SU639896A1 - Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid - Google Patents

Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid

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Publication number
SU639896A1
SU639896A1 SU772487600A SU2487600A SU639896A1 SU 639896 A1 SU639896 A1 SU 639896A1 SU 772487600 A SU772487600 A SU 772487600A SU 2487600 A SU2487600 A SU 2487600A SU 639896 A1 SU639896 A1 SU 639896A1
Authority
SU
USSR - Soviet Union
Prior art keywords
ethylhexylphosphoric acid
mono
purifying
ethylhexylphosphoric
acid
Prior art date
Application number
SU772487600A
Other languages
Russian (ru)
Inventor
Владимир Иванович Светлаков
Юрий Зиновьевич Прокопчук
Земфира Александровна Болотова
Original Assignee
Предприятие П/Я А-7564
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 Предприятие П/Я А-7564 filed Critical Предприятие П/Я А-7564
Priority to SU772487600A priority Critical patent/SU639896A1/en
Application granted granted Critical
Publication of SU639896A1 publication Critical patent/SU639896A1/en

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Description

в ОН-форме в течение 30 мин при 20°С. М2ЭГФК сорбируетс  па апиопите, а Д2ЭГФК переходит в фильтрат. Четыреххлористый углерод удал ют путем вакуумной отгонки с вод ным паром. Чистоту Д2ЭГФК определ ют потенциометрпческим методом. Полученна  Д2ЭГФК содержит менее 5% М2ЭГФК; удельный вес 0,976. Пример 2. 1 л Д2ЭГФК, содержащей 35% М2ЭГФК, разбавл ют 5 л четыреххлористого углерода. Полученный раствор привод т в контакт с 1 л сильноосновного анионита гелевой структуры типа АВ-23М в СОз -форме при 20°С со скоростью 70 мл/мин. М2ЭГФК сорбируетс  на аниоиите , а Д2ЭГФК переходит в фильтрат. Четыреххлористый углерод здал ют. Полученна  Д23ГФ1 с выходом 95% содержит - 1 % М2ЭГФК.in OH form for 30 minutes at 20 ° C. M2EHPA is sorbed on apiopite, and D2EHPA is transferred to the filtrate. Carbon tetrachloride is removed by vacuum stripping with steam. The purity of D2EHPA is determined by the potentiometric method. The resulting D2EHPA contains less than 5% M2EHPA; specific gravity 0.976. Example 2. 1 l of D2EHPA containing 35% M2EHPA is diluted with 5 liters of carbon tetrachloride. The resulting solution is brought into contact with 1 liter of a strongly basic anion exchange resin exchanger of the AV-23M type gel in the CO2-form at 20 ° C at a rate of 70 ml / min. M2EHPA is sorbed on anoiite, and D2EHPA is transferred to the filtrate. Carbon tetrachloride is added. The obtained D23GF1 with a yield of 95% contains –1% M2EHPA.

Форм у л а изобретен и  Formula is invented and

Способ очистки ди-2-этилгексилфосфорной кислоты от моно-2-этилгексилфосфорной кислоты путем пропускани  исходного продукта в растворителе через сорбент, отличающийс  тем, что, с целью упрощени  процесса, в качестве сорбента используют сильноосновные аниониты пористой или гелевой структуры в ОН- или СОз форме и в качестве растворител  используют четыреххлористый углерод при соотношении его и исходного продукта (1 -10) : 1.The method of purification of di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid by passing the starting product in a solvent through a sorbent, characterized in that, in order to simplify the process, strongly base anion exchangers of porous or gel structure in OH or COz form are used as a sorbent and carbon tetrachloride is used as a solvent with a ratio of its and initial product (1-10): 1.

Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination

1. Москвин Л. П. и др. Вли ние солей Na, К, Mg и Са на экстракцию Се и УД2ЭГФК из кислых растворов. Атомна  энерги , 1968, 24, 6, с. 568 (нрототип).1. Moskvin L.P., et al. Effects of Na, K, Mg, and Ca salts on the extraction of Ce and UD2EHPA from acidic solutions. Atomic energy, 1968, 24, 6, p. 568 (nrotiotype).

SU772487600A 1977-05-20 1977-05-20 Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid SU639896A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772487600A SU639896A1 (en) 1977-05-20 1977-05-20 Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772487600A SU639896A1 (en) 1977-05-20 1977-05-20 Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid

Publications (1)

Publication Number Publication Date
SU639896A1 true SU639896A1 (en) 1978-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU772487600A SU639896A1 (en) 1977-05-20 1977-05-20 Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid

Country Status (1)

Country Link
SU (1) SU639896A1 (en)

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