PL445292A1 - Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene - Google Patents

Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene

Info

Publication number
PL445292A1
PL445292A1 PL445292A PL44529223A PL445292A1 PL 445292 A1 PL445292 A1 PL 445292A1 PL 445292 A PL445292 A PL 445292A PL 44529223 A PL44529223 A PL 44529223A PL 445292 A1 PL445292 A1 PL 445292A1
Authority
PL
Poland
Prior art keywords
nitro compounds
nitrobenzene
water
aqueous solutions
sewage
Prior art date
Application number
PL445292A
Other languages
Polish (pl)
Other versions
PL248286B1 (en
Inventor
Grzegorz Boczkaj
Łukasz Cichocki
Original Assignee
Politechnika Gdańska
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 Politechnika Gdańska filed Critical Politechnika Gdańska
Priority to PL445292A priority Critical patent/PL248286B1/en
Publication of PL445292A1 publication Critical patent/PL445292A1/en
Publication of PL248286B1 publication Critical patent/PL248286B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/325—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups reduction by other means than indicated in C07C209/34 or C07C209/36
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/45—Monoamines
    • C07C211/46—Aniline

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Przedmiotem zgłoszenia jest proces oczyszczania ścieków z nitrobenzenu lub/i innych związków nitrowych charakteryzuję się tym, że oczyszczany roztwór zawierający związki nitrowe redukuje się w układzie reakcyjnym poprzez mieszanie z reagentem w postaci soli zawierającej anion podsiarczynu (S2O42-), korzystnie podsiarczynem sodu lub potasu. W celu zwiększenia efektywności procesu stosuje się czynnik zewnętrzny taki jak wodór lub/i tlenek węgla oraz zastosowanie promieniowania UV.The subject of the application is a process for purifying wastewater from nitrobenzene and/or other nitro compounds, characterized in that the purified solution containing nitro compounds is reduced in a reaction system by mixing with a reagent in the form of a salt containing a hydrosulfite anion (S2O42-), preferably sodium or potassium hydrosulfite. In order to increase the efficiency of the process, an external factor such as hydrogen and/or carbon monoxide and the use of UV radiation are used.

PL445292A 2023-06-21 2023-06-21 Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene PL248286B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL445292A PL248286B1 (en) 2023-06-21 2023-06-21 Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL445292A PL248286B1 (en) 2023-06-21 2023-06-21 Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene

Publications (2)

Publication Number Publication Date
PL445292A1 true PL445292A1 (en) 2024-12-23
PL248286B1 PL248286B1 (en) 2025-11-17

Family

ID=94644326

Family Applications (1)

Application Number Title Priority Date Filing Date
PL445292A PL248286B1 (en) 2023-06-21 2023-06-21 Method of reductive purification of water and aqueous solutions, especially sewage, from nitro compounds, especially nitrobenzene

Country Status (1)

Country Link
PL (1) PL248286B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344531A (en) * 1976-10-05 1978-04-21 Mitsui Toatsu Chem Inc Purification of p-aminophenol
US4139562A (en) * 1978-03-13 1979-02-13 Mitsui Toatsu Chemicals, Inc. Process for purifying crude p-aminophenol
EP0041837A1 (en) * 1980-06-05 1981-12-16 MALLINCKRODT, INC.(a Missouri corporation) Process for the purification of p-aminophenol
ZA813723B (en) * 1980-06-05 1982-06-30 Mallinckrodt Inc Process for the purification of p-aminophenol

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344531A (en) * 1976-10-05 1978-04-21 Mitsui Toatsu Chem Inc Purification of p-aminophenol
US4139562A (en) * 1978-03-13 1979-02-13 Mitsui Toatsu Chemicals, Inc. Process for purifying crude p-aminophenol
EP0041837A1 (en) * 1980-06-05 1981-12-16 MALLINCKRODT, INC.(a Missouri corporation) Process for the purification of p-aminophenol
ZA813723B (en) * 1980-06-05 1982-06-30 Mallinckrodt Inc Process for the purification of p-aminophenol

Also Published As

Publication number Publication date
PL248286B1 (en) 2025-11-17

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