Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-23-2-73-79
A. Levina, M. Fedorova, Y. Zakhodyaeva, A. A. Voshkin
The interfacial distribution of nickel (II) and vanadium (IV) ions in an extraction system based on polyethylene glycolPEG-1500 and sodium nitrate has been studied. Based on obtained experimental data, a functional diagram for the isolation of ions of nickel (II) and vanadium (IV) from a model solution formed after demetallization of crude oil was developed.
{"title":"ON INTERFACIAL DISTRIBUTION OF NICKEL (II) AND VANADIUM (IV) IONS IN SYSTEM BASED ON PEG-1500","authors":"A. Levina, M. Fedorova, Y. Zakhodyaeva, A. A. Voshkin","doi":"10.31044/1684-5811-2022-23-2-73-79","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-2-73-79","url":null,"abstract":"The interfacial distribution of nickel (II) and vanadium (IV) ions in an extraction system based on polyethylene glycolPEG-1500 and sodium nitrate has been studied. Based on obtained experimental data, a functional diagram for the isolation of ions of nickel (II) and vanadium (IV) from a model solution formed after demetallization of crude oil was developed.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80713817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-01DOI: 10.31044/1684-5811-2021-22-10-465-471
Z. Myltykbaeva, A. Anisimov, A. Seisembekova, M. Smaiyl
For the extraction of vanadylporphyrin complexes from oils of the oil-and-gas bearing region «North Buzachi» at 20 °C, N-N-Dimethylformamide (DMF) was used as an extractant, which shows a good isolating ability of porphyrin complexes into fractions with increasing the polarity. In the visible region the electronic spectra of metalporphyrin concentrates isolated from oil differ slightly and have two intense absorption bands at 573 nm and 534 nm, corresponding to vanadylporphyrin complexes, and at 550 nm, related to nickel porphyrins. According to the calculation method of graphical extrapolation, using the Lambert-Ber formula, content of nickel porphyrins in the extract is 11 times less than vanadylporphyrins. In the FT-IR spectra of porphyrinates, strong deformation vibrations of C-H-pyrrole fragments were detected in the absorption area 809.27 and 3024.79 cm-1, which indicate the presence of vanadium (IV) porphyrinate in the isolated fraction.
采用n - n -二甲基甲酰胺(DMF)作为萃取剂，在20℃条件下对北布扎奇油区的钒基卟啉络合物进行萃取，结果表明，随着极性的增加，卟啉络合物的分离能力较好。在可见区，从油中分离出的超卟啉精矿的电子光谱略有不同，在573 nm和534 nm处有两个强吸收带，对应于钒基卟啉配合物，在550 nm处与镍卟啉有关。根据图解外推的计算方法，采用Lambert-Ber公式，提取液中镍卟啉的含量比钒卟啉的含量少11倍。在卟啉酸酯的FT-IR光谱中，在809.27和3024.79 cm-1的吸收区检测到c - h -吡咯碎片强烈的变形振动，表明分离组分中存在钒(IV)卟啉酸酯。
{"title":"DETERMINATION OF CONCENTRATION AND EXTRACTION OF VANADYLPORPHYRIN COMPLEXES FROM OIL OF OIL-AND-GAS REGION «NORTH BUZACHI»","authors":"Z. Myltykbaeva, A. Anisimov, A. Seisembekova, M. Smaiyl","doi":"10.31044/1684-5811-2021-22-10-465-471","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-10-465-471","url":null,"abstract":"For the extraction of vanadylporphyrin complexes from oils of the oil-and-gas bearing region «North Buzachi» at 20 °C, N-N-Dimethylformamide (DMF) was used as an extractant, which shows a good isolating ability of porphyrin complexes into fractions with increasing the polarity. In the visible region the electronic spectra of metalporphyrin concentrates isolated from oil differ slightly and have two intense absorption bands at 573 nm and 534 nm, corresponding to vanadylporphyrin complexes, and at 550 nm, related to nickel porphyrins. According to the calculation method of graphical extrapolation, using the Lambert-Ber formula, content of nickel porphyrins in the extract is 11 times less than vanadylporphyrins. In the FT-IR spectra of porphyrinates, strong deformation vibrations of C-H-pyrrole fragments were detected in the absorption area 809.27 and 3024.79 cm-1, which indicate the presence of vanadium (IV) porphyrinate in the isolated fraction.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73140891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.31044/1684-5811-2021-22-7-318-325
E. Lokshin
{"title":"Extraction methods of rare-earth elements from extraction phosphoric acid","authors":"E. Lokshin","doi":"10.31044/1684-5811-2021-22-7-318-325","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-7-318-325","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88213016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-01DOI: 10.31044/1684-5811-2021-22-5-197-204
E. Lokshin
Investigation of titanium sorption by sulfocationite from acidic solutions and its desorption from sulfocationite
硫酸根矿对酸性溶液中钛的吸附及解吸研究
{"title":"Investigation of titanium sorption by sulfocationite from acidic solutions and its desorption from sulfocationite","authors":"E. Lokshin","doi":"10.31044/1684-5811-2021-22-5-197-204","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-5-197-204","url":null,"abstract":"Investigation of titanium sorption by sulfocationite from acidic solutions and its desorption from sulfocationite","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81034184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-01DOI: 10.31044/1684-5811-2021-22-2-60-68
N. P. Midukov, V. Kurov, A. S. Smolin
The article presents the results of new views of fiber bonding in a multilayer composite material. New views of fiber bonding based on the obtaining a cross-section by ion beam cut cutting with further quantitative assessment of the main factors, namely the combined effect of hydrogen bonds of mechanical coupling forces and Van-Der-Waals forces, nature of fibrous, mutual arrangement of fibrous, uniformity of fibro distribution, presence of impurities. The combination of effects of the above forces is determined by the length of fibro contacts and uniformity of distribution of contact lines in the cross section of the multilayer fibrous material. In study, area of cut and uniformity of distribution of area of cut fibrous are determined, chalk distribution is estimated at different technologies of preparation of fibrous material. According to the obtained data, mechanical and surface indices of fibrous material are analyzed.
{"title":"New views of fiber bonding in a multilayer composite material","authors":"N. P. Midukov, V. Kurov, A. S. Smolin","doi":"10.31044/1684-5811-2021-22-2-60-68","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-2-60-68","url":null,"abstract":"The article presents the results of new views of fiber bonding in a multilayer composite material. New views of fiber bonding based on the obtaining a cross-section by ion beam cut cutting with further quantitative assessment of the main factors, namely the combined effect of hydrogen bonds of mechanical coupling forces and Van-Der-Waals forces, nature of fibrous, mutual arrangement of fibrous, uniformity of fibro distribution, presence of impurities. The combination of effects of the above forces is determined by the length of fibro contacts and uniformity of distribution of contact lines in the cross section of the multilayer fibrous material. In study, area of cut and uniformity of distribution of area of cut fibrous are determined, chalk distribution is estimated at different technologies of preparation of fibrous material. According to the obtained data, mechanical and surface indices of fibrous material are analyzed.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74936927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.31044/1684-5811-2021-22-1-36-43
M. A. Kuzin, S. Abramov, O. N. Nikitin, S. V. Kuz’min, A. Grachev, A. Zherebtsov, L. M. Zabud‘ko
The method of carbothermic synthesis produced 260 g tablets of mixed nitrides of uranium, plutonium, americium and neptunium with a mass fraction of americium 0.61%. For the production of tablets were used uranium oxide manufactured by the water method, as well as plutonium dioxide containing impurities of uranium and americium oxides with a mass of 0.9 g americium, obtained by volumetric crystallization method in a NaCl — 2CsCl melt. Neptunium dioxide and americium oxide were added to the mixture of uranium and plutonium oxides before carbothermic synthesis. The resulting tablets had a density of 11.6-11.9 g / cm3. By methods of gamma-spectrometry, scanning electron microscopy and x-ray microanalysis is showed that the heat treatment of the mixture of the source chemicals - oxides of uranium, plutonium, americium, neptunium with carbon black at a temperature 1600-1500 °C for 72 h (24 h in nitrogen and 48 h in nitrogen-hydrogen atmospheres), and also the subsequent sintering synthesized by the press powders for 48 h at a temperature of 1800°C in nitrogen-hydrogen atmosphere doesn't leads in average to the significant losses of americium.
{"title":"PRODUCTION AND RESEARCH OF TABLETS OF MIXED URANIUM, PLUTONIUM, AMERICIUM AND NEPTUNIUM NITRIDES","authors":"M. A. Kuzin, S. Abramov, O. N. Nikitin, S. V. Kuz’min, A. Grachev, A. Zherebtsov, L. M. Zabud‘ko","doi":"10.31044/1684-5811-2021-22-1-36-43","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-1-36-43","url":null,"abstract":"The method of carbothermic synthesis produced 260 g tablets of mixed nitrides of uranium, plutonium, americium and neptunium with a mass fraction of americium 0.61%. For the production of tablets were used uranium oxide manufactured by the water method, as well as plutonium dioxide containing impurities of uranium and americium oxides with a mass of 0.9 g americium, obtained by volumetric crystallization method in a NaCl — 2CsCl melt. Neptunium dioxide and americium oxide were added to the mixture of uranium and plutonium oxides before carbothermic synthesis. The resulting tablets had a density of 11.6-11.9 g / cm3. By methods of gamma-spectrometry, scanning electron microscopy and x-ray microanalysis is showed that the heat treatment of the mixture of the source chemicals - oxides of uranium, plutonium, americium, neptunium with carbon black at a temperature 1600-1500 °C for 72 h (24 h in nitrogen and 48 h in nitrogen-hydrogen atmospheres), and also the subsequent sintering synthesized by the press powders for 48 h at a temperature of 1800°C in nitrogen-hydrogen atmosphere doesn't leads in average to the significant losses of americium.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78566185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.31044/1684-5811-2021-22-9-427-432
Andrey S. Smirnov, N. A. Gribchenkova, A. S. Alikhanyan
{"title":"Experimental determination of effective areas of effusion openings in Knudsen quartz chambers","authors":"Andrey S. Smirnov, N. A. Gribchenkova, A. S. Alikhanyan","doi":"10.31044/1684-5811-2021-22-9-427-432","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-9-427-432","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86007305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.31044/1684-5811-2021-22-4-176-182
А. Semenov, Lit Llc, B. R. Kulagin, E. V. Bogatyreva, A. S. Shimanets, Nust MISiS
{"title":"EXTRACTION PRODUCTION OF «A» GRADE LANTHANUM NITRIC ACID SOLUTION","authors":"А. Semenov, Lit Llc, B. R. Kulagin, E. V. Bogatyreva, A. S. Shimanets, Nust MISiS","doi":"10.31044/1684-5811-2021-22-4-176-182","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-4-176-182","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83755428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.31044/1684-5811-2021-22-10-447-457
N. Prorokova, T. Kumeeva, I. Kholodkov, V. M. Bouznik
The control possibility assessment of the water-repellent properties of polyester (PEF) fabric when its hydrophobizing with tetrafluoroethylene (TFE) telomers due to texturing by applying nanosized SiO2 is discussed. It was established that the use of a compound containing SiO2 nanoparticles and TFE telomers for hydrophobization of PEF fabrics led to an increase in roughness of the coatings, however, a decrease in contact angles of fabric and an increase in its water absorption were observed. This is due to an additional increase in hardness of the coating based on TFE telomers, when combined with SiO2 nanoparticles.
{"title":"Control of hydrophobic properties of polyester fabric coatings deposited with use of polytetrafluoroethylene telomers and silicon dioxide nanoparticles","authors":"N. Prorokova, T. Kumeeva, I. Kholodkov, V. M. Bouznik","doi":"10.31044/1684-5811-2021-22-10-447-457","DOIUrl":"https://doi.org/10.31044/1684-5811-2021-22-10-447-457","url":null,"abstract":"The control possibility assessment of the water-repellent properties of polyester (PEF) fabric when its hydrophobizing with tetrafluoroethylene (TFE) telomers due to texturing by applying nanosized SiO2 is discussed. It was established that the use of a compound containing SiO2 nanoparticles and TFE telomers for hydrophobization of PEF fabrics led to an increase in roughness of the coatings, however, a decrease in contact angles of fabric and an increase in its water absorption were observed. This is due to an additional increase in hardness of the coating based on TFE telomers, when combined with SiO2 nanoparticles.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75335844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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