GB142738A - Manufacture of para-cymene - Google Patents
Manufacture of para-cymeneInfo
- Publication number
- GB142738A GB142738A GB2433119A GB2433119A GB142738A GB 142738 A GB142738 A GB 142738A GB 2433119 A GB2433119 A GB 2433119A GB 2433119 A GB2433119 A GB 2433119A GB 142738 A GB142738 A GB 142738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cymene
- manufacture
- para
- boiling
- limonene
- 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.)
- Expired
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
p-Cymene is prepared from residual terpenes, boiling at about 175 DEG C., from the manufacture of artificial camphor, or pine-needle oil fractions boiling at about 175 DEG C., which consist essentially of i-limonene, by chlorination followed by steam-distillation of the product. The p-cymene may be purified by treating with zinc chloride or other condensing agent, or with oxidizing-agents such as potassium permanganate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2433119A GB142738A (en) | 1919-10-06 | 1919-10-06 | Manufacture of para-cymene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2433119A GB142738A (en) | 1919-10-06 | 1919-10-06 | Manufacture of para-cymene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB142738A true GB142738A (en) | 1920-05-13 |
Family
ID=10210017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2433119A Expired GB142738A (en) | 1919-10-06 | 1919-10-06 | Manufacture of para-cymene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB142738A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431756A (en) * | 1945-02-28 | 1947-12-02 | Universal Oil Prod Co | Treatment of terpenic hydrocarbons |
CN112250535A (en) * | 2020-11-17 | 2021-01-22 | 广西壮族自治区林业科学研究院 | Preparation method of p-cymene |
-
1919
- 1919-10-06 GB GB2433119A patent/GB142738A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431756A (en) * | 1945-02-28 | 1947-12-02 | Universal Oil Prod Co | Treatment of terpenic hydrocarbons |
CN112250535A (en) * | 2020-11-17 | 2021-01-22 | 广西壮族自治区林业科学研究院 | Preparation method of p-cymene |
CN112250535B (en) * | 2020-11-17 | 2022-12-16 | 广西壮族自治区林业科学研究院 | Preparation method of p-cymene |
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