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:
May. 03, 2022
Filed:
Aug. 24, 2016
Biosigma S.a., Santiago, CL;
Roberto Andres Bobadilla Fazzini, Santiago, CL;
BIOSIGMA S.A., Santiago, CL;
Abstract
Present invention describes a biotechnological procedure to remove magnetic sulfur impurities from iron concentrate, wherein includes: to bioleach iron concentrate ores agglomerated in heaps under temperature condition between 5 and 35° C., inoculating the iron concentrate ores withcultures, with an inoculum concentration 10and 10cel/g and addition of water supplemented with nitrogen and phosphorous source (0.01 to 0.5 g (NH)HPO/L), without potassium addition, adjusting pH between 1.0 and 9.0, and a feeding rate between 5 and 15 L/h/m; this procedure allows a removal efficiency above 80% in 21 days, with a maximum iron loss of 3%.