Ultrasound-assisted negative pressure crystallization of ammonium sulfate: Synergistic effects and intensification mechanisms

Ultrasound-assisted negative pressure crystallization of ammonium sulfate: Synergistic effects and intensification mechanisms

PDF

Qian Zhang^a^,^b, Guang Fu^c, Shuo Xu^b, Dongbin Wang^a^,^b, Thiquynhxuan Le^a^,^b^,^*, Libo Zhang^a^,^b^,^**

Particuology | 2026, 115 : 401 - 414

Less

Particuology | 2026, 115: 401-414

• •

Ultrasound-assisted negative pressure crystallization of ammonium sulfate: Synergistic effects and intensification mechanisms

Full

Qian Zhang^a^,^b, Guang Fu^c, Shuo Xu^b, Dongbin Wang^a^,^b, Thiquynhxuan Le^a^,^b^,^*, Libo Zhang^a^,^b^,^**

Affiliations

^aState Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China

^bFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China

^cYunnan Chihong Zinc and Germanium Co., Ltd., Qujing, 655011, China

Published: 2026-08-10 doi: 10.1016/j.partic.2026.06.003

Outline

Abstract

Less

Although negative pressure crystallization of ammonium sulfate can mitigate low yield and long processing time in atmospheric pressure crystallization, it still faces challenges in enhancing crystallization efficiency and achieving a uniform crystal size distribution. To address these issues, this study proposed an ultrasound-assisted negative pressure crystallization technique. Under optimized conditions (pH = 7, 300 rpm, 80 ℃, 45 min, 180 W, 0.03 MPa), the yield increased by 27.64 g and the direct yield improved by 36.80% compared with negative pressure crystallization. XRD and FTIR confirmed that this process maintained the crystal structure of ammonium sulfate while enhancing crystallinity. Mechanistic studies revealed that, compared with negative pressure crystallization, the synergistic effect of ultrasound narrowed the metastable zone width (MSZW) by approximately 33%, lowering the nucleation energy barrier. Ultrasound cavitation generated numerous bubbles, providing heterogeneous nucleation sites and localized supersaturation driving forces, which jointly accelerated nucleation and reduced the solid-liquid transition time by 35.7%. Furthermore, compared with the negative pressure crystallization system, the ultrasonic negative pressure crystallization reduced the solution viscosity by 5.7%, enhancing mass transfer and crystal growth. Ultimately, ultrasound-assisted negative pressure crystallization produced crystals with more uniform size and more regular morphology, offering important theoretical insights for improving ammonium sulfate crystallization processes.

Key words

Ultrasound / Negative pressure crystallization / Synergistic intensification / Ammonium sulfate

Cite this Article

Qian Zhang, Guang Fu, Shuo Xu, Dongbin Wang, Thiquynhxuan Le, Libo Zhang. Ultrasound-assisted negative pressure crystallization of ammonium sulfate: Synergistic effects and intensification mechanisms[J]. Particuology, 2026 , 115 : 401 -414 . DOI: 10.1016/j.partic.2026.06.003

Full Text

Less

Funding

Less

National Foreign Experts Program of China(H20250152)
Yunnan Province Key R&D Plan(202403AK140009)
Yunnan Fundamental Research Project(202501BN070001-010)

Appendix

Less

Year 2026 volume 115 Issue 0

PDF

Cite this Article

BibTeX

Article Info

doi: 10.1016/j.partic.2026.06.003

Receive Date：2026-04-07
Online Date：2026-08-20
Published：2026-08-10

Article Data

Affiliations

History

Received：2026-04-07
Revised：2026-05-06
Accepted：2026-06-06

Funding

National Foreign Experts Program of China(H20250152)

Yunnan Province Key R&D Plan(202403AK140009)

Yunnan Fundamental Research Project(202501BN070001-010)

Affiliations

^aState Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China

^bFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China

^cYunnan Chihong Zinc and Germanium Co., Ltd., Qujing, 655011, China

Corresponding:

^* State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China. E-mail addresses: quynhxuanlt@kust.edu.cn (T. Le)

^** State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China. zhanglibopaper@126.com (L. Zhang).

References

Share

https://castjournals.cast.org.cn/joweb/partic/EN/10.1016/j.partic.2026.06.003

Share to

Scan QR to access full text

Cite this article

BibTeX

Citations

表12种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

关闭全屏

BibTeX
EndNote
RefWorks
TxT

Articles: Latest Articles; Most Read; Collections

Updates: Events; News; Multimedia

About: About Us

Contact

No. 86 Xueyuan South Road, Haidian District, Beijing

100081

010-62199257

qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House