Production of condensed phosphate by plasma chemical treatment of phosphate raw material

1985 ◽  
Vol 5 (3) ◽  
pp. 275-282 ◽  
Author(s):  
A. L. Mosse ◽  
V. V. Pechkovsky ◽  
E. D. Dzyuba ◽  
L. I. Krasovskaya
Keyword(s):  
Chemical Treatment ◽  
Raw Material ◽  
Plasma Chemical ◽  
Condensed Phosphate ◽  
Phosphate Raw Material

The influence of plasma chemical treatment of nickel and nickel-rhenium catalysts deposited on sibunite on their activity in dehydrogenation

2007 ◽  
Vol 81 (5) ◽  
pp. 696-700 ◽  
Author(s):  
A. A. Trofimova ◽  
M. A. Ryashentseva ◽  
N. Yu. Isaeva ◽  
T. V. Yagodovskaya ◽  
V. D. Yagodovskii
Keyword(s):  
Chemical Treatment ◽  
Plasma Chemical

Topochemistry regularities in evaluation technique of phosphate raw material reactivity

2012 ◽  
Vol 85 (4) ◽  
pp. 535-543
Author(s):  
N. V. Shul’ga ◽  
N. P. Krut’ko
Keyword(s):  
Raw Material ◽  
Evaluation Technique ◽  
Phosphate Raw Material

Synthesis of NPK fertilizer from low-grade phosphate raw material

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Anar Kareeva ◽  
Uilesbek Besterekov ◽  
Perizat Abdurazova ◽  
Ulzhalgas Nazarbek ◽  
Irina Pochitalkina ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphical Method ◽  
Raw Materials ◽  
Xrd Analysis ◽  
Raw Material ◽  
Low Grade ◽  
Phosphate Raw Material ◽  
Npk Fertilizer ◽  
Scanning Electron ◽  
Comprehensive Study

Abstract The article presents the results of studies of the process of obtaining NPK fertilizer from low-grade phosphate raw materials with P2O5 of about 18%. Phosphate raw materials were leached with a mixture of nitric-phosphoric acids with the addition of potassium carbonate, which serves as a source of potassium in the final product. The main parameters determined were the content of the main nutrients P2O5:N:K2O, temperature and time of the leaching process. According to the graphical method, the “apparent” activation energy of the heterogeneous process is found, which is equal to 3.8 kJ/mol indicates the intradiffusion nature of the process. Methods of chemical analysis, scanning electron microscopy and XRD analysis were used for a comprehensive study of raw materials and final products.

Converting chicken manure into highly active N–P co-doped metal-free biocarbon electrocatalysts: effect of chemical treatment on their catalytic activity for the ORR

2019 ◽  
Vol 3 (5) ◽  
pp. 1307-1316 ◽  
Author(s):  
I. L. Alonso-Lemus ◽  
M. Z. Figueroa-Torres ◽  
D. Lardizabal-Gutíerrez ◽  
P. Bartolo-Pérez ◽  
J. C. Carrillo-Rodríguez ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Chemical Treatment ◽  
Raw Material ◽  
Chicken Manure ◽  
Metal Free ◽  
Highly Active ◽  
Co Doped

In this work, the use of chicken manure as the raw material for obtaining metal-free biocarbons as electrocatalysts was studied.

Plasma-chemical treatment effect observed during the fabrication of AlGaN/GaN devices

2015 ◽  
Vol 9 (4) ◽  
pp. 684-693 ◽  
Author(s):  
K. L. Enisherlova ◽  
V. S. Kulikauskas ◽  
L. A. Seidman ◽  
V. V. Pishchagin ◽  
A. M. Konovalov ◽  
...  
Keyword(s):  
Treatment Effect ◽  
Chemical Treatment ◽  
Plasma Chemical

scholarly journals Masking coating formation by the focused ion beams method for plasma chemical treatment

2018 ◽  
Vol 1124 ◽  
pp. 081035 ◽  
Author(s):  
I N Kots ◽  
V S Klimin ◽  
V V Polyakova ◽  
A A Rezvan ◽  
Z E Vakulov ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Ion Beams ◽  
Focused Ion Beams ◽  
Plasma Chemical ◽  
Coating Formation

scholarly journals STUDYING THE INFLUENCE OF PLASMA-CHEMICAL AND OZONE TREATMENT ON ARTIFICIALLY IMPLEMENTED MICROFLORA IN MODEL AQUEOUS SOLUTIONS

2021 ◽  
pp. 177-182
Author(s):  
G.V. Taran ◽  
D.V. Kudin ◽  
O.O. Zamuriev ◽  
P.О. Opalev ◽  
М.О. Yaroshenko ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Aqueous Solution ◽  
Aspergillus Flavus ◽  
Chemical Treatment ◽  
Ozone Treatment ◽  
Plasma Chemical ◽  
Bacteriostatic Effect ◽  
Pilot Studies ◽  
Test Culture ◽  
Time Parameters

The pilot studies have been conducted to determine the biocidal effects of ozone and plasma chemical treatment for 1, 2, and 3 h on the strain “Moldavian” of infectious rhinotracheitis virus, reference strain of Escherichia coli ATCC 25922, atypical mycobacteria of the species Mycobacusleum phlei and archival strain of Aspergillus flavus artificially introduced into aqueous solution. It is shown that both treatments of aqueous solution contaminated with infectious rhinotracheitis virus have virucidal properties at the level of 95…100%. It was found that bactericidal (bacteriostatic) effect of ozone treatment for Escherichia coli fluid was 100% for all the time parameters. For plasma chemical treatment, the bacteriostatic effect (23%) was shown after the treatment within 3 h. The bactericidal (bacteriostatic) effect of ozone treatment for water samples contaminated with mycobacteria of the species M. phlei was only 65% at the treatment for 3 h. There was no bacteriostatic effect for plasma chemical treatment at any exposure. When studying the fungicidal (fungistatic) properties of ozone treatment for aqueous solution contaminated with a test culture of Aspergillus flavus, fungicidal properties were established (growth retardation by 95…98%). No fungicidal or fungistatic properties were shown for plasma chemical treatment.

scholarly journals ENZIMATIC HYDROLYSIS PROCESS FOR INCREASING GLUCOSE LEVELS FROM COCONUT HUSK WASTE

2021 ◽  
Vol 2 (2) ◽  
pp. 1-6
Author(s):  
Dwi Anna Anggorowati ◽  
Sriliani Sriliani ◽  
Anis Artiyani ◽  
Harimbi Setyawati ◽  
Kevin J
Keyword(s):  
Glucose Level ◽  
Chemical Treatment ◽  
Raw Material ◽  
Bioethanol Production ◽  
Hydrolysis Time ◽  
Cellulase Enzymes ◽  
Glucose Levels ◽  
Coconut Husk ◽  
Hydrolysis Process ◽  
Physical And Chemical

Coconut husk waste is waste that has not been used optimally, generally only as a craft material. Seeing the composition of coconut husk, it has the potential to be used as an alternative fuel, one of which is to produce bioethanol products. The purpose of this research was to utilize coconut husk waste as raw material for bioethanol production and to assess the effect of the number of enzymes and time of hydrolysis on the glucose levels produced. In this research, the authors focused on obtaining glucose levels from coconut husks by hydrolysis using cellulase enzymes with an activity of 700 EGU/g. The variations used in this research were the volume of cellulase enzymes (2, 3, 4, 5, 6) ml and the hydrolysis time (4, 8, 12) hours. After the coconut husk undergoes physical and chemical treatment using 10% NaOH, there is a decrease in lignin levels from 44% to 14% and there is an increase in cellulose levels from 24% to 38%, and the use of a cellulase enzyme volume of 2 ml with a hydrolysis time of 4 hours was more optimal with a glucose level of 0.32%.

scholarly journals Obtaining of micro- and nanoscale copper compounds by plasma-chemical treatment of solutions

2014 ◽  
Vol 5 (3(19)) ◽  
pp. 19
Author(s):  
Ольга Вячеславовна Сергеева
Keyword(s):  
Chemical Treatment ◽  
Plasma Chemical ◽  
Copper Compounds
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