A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling
A high-efficiency hydrocyclone was designed by response surface methodology to evaluate the recycling of acid hydrolysis residues from titanium dioxide (TiO2) production as a study case. TiO2 is an important product and the world's best white pigment. During its production from ilmenite (FeTiO3...
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doaj-c145b67d075045f28f75a94e502789122020-11-25T04:10:32ZengThe Royal SocietyRoyal Society Open Science2054-57032019-01-016110.1098/rsos.172339172339A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recyclingYanxia XuBo TangXingfu SongJianguo YuA high-efficiency hydrocyclone was designed by response surface methodology to evaluate the recycling of acid hydrolysis residues from titanium dioxide (TiO2) production as a study case. TiO2 is an important product and the world's best white pigment. During its production from ilmenite (FeTiO3) by the sulfuric acid method, the incomplete reaction produces large amounts of residue, which also contain unreacted ilmenite. Large amounts of residue are generally accumulated without any treatment. Hydrocyclone use is regarded as a method for separating and recovering chemicals from process residues by which the unreacted components can be recycled efficiently. However, hydrocyclones designed by conventional procedures may have some limitations regarding classification sharpness. In this paper, numerical experiments and laboratory tests were performed to evaluate the classification sharpness of various hydrocyclone designs. Response surface methodology was used to optimize hydrocyclones with different structural configurations. Based on the response models, a designed hydrocyclone with a high sharpness of classification of particles was constructed. The sharpness of the newly designed hydrocyclone increased from 80.5% to 93.3%. The vortex finder separated approximately 89.9% of the fine particles in impurities, while 51.0% of TiO2 was recycled by the spigot. The hydrocyclone proposed in this paper properly minimizes the risk of environmental pollution caused by TiO2 production and provides a significant estimated cost savings.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.172339hydrocycloneacid hydrolysis residueclassification sharpnessresponse surface methodology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanxia Xu Bo Tang Xingfu Song Jianguo Yu |
spellingShingle |
Yanxia Xu Bo Tang Xingfu Song Jianguo Yu A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling Royal Society Open Science hydrocyclone acid hydrolysis residue classification sharpness response surface methodology |
author_facet |
Yanxia Xu Bo Tang Xingfu Song Jianguo Yu |
author_sort |
Yanxia Xu |
title |
A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
title_short |
A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
title_full |
A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
title_fullStr |
A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
title_full_unstemmed |
A high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
title_sort |
high-efficiency hydrocyclone designed by response surface methodology for acid hydrolysis residue recycling |
publisher |
The Royal Society |
series |
Royal Society Open Science |
issn |
2054-5703 |
publishDate |
2019-01-01 |
description |
A high-efficiency hydrocyclone was designed by response surface methodology to evaluate the recycling of acid hydrolysis residues from titanium dioxide (TiO2) production as a study case. TiO2 is an important product and the world's best white pigment. During its production from ilmenite (FeTiO3) by the sulfuric acid method, the incomplete reaction produces large amounts of residue, which also contain unreacted ilmenite. Large amounts of residue are generally accumulated without any treatment. Hydrocyclone use is regarded as a method for separating and recovering chemicals from process residues by which the unreacted components can be recycled efficiently. However, hydrocyclones designed by conventional procedures may have some limitations regarding classification sharpness. In this paper, numerical experiments and laboratory tests were performed to evaluate the classification sharpness of various hydrocyclone designs. Response surface methodology was used to optimize hydrocyclones with different structural configurations. Based on the response models, a designed hydrocyclone with a high sharpness of classification of particles was constructed. The sharpness of the newly designed hydrocyclone increased from 80.5% to 93.3%. The vortex finder separated approximately 89.9% of the fine particles in impurities, while 51.0% of TiO2 was recycled by the spigot. The hydrocyclone proposed in this paper properly minimizes the risk of environmental pollution caused by TiO2 production and provides a significant estimated cost savings. |
topic |
hydrocyclone acid hydrolysis residue classification sharpness response surface methodology |
url |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.172339 |
work_keys_str_mv |
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