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Journal of Siberian Federal University. Chemistry最新文献

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Structural and Functional Composition of Humic Acids Isolated from Soils of Natural and Urbanized Territories of the European Far North and the Arctic 从欧洲远北和北极自然和城市化地区土壤中分离的腐植酸的结构和功能组成
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2022-03-01 DOI: 10.17516/1998-2836-0267
Tatiana A. Korelskaya
{"title":"Structural and Functional Composition of Humic Acids Isolated from Soils of Natural and Urbanized Territories of the European Far North and the Arctic","authors":"Tatiana A. Korelskaya","doi":"10.17516/1998-2836-0267","DOIUrl":"https://doi.org/10.17516/1998-2836-0267","url":null,"abstract":"The structural and functional composition of humic acids in natural and urbanized areas of the European Far North and the Arctic has been studied using modern physical and chemical research methods. It is shown that the content of fulvic acids for most of the studied soils is higher than humic acids; in soils, the process of humus formation is humate (replantozem, pelozem and humus-peat soil), humate-fulvate (turf soil, culturozem and urbanozem) and fulvate type (gleezem and lithozem); macromolecules of humic acids and himatomelanic acids of the studied soils are predominantly aliphatic in nature, with a high proportion of aromatic fragments, and FA have an aromatic structure. In addition, humus acids of natural soils located in more Northern regions are characterized by a high content of oxygen-containing functional groups compared to humus acids preparations of natural soils located to the South (turf and peat)","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86903147","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}
引用次数: 0
Solid Solutions in Aluminum Electrolytes with the Participation of LiF 锂离子参与下铝电解液中的固溶体
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2022-03-01 DOI: 10.17516/1998-2836-0268
Yulia N. Zaitseva
{"title":"Solid Solutions in Aluminum Electrolytes with the Participation of LiF","authors":"Yulia N. Zaitseva","doi":"10.17516/1998-2836-0268","DOIUrl":"https://doi.org/10.17516/1998-2836-0268","url":null,"abstract":"The paper presents the investigation of the solid solutions formation in the fluoride system Na5Al3F14-Na3AlF6-K3AlF6 with the addition of LiF. Two local regions were under consideration. The first case concerns the possibility of potassium and sodium cations replacing with lithium in the elpasolite (K2NaAlF6) when LiF is added to the electrolyte. In the second, the effect of lithium fluoride on the chiolite (Na5Al3F14) was studied. The investigation was motivated by the need to control the composition of the electrolyte during the electrolytic production of aluminum. The electrolyte samples were obtained from the initial fluorides under laboratory conditions. Determination of crystal-chemical details of the structure of solid solutions was carried out by the method of full-profile analysis (Rietveld method) on multiphase polycrystalline samples. It was found that the addition of LiF in the structure of elpasolite is accompanied by a gradual substitution of lithium for sodium with the formation, ultimately, of the K2LiAlF6 phase with the lattice parameter a = 8.0779 Å. Potassium is not subject to substitution. No dissolution of LiF in the structure of cryolite (Na3AlF6) was found. It was shown that chiolite does not form solid solutions with LiF upon crystallization","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85498173","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}
引用次数: 1
Sorption of Copper Ions from the Nitric Acid Solution of Electrolytic Refining of Silver with Using Chelating Resin Axionit BPA 双酚a螯合树脂对电解炼银硝酸溶液中铜离子的吸附
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2022-03-01 DOI: 10.17516/1998-2836-0270
S. Aleynikov
{"title":"Sorption of Copper Ions from the Nitric Acid Solution of Electrolytic Refining of Silver with Using Chelating Resin Axionit BPA","authors":"S. Aleynikov","doi":"10.17516/1998-2836-0270","DOIUrl":"https://doi.org/10.17516/1998-2836-0270","url":null,"abstract":"The article considers a sorption method for extracting copper ions from a model nitric acid solution based on a solution of electrolytic refining of silver with using sorbents with bis-picolylamine functional groups: Dowex M-4195 and AXIONIT BPA. The possibility of extracting copper to residual concentrations in the solution of less than 10 mg/l is shown. The working capacity of both samples under batch conditions, as well as the dynamic exchange capacity and the full dynamic exchange capacity under dynamic сonditions (column test), are determined. The effect of the flow rate of the solution into the column on the kinetics of the sorption of copper ions on AXIONIT BPA is shown. The possibility of desorption of copper with a solution of 3 %, 5 % NH4OH was investigated, and a two-stage scheme of desorption of copper was tested: 5 % and 10 % with a solution of ammonium hydroxide","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87960419","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}
引用次数: 2
Determination of Rare Earth Elements in Plant Samples by ICP-MS with Microwave Digestion 微波消解ICP-MS法测定植物样品中的稀土元素
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0259
A. Kravchenko, I. Nikolaeva, S. V. Palesskiy
{"title":"Determination of Rare Earth Elements in Plant Samples by ICP-MS with Microwave Digestion","authors":"A. Kravchenko, I. Nikolaeva, S. V. Palesskiy","doi":"10.17516/1998-2836-0259","DOIUrl":"https://doi.org/10.17516/1998-2836-0259","url":null,"abstract":"Method of microwave digestion using HNO3, HCl and HF in MARS‑5 system followed by ICP-MS analysis is proposed for determination of rare earth elements (REE) in plant materials. Limits of detection are 0.0001–0.001 ppm and allow for determination of all REE in certified reference materials Tr‑1, LB‑1 and EK‑1 and new reference material NSP‑1, relative standard deviations are lower than 13 %.Influence of HF addition during microwave digestion in UltraWAVE system on the ICP-MS analysis of REE in plant materials depending on silica content is studied. Necessity of HF addition during microwave digestion for better REE recoveries is shown for plant materials with Si contents exceeding 0.1 %","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76214854","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}
引用次数: 0
Prospects and Development of Research of Composite Elastomer Materials 复合弹性体材料研究的展望与发展
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0255
Bekhzod Yoqubov, A. Ibadullaev, Dilnora Q. Yoqubova, E. Teshabaeva
{"title":"Prospects and Development of Research of Composite Elastomer Materials","authors":"Bekhzod Yoqubov, A. Ibadullaev, Dilnora Q. Yoqubova, E. Teshabaeva","doi":"10.17516/1998-2836-0255","DOIUrl":"https://doi.org/10.17516/1998-2836-0255","url":null,"abstract":"The aim of this work is to study the effect of new modified ingredients on the complex of properties of composite elastomeric materials. It was found that the introduction of modified ingredients into the composition of elastomeric compositions enhances interfacial interaction at the «rubber-filler» interface and the formation of additional bonds between rubber macromolecules and functional groups, as a result of which an improvement in the complex of properties of the compositions is observed. The introduction of modified carbon into the composition of elastomeric compositions enhances interfacial interaction at the «rubber-filler» interface and the formation of additional bonds between rubber macromolecules and functional groups of the oligomer, as a result of which an improvement in the complex of properties of the compositions is observed. The technology of purification of mineral fillers from metal oxides has been developed. A sufficiently high degree of purification by this method is due to the fact that in the process of temperature exposure at 950 K, iron ions from the paramagnetic state (d-form Fe2O3) pass into ferromagnetic (r-form Fe3O4). Feasibility and prospects of using modified fillers, both mineral and organic, in the formulations of rubber compounds for the production of various types of rubber products","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74179144","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}
引用次数: 17
Catalytic oxidation of Cedar Bark (Pinus Sibirica) with Oxygen to Vanillin and Pulp 雪松皮氧催化氧化制香兰素和木浆的研究
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0254
Dmitry O. Vigul, V. Tarabanko, Yulia V. Chelbina, V. Levdansky
{"title":"Catalytic oxidation of Cedar Bark (Pinus Sibirica) with Oxygen to Vanillin and Pulp","authors":"Dmitry O. Vigul, V. Tarabanko, Yulia V. Chelbina, V. Levdansky","doi":"10.17516/1998-2836-0254","DOIUrl":"https://doi.org/10.17516/1998-2836-0254","url":null,"abstract":"The catalytic oxidation of natural and pre-extracted cedar bark (Pinus Sibirica) by molecular oxygen is studied. Tannins were shown to inhibit the formation of vanillin while oxidizing the bark. The yields of vanillin are 5–7 wt.% based on bark lignin, which is of 3–4 times lower compared to the results of wood oxidation. The presence of tannins in the raw material complicates the lignin analysis and can overestimate the results twice","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81480388","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}
引用次数: 0
The Physicochemical Analysis of Bayerite Al(OH)3 → γ-Al2O3 Transformation Bayerite Al(OH)3→γ-Al2O3相变的理化分析
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0260
N. V. Filatova, N. Kosenko, Artyom S. Artyushin
{"title":"The Physicochemical Analysis of Bayerite Al(OH)3 → γ-Al2O3 Transformation","authors":"N. V. Filatova, N. Kosenko, Artyom S. Artyushin","doi":"10.17516/1998-2836-0260","DOIUrl":"https://doi.org/10.17516/1998-2836-0260","url":null,"abstract":"It was obtained aluminum hydroxide in the form of bayerite by precipitation with ammonia. The precipitation pH was found by the potentiometric titration. Based on the data of thermal, X‑ray diffraction and IR‑analysis it was identified the sequence of bayerite transitions up to 800 °C. The study of nitrogen adsorption- desorption allowed to determine a specific surface, a volume, and dimensions of pores for boehmite and γ- Al2O3 as 135±2 and 238±10 m2/g; 0.38 and 0.51 cm3/g; 1.7 and 3.8 nm, relatively. The value of effective activation energy for boehmite →γ- Al2O3 transition ((136±5) kJ/mol) was found by means of non- isothermal method (by Avrami equation)","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86320800","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}
引用次数: 0
Development of Comprehensive Analysis of Pyrolysis Products for Lignocellulose Raw Materials and Sludge Sediments by Chromatographic Methods 木质纤维素原料和污泥沉淀物热解产物色谱综合分析研究进展
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0240
M. Shashkov, Yulia S Sotnikova, P. A. Dolgushev, M. Alekseeva
{"title":"Development of Comprehensive Analysis of Pyrolysis Products for Lignocellulose Raw Materials and Sludge Sediments by Chromatographic Methods","authors":"M. Shashkov, Yulia S Sotnikova, P. A. Dolgushev, M. Alekseeva","doi":"10.17516/1998-2836-0240","DOIUrl":"https://doi.org/10.17516/1998-2836-0240","url":null,"abstract":"This paper presents a study of the pyrolysis products organic raw materials (bio-oil and sludge sediments of treatment facilities) by chromatographic methods. A feature of the work is to optimize the sample preparation procedure by fractionating the pyrolysis products. Using the method of gel permeation chromatography, molecular weight distribution of pyrolysis products was assessed. Determination of the water content in these objects (by Karl Fischer titration) was used to assess the possibility of their direct analysis by gas chromatography. A sample of sludge pyrolysis and several fractions obtained from a bio-oil sample were analyzed. By the method of two-dimensional gas chromatography, where a selfdeveloped column based on an ionic liquid was used as the first measurement column, the pyrolysate of sludge sediments and the ether fraction of bio-oil were analyzed. The obtained chromatograms and quantitative results are presented","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77617101","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}
引用次数: 2
Composition and Structure of Ethanol-Lignins of Coniferous and Deciduous Wood and Products of their Catalytic Telomerization with 1,3-Butadiene 针叶树和落叶木乙醇木质素的组成、结构及其与1,3-丁二烯催化端粒化的产物
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0261
M. Lutoshkin, F. Rataboul, L. Djakovitch, Y. Malyar, B. Kuznetsov
{"title":"Composition and Structure of Ethanol-Lignins of Coniferous and Deciduous Wood and Products of their Catalytic Telomerization with 1,3-Butadiene","authors":"M. Lutoshkin, F. Rataboul, L. Djakovitch, Y. Malyar, B. Kuznetsov","doi":"10.17516/1998-2836-0261","DOIUrl":"https://doi.org/10.17516/1998-2836-0261","url":null,"abstract":"The composition and structure of ethanol-lignins of coniferous (abies, pine) and deciduous (aspen, birch) wood and products of their catalytic telomerization with 1,3-butadiene has been studied with use of the methods 31P-NMR, gel-permeation chromatography, scanning electron microscopy and elemental analysis. Data on the nature and content of hydroxyl groups in ethanol-lignins were obtained using phosphorylation of lignins with 2-chloro‑4,4,5,5,-tetramethyl‑1,3,2-dioxaphospholane.The studied lignins differ from each other in the content of aliphatic, phenolic and carboxyl groups. The total content of hydroxyl groups increases in the series of ethanol-lignins: birch < aspen < pine < abies. For the modification of ethanol-lignins, the reaction of catalytic telomerization with 1,3-butadiene was used at 70 °C and 90 °C in the presence of a complex of palladium (II) diacetate with the sodium salt of triphenylphosphine trisulfate. By comparing the number of aliphatic, phenolic and carboxyl OH- groups in the initial and telomerized ethanol-lignins, it was found that only aliphatic and phenolic hydroxyl groups participate in the telomerization reaction. Telomerization of ethanol-lignins with 1,3-butadiene increases their average molecular weight and reduces polydispersity. The morphology of telomerized and initial samples of ethanol-lignins varies significantly","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78472475","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}
引用次数: 0
Properties of Granular Nitrogen-Containing Fertilizers Based on Pine Sawdust and Studying its Effectiveness in Growing Wheat in the Agricultural Zone of the Krasnoyarsk Territory 克拉斯诺亚尔斯克地区松木木屑颗粒含氮肥料的特性及其在小麦种植中的效果研究
IF 0.4
Journal of Siberian Federal University. Chemistry Pub Date : 2021-12-01 DOI: 10.17516/1998-2836-0264
V. Romanov, N. Kozulina, Tatiana A. Snitkova, A. Vasilenko, M. A. Mikhailets, M. Belash, E. V. Veprikova, A. A. Sobolev, O. Taran, A. Lipshin
{"title":"Properties of Granular Nitrogen-Containing Fertilizers Based on Pine Sawdust and Studying its Effectiveness in Growing Wheat in the Agricultural Zone of the Krasnoyarsk Territory","authors":"V. Romanov, N. Kozulina, Tatiana A. Snitkova, A. Vasilenko, M. A. Mikhailets, M. Belash, E. V. Veprikova, A. A. Sobolev, O. Taran, A. Lipshin","doi":"10.17516/1998-2836-0264","DOIUrl":"https://doi.org/10.17516/1998-2836-0264","url":null,"abstract":"A method for producing granular fertilizers based on pine sawdust containing ammonium nitrate is proposed. Physico-chemical properties of sawdust and fertilizers containing 20.0 wt.% nitrogen were studied. The effect of pretreatment of pine sawdust with 1 % wt. with a water solution of NaOH on the properties of granular fertilizers was explored. The results of a field trial on the cultivation of wheat varieties «Krasnoyarskaya 12» revealed the growth-stimulating effect of nitrogen-containing granular fertilizers in comparison with an unfertilized background. A more effective influenceon wheat yield of granular fertilizer fabricated from pine sawdust after their treatment with 1 % wt. with a water solution of NaOHThe achieved effect on 1,9 c/ha higher in comparison with thefertilizer based on original sawdust","PeriodicalId":16999,"journal":{"name":"Journal of Siberian Federal University. Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82983835","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}
引用次数: 1
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