SU591457A1 - Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane - Google Patents

Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane

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Publication number
SU591457A1
SU591457A1 SU721852176A SU1852176A SU591457A1 SU 591457 A1 SU591457 A1 SU 591457A1 SU 721852176 A SU721852176 A SU 721852176A SU 1852176 A SU1852176 A SU 1852176A SU 591457 A1 SU591457 A1 SU 591457A1
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SU
USSR - Soviet Union
Prior art keywords
dioxy
diaminodiphenylmethane
tetrahydrofuran
technical
fact
Prior art date
Application number
SU721852176A
Other languages
Russian (ru)
Inventor
Нина Николаевна Шмагина
Галина Алексеевна Гуляева
Лазарь Давыдович Перцов
Сергей Федорович Калинкин
Original Assignee
Предприятие П/Я М-5885
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Publication date
Application filed by Предприятие П/Я М-5885 filed Critical Предприятие П/Я М-5885
Priority to SU721852176A priority Critical patent/SU591457A1/en
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Publication of SU591457A1 publication Critical patent/SU591457A1/en

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Description

(54)СПОСОБ ОЧИСТКИ(54) CLEANING METHOD

3,3 -ДИОКСИ-4, 4-ДИАМИНОДИФЕИИЛМЕТАНА3,3 -DIOXI-4, 4-DIAMINODIPHEILEMETHANE

25% Ot технического продукта; т.пл. 222 224С.25% Ot technical product; m.p. 222 224C.

Найдено,%JC 67,49;Н 6,08; N12,19.Found,% JC 67.49; H 6.08; N12.19.

HI- «гО.Пример 3.9/0 кг 3, З-диокси-4, d -диаминодифенйлметана, обработанного тетрагидрофураном/ внос т в смесь 15,0 кг диметилформамида и 15,0 кг воды и нагревают до ЭвС в течение 1 час Целевой продукт выдел ют по примеру 1, Выход 4,8 кг, что соответствует 26,7% от технического продукта, т.пл.- 219- 221С. HI- "gO. Example 3.9 / 0 kg 3, 3-dioxy-4, d-diaminodiphenylmethane, treated with tetrahydrofuran / introduced into a mixture of 15.0 kg of dimethylformamide and 15.0 kg of water and heated to EVS for 1 hour. Target product excreted in Example 1, Yield 4.8 kg, which corresponds to 26.7% of the technical product, mp 219-210С.

Найдено,% е 67,80;Н 6,05; N 12,15.Found,% e 67.80; H 6.05; N 12.15.

Сочетание перекристаллизации техничёского продукта из водно-органической смеси, например водно-пиридиновой , с предварительной обработкой технического продукта тетрагидрофураном позвол ет получать чистый целевой продукт с содержанием основного вещества 99,3-99,8% не только в лабораторных услови х, но и в опытных. Предложенный способ прост в осуществлении, не требует специального оборудовани . The combination of recrystallization of the technical product from an aqueous-organic mixture, for example, water-pyridine, with pretreatment of a technical product with tetrahydrofuran makes it possible to obtain a pure target product with a content of the main substance of 99.3-99.8% not only in laboratory conditions, but also in experimental . The proposed method is simple to implement, does not require special equipment.

Claims (3)

1.Способ очистки 3,З-диокси-4,4- -днаминодифенилметана, отличающийс  тем, что технический 3,3диокси-4 ,4 -диаминодифенилметан, содежащий в качестве примеси флоккулирутощие агенты, обрабатывают тетрагидроФураном , раствор ют в воде, содержащей органический растворитель, такой, как диметилацетамид или пиридин, при 90-100°С и выдел ют целевой продукт кристаллизацией.1. A purification method for 3, 3-dioxy-4,4-γ-diphenodiphenylmethane, characterized in that technical 3,3-dioxy-4, 4-diaminodiphenylmethane, which contains flocculating agents as an impurity, is treated with tetrahydrofuran and dissolved in water containing an organic solvent such as dimethylacetamide or pyridine at 90-100 ° C and the desired product is isolated by crystallization. 2.Способ по Ml, отличаювд и и с   тем, что используют весовое соотношение между техническим диами-. ном и тетрагидрофураном, равиое .2. Method for Ml, different from and with the fact that they use the weight ratio between technical diami-. Mr. and tetrahydrofuran, ravioe. 3.Способ по П.1, о т лича ю щи и с   тем, что использ5ют весог воесоотнсиление кюжду водой и органическим растворителем, IjasHoe 1:1.3. The method according to Clause 1, which is based on the fact that weight loss is used by water and an organic solvent, IjasHoe 1: 1. Источники инфо{эмации, прин тые во внимание при экспертизе:Sources of information {emacias taken into account during the examination: 1. Авторское свидетельство №363692 С 07 С 84/16, 1972. 1. Copyright certificate №363692 C 07 C 84/16, 1972.
SU721852176A 1972-11-30 1972-11-30 Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane SU591457A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU721852176A SU591457A1 (en) 1972-11-30 1972-11-30 Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU721852176A SU591457A1 (en) 1972-11-30 1972-11-30 Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane

Publications (1)

Publication Number Publication Date
SU591457A1 true SU591457A1 (en) 1978-02-05

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SU721852176A SU591457A1 (en) 1972-11-30 1972-11-30 Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane

Country Status (1)

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SU (1) SU591457A1 (en)

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