Financing

R&D period: years 2007–2012. Budget financing and extra-budgetary resources attraction.

Brief description

High dispersive capacity of bornylacetate, used during auriferous ores disintegration, ensures enhancing the minerals breakthrough level and upgrading the gold extraction effectiveness at its flotation processing. Being an amicyclic type reagent, bornylacetate intensifies tiny gold flotation due to foam-producing agent good dispergation during disintegration and facilitates alkaline solution creation during subsequent cyanation processing.

The technology has undergone tests and is implemented into industrial production.

The technology is implemented at “Ros DV” LLC enterprise, Official document certifying the research results implementation, concerning ores processing based on bornylacetate usage, dated 26.02.2007.

Protection documents

• Patent RU 2309799 dated 29.05.2006. Technique for tiny dispersed gold extraction from auriferous ores / Aleksandrova T. N., Yatlukova N. G., Litvinova N. M., Bilevich I. Ya.

The known analogues are characterized by high electric energy consumption at crushing and disintegration stages; grains not sufficient opening in material going to metallurgical processing; reagents introduction during disintegration leads to acid environment creation in the pulp, which is impeding material subsequent cyaniding.

Competitive advantages

Marketing studies were not conducted.

The technology can be used for processing of rebellious ores with tiny ingrained gold.

Due to action of applied reagent, introduced during ore disintegration and preparing the auriferous material immediately prior to standard collector action, the flotation and cyanation processes effectiveness is being improved.

The proposed technology permits to raise the tiny dispersed gold extraction degree and improve the concentrate quality. The raise in effectiveness and operational economy is ensured by energy consumption reduction during ores disintegration and by mills productive capacity elevation by 20-25 %.

Guaranteed economic effect is achieved by:

• raising the technologically ready class output by 6 %;
• raising the tiny dispersed gold extraction degree to 98 %.

Social effect is achieved by working conditions improvement due to ecologically safe reagent usage on the disintegration stage.

Scientific significance

Based on experimentally established set of reagents, which facilitate the granulometric contents stabilization of the material being disintegrated, effective complex auxiliar ingredients have been proposed for disintegration process intensification. Rational methods are designed to intensify the process of rebellious auriferous ores disintegration with the use of ecologically safe auxiliar ingredient.

The scientific background level is academic.

There is a possibility to further enhance the product and secure its additional applications.

“Know-how” is present and rights for it may be transferred.

Examples of practical application

The technology is being used in mining industry to ensure effectiveness and safety of the mineral raw materials processing.

Use in production: The technology has undergone testing, adaptation, and implementation during ore sample technologic properties evaluation at the Durminskoe gold-silver deposit.

Cost and timing of commercial conditioning: The Institute has brought to commercial stage the created technology, which can make it possible to raise the effectiveness and safety standards of minerals processing.

Degree of readiness to industrial application: Complete readiness for use.

Availability of actual or potential buyers of technologies or licenses: “Ros DV” LLC.

Sales market geography

Main market segments are enterprises of the Russian Far Eastern region.

Sales market size

Sales market size is 30 million rubles.

Sales promotion period: implementation commencing date is year 2007.

Developer

Russian Academy of Science Far Eastern Branch Mining Institute
(RAS FEB MI (IGD DVO RAN))