Bromine Compounds Limited

Landa Labs (2012) Ltd.

Ronny Costi

Hanan Sertchook

Ben-Zion Magnes

Iris Ben-David

Ran Elazari

Neta Cohen

Gilad Reut Gelbart

Ronen Naim

A process for recovering gold from a refractory gold ore, comprising the steps of: electrolyzing a mixture consisting of the ore particles and an aqueous bromide solution in an electrolytic cell having anode and cathode, wherein bromine is produced at the anode by oxidation of the bromide, thereby dissolving gold in the aqueous phase; separating the ore particles from the aqueous phase to obtain a leach liquor; adjusting the pH of the leach liquor to the alkaline range to produce a gold-containing precipitate; collecting the gold-containing precipitate and recycling a bromide-containing barren solution for reuse as an aqueous bromide feed solution.

Process for recovering gold from ores

A method is disclosed for mounting and cooling a circuit component having a plurality of contacts. The method comprises mounting the circuit component on a rigid substrate of a thermally conductive material having and electrically insulating regions with a circuit board arranged between the circuit component and the substrate. The circuit board, which carries conductive traces that terminate in contact pads, is secured to the substrate with at least some of the contact pads on the circuit board disposed on the side of the board facing the substrate, some of which being bonded to the substrate. To establish both an electrical and a thermal connection between the contacts of the circuit component and the contact pads bonded to the substrate, blind holes are formed in the base of the circuit board, each hole terminating at a respective one of the contact pads bonded to the substrate.

Method and apparatus for mounting and cooling a circuit component

The invention relates to an electrolyte solution suitable for use in a zinc-bromine battery, comprising zinc bromide and a mixture of at least two complexing agents selected from the group consisting of 1-R-2-methyl pyridinium bromide and 1-R-3-methyl pyridinium bromide salts, wherein each of Rand Ris independently an alkyl group having not less than five carbon atoms.

Additives for a flow battery

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Gedera, Israel

Ronny Costi