Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization

Yuan Zhang; Xu Qiao; Mifen Cui; Jihai Tang; Jinping Zhang

Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization

Yuan Zhang, Xu Qiao, Mifen Cui, Jihai Tang, Jinping Zhang

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

Abstract

An coupling apparatus with a chlorination reactor and a melt crystallizer was built, which was used in chlorination of acetic acid and separation of monochloroacetic acid (MCA) by crystallization at the same time. It meet the demands for restraining the over-chlorination and increasing the yield of MCA. Under the same conditions of crystallization, the change of the concentration of MCA with the reaction time at different chlorine flow was sdudied. The results showed that a "platform" in the concentration curve of MCA appears when the chlorine flow is 314.6 mL/min, and the reaction capacity matches with the separation capacity at that time. The mass fraction of MCA crystal is 94.9%, and the content of dichloroacetic acid is below 1.5%.

Original language	English
Pages (from-to)	43-46
Number of pages	4
Journal	Speciality Petrochemicals
Issue number	3
State	Published - 18 May 2005

Keywords

Acetic acid
Monochloroacetic acid
Reaction crystallization

Cite this

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title = "Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization",

abstract = "An coupling apparatus with a chlorination reactor and a melt crystallizer was built, which was used in chlorination of acetic acid and separation of monochloroacetic acid (MCA) by crystallization at the same time. It meet the demands for restraining the over-chlorination and increasing the yield of MCA. Under the same conditions of crystallization, the change of the concentration of MCA with the reaction time at different chlorine flow was sdudied. The results showed that a {"}platform{"} in the concentration curve of MCA appears when the chlorine flow is 314.6 mL/min, and the reaction capacity matches with the separation capacity at that time. The mass fraction of MCA crystal is 94.9%, and the content of dichloroacetic acid is below 1.5%.",

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author = "Yuan Zhang and Xu Qiao and Mifen Cui and Jihai Tang and Jinping Zhang",

year = "2005",

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journal = "Speciality Petrochemicals",

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TY - JOUR

T1 - Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization

AU - Zhang, Yuan

AU - Qiao, Xu

AU - Cui, Mifen

AU - Tang, Jihai

AU - Zhang, Jinping

PY - 2005/5/18

Y1 - 2005/5/18

N2 - An coupling apparatus with a chlorination reactor and a melt crystallizer was built, which was used in chlorination of acetic acid and separation of monochloroacetic acid (MCA) by crystallization at the same time. It meet the demands for restraining the over-chlorination and increasing the yield of MCA. Under the same conditions of crystallization, the change of the concentration of MCA with the reaction time at different chlorine flow was sdudied. The results showed that a "platform" in the concentration curve of MCA appears when the chlorine flow is 314.6 mL/min, and the reaction capacity matches with the separation capacity at that time. The mass fraction of MCA crystal is 94.9%, and the content of dichloroacetic acid is below 1.5%.

AB - An coupling apparatus with a chlorination reactor and a melt crystallizer was built, which was used in chlorination of acetic acid and separation of monochloroacetic acid (MCA) by crystallization at the same time. It meet the demands for restraining the over-chlorination and increasing the yield of MCA. Under the same conditions of crystallization, the change of the concentration of MCA with the reaction time at different chlorine flow was sdudied. The results showed that a "platform" in the concentration curve of MCA appears when the chlorine flow is 314.6 mL/min, and the reaction capacity matches with the separation capacity at that time. The mass fraction of MCA crystal is 94.9%, and the content of dichloroacetic acid is below 1.5%.

KW - Acetic acid

KW - Monochloroacetic acid

KW - Reaction crystallization

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M3 - 文章

AN - SCOPUS:22744459649

SN - 1003-9384

SP - 43

EP - 46

JO - Speciality Petrochemicals

JF - Speciality Petrochemicals

IS - 3

ER -

Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization

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Keywords

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