JPS5585584A - Method of separating and recovering dioxane - Google Patents

Method of separating and recovering dioxane

Info

Publication number
JPS5585584A
JPS5585584A JP15759178A JP15759178A JPS5585584A JP S5585584 A JPS5585584 A JP S5585584A JP 15759178 A JP15759178 A JP 15759178A JP 15759178 A JP15759178 A JP 15759178A JP S5585584 A JPS5585584 A JP S5585584A
Authority
JP
Japan
Prior art keywords
dioxane
solvent
propanol
added
recovered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15759178A
Other languages
Japanese (ja)
Inventor
Sadakatsu Kumoi
Makoto Sumita
Yukihiro Dai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Priority to JP15759178A priority Critical patent/JPS5585584A/en
Publication of JPS5585584A publication Critical patent/JPS5585584A/en
Pending legal-status Critical Current

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  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

PURPOSE: A specific solvent is added to a dioxane mixture containing n-propanol and they are distilled to separate and recover the dioxane and the added solvent is almost quantitatively recovered with very simple operations and reused.
CONSTITUTION: A mixture of dioxane mainly containing n-propanol, as water-n- propanol-dioxane or n-propanol-dioxane, is combined with a solvent as benzene or n-hexane and the dioxane is separated by distillation. The difference in boiling point between dioxane and the distilling-off fraction is as large as 25W40°C, the separation is carried out with extreme easiness and there is scarcely the recovery loss of dioxane. Further, the recovered dioxane is pure and used directly as a solvent. The solvent added after the distillation and distilling-off fraction containing water are combined with water to separate into two layers and the solvent is recovered and reused.
COPYRIGHT: (C)1980,JPO&Japio
JP15759178A 1978-12-22 1978-12-22 Method of separating and recovering dioxane Pending JPS5585584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15759178A JPS5585584A (en) 1978-12-22 1978-12-22 Method of separating and recovering dioxane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15759178A JPS5585584A (en) 1978-12-22 1978-12-22 Method of separating and recovering dioxane

Publications (1)

Publication Number Publication Date
JPS5585584A true JPS5585584A (en) 1980-06-27

Family

ID=15653047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15759178A Pending JPS5585584A (en) 1978-12-22 1978-12-22 Method of separating and recovering dioxane

Country Status (1)

Country Link
JP (1) JPS5585584A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801357A (en) * 1988-04-01 1989-01-31 Lloyd Berg Separation of acetic acid from dioxane by extractive distillation
US4801358A (en) * 1988-07-28 1989-01-31 Lloyd Berg Separation of acetic acid from dioxane by extractive distillation
US4806209A (en) * 1988-04-25 1989-02-21 Lloyd Berg Separation of formic acid from dioxane by extractive distillation
US4948469A (en) * 1988-12-05 1990-08-14 Lloyd Berg Separation of formic acid from dioxane by extractive distillation with amides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801357A (en) * 1988-04-01 1989-01-31 Lloyd Berg Separation of acetic acid from dioxane by extractive distillation
US4806209A (en) * 1988-04-25 1989-02-21 Lloyd Berg Separation of formic acid from dioxane by extractive distillation
US4801358A (en) * 1988-07-28 1989-01-31 Lloyd Berg Separation of acetic acid from dioxane by extractive distillation
US4948469A (en) * 1988-12-05 1990-08-14 Lloyd Berg Separation of formic acid from dioxane by extractive distillation with amides

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