ChemInform Abstract: OXIDATION OF ANTHRACENE TO ANTHRAQUINONE IN LIQUID PHASE WITH AN AIR/OXYGEN/NITRIC ACID SYSTEM

1982 ◽  
Vol 13 (49) ◽  
Author(s):  
C. K. DAS ◽  
N. S. DAS
Keyword(s):  
Nitric Acid ◽  
Liquid Phase ◽  
Acid System

Solvent Extraction and Stripping Studies in Microchannels with TBP Nitric Acid System

2014 ◽  
Vol 32 (3) ◽  
pp. 281-300 ◽  
Author(s):  
Nirvik Sen ◽  
Mayur Darekar ◽  
K. K. Singh ◽  
S. Mukhopadhyay ◽  
K. T. Shenoy ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Solvent Extraction ◽  
Acid System

Liquid-Phase Oxidation Modification of Carbon Fiber Surface

2012 ◽  
Vol 430-432 ◽  
pp. 2008-2012 ◽  
Author(s):  
Wen Bo Lu ◽  
Cheng Guo Wang ◽  
Hua Yuan ◽  
Xiu Ying Hu
Keyword(s):  
Nitric Acid ◽  
Liquid Phase ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Fiber Surface ◽  
Oxidation Time ◽  
Liquid Phase Oxidation ◽  
Acid Oxidation ◽  
Oxidation Treatment ◽  
Phase Oxidation

The carbon fibers were subjected to liquid–phase oxidation treatment in 65% nitric acid solution. The relation between liquid-phase oxidation time and structure of carbon fibers had been assessed by LRS, XRD, SEM, and FTIR. The results indicate that smaller surface crystallites obtained by etching and more unsaturated carbon created after treatment, and corrosion enhanced with the increase of oxidation time. But nitric acid oxidation treatment does not change the bulk structure of carbon fibers. After nitric acid treated, the grooves of surface is wider and deeper compared to the original carbon fiber, When the oxidation times reach 12 hours, the surface of carbon fibers is severely damage. When the oxidation times reach 6 hours, there is not any characteristic peek in the FTIR. But after oxidation treatment for 9 hours, -COOH, -OH can be found from FTIR. So the best time for liquid-phase oxidation process is 9 hours.

Chemical Waves in the Iodide-Nitric Acid System

1994 ◽  
Vol 98 (23) ◽  
pp. 6030-6037 ◽  
Author(s):  
Istvan P. Nagy ◽  
Andrea Keresztessy ◽  
John A. Pojman ◽  
Gyorgy Bazsa ◽  
Zoltan Noszticzius
Keyword(s):  
Nitric Acid ◽  
Acid System ◽  
Chemical Waves

Separation of U and Pu by countercurrent chromatography with support-free liquid stationary phase in the TBP white spirit nitric acid system

2006 ◽  
Vol 48 (3) ◽  
pp. 284-287
Author(s):  
M. N. Litvina ◽  
D. A. Malikov ◽  
T. A. Maryutina ◽  
Yu. M. Kulyako ◽  
B. F. Myasoedov
Keyword(s):  
Nitric Acid ◽  
Stationary Phase ◽  
White Spirit ◽  
Countercurrent Chromatography ◽  
Acid System ◽  
Liquid Stationary Phase

Hydrodynamic and mass transfer studies of 125 mm centrifugal extractor with 30% TBP/nitric acid system

2015 ◽  
Vol 85 ◽  
pp. 1-10 ◽  
Author(s):  
Kinkar Mandal ◽  
Shekhar Kumar ◽  
V. Vijayakumar ◽  
U. Kamachi Mudali ◽  
A. Ravisankar ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Nitric Acid ◽  
Acid System ◽  
Centrifugal Extractor ◽  
Mass Transfer Studies

Convective effects on chemical waves. 3. Multicomponent convection in the iron(II)-nitric acid system

1991 ◽  
Vol 95 (3) ◽  
pp. 1306-1311 ◽  
Author(s):  
John A. Pojman ◽  
Istvan P. Nagy ◽  
Irving R. Epstein
Keyword(s):  
Nitric Acid ◽  
Acid System ◽  
Chemical Waves ◽  
Multicomponent Convection
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