Results 1 to 10 of about 7,111 (212)

Regarding Bioanalysis Lasting a Few Minutes: Automated Cooling-SPME and Fast-GC for Urinary 2-Phenyl-2-Propanol Monitoring [PDF]

Toxics
An innovative SPME head space GC–MS method, in cooling mode, using a fully automated routine, was developed to detect 2-phenyl-2-propanol, a representative urinary metabolite of cumene.
Stefano Dugheri, Niccolò Fanfani, Giovanni Cappelli, Antonio Marigliano, Elisabetta Bucaletti, Donato Squillaci, Ilaria Rapi, Lorenzo Venturini, Giulia Pizzella, Sara Manetta, Alfonso Pavone, Michele Secchi, Iacopo Rainaldi, Nicola Mucci   +13 more
doaj   +2 more sources

Inhibited Oxidation of Hydrocarbons in the Presence of Nitrogen, Phosphorus, Selenium, and Sulfur-Containing Heterocyclic Compounds [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2023
With the expansion of the scope of lubricant oils and fuels, the requirements for their performance properties are increasing. One of the performance characteristics of these petroleum products is their resistance to oxidation.
Vagif Farzaliyev, Irada Rzayeva, Afsun Sujayev, Lyubov Sobenina, Elena Schmidt, Nina Gusarova, Svetlana Malysheva, Ol’ga Petrova, Boris Trofimov   +8 more
doaj   +1 more source

Principles of creating a digital twin prototype for the process of alkylation of benzene with propylene based on a neural network

Тонкие химические технологии, 2023
Objectives. To identify the principles of creating digital twins of an operating technological unit along the example of the process of liquid-phase alkylation of benzene with propylene, and to establish the sequence of stages of formation of a digital ...
K. G. Kichatov, T. R. Prosochkina, I. S. Vorobyova   +2 more
doaj   +1 more source

Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid

Molecules, 2022
Efficient removal of cumene from gaseous streams and recovery of its derivatives was accomplished using a MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent.
Dandan Zhao, Yuheng Liu, Xiaolong Ma, Jinjin Qian, Zichuan Ma   +4 more
doaj   +1 more source

Synthesis of tert-amylbenzene for side-chain alkylation of cumene catalyzed by a solid superbase

Green Processing and Synthesis, 2021
The side-chain alkylation of cumene and ethylene over a solid superbase catalyst K/KOH/γ-Al2O3 is investigated. The effects of the reaction temperature, pressure, and time on the conversion of cumene and selectivity of tert-amylbenzene (TAB) are ...
Zhou Xin, Gao Ge, He Guangxiang, Guo Xiaoyan, Jin Haibo, Ma Lei   +5 more
doaj   +1 more source

Para-tert-butylcumene synthesis

Тонкие химические технологии, 2021
Objectives. This study describes a new approach to obtain para-tert-butylcumene by alkylation of cumene with isobutylene in the presence of catalysts, such as Amberlyst 36 Dry, KU-2-8, aluminum chloride, and tert-butyl alcohol and concentrated sulfuric ...
E. M. Yarkina, E. A. Kurganova, A. S. Frolov, G. N. Koshel, T. N. Nesterova, V. A. Shakun, S. A. Spiridonov   +6 more
doaj   +1 more source

Experimental investigation of benzene alkylation in benzene cut by propylene over ZSM-5 zeolite as catalyst [PDF]

شیمی کاربردی روز, 2014
Alkylation of benzene content in benzene cut produced by Iranian petrochemical company over ZSM-5 zeolite as catalyst was investigated in three phase reactor. In this work, the effects of operating temperatures (140, 170 and 200°C) and benzene/propylene
Jafar Mahmoudi, Mohammad Nader Lotfollahi, Ali Haghighi Asl1   +2 more
doaj   +1 more source

Selective oxidation of cumene into 2-phenyl-2-propanol and acetophenone over activated carbon supported Co1.5PW12O40 material

Materials Research Express, 2020
This article reports the oxidation of cumene by H _2 O _2 in the presence of CO _2 . It describes the role played by carbon dioxide on the course of the reaction.
Naaser A Y Abduh, Tahani Al-Garni, Abdullah Al Kahtani, Ahmed Aouissi   +3 more
doaj   +1 more source

Investigation of multi-walled carbon nanotubes catalytic activity by means of the model aerobic oxidation reaction [PDF]

Journal of the Serbian Chemical Society
This study investigates the synthesis of multi-walled carbon nanotubes (MWCNTs) via chemical vapor deposition (CVD) using propane gas and evaluates their catalytic efficiency in oxidation reactions.
Mustafayeva Narmin, Zeynalov Eldar, Huseynov Asgar, Nagiyev Yagub, Nadiri Mehpara, Maharramova Matanat   +5 more
doaj   +1 more source

Selective electro-oxidation of cumene utilizing a flow reactor equipped with diamond electrodes

Current Research in Green and Sustainable Chemistry, 2023
Although oxidation of benzylic C(sp3)−H bonds is an important process for synthesizing biologically active compounds, the reactions generically require hazardous reagents, catalysts, and harsh conditions.
Shogo Nihongi, Riyako Matsuoka, Tsuyoshi Saitoh, Yasuaki Einaga, Takashi Yamamoto   +4 more
doaj   +1 more source