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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.:

US 4081401 B1

PDFFull Text
Date of Patent:
Mar. 28, 1978

Filed:

Oct. 28, 1976

Process for producing adsorbent

Applicant:
Inventors:

Shinsuke Takegami, Okayama, JA;

Takashi Korenaga, Okayama, JA;

Chiharu Yoshinaga, Okayama, JA;

Assignee:

Japan Exlan Company Limited, Osaka, JA;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

Patrick P Garvin

Assistant Examiner:

William G Wright

Int. Cl.
CPC ...
B01J / ; C02B / ; B01D / ; C04B / ;
U.S. Cl.
CPC ...
252428 ; 252426 ; 210 40 ; 210192 ; 1063 / ; 1062 / ;
Abstract

The present invention relates to a process for producing an adsorbent for the treatment of waste water, suitable for column packing, which is composed of a granular material obtained by subjecting an aqueous mixture of an activated sludge-containing material and the water-soluble primary condensate of a formaldehyde-type resin and/or an aldehyde compound to a curing treatment with an acid catalyst and a granulating operation. The adsorbent can advantageously be used in disposing of industrial waste water containing ionic or nonionic water pollutants such as heavy metal ions, dyes, surfactants, high molecular weight coagulants and mineral oils.

Find Patent Forward Citations

Takegami, Shinsuke. (1978). Process for producing adsorbent (U.S. Patent No. 4081401). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4081401

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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