JPS5559144A - Purification of carbonate - Google Patents
Purification of carbonateInfo
- Publication number
- JPS5559144A JPS5559144A JP13252878A JP13252878A JPS5559144A JP S5559144 A JPS5559144 A JP S5559144A JP 13252878 A JP13252878 A JP 13252878A JP 13252878 A JP13252878 A JP 13252878A JP S5559144 A JPS5559144 A JP S5559144A
- Authority
- JP
- Japan
- Prior art keywords
- carbonate
- oxidant
- contact
- carbon
- brought
- 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
- Eyeglasses (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: Title compounds as diethylene glycol (allyl carbonate) used as a starting material for glass lenses are effectively purified by treating with an oxidant and then bringing into contact with an inorganic absorbent as activated carbon.
CONSTITUTION: A carbonate with ethylenically unsaturated groups, such as diallyl carbonate or dimethallyl carbonate, is brought into contact with an inorganic adsorbent as activated carbon or zeolite, in the presence of a mineral acid or treated with an oxidant and then brought into contact with an inorganic adsorbent at 60W120°C to give title purified compound free from inpurities as staining contamination. The carbonate with ethylenically unsaturated groups means a carbonate bearing at least one of carbon-carbon double bond in the molecule. The mineral acid is, e.g., sulfuric or phosphoric acid and the oxidant is, e.g., sulfuric acid, hydrogen peroxide or potassium permanganate.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13252878A JPS5559144A (en) | 1978-10-30 | 1978-10-30 | Purification of carbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13252878A JPS5559144A (en) | 1978-10-30 | 1978-10-30 | Purification of carbonate |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28939985A Division JPS61210057A (en) | 1985-12-24 | 1985-12-24 | Purification of carbonate compound |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5559144A true JPS5559144A (en) | 1980-05-02 |
JPS6141904B2 JPS6141904B2 (en) | 1986-09-18 |
Family
ID=15083390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13252878A Granted JPS5559144A (en) | 1978-10-30 | 1978-10-30 | Purification of carbonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559144A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0678498A2 (en) * | 1994-04-22 | 1995-10-25 | Bayer Ag | Process for the purification of ethyleneglycol carbonate through adsorption on active carbon |
-
1978
- 1978-10-30 JP JP13252878A patent/JPS5559144A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0678498A2 (en) * | 1994-04-22 | 1995-10-25 | Bayer Ag | Process for the purification of ethyleneglycol carbonate through adsorption on active carbon |
EP0678498A3 (en) * | 1994-04-22 | 1996-03-27 | Bayer Ag | Process for the purification of ethyleneglycol carbonate through adsorption on active carbon. |
Also Published As
Publication number | Publication date |
---|---|
JPS6141904B2 (en) | 1986-09-18 |
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