TW200643007A - Process for removing methacrylic acid from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component - Google Patents

Process for removing methacrylic acid from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component

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Publication number
TW200643007A
TW200643007A TW095106875A TW95106875A TW200643007A TW 200643007 A TW200643007 A TW 200643007A TW 095106875 A TW095106875 A TW 095106875A TW 95106875 A TW95106875 A TW 95106875A TW 200643007 A TW200643007 A TW 200643007A
Authority
TW
Taiwan
Prior art keywords
methacrylic acid
liquid phase
target product
main constituent
secondary component
Prior art date
Application number
TW095106875A
Other languages
Chinese (zh)
Other versions
TWI357894B (en
Inventor
Joerg Heilek
Klaus Joachim Mueller-Engel
Christoph Adami
Martin Dieterle
Original Assignee
Basf Ag
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
Priority claimed from DE200510009890 external-priority patent/DE102005009890A1/en
Priority claimed from DE200510015639 external-priority patent/DE102005015639A1/en
Application filed by Basf Ag filed Critical Basf Ag
Publication of TW200643007A publication Critical patent/TW200643007A/en
Application granted granted Critical
Publication of TWI357894B publication Critical patent/TWI357894B/en

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

Abstract

A process for removing methacrylic acid from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component in which the removal is effected by crystallization, the acrylic acid accumulating in the crystals formed and the methacrylic acid in the remaining mother liquor.
TW95106875A 2005-03-01 2006-03-01 Process for removing methacrylic acid from liquid TWI357894B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65687705P 2005-03-01 2005-03-01
DE200510009890 DE102005009890A1 (en) 2005-03-01 2005-03-01 Separation of methracrolein from acrylic acid, comprises crystallizing and separating the acrylic acid, and leaving the methacrolein in a liquid phase of the mother liquor
US66808905P 2005-04-05 2005-04-05
DE200510015639 DE102005015639A1 (en) 2005-04-05 2005-04-05 Removal of methacrylic acid from liquid phase comprising acrylic acid as main constituent involves performing crystallization to accumulate acrylic acid in the crystals formed and the methacrylic acid in the remaining mother liquor

Publications (2)

Publication Number Publication Date
TW200643007A true TW200643007A (en) 2006-12-16
TWI357894B TWI357894B (en) 2012-02-11

Family

ID=46728148

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95106875A TWI357894B (en) 2005-03-01 2006-03-01 Process for removing methacrylic acid from liquid

Country Status (1)

Country Link
TW (1) TWI357894B (en)

Also Published As

Publication number Publication date
TWI357894B (en) 2012-02-11

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