SU1317877A1 - METHOD OF ISOLATION OF 2,6-NAPHTHALINDICARBONIC ACID - Google Patents
METHOD OF ISOLATION OF 2,6-NAPHTHALINDICARBONIC ACIDInfo
- Publication number
- SU1317877A1 SU1317877A1 SU3814200/04A SU3814200A SU1317877A1 SU 1317877 A1 SU1317877 A1 SU 1317877A1 SU 3814200/04 A SU3814200/04 A SU 3814200/04A SU 3814200 A SU3814200 A SU 3814200A SU 1317877 A1 SU1317877 A1 SU 1317877A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pentanone
- acid
- naphthalindicarbonic
- isolation
- washing
- Prior art date
Links
Landscapes
- Extraction Or Liquid Replacement (AREA)
Abstract
Способ выделения 2,6-нафталиндикарбоновой кислоты из ее смеси с 1,8-нафталиндикарбоновой кислотой путем ее экстрагирования органическим растворителем при нагревании с последующим фильтрованием и промывкой, отличающийся тем, что, с целью упрощения процесса, в качестве органического растворителя используют пентанон-3 в 10 - 80-кратном количестве, при этом смесь перед экстрагированием подвергают кипячению в среде пентанона-3 и промывку осуществляют также с помощью пентанона-3.The method of separation of 2,6-naphthalene dicarboxylic acid from its mixture with 1,8-naphthalene dicarboxylic acid by extracting it with an organic solvent when heated, followed by filtration and washing, characterized in that, to simplify the process, pentanone-3 is used as an organic solvent 10 - 80-fold amount, while the mixture before extraction is subjected to boiling in the environment of pentanone-3 and washing is also carried out with the help of pentanone-3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3814200/04A SU1317877A1 (en) | 1984-11-20 | 1984-11-20 | METHOD OF ISOLATION OF 2,6-NAPHTHALINDICARBONIC ACID |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3814200/04A SU1317877A1 (en) | 1984-11-20 | 1984-11-20 | METHOD OF ISOLATION OF 2,6-NAPHTHALINDICARBONIC ACID |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1317877A1 true SU1317877A1 (en) | 2000-02-20 |
Family
ID=60543280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU3814200/04A SU1317877A1 (en) | 1984-11-20 | 1984-11-20 | METHOD OF ISOLATION OF 2,6-NAPHTHALINDICARBONIC ACID |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1317877A1 (en) |
-
1984
- 1984-11-20 SU SU3814200/04A patent/SU1317877A1/en active
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