PROCEDURE FOR LEACHING PRECIOUS METALS FROM ORE AT PRESENCE OF HYDROCHLORIC ACID Russian patent published in 2010 - IPC C22B3/10 

Abstract RU 2395594 C2

FIELD: metallurgy.

SUBSTANCE: invention refers to procedure for leaching precious metal from ore containing said precious metal. The procedure consists of three stages: leaching ore at presence of hydrochloric acid with production of soluble chloride of metal in a solution for leaching, in adding sulphur dioxide into the solution for leaching, in extracting metal sulphate or metal sulphite from the solution for leaching and in regenerating hydrochloric acid. As ore there can be used oxide ore of non-ferrous metal, such as oxide zinc ore, laterite nickel ore, such as saprolite or limonite, sulphide ore or titanium ore. Precious metal is chosen from a group including Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, metals of platinum group and gold. Precious metal or less precious metal, such as magnesium, can be a metal in composition of metal sulphate or metal sulphite. Regenerated hydrochloric acid is directed into a re-circulation system in the process of leaching.

EFFECT: increased efficiency of process.

45 cl, 36 dwg, 5 tbl

Similar patents RU2395594C2

Title Year Author Number
PROCEDURE FOR LEACHING VALUABLE METALS OUT OF ORE AT PRESENCE OF HYDROCHLORIC ACID 2005
  • Smit Jan-T'Erd
  • Stejl Jokhann-Dju-Tojt
RU2423534C2
PROCEDURE FOR LEACHING AT PRESENCE OF HYDROCHLORIC ACID FOR REGENERATION OF VALUABLE METAL FROM ORE 2006
  • Jokhan Dju-Tojt Stejl
  • Jan-Terd Smit
RU2424332C2
RECOVERY OF NICKEL, COBALT AND OTHER BASE METALS MADE OF LATERITIC ORE WITH USAGE OF HEAP LEACHING AND PRODUCT, CONTAINING NICKEL, COBALT AND OTHER METALS AND RECEIVED FROM LATERITIC ORE 2006
  • Perejra Zhejsa Santos Di Pontes
  • Gobbo Oliver Renato Di Arauzhu
RU2355793C2
METHOD OF NICKEL RECOVERY FROM Ni-Fe-Mg LATERINE ORE WITH HIGH CONTENT OF MAGNESIUM 1996
  • Djuivestein Vil'Jam Pi. Si.
  • Lastra Manuehl' R.
  • Liu Khaujuan
RU2149910C1
EXTRACTION METHOD OF NICKEL AND COBALT FROM SILICATE NICKEL-COBALT ORES 2011
  • Grebnev Gennadij Sergeevich
  • Savenja Nikolaj Vasil'Evich
  • Savenja Mikhail Nikolaevich
  • Sukleta Sergej Aleksandrovich
RU2465449C1
METHOD OF REPROCESSING OF THE MATERIALS CONTAINING MINERALS, IN WHICH NICKEL IS PRESENT IN PROTOXIDE FORM 2006
  • Kalashnikova Marija Igorevna
  • Volkov Leonid Vasil'Evich
  • Shneerson Jakov Mikhajlovich
  • Keskinova Marina Valentinovna
RU2319754C1
PROCEDURE FOR COMPLEX PROCESSING NICKEL-COBALT RAW MATERIAL 2009
  • Nesterov Jurij Vasil'Evich
  • Kantsel' Aleksej Viktorovich
  • Kantsel' Maksim Alekseevich
  • Kantsel' Anton Alekseevich
  • Petrova Nina Vladimirovna
  • Letjushov Aleksandr Aleksandrovich
  • Likhnikevich Elena Germanovna
  • Losev Jurij Nikolaevich
RU2393251C1
EXTRACTION METHOD OF METALS, MAINLY NICKEL AND COBALT, FROM OXIDISED ORES 2013
  • Baskov Dmitrij Borisovich
  • Bychkov Aleksej Galaktionovich
RU2568223C2
PROCEDURE FOR PROCESSING OXIDISED NICKEL-, COBALT-, IRON-, AND MAGNESIUM-CONTAINING ORE 2009
  • Nesterov Jurij Vasil'Evich
  • Kantsel' Aleksej Viktorovich
  • Kantsel' Anton Alekseevich
  • Kantsel' Vladimir Alekseevich
  • Letjushov Aleksandr Aleksandrovich
  • Likhnikevich Elena Germanovna
RU2393250C1
METHOD FOR PRODUCING HIGH-PURE HYDRATED NICKEL SULFATE 2019
  • Osten Karel John
  • Grassi Rossano Antonio
  • Gutierrez Clausdorff Arturo
  • Harrison Ryan Colin
RU2797855C2

RU 2 395 594 C2

Authors

Smit Jan-T'Erd

Stejl Jokhann-Dju-Tojt

Dates

2010-07-27Published

2005-10-20Filed