Differential flotation of sulfide ores for recovering refractory gold
Provided herein is a process for recovery of gold from gold-containing raw materials comprising refractory gold-containing minerals, in particular gold-containing refractory sulfidic minerals, comprising (a) obtaining gold-containing raw material comprising refractory gold-containing sulfidic minera...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | English |
Published |
12.04.2018
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | Provided herein is a process for recovery of gold from gold-containing raw materials comprising refractory gold-containing minerals, in particular gold-containing refractory sulfidic minerals, comprising (a) obtaining gold-containing raw material comprising refractory gold-containing sulfidic minerals comprising first type of refractory sulfidic mineral having high gold content and second type of sulfidic mineral having low gold content; (b) forming a mineral pulp comprising first type of refractory sulfidic mineral particles having high gold content and second type of sulfidic mineral particles having low gold content by suspending ground gold-containing material in water and optionally further milling the material; (c) conditioning the mineral pulp by addition of a surface modifying chemical for modifying the surface of the first type of refractory sulfidic mineral particles having high content thus making the said particles non-floatable to obtain a conditioned pulp; (d) subjecting the conditioned pulp to a froth flotation process to separate first type of refractory sulfidic mineral particles having high gold content from the second type of sulfidic mineral particles having low gold content; (e) recovering the non-floatable first type of refractory sulfidic mineral particles having high cold content as flotation tailings; (f) pressure oxidizing (POX) the flotation tailings recovered in step (e) to obtain a discharge slurry comprising liberated gold; and (g) recovering gold from the discharge slurry obtained in step (f). |
---|---|
AbstractList | Provided herein is a process for recovery of gold from gold-containing raw materials comprising refractory gold-containing minerals, in particular gold-containing refractory sulfidic minerals, comprising (a) obtaining gold-containing raw material comprising refractory gold-containing sulfidic minerals comprising first type of refractory sulfidic mineral having high gold content and second type of sulfidic mineral having low gold content; (b) forming a mineral pulp comprising first type of refractory sulfidic mineral particles having high gold content and second type of sulfidic mineral particles having low gold content by suspending ground gold-containing material in water and optionally further milling the material; (c) conditioning the mineral pulp by addition of a surface modifying chemical for modifying the surface of the first type of refractory sulfidic mineral particles having high content thus making the said particles non-floatable to obtain a conditioned pulp; (d) subjecting the conditioned pulp to a froth flotation process to separate first type of refractory sulfidic mineral particles having high gold content from the second type of sulfidic mineral particles having low gold content; (e) recovering the non-floatable first type of refractory sulfidic mineral particles having high cold content as flotation tailings; (f) pressure oxidizing (POX) the flotation tailings recovered in step (e) to obtain a discharge slurry comprising liberated gold; and (g) recovering gold from the discharge slurry obtained in step (f). |
Author | Leppinen, Jaakko Moilanen, Jari |
Author_xml | – fullname: Leppinen, Jaakko – fullname: Moilanen, Jari |
BookMark | eNqNyk0KwjAQhuEsdOHfHQZcC9YUqcuiFQ-g6xLSb0ogZMokCt5eFx7A1fss3qWZJUlYmO4SmKFIJbhIHKW4EiSRMOVn5DCARJGJRUnh5QUNafyS1fki-qZR4rA2c3YxY_Prymyv3f1822GSHnlyHgmlbx-HfXW0tmlOdVvZ_64PGck2Sw |
ContentType | Patent |
DBID | EVB |
DatabaseName | esp@cenet |
DatabaseTitleList | |
Database_xml | – sequence: 1 dbid: EVB name: esp@cenet url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP sourceTypes: Open Access Repository |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Medicine Chemistry Sciences |
ExternalDocumentID | AU2016338894A1 |
GroupedDBID | EVB |
ID | FETCH-epo_espacenet_AU2016338894A13 |
IEDL.DBID | EVB |
IngestDate | Fri Jul 19 14:24:08 EDT 2024 |
IsOpenAccess | true |
IsPeerReviewed | false |
IsScholarly | false |
Language | English |
LinkModel | DirectLink |
MergedId | FETCHMERGED-epo_espacenet_AU2016338894A13 |
Notes | Application Number: AU20160338894 |
OpenAccessLink | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180412&DB=EPODOC&CC=AU&NR=2016338894A1 |
ParticipantIDs | epo_espacenet_AU2016338894A1 |
PublicationCentury | 2000 |
PublicationDate | 20180412 |
PublicationDateYYYYMMDD | 2018-04-12 |
PublicationDate_xml | – month: 04 year: 2018 text: 20180412 day: 12 |
PublicationDecade | 2010 |
PublicationYear | 2018 |
RelatedCompanies | Outotec (Finland) Oy |
RelatedCompanies_xml | – name: Outotec (Finland) Oy |
Score | 3.1456633 |
Snippet | Provided herein is a process for recovery of gold from gold-containing raw materials comprising refractory gold-containing minerals, in particular... |
SourceID | epo |
SourceType | Open Access Repository |
SubjectTerms | DIFFERENTIAL SEDIMENTATION FLOTATION MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING |
Title | Differential flotation of sulfide ores for recovering refractory gold |
URI | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180412&DB=EPODOC&locale=&CC=AU&NR=2016338894A1 |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_GFPVNp-LHlIDSt-LWJaN5GLL1gyHsA9lkb6NtEhFKO9ZO8b_3Ejvd095CAkdycLn7JXe_A3h0EqF02G07PKY2jamwXSa5zWOHCSaloiY3ZzTuDuf0ZcEWNUi3tTCGJ_TLkCOiRSVo76W5r1f_j1i-ya0snuIPnMqfw1nPtyp03NZsOo7lD3rBdOJPPMvzEEla41e91kU05nLaR6x0oANpzbQfvA10Xcpq16mEp3A4RXlZeQY1mTXg2Nv2XmvA0aj68sZhZX3FOQR-1c0ErTIlKs1_v9FJrkixSRUeh-SIngnGoUQD3U9DM4hDtTZddb7Je56KC3gIg5k3tHE_y7_jL_vz3c13LqGe5Zm8AhIlLeYm6GQ1RxtvdyLRVYK7GDSgi2mx6Bqa-yTd7F--hROtUNvwGjahXq438g4dcBnfG739ACqziYc |
link.rule.ids | 230,309,786,891,25594,76903 |
linkProvider | European Patent Office |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_GFOebTsXp1IDSt-LWtbV9GLL1g6prN6STvZV-RYTSjrVT_O-9xE73tLeQg3AXuNz9csnvAO6kOKEs7RYlPZJFOZITUVNSXdQjSUmUNKUyf5vjeqozl58XyqIB2eYvDOcJ_eLkiOhRMfp7xc_r5f8llsnfVpb30QdOFY-2PzSFGh33GZuOJJjjoTWbmlNDMAxEkoL3ymQqojFNl0eIlfYeEBRysPQ2Zv9SlttBxT6C_Rmul1fH0EjzNrSMTe-1Nhy4dckbh7X3lSdgmXU3E_TKjNCs-C2jk4KScp1RNIcUiJ4J5qGEAd1PTjOIQ7riXXW-yXuRJadwa1u-4YioT_BnfjCabys_OINmXuTpOZAw7ilajEGWcbTp_UGYqDTRNUwaMMT0lLAD3V0rXewW30DL8d1JMHnyXi7hkG2uyDkOu9CsVuv0CoNxFV3zPfwBviWMcQ |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Differential+flotation+of+sulfide+ores+for+recovering+refractory+gold&rft.inventor=Leppinen%2C+Jaakko&rft.inventor=Moilanen%2C+Jari&rft.date=2018-04-12&rft.externalDBID=A1&rft.externalDocID=AU2016338894A1 |