Process for the purification of waste waters containing organic

Details Process for the purification of waste waters containing organic Process for the purification of waste waters containing organic

1998-07-17

2000-04-04

Hruskoci, Peter A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210909, 548152, 548166, 548167, 548177, C02F 126

Patent

active

060456965

ABSTRACT:
This invention relates to a process for the purification of waste waters containing organic and, should the situation arise, inorganic sulphur compounds, which waste waters contain a proportion of mercaptobenzothiazole and/or derivatives thereof and, should the situation arise, a proportion of benzothiazole and/or derivatives thereof and/or mercaptobenzimidazole and/or derivatives thereof and, should the situation arise, thiosulphate, whereby the waste waters are treated with an extracting agent comprising salts of aliphatic amines and aliphatic and/or aromatic hydrocarbons.

REFERENCES:
patent: 3966594 (1976-06-01), Ohkawa et al.
patent: 4127454 (1978-11-01), Torii et al.
patent: 4751301 (1988-06-01), Wiist
patent: 4762931 (1988-08-01), Denecker et al.
patent: 5015456 (1991-05-01), Verbueken et al.
patent: 5705074 (1998-01-01), Brient
"Recovery of Aromatic Sulfonic Acids from Aqueous Solutions", Lodaya, M.P. and Sharma, M.M., Separ. Proc. Technol. 6 (1985), pp. 34-39.
"Recovery of Low-Molecular Organic Compounds from Complex Aqueous Mixtures by Extraction", Schugerl, K. and Gegener, W., Chem. Ing. Techn. 61 (1989), No. 10, pp. 796-804.

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