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¡¶Secondary reaction mechanism of leaching process of calcium aluminate slag¡·£»        Hui-lan SUN, Bo WANG, Jian-xin ZHANG, Shu-feng ZONG, Jia-jia LIU
Transactions of Nonferrous Metals Society of China
ÖйúÓÐÉ«½ðÊôѧ±¨(Ó¢Îİæ)
Vol. 25    No. 4    April 2015
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3Â¥: Originally posted by Ðľ²_ÒÀÈ» at 2015-07-05 22:23:16
Secondary reaction mechanism of leaching process of calcium aluminate slag
×÷Õß:Sun, HL (Sun, Hui-lan) ; Wang, B (Wang, Bo) ; Zhang, JX (Zhang, Jian-xin) ; Zong, SF (Zong, Shu-feng) ; Liu, JJ (Liu,  ...

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bensic: ½ð±Ò+10, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-07-05 22:27:32
bensic: ½ð±Ò+40, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-07-07 13:37:31
sunshan4379: LS-EPI+1, ¸ÐлӦÖú£¡ 2015-07-07 14:24:52
Secondary reaction mechanism of leaching process of calcium aluminate slag
×÷Õß:Sun, HL (Sun, Hui-lan)[ 1,2 ] ; Wang, B (Wang, Bo)[ 1,2 ] ; Zhang, JX (Zhang, Jian-xin)[ 1 ] ; Zong, SF (Zong, Shu-feng)[ 1 ] ; Liu, JJ (Liu, Jia-jia)[ 1 ]
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
¾í: 25  ÆÚ: 4  Ò³: 1334-1340
DOI: 10.1016/S1003-6326(15)63732-3
³ö°æÄê: APR 2015
²é¿´ÆÚ¿¯ÐÅÏ¢
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SiO2 in calcium aluminate slag exists in the form of gamma-2CaO center dot SiO2 which is more stable than beta-2CaO center dot SiO2. However, it is decomposed by sodium carbonate solution during leaching process, leading to the secondary reaction. The extent of secondary reaction and reaction mechanism of calcium aluminate slag were studied using XRD. The results show that the decomposition rate of gamma-2CaO center dot SiO2 increases with the increase in leaching time and sodium carbonate concentration. The main products of secondary reaction are the mixture of hydrogarnet and sodium hydrate alumina silicate. SiO2 concentration rises firstly and then drops with the increase of leaching temperature. XRD results indicate that the stable product of secondary reaction at low temperature is hydrogarnet. But hydrogarnet is transformed into sodium hydrate alumina silicate at high temperature. Key words: calcium aluminate slag; secondary reaction; alumina; leaching
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×÷Õ߹ؼü´Ê:calcium aluminate slag; secondary reaction; alumina; leaching
KeyWords Plus:BEHAVIOR
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ͨѶ×÷ÕßµØÖ·: Wang, B (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Peoples R China.
µØÖ·:
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Peoples R China
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 2 ] Hebei Univ Sci & Technol, Hebei Key Lab Mat Near Net Forming Technol, Shijiazhuang 050018, Peoples R China
µç×ÓÓʼþµØÖ·:wangbo1996@gmail.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
National Natural Science Foundation of China        
51104053
Natural Science Foundation of Hebei Province, China        
E2012208047
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
³ö°æÉÌ
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Metallurgy & Metallurgical Engineering
Web of Science Àà±ð:Metallurgy & Metallurgical Engineering
ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000354034600039
ISSN: 1003-6326
eISSN: 2210-3384
ÆÚ¿¯ÐÅÏ¢
Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: CH4WS
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 20
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0
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2Â¥2015-07-05 22:22:43
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sunshan4379: ½ð±Ò+3, ¸ÐлӦÖú£¡ 2015-07-07 14:25:24
Secondary reaction mechanism of leaching process of calcium aluminate slag
×÷Õß:Sun, HL (Sun, Hui-lan)[ 1,2 ] ; Wang, B (Wang, Bo)[ 1,2 ] ; Zhang, JX (Zhang, Jian-xin)[ 1 ] ; Zong, SF (Zong, Shu-feng)[ 1 ] ; Liu, JJ (Liu, Jia-jia)[ 1 ]
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
¾í: 25  ÆÚ: 4  Ò³: 1334-1340
DOI: 10.1016/S1003-6326(15)63732-3
³ö°æÄê: APR 2015
²é¿´ÆÚ¿¯ÐÅÏ¢
ÕªÒª
SiO2 in calcium aluminate slag exists in the form of gamma-2CaO center dot SiO2 which is more stable than beta-2CaO center dot SiO2. However, it is decomposed by sodium carbonate solution during leaching process, leading to the secondary reaction. The extent of secondary reaction and reaction mechanism of calcium aluminate slag were studied using XRD. The results show that the decomposition rate of gamma-2CaO center dot SiO2 increases with the increase in leaching time and sodium carbonate concentration. The main products of secondary reaction are the mixture of hydrogarnet and sodium hydrate alumina silicate. SiO2 concentration rises firstly and then drops with the increase of leaching temperature. XRD results indicate that the stable product of secondary reaction at low temperature is hydrogarnet. But hydrogarnet is transformed into sodium hydrate alumina silicate at high temperature. Key words: calcium aluminate slag; secondary reaction; alumina; leaching
¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:calcium aluminate slag; secondary reaction; alumina; leaching
KeyWords Plus:BEHAVIOR
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Wang, B (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Peoples R China.
µØÖ·:
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Peoples R China
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 2 ] Hebei Univ Sci & Technol, Hebei Key Lab Mat Near Net Forming Technol, Shijiazhuang 050018, Peoples R China
µç×ÓÓʼþµØÖ·:wangbo1996@gmail.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
National Natural Science Foundation of China        
51104053
Natural Science Foundation of Hebei Province, China        
E2012208047
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
³ö°æÉÌ
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Metallurgy & Metallurgical Engineering
Web of Science Àà±ð:Metallurgy & Metallurgical Engineering
ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000354034600039
ISSN: 1003-6326
eISSN: 2210-3384
ÆÚ¿¯ÐÅÏ¢
Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
ÆäËûÐÅÏ¢
IDS ºÅ: CH4WS
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 20
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0

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3Â¥2015-07-05 22:23:16
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