SU173743A1 - The method of obtaining sodium trichloroacetate - Google Patents
The method of obtaining sodium trichloroacetateInfo
- Publication number
- SU173743A1 SU173743A1 SU918625A SU918625A SU173743A1 SU 173743 A1 SU173743 A1 SU 173743A1 SU 918625 A SU918625 A SU 918625A SU 918625 A SU918625 A SU 918625A SU 173743 A1 SU173743 A1 SU 173743A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium trichloroacetate
- obtaining sodium
- trichloroacetate
- temperature
- yield
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известен способ получени трихлорацетата натри нейтрализацией трихлоруксусной кислоты в водных растворах и выпариванием досуха образующихс растворов при температуре не выше 90° С. Однако при таком способе выпариваетс значительное количество воды; кроме того, вследствие неустойчивости трихлорацетата натри упаривание необходимо вести при температуре не выше 90° С, т. е. либо под вакуумом, либо в токе пнерта, а дл проведени процесса необходимо специальное аппаратурное оформление.A known method for producing sodium trichloroacetate by neutralizing trichloroacetic acid in aqueous solutions and evaporating the resulting solutions to a dry temperature at a temperature not higher than 90 ° C. However, this method evaporates a significant amount of water; In addition, due to the instability of sodium trichloroacetate, evaporation must be carried out at a temperature not higher than 90 ° C, i.e., either under vacuum or in a current of fluorite, and special instrumentation is necessary for carrying out the process.
Известен также способ нейтрализации трихлоруксусной кислоты кальцинированной содой в среде органического растворител . Выход целевого продукта 97%.There is also known a method of neutralizing trichloroacetic acid with soda ash in an organic solvent medium. The yield of the target product is 97%.
С целью упрощени процесса и повышени выхода продукта предлагаетс вести процесс в среде насыщенного раствора трихлорацетата натри . Процесс провод т при температуре не ниже 40° С.In order to simplify the process and increase the yield of the product, it is proposed to conduct the process in a saturated sodium trichloroacetate solution. The process is carried out at a temperature not lower than 40 ° C.
Пример. К 328 г (67%) насыщенного при 40° С раствора трихлорацетата патри (ТХАН) добавл ют 94,5 г (95%) трихлоруксусной кислоты и 37 г кристаллической соды. Образовавшуюс пульпу перемешивают в реакторе 40 мин при 40° С, затем осадок центрифугируют в течение 5 мин при факторе разделени , равном 1000.Example. 94.5 g (95%) of trichloroacetic acid and 37 g of crystalline soda are added to 328 g (67%) of a solution of patriotri trichloroacetate (THAH) saturated at 40 ° C. The resulting pulp is stirred in the reactor for 40 minutes at 40 ° C, then the precipitate is centrifuged for 5 minutes at a separation factor of 1000.
Получают 102 г ТХАН следующего состава , %:Obtain 102 g THAN of the following composition,%:
CCiaCGONaCCiaCGONa
92,6 3,2 92.6 3.2
КапСОз 3,8Capsoz 3.8
НЮNU
и 332 г маточника, содержащего 67% ТХАН. Выход ТХАП 98,5%, причем из этого количества 92,6% представл ют собой кристаллический п.родукт, а 5,9 and 332 g of mother liquor containing 67% THAN. The yield of THAP is 98.5%, of which 92.6% is the crystalline product, and 5.9
остаетс в маточпике .remains in the motherboard.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU918625A SU173743A1 (en) | 1964-08-26 | 1964-08-26 | The method of obtaining sodium trichloroacetate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU918625A SU173743A1 (en) | 1964-08-26 | 1964-08-26 | The method of obtaining sodium trichloroacetate |
Publications (1)
Publication Number | Publication Date |
---|---|
SU173743A1 true SU173743A1 (en) | 1977-03-05 |
Family
ID=20438065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU918625A SU173743A1 (en) | 1964-08-26 | 1964-08-26 | The method of obtaining sodium trichloroacetate |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU173743A1 (en) |
-
1964
- 1964-08-26 SU SU918625A patent/SU173743A1/en active
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