scholarly journals Electrochemistry of silicon in chloro-fluoride and carbonate melts

2003 ◽  
Vol 39 (1-2) ◽  
pp. 303-307 ◽  
Author(s):  
S.V. Devyatkin
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Behavior ◽  
Excessive Pressure ◽  
Ternary Compounds ◽  
Fluoride Melts ◽  
Carbon Dioxide Atmosphere ◽  
Boron Silicide

The electrochemical behavior of K2SiF6 in chloro-fluoride melts and that of SiO2 in carbonate melts has been studied. Silicon, titanium silicides, boron silicide and ternary compounds Ti-Si-B have been deposited from chloro-fluoride melts. Only SiC was deposited from carbonate-silica melts under carbon dioxide atmosphere (that is, excessive pressure of CO2).

Thermodynamic Studies of Iron Carbonate Solubility in Aqueous Monoethylene Glycol Mixtures and CO2 Atmosphere

2016 ◽  
Vol 830 ◽  
pp. 134-138 ◽  
Author(s):  
Camila Senna Figueiredo ◽  
Jailton Ferreira do Nascimento ◽  
Rony Oliveira de Sant'ana ◽  
Deborah Cordeiro de Andrade ◽  
Zaniel Souto Dantas Procópio ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
High Capacity ◽  
Gas Production ◽  
Aqueous Mixtures ◽  
Iron Carbonate ◽  
Low Viscosity ◽  
Carbon Dioxide Atmosphere ◽  
Equilibrium Data ◽  
Monoethylene Glycol

Monoethylene glycol (MEG) is being widely applied as thermodynamic inhibitor to avoid formation of natural gas hydrates. High hydrophilicity, low toxicity, low viscosity, low solubility in liquid hydrocarbons and high capacity of dissolving salts are advantageous for the use of MEG in the natural gas production. In addition, MEG recovery can be easily achieved considering its low volatility in relation to water, which makes the process economical and environmentally feasible. The reuse of MEG is being theme of research and phase equilibrium data for the involved species are required. In this work, a experimental procedure to synthetize iron carbonate and, afterwards, determine its solubility in aqueous mixtures of MEG in the presence of carbon dioxide atmosphere have been developed. Furthermore, a series of solubility data has been measured. This work presents a worthy contribution to the description of iron carbonate aqueous solubilities in the presence of MEG and carbon dioxide, regarding the instability of the salt to respect of oxidation. Subsequently, the knowledge of the behavior of the iron carbonate solubilities is useful for the industrial unities of production of natural gas and recovery of MEG.

Electrochemical Behavior of Niobium Complexes in Chloride-Fluoride Melts with Addition of Alkaline Cations

2018 ◽  
Vol 86 (14) ◽  
pp. 69-80 ◽  
Author(s):  
Daria A. Vetrova ◽  
Anna V. Popova ◽  
Sergey A. Kuznetsov
Keyword(s):  
Electrochemical Behavior ◽  
Fluoride Melts ◽  
Alkaline Cations ◽  
Niobium Complexes

Growth of Clostridium perfringens in Fish Fillets Packaged with a Controlled Carbon Dioxide Atmosphere at Abuse Temperatures

1996 ◽  
Vol 59 (7) ◽  
pp. 704-710 ◽  
Author(s):  
BON KIMURA ◽  
SHUSAKU KURODA ◽  
MASATADA MURAKAMI ◽  
TATEO FUJII
Keyword(s):  
Carbon Dioxide ◽  
Clostridium Perfringens ◽  
Storage Time ◽  
Health Hazard ◽  
Food Poisoning ◽  
Lag Phase ◽  
Carbon Dioxide Gas ◽  
Fish Fillets ◽  
Carbon Dioxide Atmosphere ◽  
Gas Atmosphere

The growth of Clostridium perfringens inoculated in fish fillets of jack mackerel subsequently packaged under a controlled carbon dioxide gas atmosphere (40% CO2, 60% N2) was investigated at marginal growth (15°C) and stimulative ambient (30°C) handling temperatures. The fish fillets were inoculated with C. perfringens, packaged either with air or the modified controlled carbon dioxide atmosphere and stored at 15°C and 30°C. No increase in the C. perfringens population in the fish was noted regardless of the type of packaging at 15°C in 3 days storage time, when all samples were spoiled. C. perfringens rapidly increased in the abuse temperature (30°C) after a 2- to 4-h lag phase regardless of the package type, but growth was significantly more stimulated under the controlled carbon dioxide gas atmosphere within 6 h of storage time. When fish fillets inoculated with C. perfringens were stored at 5°C for 24 h before being held at 30°C for 6 h, C. perfringens did not grow during the abuse-temperature storage. This suggests a reduction of a health hazard risk by the organism when the distribution temperature of the fish fillets is strictly controlled below 5°C. However, the combination of two temperature-abuse events during distribution and consumer handling may lead to a higher food-poisoning risk by the organism in controlled CO2 modified atmosphere-packaged fish compared to air-packaged fish. Product control of the initial contamination of organisms at low levels during raw fish processing will prevent food poisoning

Pt-Ru/C anode performance of polymer electrolyte fuel cell under carbon dioxide atmosphere

2016 ◽  
Vol 206 ◽  
pp. 254-258 ◽  
Author(s):  
Sayoko Shironita ◽  
Kazutaka Sato ◽  
Kazuma Yoshitake ◽  
Minoru Umeda
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Carbon Dioxide Atmosphere

scholarly journals STRONTIUM CARBONATE SOLUBILITY DATA IN AQUEOUS MIXTURES OF MONOETHYLENEGLYCOL UNDER A CARBON DIOXIDE ATMOSPHERE

2018 ◽  
Vol 35 (2) ◽  
pp. 395-402
Author(s):  
Deborah C. de Andrade ◽  
Naíra S. de A. Maniçoba ◽  
Rony O. Sant'ana ◽  
Fedra A.V. Ferreira ◽  
Camila S. Figueiredo ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Strontium Carbonate ◽  
Solubility Data ◽  
Aqueous Mixtures ◽  
Carbon Dioxide Atmosphere

scholarly journals Synthesis of highly dispersed calcium carbonate at excessive pressure of carbon dioxide

2019 ◽  
Vol 1348 ◽  
pp. 012038
Author(s):  
S Yu Bogoslovskii ◽  
A G Mechandin ◽  
V S Boldyrev ◽  
A S Kovalenko
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Excessive Pressure ◽  
Highly Dispersed
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