Selective catalytic synthesis of bio-based high value chemical of benzoic acid from xylan with Co2MnO4@MCM-41 catalyst

In this paper, mesoporous MCM-41 and Al-MCM-41(Si/Al =100, 70, 40, 10, 5) molecular sieves were synthesized by direct hydrothermal process and characterized by various analytical techniques. Their catalytic performance in the synthesis of dioctyl phthalate (DOP) was also studied. The results show that while keeping the mesostructure of Al-MCM-41(Si/Al=100, 70, 40), increasing Al content can increase the acidity and so forth effectively improve the catalytic activity. But too much aluminum incorporation can destroy the structure of Al-MCM-41(Si/Al=10). The Al-MCM-41 molecular sieves with proper Si/Al ratios have good catalytic activity and stability in DOP synthesis. When Al-MCM-41(40) was used as the catalyst, A high PA conversion of 98.45% can be reached in 4 h. After being reused for five times, Al-MCM-41(40) still remains good catalytic activity.

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Catalytic synthesis of 4-methyl-2-(α-methyl benzyl) phenol over Fe-Al-MCM-41 for extraction-separation rubidium from brine

Revue Roumaine de Chimie ◽

10.33224/rrch/2020.65.2.03 ◽

2020 ◽

Vol 65 (2) ◽

pp. 141-147

Author(s):

Zhenhua FENG ◽

◽

Lianying AN ◽

Zhenggen HUANG ◽

Xianyin ZHAO ◽

...

Keyword(s):

Catalytic Synthesis ◽

Extraction Separation ◽

Mcm 41

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Catalytic Synthesis of Bi- and Teraryls in Aqueous Medium with Palladium(II) Complexes of 2-(Pyridine-2-ylmethylsulfanyl)benzoic Acid

European Journal of Inorganic Chemistry ◽

10.1002/ejic.201500178 ◽

2015 ◽

Vol 2015 (9) ◽

pp. 1638-1638

Author(s):

Om Prakash ◽

Hemant Joshi ◽

Kamal Nayan Sharma ◽

Alpesh Kumar Sharma ◽

Ajai K. Singh

Keyword(s):

Benzoic Acid ◽

Aqueous Medium ◽

Catalytic Synthesis

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Green synthesis of 4-methoxybenzophenone from anisole and benzoic acid catalyzed by tungstophosphoric acid supported on MCM-41

Research on Chemical Intermediates ◽

10.1007/s11164-014-1772-9 ◽

2014 ◽

Vol 41 (9) ◽

pp. 6731-6739 ◽

Cited By ~ 3

Author(s):

Huanhuan Zhang ◽

Jie Han ◽

Fei Tian ◽

Qingzhi Chen ◽

Chunzheng Wang ◽

...

Keyword(s):

Benzoic Acid ◽

Green Synthesis ◽

Tungstophosphoric Acid ◽

Acid Catalyzed ◽

Mcm 41

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Mapping of Guest Localization in Mesoporous Silica Particles by Solid-State NMR and Ab Initio Modeling: New Insights into Benzoic Acid and p-Fluorobenzoic Acid Embedded in MCM-41 via Ball Milling

The Journal of Physical Chemistry C ◽

10.1021/acs.jpcc.1c01675 ◽

2021 ◽

Author(s):

Katarzyna Trzeciak ◽

Sławomir Kaźmierski ◽

Kacper Drużbicki ◽

Marek J. Potrzebowski

Keyword(s):

Solid State ◽

Mesoporous Silica ◽

Benzoic Acid ◽

Ab Initio ◽

Ball Milling ◽

Solid State Nmr ◽

Silica Particles ◽

Ab Initio Modeling ◽

Mcm 41

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TEM characterization of proton-exchanged LiNbO3 optical waveguides

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010014395x ◽

1986 ◽

Vol 44 ◽

pp. 480-481

Author(s):

W. E. Lee

Keyword(s):

Refractive Index ◽

Benzoic Acid ◽

Optical Waveguides ◽

Total Internal Reflection ◽

Index Of Refraction ◽

Optical Measurements ◽

Lithium Ions ◽

Wide Channel ◽

Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

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