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.

Date of Patent:
Dec. 28, 1976

Filed:

Feb. 03, 1976
Applicant:
Inventor:

Raffaello Fusco, Milan, I;

Assignee:

Anic S.p.A., Palermo, I;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02B / ; C02C / ;
U.S. Cl.
CPC ...
210 54 ; 8 81 ;
Abstract

In waste-water-treatment, the improvement consisting in causing the precipitation of anionic pollutants by adding to the sewage an aqueous solution of a bis-triarylphosphonium salt. A number of different chemical formulas for such salts are disclosed. It becomes possible to recover dyestuffs from dyeing baths in the textile industries, while solving a severe pollution-preventing problem.


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Fusco, Raffaello. (1976). Method for purifying waste waters which contain anionic-type organic (U.S. Patent No. 4000069). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4000069

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