The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
Jul. 17, 1998
Applicant:
Inventors:
Armand Verbueken, s'Gravenwezel, BE;
Domien Sluyts, Hoevenen, BE;
Werner Verhoeven, Kalmthout, BE;
Wilhelm Nehoda, Brasschaat, BE;
Assignee:
Bayer AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210634 ; 210909 ; 548152 ; 548166 ; 548167 ; 548177 ;
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.