Catalysis in Industry最新文献_第5页

Alkoxycarbonylation of Unsaturated Substrates of Plant Origin in the Presence of Palladium Catalysts as a Route to Synthesize Ester Products 钯催化剂作用下植物源不饱和基质的烷氧基羰基化作为合成酯类产品的途径

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Catalysis in Industry Pub Date : 2023-12-26 DOI: 10.1134/S2070050423040104

N. T. Sevostyanova, S. A. Batashev

{"title":"Alkoxycarbonylation of Unsaturated Substrates of Plant Origin in the Presence of Palladium Catalysts as a Route to Synthesize Ester Products","authors":"N. T. Sevostyanova, S. A. Batashev","doi":"10.1134/S2070050423040104","DOIUrl":"10.1134/S2070050423040104","url":null,"abstract":"The synthesis of esters by the alkoxycarbonylation of unsaturated substrates of plant origin opens up the possibility of switching to alternative raw materials and provides a solution to a number of problems facing the chemical industry: resource saving, waste minimization, and increasing the environmental safety and efficiency of the processes being implemented. However, to date, only the production of methyl methacrylate, which includes ethylene methoxycarbonylation as one of the stages, has been implemented in industry. The aim of this review is to systematize and analyze the data published since 2010 in the field of ester synthesis by the alkoxycarbonylation of plant substrates under mild conditions. It has been found that, over the indicated period, the alkoxycarbonylation of pentenoic and undecenoic acids, oleic, linoleic, and erucic acids or their esters, and terpene compounds—citronellic acid and β-myrcene—has been implemented. It has been shown that high yields of linear products and selectivities for them under mild conditions have been provided mostly by using homogeneous palladium–diphosphine catalysts. The results of these studies open up broad prospects for the implementation of processes that are new for industry, namely, the alkoxycarbonylation of substrates of plant origin for synthesizing chemical products of high priority, primarily polymers.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 4","pages":"333 - 349"},"PeriodicalIF":0.7,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139053602","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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Experience in Creating and Using the GTL Technology in Russia 在俄罗斯创建和使用GTL技术的经验

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030078

A. P. Savost’yanov, R. E. Yakovenko

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Development of a Method and Technique for Analysis of Acetone Hydrogenation Products by Gas Chromatography 丙酮加氢产物气相色谱分析方法与技术的发展

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S207005042303011X

E. Yu. Yakovleva, Mural Nurbol, G. A. Bukhtiyarova

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Spherical TiO2/Cr2O3 Composites Synthesized with the Use of Ion-Exchange Resins as a Template 以离子交换树脂为模板制备球形TiO2/Cr2O3复合材料

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030029

A. A. Buzaev, A. O. Rogacheva, T. V. Larina, E. V. Dokuchits, O. S. Khalipova, V. V. Zharkova

{"title":"Spherical TiO2/Cr2O3 Composites Synthesized with the Use of Ion-Exchange Resins as a Template","authors":"A. A. Buzaev, A. O. Rogacheva, T. V. Larina, E. V. Dokuchits, O. S. Khalipova, V. V. Zharkova","doi":"10.1134/S2070050423030029","DOIUrl":"10.1134/S2070050423030029","url":null,"abstract":"Two samples of TiO2/Cr2O3 composites are synthesized in the form of spherical grains via the stagewise thermal treatment of ion-exchange resins preliminarily saturated with chromium Cr3+ cations and dichromate ({text{C}}{{{text{r}}}_{{text{2}}}}{text{O}}_{7}^{{2 - }}) anions, and then coated with a film-forming titania-based solution. Calcination temperature regimes are set on the basis of a thermal analysis and determined by the type of ion-exchange resin selected as a template. The synthesized composites are generally composed of the α-Cr2O3 phase, and the content of the TiO2 phase is less than 4%. The composites replicate the spherical shape of grains for the initial ion-exchange resins with sizes of 370 to 660 µm. The grains of the sample based on kaolinite adsorbing Cr3+ ions have a porous structure with bulbs and cavities. The anion-exchange resin-based sample grains have kinks and cracks over their surfaces due to a nonuniform distribution of adsorbed ({text{C}}{{{text{r}}}_{{text{2}}}}{text{O}}_{7}^{{2 - }}) anions in the initial anion-exchange resin. The composites exhibit catalytic activity in the deep p-xylene oxidation reaction. The cation-exchange resin-based sample is more active, due apparently to the smaller accessible titania surfaces in the anion-exchange resin-based sample as a result of the formation of a solid Ti3+ solution in α-Cr2O3.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 3","pages":"313 - 322"},"PeriodicalIF":0.7,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4193544","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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Role of Interstitial Solid Solutions in the Formation of the Active Component of Supported Palladium Catalysts for the Selective Hydrogenation of Acetylene to Ethylene 间隙固溶体在乙炔选择性加氢制乙烯负载型钯催化剂活性组分形成中的作用

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S207005042303008X

D. A. Shlyapin, D. V. Glyzdova, T. N. Afonasenko, V. L. Temerev, A. V. Lavrenov

引用次数: 0

Solid-Phase Synthesis of Nickel–Molybdenum Catalysts for Propylene Metathesis under Mechanical Activation 机械活化下丙烯分解镍钼催化剂的固相合成

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030042

O. A. Knyazheva, O. N. Baklanova, E. A. Buluchevskii, A. B. Arbuzov, M. V. Trenikhin, T. R. Karpova, M. A. Moiseenko, N. N. Leont’eva, A. V. Lavrenov

{"title":"Solid-Phase Synthesis of Nickel–Molybdenum Catalysts for Propylene Metathesis under Mechanical Activation","authors":"O. A. Knyazheva, O. N. Baklanova, E. A. Buluchevskii, A. B. Arbuzov, M. V. Trenikhin, T. R. Karpova, M. A. Moiseenko, N. N. Leont’eva, A. V. Lavrenov","doi":"10.1134/S2070050423030042","DOIUrl":"10.1134/S2070050423030042","url":null,"abstract":"Solid-phase synthesis of aluminum–molybdenum (Al–Mo) and aluminum–nickel–molybdenum (Al–Ni–Mo) model composites as part of propylene metathesis catalysts has been conducted under mechanical activation. The structure of Al–Mo and Al–Ni–Mo model composites has been studied by X-ray diffraction analysis, high-resolution transmission electron microscopy, infrared spectroscopy, and diffuse reflectance electron spectroscopy (DRES). The DRES method has shown the presence of isolated monomeric and oligomeric molybdate compounds in the Al–Ni–Mo model composites. Granular metathesis catalysts have been synthesized by molding the Al–Mo and Al–Ni–Mo model composites with aluminum hydroxide and subsequent calcining. It has been shown that the highest activity in the propylene metathesis reaction is exhibited by an aluminum–molybdenum catalyst containing 2.6 wt % Ni, 13.0 wt % Mo, and 32.7 wt % Al. At a process temperature of 200°C, a pressure of 0.1 MPa, and a propylene feed space velocity of 1 h–1, in the presence of this catalyst, the propylene conversion achieves 33.7%; this fact makes this catalyst promising for practical applications. At the same time, the weight fraction of ethylene and butenes in the reaction product composition is 17.5 and 71.3%, respectively.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 3","pages":"278 - 287"},"PeriodicalIF":0.7,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4190221","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

New Ways of Controlling the Molecular Mass Characteristics and Distribution of Branches for Polyethylene Synthesized over Supported Catalysts Containing Fe(II) Bis(imino)pyridyl and Ni(II) Bis(imine) Complexes 控制含 Fe(II) 双(亚氨基)吡啶和 Ni(II) 双(亚胺)络合物的支撑催化剂合成聚乙烯的分子质量特征和支链分布的新方法

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030066

M. A. Mats’ko, N. V. Semikolenova, V. A. Zakharov

{"title":"New Ways of Controlling the Molecular Mass Characteristics and Distribution of Branches for Polyethylene Synthesized over Supported Catalysts Containing Fe(II) Bis(imino)pyridyl and Ni(II) Bis(imine) Complexes","authors":"M. A. Mats’ko, N. V. Semikolenova, V. A. Zakharov","doi":"10.1134/S2070050423030066","DOIUrl":"10.1134/S2070050423030066","url":null,"abstract":"Data on the ways of controlling the molecular structure of polyethylene (PE) synthesized over the supported catalysts containing Fe(II) bis(imino)pyridyl (LFeCl2) and Ni(II) bis(imine) (*LNiBr2) complexes immobilized on a silica gel modified with aluminum oxide (SiO2(Al)) are presented. Linear polyethylene with different molecular masses and a controllable molecular weight distribution (MWD) is synthesized by varying the conditions of polymerization on LFeCl2/SiO2(Al) catalysts. Ethylene homopolymerization over *LNiBr2/SiO2(Al) catalysts results in branched polyethylene with molecular mass and thermophysical characteristics close to that of low density polyethylene synthesized by ethylene copolymerization with α-olefins over supported metallocene and Ziegler type catalysts. A way for designing supported bicomponent catalysts containing LFeCl2 and *LNiBr2 complexes immobilized on an SiO2(Al) support for the targeted synthesis of polyethylene with a required molecular structure is proposed. Examples are given for the synthesis of linear polyethylene with a bimodal MWD on a bicomponent supported catalyst containing two different LFeCl2 complexes, the synthesis of polyethylene with a controllable distribution of branches on a bicomponent catalyst prepared via the immobilization of LFeCl2 and *LNiBr2 complexes on a SiO2(Al) support, and the modification of a chromium oxide catalyst with LFeCl2 complex for controlling the molecular mass and branch distributions in synthesized polyethylene are given.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 3","pages":"267 - 277"},"PeriodicalIF":0.7,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4193540","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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Silica Gel as a Sorbent and Catalyst Support: Improvement of Technologies and Search for Alternative Production Routes 硅胶作为吸附剂和催化剂载体:技术改进和替代生产途径的探索

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030054

G. V. Mamontov, E. V. Evdokimova, A. S. Savel’eva, A. V. Zubkov, N. N. Mikheeva, I. N. Mazov, A. S. Knyazev

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Isomerization of Hexane and Heptane Mixtures in the Presence of Platinum-Containing Tungstated Zirconia Catalysts 含铂钨氧化锆催化剂存在下正己烷和庚烷混合物的异构化

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Catalysis in Industry Pub Date : 2023-09-04 DOI: 10.1134/S2070050423030091

M. D. Smolikov, V. A. Shkurenok, L. I. Bikmetova, N. N. Leont’eva, A. V. Lavrenov

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Erratum to: Deactivation and Regeneration of a Zeolite-Containing Cobalt Catalyst in a Fischer–Tropsch Synthesis Reactor 费托合成反应器中含钴沸石催化剂的失活和再生