ASTM D4607-94 PDF

Buy ASTM D() Standard Test Method for Determination of Iodine Number of Activated Carbon from SAI Global. ASTM Designation: D Standard Test Method for. Determination of Iodine Number of Activated Carbon. 1. Scope. This test method covers the. Standard. Standard number, ASTM-D ; ASTM-D Title, Standard Test Method for Determination of Iodine Number of Activated.

Author: Kajind Moogugis
Country: French Guiana
Language: English (Spanish)
Genre: Medical
Published (Last): 16 November 2009
Pages: 428
PDF File Size: 6.22 Mb
ePub File Size: 4.55 Mb
ISBN: 931-1-99213-461-2
Downloads: 80113
Price: Free* [*Free Regsitration Required]
Uploader: Tojajind

The amount of constituents removed and the adsorptive capacity is calculated from a Freundlich isotherm ASTM D, Standard solutions of methylene blue were used for calibration. Clean beakers were used to collect the filtrates after discarding the first 30 cm 3 portions of the filtrates.

Enter your personal account email address to request a password reset: Add to Alert PDF. Adsorption potentials of Cinnarium schweinfurthi nut shell activated carbon.

However, this technology presents several disadvantages because amine scrubbing requires high energy to regenerate solvent and special management from especial officer.

Resources Digital Transformation may be defined d4067-94 a number of different ways by analysts or enterprise software vendors. Journal of Environmental Science and Technology Volume 1 3: Are you sure you want to empty the cart? Surface and bulk chemistry of charcoal obtained by vacuum pyrolysis of bark: In porcelain crucibles, 0. In addition, the authors also acknowledge the financial support from the graduate d46607-94, Chulalongkorn University, Thailand.

This standard is also available to be included in Standards Subscriptions.

Iodine Adsorption American standard test method ASTM D, for determination of iodine number of activated carbon was used to assess the porosity of the active carbons prepared. Adsorption characteristic of activated carbon obtained from corncobs. ASTM grants you a license as follows: Each filtrate was titrated with 0. The major objective of this study was to investigate the adsorption characteristics of active carbons prepared by pyrolysis of bagasse, sorghum and millet straws in ortho phosphoric acid.


The pictures were shown in Fig. Phosphoric acid functions as a dehydrating agent and inhibits the formation of tar Su et al. Enter your account email address to request a password reset: Preparing activated carbon from various nutshells by chemical activation with K 2 CO 3. Each flask was stoppered and swirled gently until the carbon was completely wetted. The test is based on a three-point adsorption isotherm. The adsorption with solid sorbents is one of the most appropriate options.

The iodine numbers which indicate the adsorptive capacities for low 4d607-94 weight substances wereand mg g -1 for bagasse, sorghum and millet straws, respectively.

Next, activated carbon impregnated chitosan was carried out to adsorb CO 2. The carbon precursors are pyrolysed in presence of the chemical activating agent such as phosphoric acid H 3 PO 4zinc chloride ZnCl 2potassium hydroxide KOH etc. D467-94 of heavy metals from aqueous solution by adsorption onto chemically modified pumpkin Telfairia occidentalis D4607-9 seed husk.

ScienceCentral Journals

The electronic c4607-94 may not be reproduced in any way. Fast attainment of sorption equilibrium was skewed towards high initial concentrations of methylene blue. The success of the adsorption process depends on the performance of adsorbents in both equilibria and kinetics Das et al.

Standards Subsctiption may be the perfect solution. Consequence of chitosan treating on the adsorption of humic acid by granular activated carbon. You can obtain this standard from ASTM using the following link: You may delete a document from your Alert Profile at any time. It is also recommended that the standard iodine solution should have an iodide to iodine weight ratio of 1.

C4607-94 carbon dosages used were estimated as follows: The impregnation ration, which was controlled by varying the proportion of H 3 PO 4 used for activation, had a strong influence on the d4607-49 of active carbon.


Need ASTM D , (Iodine number) Standard – ASTM (testing materials) Code Issues – Eng-Tips

Need more than one copy? Standard test method for determination of iodine number of activated carbon. Proximate and ultimate analyses of bagasse, sorghum and millet straws as precursors for active carbons.

Similar effects of the phosphoric acid impregnation on d46079-4 development have been reported for other cellulosic precursors Baquero et al.

Sodium thiosulphate was used as a desorbing reagent because it is not adsorbed by active carbon and its strength does not influence the amount of iodine desorbed ASTM D, Adsorption isotherm of methylene blue on active carbons from sorghum straw.

High contents of volatile matter Generally, the quality of active carbons is evaluated in terms of their adsorptive characteristics and superficial area, using different analytical methods for liquid and gas phase adsorption El-Hendawy et al. The commercial activated carbon will be modified with impregnation in chitosan to increase the efficiency for CO 2 adsorption because chitosan solution will be ligand for aastm of adsorbate [ 4 ].

The amount of methylene blue x adsorbed per unit weight of carbon m was expressed as the difference between the amount of methylene blue before carbon treatment and amount of methylene blue after carbon treatment, per unit weight of carbon.

ASTM D() – Standard Test Method for Determination of Iodine Number of Activated Carbon

The adsorption isotherm for iodine on active carbons has been reported to follow Langmurian isotherm Bhatia et al. The larger size e4607-94 methylene blue makes it suitable for estimating mesoporosity. Register for a trial account. The most important sources of CO 2 emission is the human activities.