BG50877A1 - Method for purification of waste solutions containing benzyl alcohol and benzaldehyde - Google Patents

Method for purification of waste solutions containing benzyl alcohol and benzaldehyde

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Publication number
BG50877A1
BG50877A1 BG9279390A BG9279390A BG50877A1 BG 50877 A1 BG50877 A1 BG 50877A1 BG 9279390 A BG9279390 A BG 9279390A BG 9279390 A BG9279390 A BG 9279390A BG 50877 A1 BG50877 A1 BG 50877A1
Authority
BG
Bulgaria
Prior art keywords
benzaldehyde
benzyl alcohol
purification
solutions containing
containing benzyl
Prior art date
Application number
BG9279390A
Inventor
Stojanka G Khristoskova
Ognjan K Argirov
Jordan D Kostadinov
Original Assignee
Z Khemus
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 Z Khemus filed Critical Z Khemus
Priority to BG9279390A priority Critical patent/BG50877A1/en
Publication of BG50877A1 publication Critical patent/BG50877A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

By this method, the effluent waters are de-coloured, and a road conversion of the toxic substances - benzyl alcohol and benzaldehyde - is conducted in non-toxic benzoic acid, which is extracted from the liquid phase and may be used as a commercial product. The effluent solutions are alkalised in advance to pH 9-12 at continuous mixing in the presence of a solid nickel oxide, derived from nickel chloride and sodium hypo chlorate in a weight proportion of 1:2 to 1:4. After that, they are acidified to pH 3 and the purified solutions are neutralized with a sodium base.
BG9279390A 1990-09-05 1990-09-05 Method for purification of waste solutions containing benzyl alcohol and benzaldehyde BG50877A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9279390A BG50877A1 (en) 1990-09-05 1990-09-05 Method for purification of waste solutions containing benzyl alcohol and benzaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9279390A BG50877A1 (en) 1990-09-05 1990-09-05 Method for purification of waste solutions containing benzyl alcohol and benzaldehyde

Publications (1)

Publication Number Publication Date
BG50877A1 true BG50877A1 (en) 1992-12-15

Family

ID=3923237

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9279390A BG50877A1 (en) 1990-09-05 1990-09-05 Method for purification of waste solutions containing benzyl alcohol and benzaldehyde

Country Status (1)

Country Link
BG (1) BG50877A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010761A (en) * 2017-05-27 2017-08-04 南京工业大学 Combined purification method for o/p-chlorobenzaldehyde rectification residual liquid and process wastewater
CN107055743A (en) * 2017-05-27 2017-08-18 南京工业大学 Catalytic purification method for rectification residual liquid in benzaldehyde preparation by toluene chlorination hydrolysis method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010761A (en) * 2017-05-27 2017-08-04 南京工业大学 Combined purification method for o/p-chlorobenzaldehyde rectification residual liquid and process wastewater
CN107055743A (en) * 2017-05-27 2017-08-18 南京工业大学 Catalytic purification method for rectification residual liquid in benzaldehyde preparation by toluene chlorination hydrolysis method
CN107010761B (en) * 2017-05-27 2020-03-10 南京工业大学 Combined purification method for o/p-chlorobenzaldehyde rectification residual liquid and process wastewater
CN107055743B (en) * 2017-05-27 2020-04-21 南京工业大学 Catalytic purification method for rectification residual liquid in benzaldehyde preparation by toluene chlorination hydrolysis method

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