One-step extracting lead from galena (PbS) by a vacuum distillation method

Vacuum ◽  
2022 ◽  
Vol 196 ◽  
pp. 110789
Author(s):  
Zhaowang Dong ◽  
Xueyi Guo ◽  
Bin Yang ◽  
Heng Xiong ◽  
Wenlong Jiang
Keyword(s):  
Vacuum Distillation ◽  
Distillation Method ◽  
One Step

Improved synthesis of [ 18 F]FLETT via a fully automated vacuum distillation method for [ 18 F]2-fluoroethyl azide purification

2014 ◽  
Vol 94 ◽  
pp. 72-76 ◽  
Author(s):  
Uwe Ackermann ◽  
Lucie Plougastel ◽  
Yit Wooi Goh ◽  
Shinn Dee Yeoh ◽  
Andrew M. Scott
Keyword(s):  
Vacuum Distillation ◽  
Distillation Method

scholarly journals Simulation and flavor compound analysis of dealcoholized beer via one-step vacuum distillation

2015 ◽  
Vol 76 ◽  
pp. 751-760 ◽  
Author(s):  
Cristina Andrés-Iglesias ◽  
Juan García-Serna ◽  
Olimpio Montero ◽  
Carlos A. Blanco
Keyword(s):  
Vacuum Distillation ◽  
Flavor Compound ◽  
One Step

Use of Closed-System Vacuum Distillation for Isolation of Moderately Volatile Compounds

1981 ◽  
Vol 64 (3) ◽  
pp. 769-771
Author(s):  
Daniel H Daniels ◽  
Charles R Warner ◽  
Thomas J Birkel
Keyword(s):  
Volatile Compounds ◽  
Vacuum Distillation ◽  
Choline Chloride ◽  
Azeotropic Distillation ◽  
Distillation Method ◽  
Ionization Detector ◽  
Aqueous Methanol ◽  
Ethylene Chlorohydrin ◽  
Flame Ionization ◽  
The Matrix

Abstract A rapid, efficient vacuum distillation method has been used to quantitatively determine moderately volatile compounds in food-related samples. The following components and matrices were studied: 1,4-dioxane in polysorbate 65 and choline chloride; ethylene chlorohydrin in choline chloride, choline bitartrate, and cumin; and epichlorohydrin, 1,3-dichloro-2-propanol, and l-chloro-2-propanol in cornstarch. The matrix is slurried with water or aqueous methanol, frozen, and subjected to vacuum distillation. The distillate, which is free of salts and nonvolatile matrix components, is chromatographed on a gas chromatographic column and quantitated using a flame ionization detector. Foaming, which is a problem with purge and trap and azeotropic distillation procedures, does not occur. Recoveries of the components ranged from 85 to 101% at levels of 0.5-600 ppm

scholarly journals Determination of Oxygen Solubility in NaK-78 by Vacuum Distillation Method

1983 ◽  
Vol 20 (12) ◽  
pp. 1032-1038 ◽  
Author(s):  
Takao SAKAP ◽  
Minoru GUNJI ◽  
Seio MATSUMOTO ◽  
Yoichiro ISHII
Keyword(s):  
Vacuum Distillation ◽  
Oxygen Solubility ◽  
Distillation Method

Direct extracting lead sulfide and antimony trisulfide via a vacuum distillation method

2021 ◽  
Vol 279 ◽  
pp. 119776
Author(s):  
Zhaowang Dong ◽  
Zhentao Zhou ◽  
Heng Xiong ◽  
Bin Yang ◽  
Yongnian Dai
Keyword(s):  
Lead Sulfide ◽  
Vacuum Distillation ◽  
Distillation Method

Mineral Oil Vacuum Distillation Method for Nitrosamines in Fried Bacon, with Thermal Energy Analyzer: Collaborative Study

1982 ◽  
Vol 65 (6) ◽  
pp. 1319-1332
Author(s):  
Earl L Greenfield ◽  
Wertice J Smith ◽  
Anthony J Malanoski ◽  
◽  
M Benson ◽  
...  
Keyword(s):  
Thermal Energy ◽  
Vacuum Distillation ◽  
Collaborative Study ◽  
Mineral Oil ◽  
Distillation Method ◽  
Energy Analyzer ◽  
Coefficients Of Variation

Abstract Nine laboratories participated in a collaborative study of a method for determining 6 nitrosamines, dimethylnitrosamine, diethylnitrosamine, dibutylnitrosamine, nitrosopiperidine, nitrosopyrrolidine, and nitrosomorpholine, in the 5-17 ppb range. The coefficients of variation for repeatability were 10.8, 8.5,10.4, 8.5, 8.7, and 7.8% with corresponding coefficients of variation for reproducibility of 16.4, 12.0,13.6,10.8,11.2, and 10.3% and recoveries of 89.6, 91.6, 84.7, 90.0, 89.6, and 88.1%, respectively. The method was adopted official first action.

scholarly journals Magnetic phase diagrams of Gd-H, Tb-H, Dy-H systems

2018 ◽  
Vol 185 ◽  
pp. 05011 ◽  
Author(s):  
Victoria Chzhan ◽  
Irina Tereshina ◽  
Gennady Burkhanov ◽  
Galina Politova ◽  
Henryk Drulis
Keyword(s):  
Phase Diagrams ◽  
Vacuum Distillation ◽  
Magnetic Phase ◽  
Rare Earth Metals ◽  
Distillation Method ◽  
Hydrogen Impurity ◽  
Thermomagnetic Analysis ◽  
Phase Transition Temperatures ◽  
The Impact ◽  
Magnetic Phase Diagrams

We study the impact of hydrogen impurity on the magnetic phase transition temperatures of the high purity rare-earth metals Gd, Tb and Dy. Prior to hydrogenation, the rare earths were purified by the vacuum distillation method. Hydrogenation was carried out using a Sievert-type apparatus. Magnetic phase diagrams were constructed based on the thermomagnetic analysis.

scholarly journals Chemical changes in sea water off Plymouth during 1957

1959 ◽  
Vol 38 (1) ◽  
pp. 41-45 ◽  
Author(s):  
F. A. J. Armstrong ◽  
E. I. Butler
Keyword(s):  
Vacuum Distillation ◽  
Sea Water ◽  
Inorganic Nitrogen ◽  
Distillation Method ◽  
Chemical Changes ◽  
The Government ◽  
Nitrate And Nitrite

Analyses of sea water collected during 1957 at the International Hydrographic Station E1 (lat. 50° 02′ N., long 4° 22′ W.) are given here in the same form as in earlier reports (Armstrong, 1954, 1955, I957> 1958). The methods of collection and of analysis for phosphorus and silicon are substantially unchanged. Some analyses were made for ammonia by a vacuum distillation method (Riley, 1953), and for inorganic nitrogen (nitrate + nitrite + ammonia) by reduction of nitrate and nitrite with nickel (Riley & Sinhaseni, 1957) to ammonia, which was vacuum distilled. Salinities were determined by the Government Chemist's Department.We wish to express our thanks to Lt.-Cdr. C. A. Hoodless and the crew of R.V. ‘Sarsia’ and to Capt. W. J. Creese and the crew of R.V. ‘Sula’, for assistance at sea.

scholarly journals Determination of oxygen in sodium by vacuum distillation method

1972 ◽  
Vol 21 (7) ◽  
pp. 936-938 ◽  
Author(s):  
Masao TAKAHASHI ◽  
Misao OUCHI
Keyword(s):  
Vacuum Distillation ◽  
Distillation Method
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