☆ 4.5 Article

Ionic liquids as modifier for the oligomerization of a-olefins to reactive poly (alpha-olefins) via traditional AlCl3 catalyst

MOLECULAR CATALYSIS (2023)

Related references

Note: Only part of the references are listed.

Article Chemistry, Multidisciplinary

Chain Walking in the AlCl3 Catalyzed Cationic Polymerization of α-Olefins

Amene Rahbar et al.

Summary: The basic mechanisms of 1-decene polymerization using a safer AlCl3 catalyst were revealed. The use of toluene solvent resulted in the synthesis of low molecular weight, low viscosity, and highly branched polyalphaolefins. NMR analysis confirmed the presence of various short chain branches and toluene rings in the final polymer chains. Molecular modeling confirmed the ease of carbocation isomerization and chain transfer mechanisms in toluene medium, supporting the experimental observations.

CHEMPLUSCHEM (2023)

Add to Collection

Article Polymer Science

Eutectic solvents containing Al-compounds: new benign alternatives to BF3 co-initiator in producing low viscosity polyalphaolefin oils

Zahra Izadi et al.

Summary: This study assessed the replacement of AlCl3 with other Al-based compounds or an environmentally friendly deep eutectic solvent (DES) in alpha-olefin oligomerization. The results showed that using DES as the main component of the initiating system not only reduces the need for hazardous and corrosive Al compounds, but also favors the production of low viscosity PAO oils, which have a significant share in the PAO market.

POLYMER BULLETIN (2023)

Add to Collection

Article Engineering, Chemical

Dual-site eutectic ionic liquids based microemulsion for boosting selective dimerization of isobutene

Jian Chen et al.

Summary: Ionic liquids (ILs) with strong interaction between acidic sites can improve the selectivity of butene oligomerization catalysts. Formation of eutectic ILs by adding alcohol can enhance butene solubility and catalytic performance. Moreover, construction of microemulsion by adding emulsifiers can enhance efficient contact between butene and catalyst. The strategies of employing dual-site eutectic ILs as the catalyst and microemulsion formation can achieve high conversion and target product selectivity simultaneously.

CHEMICAL ENGINEERING SCIENCE (2023)

Add to Collection

Article Energy & Fuels

Application of alkali-treated MCM-22 zeolite in catalytic 1-decene oligomerization reaction

Fuqing Gong et al.

Summary: It was found that treating MCM-22 zeolite with NaOH significantly enhanced its catalytic activity in the oligomerization of 1-decene. Increasing the NaOH treatment time resulted in higher conversion rate and dimer selectivity. After being treated with a 0.1 mol/L NaOH solution for 7 hours, the conversion increased from 68% to 76% and dimer selectivity increased from 49% to 61%. The NaOH-treated MCM-22 zeolite showed improved catalytic performance even after regeneration by roasting at 550 degrees C.

FUEL (2023)

Add to Collection

Article Chemistry, Physical

Clay-supported acidic ionic liquid as an efficient catalyst for conversion of carbohydrates to 5-hydroxymethylfurfural

Samahe Sadjadi et al.

Summary: Halloysite nanoclay was used as a natural support for an acidic ionic liquid immobilization. The resulting catalyst exhibited improved Bronsted acidity and high recyclability. It effectively promoted the conversion of various carbohydrates to a valuable product under mild reaction conditions.

JOURNAL OF MOLECULAR LIQUIDS (2023)

Add to Collection

Article Multidisciplinary Sciences

Elongation and branching of α-olefins by two ethylene molecules

Thomas Dietel et al.

Summary: Alpha-olefins are crucial for the production of plastics, pharmaceuticals, and chemicals. However, the selective synthesis of alpha-olefins from ethylene is limited. This study presents a catalytic reaction that combines an alpha-olefin with two ethylene molecules using a highly active and stable molecular titanium catalyst.

SCIENCE (2022)

Add to Collection

Article Chemistry, Physical

An efficient initiator system containing AlCl3 and supported ionic-liquid for the synthesis of conventional grade polyisobutylene in mild conditions

Saleh Yousefi et al.

Summary: Ionic liquid based systems were used to facilitate the cationic polymerization of isobutylene. The AlCl3/S-IL initiator system was found to be a safer and greener alternative to the industrially used BF3 system. The microstructure and properties of the synthesized polyisobutylene were analyzed and compared, and DFT calculations were performed to investigate the catalyst interaction and sequestering in different systems.

JOURNAL OF MOLECULAR LIQUIDS (2022)

Add to Collection

Article Chemistry, Physical

Tribological performance and lubrication mechanism of new gemini quaternary phosphonium ionic liquid lubricants

Qiangliang Yu et al.

Summary: This paper presents the synthesis and characterization of two types of halogen-free ionic liquids, as well as their tribological properties when utilized as neat lubricants for a friction pair under different conditions. The results show that these ILs have high thermal stability, anti-wear properties, and can form a protective film during the friction process, reducing wear and friction.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Add to Collection

Article Chemistry, Physical

Efficient hydro-finishing of polyalfaolefin based lubricants under mild reaction condition using Pd on ligands decorated halloysite

Mahtab Tabrizi et al.

Summary: A novel catalyst was designed and fabricated for efficient hydrofinishing of polyalfaolefin based lubricants, showing excellent activity under mild reaction conditions and recyclability. The catalyst contained tiny Pd nanoparticles homogeneously dispersed on functionalized halloysite, with insignificant Pd leaching and loss of activity over multiple cycles.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

Add to Collection

Article Energy & Fuels

Microstructural study on low viscosity poly-α-olefin oils synthesized via AlCl3/H2O cationic system in the present of xylene and heptane solvents

Amene Rahbar et al.

Summary: The research aims to investigate the synthesis process and characteristics of PAO4 and PAO6 using the AlCl3/solvent system, with results showing that the presence of an optimized amount of xylene allows for the production of PAO with comparable properties to commercial grades.

FUEL (2021)

Add to Collection

Article Chemistry, Applied

1-Decene oligomerization by new complexes bearing diamine-diphenolates ligands: Effect of ligand structure

Ahad Hanifpour et al.

Summary: A series of new titanium (IV) complexes with tetradentate diamine-diphenolates were synthesized, showing high activities in 1-decene oligomerization experiments. The oligomers obtained by Cat3 exhibited the highest isotacticity value. The molecular weight of the obtained oligomers was found to be closely related to the ligand structures.

APPLIED ORGANOMETALLIC CHEMISTRY (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Pd on nitrogen rich polymer?halloysite nanocomposite as an environmentally benign and sustainable catalyst for hydrogenation of polyalfaolefin based lubricants

Sahar Karimi et al.

Summary: By combining computational and experimental studies, a novel nanocomposite was developed using natural materials for hydrofinishing of poly alpha-olefin oils. The resulting catalyst exhibited excellent performance under mild reaction conditions and good recyclability.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2021)

Add to Collection

Article Chemistry, Physical

Comparing tribology properties of halogen-free ionic liquid, halogen-containing ionic liquid, and PAO 10 lubricants for steel-Al2024 friction contact at room temperature and high temperature

Chaoyang Zhang et al.

Summary: The study investigated the corrosion resistance and tribological performance of a halogen-free, N/P-containing ionic liquid as a lubricant. Results showed that the NP-IL exhibited excellent corrosion resistance and reduced-friction and anti-wear effects.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Add to Collection

Article Chemistry, Physical

Production of polyalfaolefin-based lubricants using new (poly)ionic liquid/AlCl3 catalysts as environmentally friendly alternatives to commercial AlCl3 route

Miad Mashayekhi et al.

Summary: By synthesizing new (poly)ionic liquid/AlCl3 catalysts, the dosage of corrosive AlCl3 in polyalphaolefin production has been reduced, resulting in the production of polyalphaolefins with the same KV100 but higher VI values.

APPLIED CATALYSIS A-GENERAL (2021)

Add to Collection

Article Chemistry, Physical

The effect of ionic liquid containing AlCl3 catalytic systems on the microstructure and properties of polyalphaolefin based lubricants

Mahtab Tabrizi et al.

Summary: A new class of ionic liquid containing AlCl3 catalysts was synthesized and used in 1-decene oligomerization to produce PAOs, offering a less-toxic alternative to traditional AlCl3 and BF3 catalysts. Different alkyl chlorides were employed to tune the catalytic efficiency, resulting in PAOs with varying microstructure and flow properties. The use of IL/AlCl3 system with reduced AlCl3 loading and proper selection of IL ligand allowed for control of PAO microstructure, showcasing significant achievements in the suggested catalytic systems.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Market Potential of Industrial Technologies for Production of Synthetic Bases of Motor Oils

I. A. Makaryan et al.

Summary: The review analyzes the research and market potential of modern synthetic bases for motor oils, outlining development trends and prospects. It also provides an evaluation of the current status of the global and Russian motor oil markets and a forecast for future development in the coming years.

RUSSIAN JOURNAL OF GENERAL CHEMISTRY (2021)

Add to Collection

Article Chemistry, Physical

Kinetic Study on Microwave-Assisted Oligomerization of 1-Decene over a HY Catalyst

Snunkhaem Echaroj et al.

Summary: A promising production route for high-quality lubricant base stock involves oligomerizing high molecular-weight olefins in a high energy efficiency system. The study on oligomerization of 1-decene over a HY zeolite catalyst in a microwave-assisted system showed that higher reaction temperatures resulted in increased formation of dimers and trimers. Kinetic models were formulated for the dimerization and trimerization reactions, with apparent activation energies of 70.8 ± 0.8 and 83.6 ± 0.9 kJ/mol, respectively.

CATALYSTS (2021)

Add to Collection

Article Energy & Fuels

Preparation of Lubricant Base Stocks with High Viscosity Index through 1-Decene Oligomerization Catalyzed by Alkylaluminum Chloride Promoted by Metal Chloride

Huaiqi Shao et al.

ENERGY & FUELS (2020)

Add to Collection

Review Chemistry, Multidisciplinary

Nickel Catalyzed Olefin Oligomerization and Dimerization

H. Olivier-Bourbigou et al.

CHEMICAL REVIEWS (2020)

Add to Collection

Article Chemistry, Physical

Selective Trimerization of α-Olefins with Immobilized Chromium Catalyst for Lubricant Base Oils

Jun Won Baek et al.

CATALYSTS (2020)

Add to Collection

Article Chemistry, Multidisciplinary

Coordinative chain transfer polymerization of 1-decene in the presence of a Ti-based diamine bis(phenolate) catalyst: a sustainable approach to produce low viscosity PAOs

Ahad Hanifpour et al.

GREEN CHEMISTRY (2020)

Add to Collection

Article Chemistry, Applied

Study of the effect of the ligand structure on the catalytic activity of Pd@ ligand decorated halloysite: Combination of experimental and computational studies

Sevda Dehghani et al.

APPLIED ORGANOMETALLIC CHEMISTRY (2019)

Add to Collection

Article Chemistry, Multidisciplinary

Studies on Poly α-Olefin Synthesis by AlCl3-catalyzed Cationic Polymerization: Concentration Effect on Molecular Weight and Viscosity

Nuri Ohn et al.

BULLETIN OF THE KOREAN CHEMICAL SOCIETY (2019)

Add to Collection

Article Polymer Science

A New Insight into the Comonomer Effect through NMR Analysis in Metallocene Catalysed Propene-co-1-Nonene Copolymers

Qiong Wu et al.

POLYMERS (2019)

Add to Collection

Article Chemistry, Multidisciplinary

Borenium Ionic Liquids as Alternative to BF3 in Polyalphaolefins (PAOs) Synthesis

James M. Hogg et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

Add to Collection

Article Energy & Fuels

Preparation and Characterization of Single-Component Poly-α-olefin Oil Base Stocks

Su Q. Dong et al.

ENERGY & FUELS (2019)

Add to Collection

Article Engineering, Chemical

Effects of Methylaluminoxane Modifications on Tuning the Bis(Imino)Pyridyl Iron-Catalyzed Oligomerization of Ethylene

Jian Ye et al.

POLYMER ENGINEERING AND SCIENCE (2019)

Add to Collection

Article Chemistry, Inorganic & Nuclear

Covalent and Ionic Capacity of MOFs To Sorb Small Gas Molecules

Jordi Poater et al.

INORGANIC CHEMISTRY (2018)

Add to Collection

Article Energy & Fuels

Composition of aquathermolysis catalysts forming in situ from oil-soluble catalyst precursor mixtures

Sergey A. Sitnov et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Add to Collection

Article Energy & Fuels

Molecular Evolution of Asphaltenes from Petroleum Residues after Different Severity Hydroconversion by EST Process

Luciano Montapari et al.

ENERGY & FUELS (2017)

Add to Collection

Review Engineering, Environmental

Environmental Application, Fate, Effects, and Concerns of Ionic Liquids: A Review

Meseret Amde et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

Add to Collection

Article Chemistry, Multidisciplinary

Liquid coordination complexes: a new class of Lewis acids as safer alternatives to BF3 in synthesis of polyalphaolefins

James M. Hogg et al.

GREEN CHEMISTRY (2015)

Add to Collection

Article Chemistry, Inorganic & Nuclear

Comparing Ru and Fe-catalyzed olefin metathesis

Albert Poater et al.

DALTON TRANSACTIONS (2014)

Add to Collection

Article Polymer Science

Metallocene-catalyzed oligomerizations of 1-butene and α-olefins: Toward synthetic lubricants

Huaiqi Shao et al.

EUROPEAN POLYMER JOURNAL (2014)

Add to Collection

Article Engineering, Mechanical

Protic ammonium carboxylate ionic liquid lubricants of OFHC copper

Tulia Espinosa et al.

WEAR (2013)

Add to Collection

Review Engineering, Chemical

Poly-α-olefin-based synthetic lubricants: a short review on various synthetic routes

Saptarshi Ray et al.

LUBRICATION SCIENCE (2012)

Add to Collection

Article Chemistry, Multidisciplinary

Synthesis of Soybean Oil-Based Thiol Oligomers

Jennifer F. Wu et al.

CHEMSUSCHEM (2011)

Add to Collection

Article Chemistry, Physical

NCIPLOT: A Program for Plotting Noncovalent Interaction Regions

Julia Contreras-Garcia et al.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2011)

Add to Collection

Article Chemistry, Multidisciplinary

Revealing Noncovalent Interactions

Erin R. Johnson et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)

Add to Collection

Article Energy & Fuels

A critical approach to viscosity index

Sylvain Verdier et al.

FUEL (2009)

Add to Collection

Article Polymer Science

Fe(acac)n and Co(acac)n Bearing Different Bis(imino)pyridine Ligands for Ethylene Polymerization and Oligomerization

Jingdai Wang et al.

JOURNAL OF APPLIED POLYMER SCIENCE (2009)

Add to Collection

Article Chemistry, Multidisciplinary

Complete Mechanism of σ* Intramolecular Aromatic Hydroxylation through O2 Activation by a Macrocyclic Dicopper(I) Complex

Albert Poater et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

Add to Collection

Article Chemistry, Multidisciplinary

Development of a green process for poly-alpha-olefin based lubricants

GD Yadav et al.

GREEN CHEMISTRY (2002)

Add to Collection

Article Chemistry, Applied

Selective dimerisation of 1-butene in biphasic mode using buffered chloroaluminate ionic liquid solvents - design and application of a continuous loop reactor

P Wasserscheid et al.

CATALYSIS TODAY (2001)

Add to Collection

© Peeref 2019-2024. All rights reserved.