RU2002102070A - METHOD FOR PROCESSING ADIPINIC ACID CRYSTALS - Google Patents

METHOD FOR PROCESSING ADIPINIC ACID CRYSTALS

Info

Publication number
RU2002102070A
RU2002102070A RU2002102070/04A RU2002102070A RU2002102070A RU 2002102070 A RU2002102070 A RU 2002102070A RU 2002102070/04 A RU2002102070/04 A RU 2002102070/04A RU 2002102070 A RU2002102070 A RU 2002102070A RU 2002102070 A RU2002102070 A RU 2002102070A
Authority
RU
Russia
Prior art keywords
liquid medium
crystals
adipic acid
processing
acid crystals
Prior art date
Application number
RU2002102070/04A
Other languages
Russian (ru)
Other versions
RU2211828C1 (en
Inventor
Альбер ФЕЛИКС
Ив РОК
Original Assignee
Родиа Полиамид Интермедиэйтс
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
Priority claimed from FR9908591A external-priority patent/FR2795721B1/en
Application filed by Родиа Полиамид Интермедиэйтс filed Critical Родиа Полиамид Интермедиэйтс
Application granted granted Critical
Publication of RU2211828C1 publication Critical patent/RU2211828C1/en
Publication of RU2002102070A publication Critical patent/RU2002102070A/en

Links

Claims (8)

1. Способ получения кристаллов адипиновой кислоты из адипиновой кислоты, получаемой кристаллизацией, отличающийся тем, что он состоит в диспергировании кристаллов адипиновой кислоты, собираемых на выходе процесса кристаллизации в жидкой среде путем перемешивания этой жидкой среды с последующим отделением названных кристаллов от названной жидкой среды.1. A method of obtaining crystals of adipic acid from adipic acid obtained by crystallization, characterized in that it consists in dispersing crystals of adipic acid collected at the exit of the crystallization process in a liquid medium by mixing this liquid medium, followed by separation of these crystals from the said liquid medium. 2. Способ по п.1, отличающийся тем, что жидкой средой является вода или смесь воды с уксусной кислотой.2. The method according to claim 1, characterized in that the liquid medium is water or a mixture of water with acetic acid. 3. Способ по п.1 или 2, отличающийся тем, что температура жидкой среды составляет от 20 до 70°С.3. The method according to claim 1 or 2, characterized in that the temperature of the liquid medium is from 20 to 70 ° C. 4. Способ по одному из пп.1-3, отличающийся тем, что массовая концентрация адипиновой кислоты в жидкой среде выше или равна 5%.4. The method according to one of claims 1 to 3, characterized in that the mass concentration of adipic acid in a liquid medium is higher or equal to 5%. 5. Способ по п.4, отличающийся тем, что массовая концентрация адипиновой кислоты в жидкой среде составляет от 5 до 60%.5. The method according to claim 4, characterized in that the mass concentration of adipic acid in a liquid medium is from 5 to 60%. 6. Способ по одному из пп.1-5, отличающийся тем, что кристаллы адипиновой кислоты перед диспергированием имеют средний размер в пределах от 100 до 1000 мкм.6. The method according to one of claims 1 to 5, characterized in that the crystals of adipic acid before dispersion have an average size in the range from 100 to 1000 microns. 7. Способ по одному из пп.1-6, отличающийся тем, что кристаллы, отделенные от дисперсии, имеют размер в пределах от 50 до 1000 мкм.7. The method according to one of claims 1 to 6, characterized in that the crystals separated from the dispersion have a size in the range from 50 to 1000 microns. 8. Способ по одному из пп.1-7, отличающийся тем, что перед отделением обработанных кристаллов жидкую среду охлаждают.8. The method according to one of claims 1 to 7, characterized in that before the separation of the processed crystals, the liquid medium is cooled.
RU2002102070/04A 1999-06-29 2000-06-28 Method of treating adipic acid crystals RU2211828C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908591A FR2795721B1 (en) 1999-06-29 1999-06-29 PROCESS FOR THE MANUFACTURE OF ADIPIC ACID
FR9908591 1999-06-29

Publications (2)

Publication Number Publication Date
RU2211828C1 RU2211828C1 (en) 2003-09-10
RU2002102070A true RU2002102070A (en) 2004-07-10

Family

ID=9547672

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002102070/04A RU2211828C1 (en) 1999-06-29 2000-06-28 Method of treating adipic acid crystals

Country Status (18)

Country Link
US (1) US6822117B1 (en)
EP (1) EP1196369B1 (en)
JP (1) JP3806351B2 (en)
KR (1) KR100638130B1 (en)
CN (1) CN1173919C (en)
AR (1) AR024589A1 (en)
BR (1) BR0012028B1 (en)
CA (1) CA2377179A1 (en)
CZ (1) CZ20014610A3 (en)
DE (1) DE60009074T2 (en)
ES (1) ES2213592T3 (en)
FR (1) FR2795721B1 (en)
PL (1) PL356988A1 (en)
RU (1) RU2211828C1 (en)
SK (1) SK19082001A3 (en)
TW (1) TWI254041B (en)
UA (1) UA73514C2 (en)
WO (1) WO2001000557A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2829761B1 (en) * 2001-09-18 2004-02-20 Rhodia Polyamide Intermediates PROCESS FOR PRODUCING ADIPIC ACID CRYSTALS AND CRYSTALS OBTAINED THEREBY
FR2946646B1 (en) * 2009-06-16 2012-09-21 Rhodia Operations PROCESS FOR PRODUCING ADIPIC ACID CRYSTALS
CN106810442B (en) 2016-12-26 2018-04-13 河南神马尼龙化工有限责任公司 A kind of production method of high-quality adipic acid
JP2021506914A (en) * 2017-12-22 2021-02-22 ビーエイエスエフ・ソシエタス・エウロパエアＢａｓｆ Ｓｅ How to remove nitrate compounds from adipic acid

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123635A (en) * 1964-03-03 Agitation of adipic acid crystals to
NL223106A (en) * 1957-12-09
US4375552A (en) * 1969-01-31 1983-03-01 C. P. Hall Company Nitric acid process for production of adipic acid from hydrocarbons
US3886153A (en) * 1974-01-09 1975-05-27 Fmc Corp Purification of cyanuric acid
AT332362B (en) * 1974-10-10 1976-09-27 Erz & Stahl Ges M B H PROCESS FOR THE EXTRACTION OF MONOCARBON REESTERS AND DICARBON ACIDS OR THEIR ESTERS FROM THE WASTE SALINE SOLUTIONS FROM CYCLOHEXANONE PRODUCTION
US4254283A (en) * 1979-06-07 1981-03-03 Monsanto Company Process for preparing adipic acid with recovery of glutaric and succinic acids
US5166421A (en) * 1991-03-18 1992-11-24 E. I. Du Pont De Nemours And Company Process for the manufacture of adipic acid
US5471001A (en) * 1994-12-15 1995-11-28 E. I. Du Pont De Nemours And Company Crystallization of adipic acid
US5710325A (en) * 1996-11-01 1998-01-20 E. I. Du Pont De Nemours And Company Manufacture of adipic acid
DE19705329A1 (en) * 1997-02-12 1998-08-13 Basf Ag Dicarboxylic acid crystals

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