دراسة خواص البنية النسيجية للخامات السورية الحاملة للزيوليت

Authors

  • إبراهيم راهب

Abstract

The texture properties of the four samples of Syrian ore containing zeolite were studied by the analysis of the adsorption-desorption data of nitrogen at 77K. The samples are taken from tell-assis site.

The adsorption isotherms for all samples belong to IV type of BDDT classification. Surface areas determined using the BET liner equation, and the standard isotherm methods,i.e, t-plots, α-methods. These methods showed a good agreement. The values of the surface area for samples are (66-100)m2/g.

The samples contain pores of different shapes and types. They have mesopores mainly (30-38)Å, and the microporosity are (20-25)%. The values of the characteristic energy of adsorption are in the range of 11.6 -16.4 kJ/mol.

تمت دراسة خواص البنية النسيجية لأربع عينات من الخامات الطبيعية في سوريا والحاملة للزيوليت من منطقة تل السيس, وهي من مواقع مختلفة وأعماق مختلفة, وتحمل الأرقام  TS-7, TS-9, TS-14, TS-18

تم تحديد السطح النوعي لهذه العينات بطريقة BET وبطرائق المناحي القياسية  t-method, -method α, وتم أيضا تحديد توزع المسام. استخدمت تقنية امتزاز النتروجين عند الدرجة 77K بواسطة جهاز امتزاز حجمي آلي مبرمج من نوع Gemini 2375.

تبين من خلال الدراسة أن العينات تملك سطحا نوعيا يتراوح بين (66-100 m2 /g), وتظهر قيم السطح النوعي المحسوبة وفق الطرائق المختلفة تطابقا جيدا. إن العينات المدروسة تحتوي بشكل أساسي على مسامات من نوع ميزو, حيث يتراوح نصف قطر المسام لها بين (30-38)Å,وتتراوح نسبة المسام الدقيقة وفق طريقة DR بين (20-25)%, وأن قيمة الطاقة المميزة للإمتزاز تتراوح بين (11.6 – 16.4) kJ/mol.

 

Downloads

Published

2018-12-03

How to Cite

1.
راهب إ. دراسة خواص البنية النسيجية للخامات السورية الحاملة للزيوليت. TUJ-BA [Internet]. 2018Dec.3 [cited 2024May10];25(3). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4941

Issue

Vol. 25 No. 3 (2003): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

1 2 > >>