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 acidInfo
- 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
Links
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).
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 |
Family
ID=20709652
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) |
-
1977
- 1977-05-20 SU SU772487600A patent/SU639896A1/en active
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