PMID- 33387759
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20210315
LR  - 20210315
IS  - 1873-2828 (Electronic)
IS  - 1350-4177 (Print)
IS  - 1350-4177 (Linking)
VI  - 72
DP  - 2021 Apr
TI  - Ultrasonic-assisted production of precipitated calcium carbonate particles from 
      desulfurization gypsum.
PG  - 105421
LID - S1350-4177(20)31725-9 [pii]
LID - 10.1016/j.ultsonch.2020.105421 [doi]
LID - 105421
AB  - This study aimed to investigate the effect of ultrasonic application on the 
      production of precipitated calcium carbonate (PCC) particles from desulfurization 
      gypsum via direct mineral carbonation method using conventional and venturi tube 
      reactors in the presence of different alkali sources (NaOH, KOH and NH(4)OH). The 
      venturi tube was designed to determine the effect of ultrasonication on PCC 
      production. Ultrasonic application was performed three times (before, during, and 
      after PCC production) to evaluate its exact effect on the properties of the PCC 
      particles. Scanning electron microscope (SEM), X-ray diffraction (XRD), Atomic 
      force microscope (AFM), specific surface area (SSA), Fourier transform infrared 
      spectrometry (FTIR), and particle size analyses were performed. Results revealed 
      the strong influence of the reactor types on the nucleation rate of PCC 
      particles. The presence of Na(+) or K(+) ions in the production resulted in 
      producing PCC particles containing only calcite crystals, while a mixture of 
      vaterite and calcite crystals was observed if NH(4)(+) ions were present. The use 
      of ultrasonic power during PCC production resulted in producing cubic calcite 
      rather than vaterite crystals in the presence of all ions. It was determined that 
      ultrasonic power should be conducted in the venturi tube before PCC production to 
      obtain PCC particles with superior properties (uniform particle size, nanosized 
      crystals, and high SSA value). The resulting PCC particles in this study can be 
      suitably used in paint, paper, and plastic industries according to the ASTM 
      standards.
CI  - Copyright (c) 2020 The Author(s). Published by Elsevier B.V. All rights reserved.
FAU - Altiner, Mahmut
AU  - Altiner M
AD  - Department of Mining Engineering, Cukurova University, Adana 01330, Turkey. 
      Electronic address: maltiner@cu.edu.tr.
FAU - Top, Soner
AU  - Top S
AD  - Department of Materials Science and Nanotechnology Engineering, Abdullah Gul 
      University, Kayseri 38080, Turkey.
FAU - Kaymakoglu, Burcin
AU  - Kaymakoglu B
AD  - Department of Materials Engineering, Adana Alparslan Turkes Science and 
      Technology University, Adana 01250, Turkey.
LA  - eng
PT  - Journal Article
DEP - 20201230
PL  - Netherlands
TA  - Ultrason Sonochem
JT  - Ultrasonics sonochemistry
JID - 9433356
SB  - IM
PMC - PMC7803856
OTO - NOTNLM
OT  - Calcite
OT  - Gypsum
OT  - Precipitated calcium carbonate
OT  - Ultrasonication
OT  - Vaterite
OT  - Venturi tube
COIS- The authors declare that they have no known competing financial interests or 
      personal relationships that could have appeared to influence the work reported in 
      this paper.
EDAT- 2021/01/03 06:00
MHDA- 2021/01/03 06:01
PMCR- 2020/12/30
CRDT- 2021/01/02 20:09
PHST- 2020/10/19 00:00 [received]
PHST- 2020/12/03 00:00 [revised]
PHST- 2020/12/04 00:00 [accepted]
PHST- 2021/01/03 06:00 [pubmed]
PHST- 2021/01/03 06:01 [medline]
PHST- 2021/01/02 20:09 [entrez]
PHST- 2020/12/30 00:00 [pmc-release]
AID - S1350-4177(20)31725-9 [pii]
AID - 105421 [pii]
AID - 10.1016/j.ultsonch.2020.105421 [doi]
PST - ppublish
SO  - Ultrason Sonochem. 2021 Apr;72:105421. doi: 10.1016/j.ultsonch.2020.105421. Epub 
      2020 Dec 30.