RU2006115439A - EXTRACTION METHOD FOR RECYCLING ANILINE FROM CONCENTRATED AQUEOUS SOLUTIONS - Google Patents

EXTRACTION METHOD FOR RECYCLING ANILINE FROM CONCENTRATED AQUEOUS SOLUTIONS Download PDF

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Publication number
RU2006115439A
RU2006115439A RU2006115439/04A RU2006115439A RU2006115439A RU 2006115439 A RU2006115439 A RU 2006115439A RU 2006115439/04 A RU2006115439/04 A RU 2006115439/04A RU 2006115439 A RU2006115439 A RU 2006115439A RU 2006115439 A RU2006115439 A RU 2006115439A
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RU
Russia
Prior art keywords
organic solvent
aniline
aqueous solutions
concentrated aqueous
extraction method
Prior art date
Application number
RU2006115439/04A
Other languages
Russian (ru)
Other versions
RU2327683C2 (en
Inventor
Борис Александрович Агафонов (RU)
Борис Александрович Агафонов
Алексей Николаевич Савельев (RU)
Алексей Николаевич Савельев
Николай Иванович Савельев (RU)
Николай Иванович Савельев
Галина Георгиевна Тихонова (RU)
Галина Георгиевна Тихонова
Николай В чеславович Хитров (RU)
Николай Вячеславович Хитров
Original Assignee
Открытое акционерное общество "Химпром" (RU)
Открытое акционерное общество "Химпром"
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 Открытое акционерное общество "Химпром" (RU), Открытое акционерное общество "Химпром" filed Critical Открытое акционерное общество "Химпром" (RU)
Priority to RU2006115439/04A priority Critical patent/RU2327683C2/en
Publication of RU2006115439A publication Critical patent/RU2006115439A/en
Application granted granted Critical
Publication of RU2327683C2 publication Critical patent/RU2327683C2/en

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)

Claims (3)

1. Экстракционный способ рекуперации анилина из концентрированных водных растворов химико-технологических процессов получения или использования анилина путем его экстракции органическим растворителем и последующей регенерации экстрагента, отличающийся тем, что экстракцию осуществляют органическим растворителем, присутствующим в реакционных массах химико-технологического процесса, а регенерацию органического растворителя производят методом ректификации полученного экстракта.1. The extraction method for the recovery of aniline from concentrated aqueous solutions of chemical-technological processes for the preparation or use of aniline by extraction with an organic solvent and subsequent regeneration of the extractant, characterized in that the extraction is carried out with an organic solvent present in the reaction masses of the chemical-technological process, and the regeneration of an organic solvent produced by rectification of the obtained extract. 2. Способ по п.1, отличающийся тем, что при ректификации экстракта получают кубовую жидкость, содержащую 10-40 мас.% органического растворителя, который возвращают на стадию выделения органического растворителя основного химико-технологического процесса.2. The method according to claim 1, characterized in that upon distillation of the extract, bottoms are obtained containing 10-40 wt.% Organic solvent, which is returned to the stage of separation of the organic solvent of the main chemical process. 3. Способ по п.1, отличающийся тем, что в производстве анилина методом восстановления нитробензола водородом в качестве растворителя используют побочно образующийся бензол, регенерацию которого осуществляют в ректификационной колонне основного производства.3. The method according to claim 1, characterized in that in the production of aniline by the method of reducing nitrobenzene with hydrogen, the side-formed benzene is used as a solvent, the regeneration of which is carried out in a distillation column of the main production.
RU2006115439/04A 2006-05-04 2006-05-04 Aniline recuperation method RU2327683C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006115439/04A RU2327683C2 (en) 2006-05-04 2006-05-04 Aniline recuperation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2006115439/04A RU2327683C2 (en) 2006-05-04 2006-05-04 Aniline recuperation method

Publications (2)

Publication Number Publication Date
RU2006115439A true RU2006115439A (en) 2007-11-20
RU2327683C2 RU2327683C2 (en) 2008-06-27

Family

ID=38959127

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2006115439/04A RU2327683C2 (en) 2006-05-04 2006-05-04 Aniline recuperation method

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RU (1) RU2327683C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10173969B2 (en) * 2014-02-20 2019-01-08 Covestro Deutschland Ag Production of aniline via anthranilate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10173969B2 (en) * 2014-02-20 2019-01-08 Covestro Deutschland Ag Production of aniline via anthranilate

Also Published As

Publication number Publication date
RU2327683C2 (en) 2008-06-27

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Effective date: 20090505