JPS6431805A - Elimination of acrylonitrile in water or aqueous dispersion - Google Patents
Elimination of acrylonitrile in water or aqueous dispersionInfo
- Publication number
- JPS6431805A JPS6431805A JP18858987A JP18858987A JPS6431805A JP S6431805 A JPS6431805 A JP S6431805A JP 18858987 A JP18858987 A JP 18858987A JP 18858987 A JP18858987 A JP 18858987A JP S6431805 A JPS6431805 A JP S6431805A
- Authority
- JP
- Japan
- Prior art keywords
- acrylonitrile
- aqueous dispersion
- water
- elimination
- sulfoxylate
- 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.)
- Granted
Links
Landscapes
- Removal Of Specific Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To accomplish the titled elimination in high efficiency by adding a specific acrylonitrile eliminator to acrylonitrile-contg. water or aqueous dispersion to convert the free acrylonitrile into another substance. CONSTITUTION:Generally, 1-6 moles per mole of acrylonitrile, of (A) a sulfoxylate (e.g. alkali metal salt, alkaline earth metal salt, ammonium salt of H2SO2) or (B) an aldehyde derivative therefrom (e.g. formaldehyde sodium sulfoxylate dihydrate, formaldehyde zinc sulfoxylate) or (C) a dithionite (e.g. sodium salt of H2S2O4) is added to acrylonitrile-contg. water or aqueous dispersion followed by treatment at 0-95 deg.C for 30min. to 6hrs., thus eliminating the acrylonitrile present. This elimination process is in particular useful as a reduction procedure for the free acrylonitrile present in a latex of copolymer containing acrylonitrile as a constitutent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188589A JP2556331B2 (en) | 1987-07-28 | 1987-07-28 | Method for removing acrylonitrile in water or aqueous dispersion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188589A JP2556331B2 (en) | 1987-07-28 | 1987-07-28 | Method for removing acrylonitrile in water or aqueous dispersion |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6431805A true JPS6431805A (en) | 1989-02-02 |
JP2556331B2 JP2556331B2 (en) | 1996-11-20 |
Family
ID=16226311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62188589A Expired - Lifetime JP2556331B2 (en) | 1987-07-28 | 1987-07-28 | Method for removing acrylonitrile in water or aqueous dispersion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2556331B2 (en) |
-
1987
- 1987-07-28 JP JP62188589A patent/JP2556331B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2556331B2 (en) | 1996-11-20 |
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