公开(公告)号：US20220396726A1

公开(公告)日：2022-12-15

申请号：US17776408

申请日：2020-11-09

Applicant: BROMINE COMPOUNDS LTD.

Inventor： Elizabeta SHANDALOV ,  Mohamad MASARWA ,  David COHEN

IPC: C09K8/528 ,  C09K8/84

Abstract: The invention relates to a wellbore fluid, which is a monovalent brine comprising one or more alkali bromide salt(s) and one or more TCT-reducing additive(s) selected from the group consisting of alkali nitrates. A method of treating a subterranean formation, comprising placing the wellbore fluids of the invention in a wellbore in the subterranean formation is also provided.

公开(公告)号：US20190292628A1

公开(公告)日：2019-09-26

申请号：US16302204

申请日：2017-05-17

Applicant: BROMINE COMPOUNDS LTD. ,  TENOVA ADVANCED TECHNOLOGIES LTD

Inventor： Keren LARMOUR-SHIP ,  Tal FABIAN ,  Alan MILLER ,  Sharon KRUMBEIN RUBIN ,  Elizabeta SHANDALOV ,  Mira BERGSTEIN FREIBERG

IPC: C22B3/00

Abstract: A process for recovering gold from a gold-containing raw material, comprising leaching the gold-containing material with an aqueous solution comprising elemental bromine and bromide source to form a pregnant leach solution with the gold dissolved therein; separating said pregnant leach solution from the gold-depleted raw material, removing elemental bromine from said pregnant leach solution, extracting the gold from the pregnant leach solution in an acidic environment into an organic extractant, to form a gold-loaded extract and bromide-containing raffmate, stripping the extract with an alkaline aqueous solution to form a gold-bearing aqueous solution, generating gold (Au0) and treating bromide-containing stream(s) to produce recyclable elemental bromine.