GB142738A - Manufacture of para-cymene - Google Patents

Manufacture of para-cymene

Info

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
Application number
GB2433119A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinische Kampferfabrik G M B
Original Assignee
Rheinische Kampferfabrik G M B
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 Rheinische Kampferfabrik G M B filed Critical Rheinische Kampferfabrik G M B
Priority to GB2433119A priority Critical patent/GB142738A/en
Publication of GB142738A publication Critical patent/GB142738A/en
Expired legal-status Critical Current

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  • 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.
GB2433119A 1919-10-06 1919-10-06 Manufacture of para-cymene Expired GB142738A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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