Nickel sulphide concentrate processing via low-temperature calcination with sodium chloride. Part 1 – Identification of interaction products

2019 ◽  
Vol 134 ◽  
pp. 37-53 ◽  
Author(s):  
P.V. Aleksandrov ◽  
A.S. Medvedev ◽  
V.A. Imideev ◽  
D.O. Moskovskikh
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Nickel Sulphide

Nickel Sulfide Concentrate Processing Using Low-Temperature Roasting with Sodium Chloride

Metallurgist ◽  
2014 ◽  
Vol 58 (5-6) ◽  
pp. 353-359 ◽  
Author(s):  
V. A. Imideev ◽  
P. V. Aleksandrov ◽  
A. S. Medvedev ◽  
O. V. Bazhenova ◽  
A. R. Khanapieva
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Nickel Sulfide ◽  
Nickel Sulfide Concentrate ◽  
Sulfide Concentrate

STATUS OF THE RADAPPERTIZATION OF MEATS1

1974 ◽  
Vol 37 (2) ◽  
pp. 86-93 ◽  
Author(s):  
D. B. Rowley ◽  
Abe Anellis ◽  
E. Wierbicki ◽  
A. W. Baker
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Proteolytic Enzymes ◽  
Model Systems ◽  
Human Consumption ◽  
Cured Meats ◽  
Radiation Resistant ◽  
Animal Feeding ◽  
Resistant Strains ◽  
Microbiological Data

Considerable progress has been made toward development of highly acceptable radappertized meats through application of a heat treatment to an internal temperature of 65–80 C to inactivate proteolytic enzymes before irradiation, low temperature (−30 ± 10 C) of the food during irradiation, and addition of low levels of tripolyphosphate and sodium chloride. To assure that radappertized meats are free of potential pathogens and spoilage microorganisms they are given a minimum radiation dose (MRD) computed to effect a 12 log cycle reduction in the most radiation resistant strains of Clostridium botulinum spores. Inoculated pack studies are carried out to obtain the specific microbiological data required for computing the MRD. Cured meats normally have a lower MRD than uncured meats. In model systems concentrations of sodium chloride (NaCl) up to 4.0% (w/v) present during irradiation had no effect on radiation resistance, but NaCl did inhibit recovery of irradiated spores. A mixture of salts (4.0% NaCl, 30 ppm NaNO2 500 ppm NaNO3) had essentially the same effect as NaCl alone. Of 11 genera of vegetative cells examined, Micrococcs radiodurans and Streptococcus faecium were shown to be the most resistant to low-temperature gamma irradiation. Before the radappertization process can be established commercially it is necessary to provide proof that products so treated are safe for human consumption. An intensive animal feeding study of radappertized (4.7–7.1 Mrads) beef was initiated in 1971 and is expected to be completed in 1976.

Optimization of processing methods of low-temperature roasting of molybdenite concentrate with sodium chloride

2015 ◽  
pp. 20-23
Author(s):  
P. V. Aleksandrov ◽  
◽  
A. S. Medvedev ◽  
A. N. Vlasenko ◽  
◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Processing Methods ◽  
Molybdenite Concentrate

Processing of udokan copper sulphide concentrate by low-temperature roasting with sodium chloride

2018 ◽  
pp. 18-23
Author(s):  
P. V. Aleksandrov ◽  
◽  
A. S. Medvedev ◽  
V. A. Imideev ◽  
A. O. Berbenev ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Copper Sulphide

Low temperature synthesis of ITO nanoparticles with cubic structure by calcining a mixture of indium tin hydroxide and sodium chloride

Rare Metals ◽  
2014 ◽  
Vol 36 (7) ◽  
pp. 607-611
Author(s):  
Xing-Hua Su ◽  
Ben-Pan Wang ◽  
Lei-Chao Meng ◽  
Peng Zhao ◽  
Tao Ai ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Cubic Structure ◽  
Ito Nanoparticles

scholarly journals Isolation and identification of a high-efficiency phenol-degrading bacteria and optimization of its degradation conditions

2021 ◽  
Vol 293 ◽  
pp. 01028
Author(s):  
Haili Sun ◽  
Tianpeng Gao ◽  
Guohua Chang ◽  
Xisheng Tai ◽  
Ruiqi Yang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sodium Chloride ◽  
Low Temperature ◽  
High Efficiency ◽  
Phenol Degradation ◽  
Pcr Amplification ◽  
Toxic Substances ◽  
Isolation And Identification ◽  
Gram Staining ◽  
Degrading Bacteria

Phenol is widely used in China, it not only pollutes the environment, but also accumulates toxic substances in the human body through the food chain, further harming humans. In this experiment, a strain of high-efficiency low-temperature degradation phenol bacteria B5 was selected from the soil contaminated by organic matter of Lanzhou. Through research methods such as Gram staining observation, DNA extraction, PCR amplification, sequencing and comparison, it was found that this strain was Pantoea agglomerans. Through the subsequent optimization of degradation conditions, it was found that the B5 strain can degrade 500mg/L of phenol to 24.8mg/L in 36h. The ability to degrade phenol is stronger between pH5.5-pH6.0, and the ability to degrade phenol is higher in a medium containing 4-8g/L sodium chloride. This research can provide certain theoretical guidance for phenol degradation.

scholarly journals Low–Temperature Storage and the Viability Preservation of Streptomyces

2019 ◽  
Vol 48 (3) ◽  
pp. 34-40
Author(s):  
Татьяна Выборнова ◽  
Tatyana Vybornova ◽  
Наталья Шарова ◽  
Natalya Sharova ◽  
Анастасия Принцева ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Low Temperature ◽  
Corn Starch ◽  
Activity Level ◽  
Glycerol Solution ◽  
Inhibitor Activity ◽  
Biosynthetic Activity ◽  
Initial Inoculum ◽  
Low Temperature Storage ◽  
Temperature Storage

The most effective way to store microorganisms of different taxonomic groups is at low temperatures from minus 12°C to minus 150°C. The present research features the influence of low temperature (minus 12°C and 18°C) on the viability of collection strains of actinomycetes Streptomyces lucensis VKPM Ac-1743 and Streptomyces violaceus VKPM Ac-1734, producers of glycosidase inhibitors. The strains were stored without a cryoprotector in a 15% glycerol solution and 0.9% sodium chloride aqueous liquid. The research objective was to check their ability to keep their inhibitor activity against pancreatic amylase during corn starch hydrolysate fermentation. The experiment made it possible to determine the titer (CFU in 1 cm3 of the initial inoculum) and inhibitory activity against pancreatic α-amylase. It was revealed that Streptomyces lucensis and Streptomyces violaceus strains in cell initial concentrations of 107 and 108 CFU/cm3 maintained high viability level during four months conservation in 15% glycerol solution and 0.9% sodium chloride aqueous solution at the temperatures of minus 12 °C and minus 18 °C. Most cells survived at the conservation in a 15% glycerol solution at minus 18 °C. The inhibitor activity level in cultural liquid was higher in Streptomyces lucensis and Streptomyces violaceus strains kept in 15% glycerol solution at low the temperatures than in those kept in a 0.9% sodium chloride solution. The cultures kept in a 15% glycerol solution at minus 18 °C had higher inhibitor activity indicators 2600 ± 200 IU/cm3 . The research proved that low-temperature storage of Streptomyces produces no negative effect on the viability and biosynthetic activity of the cultures.

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