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:
Mar. 18, 1986
Filed:
Feb. 17, 1981
Applicant:
Inventors:
Michael Robinson, Wooton, GB;
Harry B Wilson, North Thoresby, GB;
Assignee:
SCM Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
75 / ; 75112 ; 75113 ; 75121 ; 423-3 ; 423 59 ; 423 63 ; 423 74 ; 423 75 ; 423111 ; 423113 ; 423137 ; 423149 ; 423292 ; 423297 ; 423341 ; 423343 ; 423492 ; 423493 ; 423496 ;
Abstract
A process for the beneficiation of an iron-containing material is carried out by first chlorinating the iron-containing material. Oxidation of ferrous chloride in the effluent gas from the chlorination is carried out under controlled conditions of oxygen supply so that more than 50% but less than 100% of the ferrous chloride is oxidized. In this way chlorine gas is separated from the process stream in a relatively pure form which can be utilized in a continuous process by recycle to another chlorination.