Wissen ◽  
Michael Golombok ◽  
J.J.H. Brouwers
Keyword(s):  
Carbon Dioxide ◽  
Continuous Countercurrent

Aqueous food-grade and cosmetic-grade surfactant systems for the continuous countercurrent cloud point extraction

2018 ◽  
Vol 202 ◽  
pp. 76-85 ◽  
Author(s):  
Ralena Racheva ◽  
Anne Feline Rahlf ◽  
Dennis Wenzel ◽  
Clemens Müller ◽  
Martin Kerner ◽  
...  
Keyword(s):  
Cloud Point ◽  
Cloud Point Extraction ◽  
Food Grade ◽  
Surfactant Systems ◽  
Continuous Countercurrent

Fractionation of citrus oil by supercritical countercurrent extractor with side-stream withdrawal

1998 ◽  
Vol 13 (1-3) ◽  
pp. 311-317 ◽  
Author(s):  
Masaki Sato ◽  
Mitsuru Kondo ◽  
Motonobu Goto ◽  
Akio Kodama ◽  
Tsutomu Hirose
Keyword(s):  
Side Stream ◽  
Countercurrent Extractor

In situ continuous countercurrent cloud point extraction of microalgae cultures

2018 ◽  
Vol 190 ◽  
pp. 268-277 ◽  
Author(s):  
Ralena Racheva ◽  
Nick Tietgens ◽  
Martin Kerner ◽  
Irina Smirnova
Keyword(s):  
Cloud Point ◽  
Cloud Point Extraction ◽  
Continuous Countercurrent

Improved protein A resin for antibody capture in a continuous countercurrent tangential chromatography system

2019 ◽  
Vol 117 (3) ◽  
pp. 646-653 ◽  
Author(s):  
Dmitriy Fedorenko ◽  
Amit K. Dutta ◽  
Jasmine Tan ◽  
Jonathan Walko ◽  
Mark Brower ◽  
...  
Keyword(s):  
Protein A ◽  
Antibody Capture ◽  
Continuous Countercurrent
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