Clean production of chlorine from hydrogen chloride with Mn-compound as intermediate

Gang Yang; Yong Sun; Jinping Zhang; Zuohu Li; Yunshan Wang

doi:10.1016/j.cjche.2014.11.015

Clean production of chlorine from hydrogen chloride with Mn-compound as intermediate

Gang Yang, Yong Sun, Jinping Zhang, Zuohu Li, Yunshan Wang

Research output: Journal Publication › Article › peer-review

2 Citations (Scopus)

Abstract

A new process is developed by using compound Mn as intermediate to produce Cl₂ from HCl, with the following steps. (1) HCl steam is decomposed by intermediate Mn₂O₃ to produce Cl₂ and MnCl₂ at 500 °C. (2) Produced MnCl₂ is oxidized by water steam to produce MnO at 450 °C. (3) The MnO compound is oxidized by air to yield Mn₂O₃. The X-ray diffraction (XRD) crystallite characterization results indicate the high conversion in each step under the optimum experimental conditions. Long term experiments for continuous conversion of HCl to Cl₂ by using Mn₂O₃ as intermediate in a fixed bed reactor indicate that over 90% of HCl could be converted to Cl₂ on stream of 30 h. The production of Cl₂ from HCl with Mn compound as an intermediate and atmospheric steam is a feasible and recyclable process.

Original language	English
Pages (from-to)	435-440
Number of pages	6
Journal	Chinese Journal of Chemical Engineering
Volume	23
Issue number	2
DOIs	https://doi.org/10.1016/j.cjche.2014.11.015
Publication status	Published - 1 Feb 2015
Externally published	Yes

Keywords

Chlorine
Hydrogen chloride
Manganese chloride
Manganese oxide

ASJC Scopus subject areas

Environmental Engineering
Biochemistry
General Chemistry
General Chemical Engineering

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10.1016/j.cjche.2014.11.015

Cite this

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title = "Clean production of chlorine from hydrogen chloride with Mn-compound as intermediate",

abstract = "A new process is developed by using compound Mn as intermediate to produce Cl2 from HCl, with the following steps. (1) HCl steam is decomposed by intermediate Mn2O3 to produce Cl2 and MnCl2 at 500 °C. (2) Produced MnCl2 is oxidized by water steam to produce MnO at 450 °C. (3) The MnO compound is oxidized by air to yield Mn2O3. The X-ray diffraction (XRD) crystallite characterization results indicate the high conversion in each step under the optimum experimental conditions. Long term experiments for continuous conversion of HCl to Cl2 by using Mn2O3 as intermediate in a fixed bed reactor indicate that over 90% of HCl could be converted to Cl2 on stream of 30 h. The production of Cl2 from HCl with Mn compound as an intermediate and atmospheric steam is a feasible and recyclable process.",

keywords = "Chlorine, Hydrogen chloride, Manganese chloride, Manganese oxide",

author = "Gang Yang and Yong Sun and Jinping Zhang and Zuohu Li and Yunshan Wang",

year = "2015",

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doi = "10.1016/j.cjche.2014.11.015",

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journal = "Chinese Journal of Chemical Engineering",

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TY - JOUR

T1 - Clean production of chlorine from hydrogen chloride with Mn-compound as intermediate

AU - Yang, Gang

AU - Sun, Yong

AU - Zhang, Jinping

AU - Li, Zuohu

AU - Wang, Yunshan

PY - 2015/2/1

Y1 - 2015/2/1

N2 - A new process is developed by using compound Mn as intermediate to produce Cl2 from HCl, with the following steps. (1) HCl steam is decomposed by intermediate Mn2O3 to produce Cl2 and MnCl2 at 500 °C. (2) Produced MnCl2 is oxidized by water steam to produce MnO at 450 °C. (3) The MnO compound is oxidized by air to yield Mn2O3. The X-ray diffraction (XRD) crystallite characterization results indicate the high conversion in each step under the optimum experimental conditions. Long term experiments for continuous conversion of HCl to Cl2 by using Mn2O3 as intermediate in a fixed bed reactor indicate that over 90% of HCl could be converted to Cl2 on stream of 30 h. The production of Cl2 from HCl with Mn compound as an intermediate and atmospheric steam is a feasible and recyclable process.

AB - A new process is developed by using compound Mn as intermediate to produce Cl2 from HCl, with the following steps. (1) HCl steam is decomposed by intermediate Mn2O3 to produce Cl2 and MnCl2 at 500 °C. (2) Produced MnCl2 is oxidized by water steam to produce MnO at 450 °C. (3) The MnO compound is oxidized by air to yield Mn2O3. The X-ray diffraction (XRD) crystallite characterization results indicate the high conversion in each step under the optimum experimental conditions. Long term experiments for continuous conversion of HCl to Cl2 by using Mn2O3 as intermediate in a fixed bed reactor indicate that over 90% of HCl could be converted to Cl2 on stream of 30 h. The production of Cl2 from HCl with Mn compound as an intermediate and atmospheric steam is a feasible and recyclable process.

KW - Chlorine

KW - Hydrogen chloride

KW - Manganese chloride

KW - Manganese oxide

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U2 - 10.1016/j.cjche.2014.11.015

DO - 10.1016/j.cjche.2014.11.015

M3 - Article

AN - SCOPUS:84922941246

SN - 1004-9541

VL - 23

SP - 435

EP - 440

JO - Chinese Journal of Chemical Engineering

JF - Chinese Journal of Chemical Engineering

IS - 2

ER -

Clean production of chlorine from hydrogen chloride with Mn-compound as intermediate

Abstract

Keywords

ASJC Scopus subject areas

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