SU173743A1 - The method of obtaining sodium trichloroacetate - Google Patents

The method of obtaining sodium trichloroacetate

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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
Application number
SU918625A
Other languages
Russian (ru)
Inventor
Б.П. Зверев
А.Л. Гольдинов
Ю.А. Паншин
А.А. Шабалин
Original Assignee
Организация Государственного Комитета Среднего Машиностроения
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 Организация Государственного Комитета Среднего Машиностроения filed Critical Организация Государственного Комитета Среднего Машиностроения
Priority to SU918625A priority Critical patent/SU173743A1/en
Application granted granted Critical
Publication of SU173743A1 publication Critical patent/SU173743A1/en

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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)

Формула изобретени Invention Formula Способ получени  трихлорацетата натри  нейтрал1 зацией трихлоруксусной кислоты кальцинированной содой, отличают и и с   тем, что, с целью упрощени  процесса и повышени  выхода, процесс ведут в среде пасыщенного раствора трихлорацетата натри  при температуре не ниже 40° С.The method of producing sodium trichloroacetate by neutralization of trichloroacetic acid with soda ash is also distinguished by the fact that, in order to simplify the process and increase the yield, the process is carried out in a medium of sodium hydrochloride at a temperature not lower than 40 ° C.
SU918625A 1964-08-26 1964-08-26 The method of obtaining sodium trichloroacetate SU173743A1 (en)

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)

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