Title:
METHOD FOR OBTAINING TREATED DOLOMITE AS A REMEDIATION AGENT FOR MINING AND METALLURGICAL EFFLUENTS AND MINE WATER
Document Type and Number:
WIPO Patent Application WO/2014/031013
Kind Code:
A3
Abstract:
The invention relates to a method for obtaining treated dolomite for use as a remediation agent for the neutralisation and adsorption treatment of mining and metallurgical effluents and mine water, said method consisting of the following steps: reducing the dolomite particle size (with a purity percentage of between 80 and 99.9 %) by means of primary and secondary crushing; wet-grinding the dolomite mineral; decanting the homogeneous pulp; drying the dolomite pulp; analysing the ground dolomite sample, by means of granulometry, using Tyler series (ASTM) meshes corresponding to meshes having a particle size range from -200 to -325, corresponding to particle sizes of 45 micrometres and 37 micrometres respectively; performing a roasting (calcination) treatment in the temperature range of 900°C - 1100°C, in order to break down the very pure dolomite into calcium carbonate, calcium oxide and magnesium oxide compounds.
Inventors:
FLORES CHÁVEZ SILVANA LUZMILA (PE)
ZEGARRA LUNA EDISON GASTULO (PE)
TINOCO MORELOS OSCAR EUSEBIO (PE)
ZEGARRA LUNA EDISON GASTULO (PE)
TINOCO MORELOS OSCAR EUSEBIO (PE)
Application Number:
PCT/PE2013/000005
Publication Date:
April 24, 2014
Filing Date:
July 01, 2013
Export Citation:
Assignee:
FLORES CHÁVEZ SILVANA LUZMILA (PE)
ZEGARRA LUNA EDISON GASTULO (PE)
TINOCO MORELOS OSCAR EUSEBIO (PE)
ZEGARRA LUNA EDISON GASTULO (PE)
TINOCO MORELOS OSCAR EUSEBIO (PE)
International Classes:
C22B1/14; C02F1/28; C22B1/02; C02F103/10
Other References:
FLORES CHAVEZ, S.L.: "Tratamiento of remediaci6n of efluentes metalurgicos con enfasis in the abatimiento of cobre con dolomita", UNIVERSIDAD NACIONAL MAYOR OF SAN MARCOS., 2009, Retrieved from the Internet [retrieved on 20140116]
STASZCUK, P. ET AL.: "Investigations on the adsorption properties and porosity of naural and thermally treated dolomite samples", POWDER TECHNOLOGY, vol. 92, 1997, pages 253 - 257
WALKER, G.M. ET AL.: "Kinetics of a reactive dye adsorption onto dolomitic sorbents", WATER RESEARCH, vol. 37, 2003, pages 2081 - 2089
STASZCUK, P. ET AL.: "Investigations on the adsorption properties and porosity of naural and thermally treated dolomite samples", POWDER TECHNOLOGY, vol. 92, 1997, pages 253 - 257
WALKER, G.M. ET AL.: "Kinetics of a reactive dye adsorption onto dolomitic sorbents", WATER RESEARCH, vol. 37, 2003, pages 2081 - 2089
Download PDF: