SU71295A1 - Method for converting semi-drying vegetable oils to drying - Google Patents
Method for converting semi-drying vegetable oils to dryingInfo
- Publication number
- SU71295A1 SU71295A1 SU673A SU341345A SU71295A1 SU 71295 A1 SU71295 A1 SU 71295A1 SU 673 A SU673 A SU 673A SU 341345 A SU341345 A SU 341345A SU 71295 A1 SU71295 A1 SU 71295A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- drying
- vegetable oils
- semi
- converting
- converting semi
- Prior art date
Links
Landscapes
- Fats And Perfumes (AREA)
Description
Среди многих способов превращени полувысыхающих масел в высыхающие имеютс случаи примеиени аддуктов масел с малеиновсй кислотой.Among the many ways of converting semi-drying oils into drying ones, there are cases of applying adducts of oils with maleic acid.
Установлено, что этот процесс вл етс эффективным лишь при предварительной переэтерификации масла небольшой добавкой (3-5%) высокоатомного спирта, например пентаэритрита. После переэтерификгции масла пентаэритритом добавл ют 4-8% малеинового ангидрида.It has been established that this process is effective only with preliminary transesterification of the oil with a small additive (3-5%) of a high-alcohol alcohol, for example pentaerythritol. After transesterification of the oil with pentaerythritol, 4-8% maleic anhydride is added.
Пример. 85,94 кг подсолнечного масла переэтерифицируют 5,7 кг пентаэритрита в присутствии 0,06 кг окиси кальци , дл чего вначале смесь подсолнечного масла с окисью кальци нагревают при перемешивании до 250°, а после растворени окиси кальци в .масле.добавл ют к смеси 1пентаэритрит.Example. 85.94 kg of sunflower oil are transesterified with 5.7 kg of pentaerythritol in the presence of 0.06 kg of calcium oxide, for which, at first, the mixture of sunflower oil with calcium oxide is heated with stirring to 250 °, and after dissolving calcium oxide in oil. 1pentaerythritol.
Реакцию переэтерификации провод т при 250-260° при перемешивании в течение 45-50 мин. Реакцию считают законченной, если проба при нагревании раствор етс в этиловом спирте в cooTHomeKHK 1 :1. Неполные глицериды, полученные в процессе переэтерификацин, этерифицируют далее прибавлением 8,3 /сг малеинового ангидрида. Эту реакцию этерификации провод т при температуре 180-240°. Окончание реакции наступает, когда кислотность ре кпипинпй смеси достигает 25- 30 кг КОН.The transesterification reaction is carried out at 250-260 ° with stirring for 45-50 minutes. The reaction is considered complete if the sample dissolves in ethyl alcohol in a cooTHomeKHK 1: 1 when heated. Incomplete glycerides obtained in the process of transesterifikacin are esterified further by the addition of 8.3 / cg of maleic anhydride. This esterification reaction is carried out at a temperature of 180-240 °. The end of the reaction occurs when the acidity of the repinitial mixture reaches 25-30 kg KOH.
Полное высыхание модифицированного подсолнечного масла наступает через 7-8 час.Full drying of the modified sunflower oil occurs in 7-8 hours.
Твердость пленки через 24 час - 0,12-0,14.The hardness of the film after 24 hours - 0.12-0.14.
Водостойкость пленки - 4-6 час.The film water resistance is 4-6 hours.
№ 71295№ 71295
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU673A SU71295A1 (en) | 1945-10-29 | 1945-10-29 | Method for converting semi-drying vegetable oils to drying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU673A SU71295A1 (en) | 1945-10-29 | 1945-10-29 | Method for converting semi-drying vegetable oils to drying |
Publications (1)
Publication Number | Publication Date |
---|---|
SU71295A1 true SU71295A1 (en) | 1947-11-30 |
Family
ID=48248447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU673A SU71295A1 (en) | 1945-10-29 | 1945-10-29 | Method for converting semi-drying vegetable oils to drying |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU71295A1 (en) |
-
1945
- 1945-10-29 SU SU673A patent/SU71295A1/en active
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