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:
Feb. 18, 1992
Filed:
Nov. 05, 1990
Applicant:
Inventors:
Job Dijkhuis, Leiden, NL;
Anthonie Van Sandwijk, Leiden, NL;
Assignee:
Hoogovens Groep BV, Ijmuiden, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ;
U.S. Cl.
CPC ...
423109 ; 423150 ; 75961 ;
Abstract
A method for selectively separating Zn from an acidic aqueous solution containing ions of Zn and Fe obtained by leaching of blast furnace dust using hydrochloric acid comprises first precipitating Fe from the solution and then treating the resultent Zn-containing solution with an alkali to precipitate Zn. The Zn-containing solution is treated in two stages; in the first precipitation step the pH is adjusted to from 4.0 to 4.3.
Quick Actions:
Dijkhuis, Job. (1992). Method for selectively separating a non-ferrous metal (U.S. Patent No. 5089242). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5089242
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile