Characterization of barium hexaferrite produced by varying the reaction parameters at the mixing-points in a supercritical water crystallization process

2004 ◽  
Vol 21 (3) ◽  
pp. 582-588 ◽  
Author(s):  
Sung-Chan Nam ◽  
Gun-Joong Kim
Keyword(s):  
Supercritical Water ◽  
Crystallization Process ◽  
Barium Hexaferrite ◽  
Reaction Parameters ◽  
Water Crystallization

scholarly journals Screening a Strain of Klebsiella sp. O852 and the Optimization of Fermentation Conditions for Trans-Dihydrocarvone Production

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2432
Author(s):  
Li Chen ◽  
Lu-Lu Zhang ◽  
Jing-Nan Ren ◽  
Xiao Li ◽  
Gang Fan ◽  
...  
Keyword(s):  
Ethanol Concentration ◽  
Flavor Compounds ◽  
Accession Number ◽  
Reaction Parameters ◽  
Isolation And Characterization ◽  
Biotransformation Process ◽  
Pharmaceutical Industries ◽  
Final Ethanol Concentration ◽  
Optimization Of Fermentation

Flavors and fragrances have high commercial value in the food, cosmetic, chemical and pharmaceutical industries. It is interesting to investigate the isolation and characterization of new microorganisms with the ability to produce flavor compounds. In this study, a new strain of Klebsiella sp. O852 (accession number CCTCC M2020509) was isolated from decayed navel orange (Citrus sinensis (L.) Osbeck), which was proved to be capable of converting limonene to trans-dihydrocarvone. Besides, the optimization of various reaction parameters to enhance the trans-dihydrocarvone production in shake flask was performed for Klebsiella sp. O852. The results showed that the yield of trans-dihydrocarvone reached up to 1 058 mg/L when Klebsiella sp. O852 was incubated using LB-M medium for 4 h at 36 °C and 150 rpm, and the biotransformation process was monitored for 36 h after adding 1680 mg/L limonene/ethanol (final ethanol concentration of 0.8% (v/v)). The content of trans-dihydrocarvone increased 16 times after optimization. This study provided a basis and reference for producing trans-dihydrocarvone by biotransformation.

ChemInform Abstract: Flow Method for Rapidly Producing Barium Hexaferrite Particles in Supercritical Water.

ChemInform ◽  
2010 ◽  
Vol 29 (49) ◽  
pp. no-no
Author(s):  
Y. HAKUTA ◽  
T. ADSCHIRI ◽  
T. SUZUKI ◽  
T. CHIDA ◽  
K. SEINO ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Barium Hexaferrite ◽  
Flow Method

Characterization of Alloy 214 After Exposure to Superheated Steam at 800 °C

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Nick Tepylo ◽  
Rainier Garcia Sanchez ◽  
Xiao Huang
Keyword(s):  
Weight Gain ◽  
Supercritical Water ◽  
Weight Change ◽  
Superheated Steam ◽  
Substrate Surface ◽  
Surface Oxidation ◽  
Metal Substrate ◽  
Cr Content

In this study, an Al-containing alloy 214 was evaluated in superheated steam at 800 °C for a duration of 600 h. The purpose of using superheated steam was to simulate the supercritical water (SCW) condition at higher temperatures where no commercial SCW rig is currently capable of reaching (800 °C and beyond). After exposure to superheated steam, the weight change and surface oxidation were analyzed. Alloy 214 experienced greater weight gain than IN 625 and Ni20Cr5Al, due to its low Cr content. Formation of both Cr2O3 and Al2O3 was observed on the surface after 300 and 600 h of exposure. However, as exposure progressed, more Ni and Mn-containing spinel started to form, signaling Cr and Al depletion on the metal substrate surface.

Characterization of Water-in-Oil Emulsion and Upgrading of Asphalt with Supercritical Water Treatment

2017 ◽  
Vol 31 (2) ◽  
pp. 1468-1477 ◽  
Author(s):  
Di Shu ◽  
Yong Chi ◽  
Jieli Liu ◽  
Qunxing Huang
Keyword(s):  
Water Treatment ◽  
Supercritical Water ◽  
Oil Emulsion ◽  
Water In Oil Emulsion

Characterization of a new magnesium hydrogen orthophosphate salt, Mg3.5H2(PO4)3, synthesized in supercritical water

2007 ◽  
Vol 9 (5) ◽  
pp. 385-393 ◽  
Author(s):  
Hassane Assaaoudi ◽  
Zhen Fang ◽  
Ian S. Butler ◽  
Dominic H. Ryan ◽  
Janusz A. Kozinski
Keyword(s):  
Supercritical Water

Characterization of the oil fractions of shale oil obtained by pyrolysis and supercritical water extraction

Fuel ◽  
1995 ◽  
Vol 74 (1) ◽  
pp. 46-50 ◽  
Author(s):  
Jale Yanik ◽  
Mithat Yüksel ◽  
Mehmet Saǧlam ◽  
Nuray Olukçu ◽  
Keith Bartle ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Water Extraction ◽  
Shale Oil ◽  
Oil Fractions
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