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. 05, 1977
Filed:
Oct. 31, 1975
Applicant:
Inventors:
Robert Anthony Fishburn, Birmingham, EN;
Frank Ernest Ravault, Birmingham, EN;
Assignee:
Foseco International Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
75 25 ; 264117 ;
Abstract
A method of bonding particulate material, especially such material which contains iron or zinc oxides, e.g. steelmaking fume or blast furnace dust, by treating the material with at least aqueous formic acid to produce an acid solution containing metal ions, and then allowing or causing the pH of the solution to increase so as to form a metal hydroxide to bond the material to consolidated form.