TW367322B - Process for the purification of acetone - Google Patents

Process for the purification of acetone

Info

Publication number
TW367322B
TW367322B TW085112563A TW85112563A TW367322B TW 367322 B TW367322 B TW 367322B TW 085112563 A TW085112563 A TW 085112563A TW 85112563 A TW85112563 A TW 85112563A TW 367322 B TW367322 B TW 367322B
Authority
TW
Taiwan
Prior art keywords
acetone
cumene
column
water
triethyleneglycol
Prior art date
Application number
TW085112563A
Other languages
Chinese (zh)
Inventor
Loreno Lorenzoni
Simula Salvatore
Giuseppe Messina
Riccardo Mansani
Original Assignee
Enichem Spa
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 Enichem Spa filed Critical Enichem Spa
Application granted granted Critical
Publication of TW367322B publication Critical patent/TW367322B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a process for the purification of raw acetone deriving from processes for the production of phenol acetone, impurity mainly due to cumene, water, aldehydes and methanol, which comprises: feeding the stream of raw acetone coming from the primary fractionation of a plant for the production of phenol/acetone to a first distillation column to which a solution of sodium hydroxide at 2% is also fed; sending the stream at the head of the first column, consisting of acetone, water and cumene to a second column to which the extractive solvent triethyleneglycol is also fed; recovering the practically anhydrous acetone from the head of the second column; feeding the bottom product of the second column, containing triethyleneglycol, water, cumene and acetone to a third distillation column in which an azeotropic mixture of water/cumene is recovered from the head and anhydrous triethyleneglycol from the tail; sending the azeotropic mixture of water/cumene to a decanter in which a water phase is separated, containing acetone, which is recycled to the first column and an organic phase, containing cumene and acetone, which is sent to the primary fractionation.
TW085112563A 1995-10-06 1996-10-15 Process for the purification of acetone TW367322B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT9502032 1995-10-06

Publications (1)

Publication Number Publication Date
TW367322B true TW367322B (en) 1999-08-21

Family

ID=57941201

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085112563A TW367322B (en) 1995-10-06 1996-10-15 Process for the purification of acetone

Country Status (1)

Country Link
TW (1) TW367322B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI668206B (en) * 2017-06-29 2019-08-11 美商環球油品有限責任公司 Process and apparatus for removing aldehydes from acetone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI668206B (en) * 2017-06-29 2019-08-11 美商環球油品有限責任公司 Process and apparatus for removing aldehydes from acetone

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees