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Author(s): 

Nazari Mohadese

Issue Info: 
  • Year: 

    621
  • Volume: 

    5
  • Issue: 

    4
  • Pages: 

    394-415
Measures: 
  • Citations: 

    0
  • Views: 

    14
  • Downloads: 

    23
Abstract: 

SAPO-34 has emerged as a highly versatile and valuable substance with exceptional capabilities across a wide range of industries, including the production of light olefins. Its high pore volume, excellent shape selectivity, suitable acidity, and superior hydrothermal stability make it a highly sought-after material. AMINES, as structure-directing agents, play a vital role in the synthesis of SAPO-34. A diverse array of AMINES have been proposed for the synthesis of SAPO-34, each with a different templating behavior that can significantly impact the physiochemical properties of the resulting material. This review comprehensively investigates the templating behavior of AMINES based on pivotal factors such as size, shape, alkalinity, polarity, volatility, and environmental friendliness. This article provides a detailed overview of the most popular AMINES used for the SAPO-34 synthesis and exAMINES the effects of the characteristics of each of these AMINES on the properties of synthesized SAPO-34, including crystallinity, purity, acidity, and surface area. This analytical view of the issue can aid in the targeted selection of AMINES for synthesizing SAPO-34 with desired characteristics.

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Author(s): 

Journal: 

ELSEVIER

Issue Info: 
  • Year: 

    2023
  • Volume: 

    -
  • Issue: 

    -
  • Pages: 

    539-548
Measures: 
  • Citations: 

    1
  • Views: 

    13
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2009
  • Volume: 

    6
  • Issue: 

    4
  • Pages: 

    800-807
Measures: 
  • Citations: 

    0
  • Views: 

    372
  • Downloads: 

    394
Abstract: 

The photocatalytic degradation of ortho, para and meta-nitroanilines (ONA, PNA and MNA) was investigated by Ag-TiO2 suspension. The effect of some parameters such as the amount of photocatalyst, irradiation time of UV light, flow rate of O2, pH, and temperature for the Ag-TiO2 photocatalyst was also examined. Degradation of AMINES was small when the reaction was carried out in the absence of photocatalyst, and negligible in the absence of the UV light. Degradation rate of aniline derivatives decreases with increasing O2 in the system. The effect of pH indicated that effective degradation occurred in alkaline conditions. Degradation kinetics of these aromatic AMINES can be described by Langmuir-Hinshelwood equation and shows pseudo-first order law.

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Issue Info: 
  • Year: 

    2008
  • Volume: 

    21
  • Issue: 

    2 (TRANSACTIONS A: BASICS)
  • Pages: 

    113-130
Measures: 
  • Citations: 

    0
  • Views: 

    373
  • Downloads: 

    418
Abstract: 

In this investigation, nucleate boiling heat transfer coefficients were experimentally measured during pool boiling of mixtures, consisting of water/monoethanolamine and water/diethanolamine on a horizontal heating rod, under atmospheric pressure. The experiment was carried out below 205 kW.m-2 heat flux, over a wide range of concentrations. These experiments include, measurement of pool boiling heat transfer coefficient and also visual information. Applicability of the existing main correlations is briefly discussed, with the present experimental data. The major predictions (over and/or under) were observed in some parameter range by the existing correlations. In this investigation the correlations of Fujita et al and Inoue et al, which are structurally the same but have different tuning parameters were modified for this system and the average error has been significantly reduced.

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Issue Info: 
  • Year: 

    2007
  • Volume: 

    4
  • Issue: 

    3
  • Pages: 

    370-374
Measures: 
  • Citations: 

    0
  • Views: 

    657
  • Downloads: 

    215
Abstract: 

An efficient and selective protection of various structurally and electronically divergent aryl and aliphatic AMINES with Cbz-Cl in the presence of a catalytic amount of molecular iodine (2 mol%) in methanol with high yields at ambient temperature is presented.

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Issue Info: 
  • Year: 

    2016
  • Volume: 

    24
Measures: 
  • Views: 

    158
  • Downloads: 

    31
Keywords: 
Abstract: 

THE SELECTIVE PROTECTION OF AMINES HAS ATTRACTED MORE ATTENTION FOR ITS FUNDAMENTALIMPORTANCE AND ALSO FOR ITS ROLE IN MULTISTEP SYNTHESIS [1]. THIS IMPORTANT TRANSFORMATION ISTYPICALLY PERFORMED USING ACETIC ANHYDRIDE ANDFORMIC ACIDIN THE PRESENCE OF EITHER BASIC ORACIDIC CATALYSTS....

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 158

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Issue Info: 
  • Year: 

    2013
  • Volume: 

    20
Measures: 
  • Views: 

    133
  • Downloads: 

    46
Keywords: 
Abstract: 

GUANIDINES CAN SERVE AS BUILDING BLOCKS FOR MANY BIOLOGICALLY RELEVANT COMPOUNDS [1] AND ARE ALSO USEFUL AS CATALYSTS IN ORGANIC SYNTHESIS [2]. AMONG THE REPORTED ROUTES TO MULTISUBSTITUTED GUANIDINES, ADDITION OF AMINES TO CARBODIIMIDES IS UNDOUBTEDLY THE MOST STRAIGHTFORWARD AND ATOM-ECONOMICAL...

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2013
  • Volume: 

    16
Measures: 
  • Views: 

    129
  • Downloads: 

    71
Keywords: 
Abstract: 

AROMATIC IODO COMPOUNDS ARE IMPORTANT SERIES OF MATERIAL IN SYNTHETIC ORGANIC CHEMISTRY. THESE ARE USEFUL FOR PREPARATION OF ORGANOMETALLIC COMPOUNDS AND THEY ARE POTENTIAL INTERMEDIATES FOR THE SYNTHESIS OF PHARMACEUTICAL AND BIOACTIVE MATERIALS [1]. THEY ARE USEFUL IN METAL CATALYZED COUPLING REACTIONS WHICH ARE APPLIED IN THE PREPARATION OF COMPLEX MOLECULES [2]. IN THIS PAPER, THE EFFECTIVE IODINATION OF AROMATIC AMINES IS CARRIED OUT BY A NEW ENVIRONMENT FRIENDLY PROCEDURE BY USING POTASSIUM IODIDE AND POTASSIUM IODATE IN THE PRESENCE OF ACETIC ACID. PRODUCTS WERE FORMED IN HIGH YIELDS AND SHORT REACTION TIME.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2014
  • Volume: 

    22
Measures: 
  • Views: 

    162
  • Downloads: 

    111
Abstract: 

ORGANIC AZIDES ARE USEFUL INTERMEDIATES FOR THE SYNTHESISOF NITROGEN-CONTAINING COMPOUNDS.THEY ARE A WELL-STUDIED CLASS OF COMPOUNDS THAT ARE EASILY PREPARED AND TRANSFORMED INTO A VARIETY OF FUNCTIONAL GROUPS (AMINES, TRIAZENES, AZA-YLIDES AND ISOCYANATES), REACTIVE INTERMEDIATES (NITRENES, NITRENIUM IONS) AND NITROGEN-CONTAINING HETEROCYCLES (AZIRINES, AZIRIDINES, TRIAZOLES, TRIAZOLINES AND AZOLES).AZIDES HAVE SEVERAL DEFENSE AND INDUSTRIAL APPLICATIONS, INCLUDING USE AS PROPELLANTS, EXPLOSIVES, POLYMER CROSS LINKERS, RUBBER VULCANIZATION AGENTS, REACTIVE DYES AND BLOWING AGENTS, AND ARE ALSO FOUND IN BIOLOGICALLY AND PHARMACEUTICALLY ACTIVE COMPOUNDS [1].ORGANICAZIDES ARE USED AS EQUIVALENTS OF PRIMARY AMINESAND ARE EMPLOYED IN THE STAUDINGER REACTION. RECENTLY, A 1, 3-DIPOLE REACTION OF ORGANIC AZIDES ANDTERMINAL ALKYNES WASWIDELY USED AS CLICK REACTION.VARIOUS SYNTHETIC METHODS FOR PREPARATION OF ORGANIC AZIDES HAVE BEEN DEVELOPED. AMONG THEM, THE NUCLEOPHILIC SUBSTITUTION OF ORGANIC COMPOUNDS HAVING A LEAVING GROUP WITH AN AZIDE ION IS A COMMON METHOD [2]. ONE OF THE METHODS FOR SYNTHESIS OF AZIDES IS THE USE OF VINYL ALCOHOL IN PRESENCE OF TMSN3/BF3.OET2 AND SODIUM AZIDE [3] AND USE OF CARBOXYLIC ACIDS USING PH2PCL2/I2 AND SODUMAZIDE [4]. IN THIS WORK, INITIALLY, WE HAVE CONVERTED PRIMARY AMINES TO DIAZONIUM SALTS USING NANO2 AND P2O5/SAWDUST. THEN DIAZONIUM SALTS WERE REACTED WITH SODIUM AZIDE FOR PREPARATION OF ARYL OR ALKYL AZIDES AT ROOM TEMPERATURE.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

GALGANO F. | SUZZI G. | FAVATI F.

Issue Info: 
  • Year: 

    2001
  • Volume: 

    36
  • Issue: 

    -
  • Pages: 

    153-160
Measures: 
  • Citations: 

    1
  • Views: 

    110
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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