Effects of Lixiviant (H2SO4 and C6H8O7) and Reductant (H2O2) with an Application of Acid Leaching in Production of High Quality Quartz

Abstract

Purification of quartz with chemical processes is extremely important for many industries including optical quality glass, electronic and advanced technological products. Iron as the most significant impurity present in quartz ores can be substantially removed by aqueous chemical processes using organic and inorganic acids. In this study to investigate the removal of iron as impurity from quartz ores, sulfuric acid and citric acid leaching tests with hydrogen peroxide were conducted. Chemical leaching tests were performed to evaluate the performances of different acids and effects of the parameters including pulp density, temperature, leaching duration and reagent concentration on Fe2O3 removal using full factorial design method. The results were evaluated by ANOVA (analysis of variance) method and empirical regression models were established. Under optimum condition (5% pulp ratio, 3M sulfuric acid concentration, 1M hydrogen peroxide concentration, 90°C temperature and 120 minutes of leaching (reaction) time), a Fe2O3 removal of 98,9% and 1 ppm Fe2O3 content high quality quartz product were obtained when sulphuric acid leaching in the presence of hydrogen peroxide was tested.

Full text

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Effects of Lixiviant (H2SO4 and C6H8O7) and Reductant (H2O2) with an
Application of Acid Leaching in Production of High Quality Quartz
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\HULQL GHPLU LOH NRPSOHNV ROXúWXUDUDN GHPLULQ
o|NHOPHVLQLHQJHOOH\HQ YH JHQLúS+ DUDOÕ÷ÕQGD
OLo LúOHPLQLQ JHUoHNOHúPHVLQL VD÷OD\DQ RUJDQLN
DVLWOHUDOPDNWDGÕU3DQLDVYG$PELNDGH-
YLYH/DOLWKDPELND$NFLOYH7XQFXN
$NFLOYG
%LUoRNDUDúWÕUPDFÕNXYDUVYHVLOLNDNXPXQGDVDI-
VÕ]OÕN RODUDN EXOXQDQ )H223¶LQ X]DNODúWÕUÕOPDVÕ
DPDFÕ\OD |]HOOLNOH VOIULN DVLW 7RUR YG 
9HJOLR YG  %DQ]D YG  7XQFXN YH
$NFLOYHRNVDOLNDVLW%RQQH\8EDO-
GLQLYG7D[LDUFKRXYG9HJOLRYG
9HJOLRYG$UVODQ YH%D\DW
'XYGUHDNWLÀHULLOHIDUNOÕoDOÕúPDNRúXOOD-
UÕQGDOLoLúOHPOHULJHUoHNOHúWLUPLúWLU
&HYKHUGHNL )H223 JLEL VDIVÕ]OÕNODUÕQ X]DNODú-
WÕUÕOPDVÕ LoLQ KHU ]DPDQ DVLW OLoL WHN EDúÕQD \H-
WHUOL JHOPHPHNWHGLU )H+2¶QLQ o|]QUO÷QQ
)H+3¶WHQ GDKD \NVHN ROGX÷X GúQOHUHN DVLW
OLoL LúOHPOHULQGH RNVDOLN DVLW VLWULN DVLW JOLNR]
KLGURMHQ SHURNVLW JLEL IDUNOÕ LQGLUJH\LFL UHDNWLÀHU
NXOODQÕODELOLU2NVDODWVLWUDWJLELRUJDQLNDQ\RQODU
\]H\H WXWXQDUDN )H+3 ± 2 ED÷ÕQÕ ]D\ÕÀDWPDN-
WD YH E|\OHFH LQGLUJH\LFL o|]QPH DUWPDNWDGÕU
6FKZHUWPDQQ
+LGURMHQSHURNVLW+222KHP\NVHOWJH\LFLKHP
GH LQGLUJH\LFL UHDNWLI RODUDN NXOODQÕOPDNWDGÕU
H222 JoO ELU \NVHOWJHQ YH oHYUHVHO DoÕGDQ
JYHQOLELUUHDNWLIWLU+LGURMHQSHURNVLWDVLGLNo|-

11
]HOWLOHUGH%D÷ÕQWÕ¶HJ|UHLQGLUJHQLU
H222 + 2H+Ɲĺ+22(0 9 
+LGURMHQ SHURNVLW D\QÕ ]DPDQGD %D÷ÕQWÕ ¶GHNL
\NVHOWJHQPHWHSNLPHVLQHJ|UHLQGLUJH\LFLUHDN-
WLIRODUDNGDYUDQPDNWDGÕU
H222ĺ22 + 2H+Ɲ 
7RSODPWHSNLPHLVH%D÷ÕQWÕ¶WHYHULOPHNWHGLU
2H222ĺ22 + 2H22 
+LGURMHQSHURNVLWLQER]XQPDVÕLOHo|]HOWLGHJHU-
oHNOHúHQ HOHNWURQ WUDQVIHUL YDVÕWDVÕ\OD RNVLMHQ
PLQHUDO \]H\LQGHQ DGVRUSODQPDNWDGÕU  9
SRWDQVL\HOGH÷HULPHWDOVO¿WOHUL RNVLWOH\HELOPH-
VL LoLQ \HWHUOLGLU $\GR÷DQ  $\GR÷DQ YG
 $\QÕ ]DPDQGD KLGURMHQ SHURNVLW DVLGLN
o|]HOWLOHUGHNL ELUoRN PHWDO RNVLW ELOHúL÷LQH NDU-
úÕ GD LQGLUJH\LFL UHDNWLI RODUDN GDYUDQPDNWDGÕU
(O+D]HNYG/LYG%D÷ÕQWÕYH
¶WHNL\NVHOWJHQPHYHLQGLUJHQPHWHSNLPHOHULQH
J|UHQHWWHSNLPH\DQL)H223¶LQLQGLUJH\LFLUHDN-
WLIRODUDN+222¶LQNXOODQÕOGÕ÷ÕDVLGLNo|]HOWLOHUGHNL
NLP\DVDOo|]QPHVL%D÷ÕQWÕ¶WHYHULOPHNWHGLU
)H223++Ɲĺ)H+2 + 3H22 
)H223 + H222 + 4H+ĺ)H+2 + 3H2222 
%X oDOÕúPD NDSVDPÕQGD VDÀDúWÕUÕOPÕú NXYDUV
UQHOGHVLLoLQNXYDUVÕQLQGLUJH\LFLUHDNWLIKLG-
URMHQSHURNVLWYDUOÕ÷ÕQGDLQRUJDQLNVOIULNDVLW
YH RUJDQLN VLWULN DVLW DVLWOHU LOH ELU OLo \|QWHPL
JHOLúWLULOPHVL DPDoODQPÕúWÕU )DUNOÕ IDNW|UOHULQ
NDWÕVÕYÕ RUDQÕ UHDNWLI GHULúLPL VÕFDNOÕN OLo V-
UHVLOLoSHUIRUPDQVÕ]HULQHHWNLOHULEHOLUOHQHUHN
HWNLOHU$129$9DU\DQV$QDOL]L\|QWHPL LOH GH-
÷HUOHQGLULOPLúWLU
2. 'ENEYSEL ÇAL,ù0ALAR
2.1. KXYDUV NXPXQHVL
.XYDUVQXPXQHVL.DOWXQ0DGHQFLOLN6DQYH7LF
$ù dLQH $\GÕQ¶GHQ %DUPDF NÕUÕFÕ oÕNÕúÕ 
FP RODUDN WHPLQ HGLOPLúWLU .XYDUV FHYKHUL |Q-
FHOLNOHoHQHOLNÕUÕFÕ)ULWVFKPDUNDLOHNDGHPHOL
RODUDN PP ER\XWXQD NÕUÕOPÕúDUGÕQGDQPHU-
GDQHOL NÕUÕFÕ ODERUDWXDU WLS hQDO 0KHQGLVOLN
NXOODQÕODUDNQXPXQHQLQWDPDPÕPPER\XWXQD
NÕUÕOPÕúWÕU'DKDVRQUDNXYDUVQXPXQHVLP
ER\XWXQGD DOPLQD ELO\HOL GH÷LUPHQGH |÷WO-
PúYHOLoWHVWOHULQHX\JXQKDOHJHWLULOPLúWLU
.XYDUV FHYKHULQLQ PLQHUDORMLN \DSÕVÕQÕ EHOLU-
OHPHN DPDFÕ\OD RSWLNFHYKHU PLNURVNREX LOH
PDNURVNRELN YH PLNURVNRELN LQFHOHPHOHU \DSÕO-
PÕúWÕU$\UÕFD07$YH ùLúHFDP$U*HODERUDWX-
DUODUÕQGDQDOÕQDQPLQHUDORMLNDQDOL] UDSRUODUÕ LOH
NDUúÕODúWÕUÕODUDNNXYDUVEQ\HVLQGHEXOXQDQVDI-
VÕ]OÕNODUÕLoHUHQPLQHUDOOHUEHOLUOHQPLúWLU
<DSÕODQPDNURVNRELN YH PLNURVNRELN LQFHOHPH-
OHUGH÷HUOHQGLULOGL÷LQGHNXYDUV|UQH÷LQGH)H223
WDúÕ\ÕFÕ PLQHUDOOHU RODUDN KHPDWLW NXYDUVODUÕQ
]HULQGH VÕYDPDODU YH NXYDUV oDWODNODUÕQÕQ
DUDVÕQÕGROGXUPXúúHNLOGHYHPLNDQÕQoR÷XQ-
OXNODPXVNRYLWEL\RWLWYHD]PLNWDUGDIORJRSLW
PLQHUDOL RODUDN EXOXQGX÷X EHOLUOHQPLúWLU ùHNLO
dLIWQLNROLQFHNHVLW|UQH÷LJ|UQWVQGHoLIW
RSWLNHNVHQOLPLQHUDORODQPLNDJ|]OHQLUNHQWHN
QLNROLQFHNHVLW|UQH÷LJ|UQWVQGHLVHRSDNPL-
QHUDORODQKHPDWLWYHWHNRSWLNHNVHQOLPLQHUDOOHU
VLOLVPLQHUDOOHULJ|]OHQPLúWLU
.XYDUV FHYKHULQLQ NLP\DVDO NDUDNWHUL]DV\R-
QXQGD ;ÕúÕQÕ ÀRUHVDQV ;5) 6SHFWUR ;H-
SRV \|QWHPL NXOODQÕOPÕú YH DQDOL]OHU .DOWXQ
0DGHQFLOLN 6DQ YH 7LF $ù¶\H DLW DNUHGLWH RO-
PXú ,62  VHUWL¿NDOÕ $U*H YH .DOL-
WH .RQWURO /DERUDWXDUODUÕQGD \DSÕOPÕúWÕU ;5)
DQDOL]OHULQGH )H223 LoHUL÷L  KDVVDVL\HWOH
RNXQPDNWDGÕU 1XPXQHOHULQ LoHUL÷LQGHNL WP
PHWDORNVLWOHULQGD÷ÕOÕPÕ WDPNLP\DVDODQDOL]LOH
HOGHHGLOPLúYHVRQXoODUÕdL]HOJH¶GHYHULOPLúWLU
;5)DQDOL]LQGHQHOGHHGLOHQVRQXoODUDdL]HOJH
J|UHNXYDUVFHYKHULQLQ)H223LoHUL÷LSSP
7L22LoHUL÷LLVHSSPRODUDNEHOLUOHQPLúWLU.X-
YDUVFHYKHULQLQ EH\D]OÕN ³/´ GH÷HULEH\D]OÕNLQ-
GHNVLWHVWLLOHRODUDNEHOLUOHQPLúWLU
dL]HOJH  .XYDUV &HYKHULQLQ .LP\DVDO $QDOL]
6RQXoODUÕ;5)
%LOHúLP 
6L22
$O223
)H223
7L22
&D2 
0J2 
1D22
K22
..a
7RSODP 
a.Õ]GÕUPDND\EÕ

12
2.2. Y|QWHP
$OPLQD ELO\HOL |÷WPH LúOHPL VRQUDVÕ NXYDUV
QXPXQHVL
PHOHNVHULOHULNXOODQÕODUDNVÕQÕÀDQGÕUÕODUDN
NXYDUV QXPXQHOHULQLQ NLP\DVDO DQDOL]OHULQGHNL
)H223 LoHULNOHUL LQFHOHQGL÷LQGH  P¶GHQ LWL-
EDUHQ\NVHN)H223 LoHUL÷LJ|UOPúWU%XGX-
UXPGD |÷WOPú NXYDUV QXPXQHVLQGH WDQH
ER\XWXQD J|UH ]HQJLQOHúWLUPH \DSÕODUDN 
P¶GHQ LWLEDUHQ DOW IUDNVL\RQODU D\UÕOPÕúWÕU YH
NLP\DVDOOLoWHVWOHULQGHPER\XWDUD-
OÕ÷ÕQGDNL QXPXQHQLQ NXOODQÕOPDVÕ DPDFÕ\OD |Q
]HQJLQOHúWLUPHLúOHPL\DSÕOPÕúWÕU
%|\OHFHNXYDUVQXPXQHVLQGHNL)H223LoHUL÷L
SSPYH7L22LoHUL÷LSSPLNHQWDQHER\XWXQD
J|UH|Q]HQJLQOHúWLUPHLúOHPLLOH)H223LoHUL÷L
SSP¶H7L22LoHUL÷LGH SSP¶HGúUOPúWU
(OGHHGLOHQPYHPNXYDUVQX-
PXQHOHULQLQ NLP\DVDO DQDOL]L dL]HOJH ¶GH YHULO-
PLúWLU /Lo LúOHPOHULQH NDWÕOPD\DQ  P IUDN-
VL\RQXLoLQ DQDOL]GH÷HUOHULJ|]|QQGHEXOXQGX-
UXOGX÷XQGDNLP\DVDOLoHUL÷LQHX\JXQVHNW|UOHUGH
NXOODQÕPÕPPNQGU
dL]HOJH7DQH%R\XWXQD*|UH=HQJLQOHúWLUPHøúOHPL
6RQUDVÕ.XYDUV1XPXQHVLQLQ.LP\DVDO$QDOL]L
%LOHúLP P

P

6L22 
$O223 
)H223 
7L22 
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14
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E      %     
DE      $%     
F      &     
DF      $&     
EF      %&     
DEF      $%&     
G      '     
DG      $'     
EG      %'     
DEG      $%'     
FG      &'     
DFG      $&'     
EFG      %&'     
DEFG      $%&'     
aGHQH\VHO)H223X]DNODúWÕUPDYHULPL
EKHVDSODQDQ)H223X]DNODúWÕUPDYHULPL

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dL]HOJH<DWHV'HQH\VHO']HQ0HWRGXQD*|UH<DSÕODQ+222 9DUOÕ÷ÕQGD&H827/LoL6RQXQGD(OGH(GLOHQ)H2238]DNODúWÕUPD9HULPOHULQLQ$129$$QDOL]L
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(WNL
4-1 2
)KHVDS
62
gQHP

+'89E

-     -
a     $     
E      %     
DE      $%     
F      &     
DF      $&     
EF      %&     
DEF      $%&     
G      '     
DG      $'     
EG      %'     
DEG      $%'     
FG      &'     
DFG      $&'     
EFG      %&'     
DEFG      $%&'     
aGHQH\VHO)H223X]DNODúWÕUPDYHULPL
EKHVDSODQDQ)H223X]DNODúWÕUPDYHULPL

17
H222 LODYHVL\OH +2624 OLoL GHQH\OHUL VRQXFXQGD
)H223 X]DNODúWÕUPD YHULPL '89¶QL HWNLOH\HQ
DQDIDNW|UYHJLULúLPHWNLOHULdL]HOJH¶WHYHULOHQ
HWNLGH÷HUOHULGLNNDWHDOÕQDUDNùHNLO¶GHJ|VWH-
ULOPLúWLU
ùHNLO+222LODYHVL\OH+2624OLoLGHQH\OHULQGHQHOGH
HGLOHQ)H223X]DNODúWÕUPDYHULPOHULQH HWNL HGHQ DQD
IDNW|UOHUYHJLULúLPOHU
.6 RUDQÕ $ +2624 GHULúLPL % YH VÕFDNOÕN
' DQD IDNW|UOHULQLQ '89 ]HULQGH SR]LWLI \|Q-
GHHWNLOL ROGX÷X J|]OHQPLúDQFDN+222 GHULúLPL
& DQD IDNW|U HWNLVLQLQ ROPDGÕ÷Õ VDSWDQPÕúWÕU
H222 GHULúLPL LOH VÕFDNOÕ÷ÕQ ELUOLNWH &' JLULúLP
HWNLVLQLQ SR]LWLI \|QGH HWNLOL ROGX÷X J|UOPú-
WU EX GXUXPGD \NVHN VÕFDNOÕN GH÷HUOHULQGH
H222¶LQ LQGLUJH\LFL HWNLVL\OH )H223 o|]QPHVL
JHUoHNOHúPHNWHGLU
H222LODYHVL\OH+2624OLoLLOH'89LoLQ0LQLWDE
øVWDWLNVHO<D]ÕOÕPÕNXOODQÕODUDNHOGHHGLOHQGHQN-
OHP DúD÷ÕGD YHULOPLúWLU %D÷ÕQWÕ  'HQH\VHO
'89 LOH UHJUHV\RQ PRGHOOHULQGHQ KHVDSODQDQ
'89 DUDVÕQGDNL LOLúNL GD÷ÕOÕPÕ ùHNLO ¶WH J|VWH-
ULOPLúWLU
ùHNLO+222LODYHVL\OH+2624OLoLQGHGHQH\VHO)H223
X]DNODúWÕUPDYHULPLLOHKHVDSODQDQ)H223X]DNODúWÕUPD
YHULPLQLQGD÷ÕOÕPÕ
<)H2 ;;;
 ;;  ;;  ;; 
;;
52 
ùHNLO ¶WH GHQH\VHO YH KHVDSODQDQ '89 DUDVÕQGDNL
GD÷ÕOÕPÕQNÕVPHQX\XPOXROGX÷XJ|UOPHNWHGLU
øNLQFL DúDPDGD +2624 \HULQH RUJDQLN ELU DVLW
RODQ VLWULN DVLW NXOODQÕODUDN \NVHN YHULP HOGH
HGLOPH\H oDOÕúÕOPÕúWÕU DQFDN HOGH HGLOHQ YHULOHU
H222LODYHVL\OH+2624OLoL YHULOHUL\OH dL]HOJH 
NÕ\DVODQGÕ÷ÕQGD'89¶QLQGDKDGúNROGX÷XJ|-
UOPHNWHGLU 'HQH\VHO VRQXoODU $129$ \|QWH-
PL\OHGH÷HUOHQGLULOLS dL]HOJH¶GDNLHWNLQGH÷HU-
OHUGLNNDWH DOÕQDUDNDQDIDNW|UYHJLULúLPHWNLOHUL
ùHNLO¶WHJ|VWHULOPLúWLU
ùHNLO  +222 LODYHVL\OH VLWULN DVLW OLoL GHQH\OHULQGHQ
HOGHHGLOHQ )H223X]DNODúWÕUPDYHULPOHULQHHWNL HGHQ
DQDIDNW|UOHUYHJLULúLPOHU
H222LODYHVL\OHVLWULNDVLWOLoLGHQH\OHULQGHVÕFDN-
OÕN'DQDIDNW|UQQ'89]HULQGHHWNLQROGX-
÷X J|UOPHNWHGLU <NVHN VÕFDNOÕN GH÷HUOHULQGH
\NVHNOLoYHULPOHULHOGHHGLOPHNWHGLU'L÷HUDQD
IDNW|UOHULQOLoYHULPL ]HULQGHHWNLOLROPDGÕ÷ÕEH-
OLUOHQPLúWLU7PIDNW|UOHULQELUELUOHULLOHJLULúLPHW-
NLVLQLQ$%&'\NVHNYHHWNLQROPDVÕQÕQQHGH-
QLRODUDNVÕFDNOÕNDQDIDNW|UQQ GL÷HU IDNW|UOHU
]HULQGHEDVNÕQROPDVÕV|\OHQHELOLU
H222LODYHVL\OHVLWULNDVLWOLoLLOH'89LoLQ0LQLWDE
øVWDWLNVHO <D]ÕOÕPÕ NXOODQÕODUDN HOGH HGLOHQ GHQN-
OHPDúD÷ÕGDYHULOPLúWLU%D÷ÕQWÕ'HQH\VHO'89
LOHUHJUHV\RQPRGHOOHULQGHQKHVDSODQDQ'89DUD-
VÕQGDNLLOLúNLGD÷ÕOÕPÕùHNLO¶WHJ|VWHULOPLúWLU
ùHNLO  +222 LODYHVL\OH VLWULN DVLW OLoLQGH GHQH\VHO
)H223 X]DNODúWÕUPD YHULPL LOH KHVDSODQDQ )H223
X]DNODúWÕUPDYHULPLQLQGD÷ÕOÕPÕ

18
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