EXPERIMENTAL STUDIES ON THE EFFECTS OF PROCESS PARAMETERS ON GRANULE PROPERTIES IN A CONICAL HIGH SHEAR GRANULATOR

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RANJBARIAN SIMA; FARHADI FATHOLLAH

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2013 | Volume:32 | Issue:3 (67) Page(s): 115-125

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Title

EXPERIMENTAL STUDIES ON THE EFFECTS OF PROCESS PARAMETERS ON GRANULE PROPERTIES IN A CONICAL HIGH SHEAR GRANULATOR

Author(s)

RANJBARIAN SIMA | FARHADI FATHOLLAH | Issue Writer Certificate

Keywords

HIGH SHEAR GRANULATION

IMPELLER SPEED

BINDER DISTRIBUTION

SPAN

Abstract

Experimental work was carried out to investigate the influence of IMPELLER SPEED, granulation time, binder mass and their interactions on granule size distribution, mean size and binder content distribution in a conical high shear granulator. It was observed that the response of HIGH SHEAR GRANULATION to changes in process parameters varies significantly from one operating condition to another. For all quantities of binder, the granule mean size increased with time at lower IMPELLER SPEEDs, while the opposite trend was observed at higher impeller velocities. For long mixing times, increasing IMPELLER SPEED decreased the granule average size constantly; whereas for other durations, an increase in the mean size followed by a decrease was observed across ascending IMPELLER SPEEDs. It was also found out that variations of the SPAN of granule size distribution can be utilized to indicate the dominant rate process. Coalescence which was prevailing at lower IMPELLER SPEEDs, was limited by attrition, breakage or shattering at higher impeller velocities. Binder-solid ratio of granules showed a continuous increase across size at lower IMPELLER SPEEDs and a maximum at middle size range for higher impeller velocities. Binder content distribution showed different trends with time at different operating conditions. Furthermore, increasing IMPELLER SPEED limited the domain of binder content variations and made the granule binder-solid ratio to be much closer to theoretical value.

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APA: Copy

RANJBARIAN, SIMA, & FARHADI, FATHOLLAH. (2013). EXPERIMENTAL STUDIES ON THE EFFECTS OF PROCESS PARAMETERS ON GRANULE PROPERTIES IN A CONICAL HIGH SHEAR GRANULATOR. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 32(3 (67)), 115-125. SID. https://sid.ir/paper/613999/en

Vancouver: Copy

RANJBARIAN SIMA, FARHADI FATHOLLAH. EXPERIMENTAL STUDIES ON THE EFFECTS OF PROCESS PARAMETERS ON GRANULE PROPERTIES IN A CONICAL HIGH SHEAR GRANULATOR. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2013;32(3 (67)):115-125. Available from: https://sid.ir/paper/613999/en

IEEE: Copy

SIMA RANJBARIAN, and FATHOLLAH FARHADI, “EXPERIMENTAL STUDIES ON THE EFFECTS OF PROCESS PARAMETERS ON GRANULE PROPERTIES IN A CONICAL HIGH SHEAR GRANULATOR,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 32, no. 3 (67), pp. 115–125, 2013, [Online]. Available: https://sid.ir/paper/613999/en

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