SU549430A1 - The method of sewage treatment for the production of naphthalium-2-sulfonic acid - Google Patents
The method of sewage treatment for the production of naphthalium-2-sulfonic acidInfo
- Publication number
- SU549430A1 SU549430A1 SU2176988A SU2176988A SU549430A1 SU 549430 A1 SU549430 A1 SU 549430A1 SU 2176988 A SU2176988 A SU 2176988A SU 2176988 A SU2176988 A SU 2176988A SU 549430 A1 SU549430 A1 SU 549430A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- production
- naphthalium
- sulfonic acid
- sewage treatment
- naphthalene
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
используют на стадии щелочного плавлени производства 2-нафтола, а промывные воды, содержащие не более 1 вес. % нафталин-2сульфоната натри , подают на стадию гидролиза сульфомассы производства нафталин-2сульфокислоты . Выход щий из центрифуги маточник направл ют на смещение с сульфитными сточными водами производства-2нафтола с последующим выпариванием и сушкой. В результате получают сульфатсульфнтные соли с содержанием нафталин-2-сульфоната натри не более 0,1 вес. %.used at the stage of alkaline melting of the production of 2-naphthol, and wash water containing not more than 1 weight. % naphthalene-2sulphonate sodium, served on the stage of hydrolysis of sulphatic production of naphthalene-2sulphonic acid. The mother liquor coming out of the centrifuge is sent to dislodge with sulfite effluent from production of 2 naphthol, followed by evaporation and drying. The result is a sulfate sulfate salt with a content of sodium naphthalene-2-sulfonate not more than 0.1 weight. %
Предлагаемый способ позвол ет достичь значительной экономии от наиболее полного извлечени товарного нафталин-2-сульфоната натри ; получить сульфатсульфитные соли улучшенного качества и устранить загр знение воздушной среды пылью нафталин2-сульфоната натри .The proposed method allows to achieve significant savings from the most complete recovery of marketable sodium naphthalene-2-sulfonate; obtain improved sulfate sulfite salts and eliminate the pollution of the air environment with sodium naphthalene2-sulfonate dust.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2176988A SU549430A1 (en) | 1975-09-30 | 1975-09-30 | The method of sewage treatment for the production of naphthalium-2-sulfonic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2176988A SU549430A1 (en) | 1975-09-30 | 1975-09-30 | The method of sewage treatment for the production of naphthalium-2-sulfonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
SU549430A1 true SU549430A1 (en) | 1977-03-05 |
Family
ID=20633213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2176988A SU549430A1 (en) | 1975-09-30 | 1975-09-30 | The method of sewage treatment for the production of naphthalium-2-sulfonic acid |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU549430A1 (en) |
-
1975
- 1975-09-30 SU SU2176988A patent/SU549430A1/en active
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