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Separation and Rectification of Chloroacetyl Chloride from TiCl4. Processes (Basel) 2021. [DOI: 10.3390/pr9020287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Titanium tetrachloride (TiCl4) is an important intermediate material for the preparation of titanium products. The organic impurities in TiCl4 are easily accumulated during the production of titanium sponges due to the problems of imperfect detection methods and the lack of effective control methods, resulting in a poor quality of sponge titanium. Among all impurities, chloroacetyl chloride (CAC) is the most important in TiCl4. Herein, the determination of the CAC content in TiCl4 solution, with a low detection limit of 0.633 ppm, was established by the standard addition method using Fourier transform infrared (FTIR) spectrometry. This test method presented good repeatability, excellent accuracy, and moderate precision. Furthermore, the influencing factors of CAC separation in the continuous rectification process, including the heating power (the ratio of total heating power to feed rate), reflux temperature, top tower pressure, and feed temperature were optimized based on an orthogonal experimental design. The experimental data demonstrated that the average CAC removal rate reached 78.94% ± 1.00% under the optimal distillation conditions, with 72.21% of the CAC removed via the off-gas system. Therefore, excellent control of the negative pressure of the tail gas is highly desirable for the removal of CAC impurities.
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Kwon H, Oh KC, Choi Y, Chung YG, Kim J. Development and application of machine learning‐based prediction model for distillation column. INT J INTELL SYST 2021. [DOI: 10.1002/int.22368] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hyukwon Kwon
- Green Materials and Processes R&D Group Korea Institute of Industrial Technology Ulsan Republic of Korea
- School of Chemical and Biomolecular Engineering Pusan National University Busan Republic of Korea
| | - Kwang Cheol Oh
- Green Materials and Processes R&D Group Korea Institute of Industrial Technology Ulsan Republic of Korea
| | - Yeongryeol Choi
- Green Materials and Processes R&D Group Korea Institute of Industrial Technology Ulsan Republic of Korea
- Department of Chemical and Biomolecular Engineering Yonsei University Seoul Republic of Korea
| | - Yongchul G. Chung
- School of Chemical and Biomolecular Engineering Pusan National University Busan Republic of Korea
| | - Junghwan Kim
- Green Materials and Processes R&D Group Korea Institute of Industrial Technology Ulsan Republic of Korea
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Udugama IA, Kirkpatrick R, Yu W, Gernaey KV, Young BR, Bayer C. Separation of middle boiling trace compounds by distillation: An investigation of practical implications of complex column arrangements on an industrial methanol distillation case study. ASIA-PAC J CHEM ENG 2020. [DOI: 10.1002/apj.2588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Isuru A. Udugama
- Process and Systems Engineering Center (PROSYS), Department of Chemical and Biochemical Engineering Technical University of Denmark Kongens Lyngby Denmark
- Department of Chemical and Materials Engineering University of Auckland Auckland New Zealand
| | - Robert Kirkpatrick
- Department of Chemical and Materials Engineering University of Auckland Auckland New Zealand
| | - Wei Yu
- Department of Chemical and Materials Engineering University of Auckland Auckland New Zealand
| | - Krist V. Gernaey
- Process and Systems Engineering Center (PROSYS), Department of Chemical and Biochemical Engineering Technical University of Denmark Kongens Lyngby Denmark
| | - Brent R. Young
- Department of Chemical and Materials Engineering University of Auckland Auckland New Zealand
| | - Christoph Bayer
- Department of Process Engineering TH Nuernberg Nuernberg Germany
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A hybrid batch distillation/membrane process for high purification part 1: Energy efficiency and separation performance study for light impurities removal. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116678] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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