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clwlyhx

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¡ï
huyuchem(½ð±Ò+1):лл
1 ¡¡¸Æ·¨³ýÁ×
ÔÚ³Áµí·¨³ýÁ×ÖÐ,»¯Ñ§³ÁÎö¼ÁÖ÷ÒªÓÐÂÁÀë×Ó¡¢ÌúÀë×ÓºÍ
¸ÆÀë×Ó,ÆäÖÐʯ»ÒºÍÁ×Ëá¸ùÉú³ÉµÄôÇ»ùÁ×»ÒʯµÄƽºâ³£Êý
×î´ó,³ýÁ×Ч¹û×îºÃ. Ͷ¼Óʯ»ÒÓÚº¬Á×·ÏË®ÖÐ,¸ÆÀë×ÓÓëÁ×
Ëá¸ù·´Ó¦Éú³É³Áµí,·´Ó¦ÈçÏÂ:
5Ca2 + + 7OH- + 3H2 PO4
- = Ca5 (OH) ( PO4 ) 3 ¡ý +
6H2O (1)
¸±·´Ó¦:Ca2 + + CO3
2 - = CaCO3 ¡ý (2)
·´Ó¦(1) µÄƽºâ³£ÊýKS0 = 10 - 55. 9 . ÓÉÉÏÊö·´Ó¦¿ÉÖª³ý
Á×ЧÂÊÈ¡¾öÓÚÒõÀë×ÓµÄÏà¶ÔŨ¶ÈºÍpH Öµ. ÓÉʽ(1) ¿ÉÖªÁ×
ËáÑÎÔÚ¼îÐÔÌõ¼þÏÂÓë¸ÆÀë×Ó·´Ó¦Éú³ÉôÇ»ùÁ×Ëá¸Æ,Ëæ×ÅpH
ÖµÔö¼Ó·´Ó¦Ç÷ÓÚÍêÈ«. µ±pH Öµ´óÓÚ10 ʱ³ýÁ×Ч¹û¸üºÃ,¿É
È·±£´ïµ½³öË®ÖÐÁ×ËáÑεÄÖÊÁ¿Å¨¶È< 0. 5mg/ L µÄ±ê×¼. ·´
Ó¦(2) ¼´¸ÆÀë×ÓÓë·ÏË®ÖеÄ̼Ëá¸ù·´Ó¦Éú³É̼Ëá¸Æ,Ëü¶ÔÓÚ
¸Æ·¨³ýÁ׷dz£ÖØÒª,²»½öÓ°Ïì¸ÆµÄͶÁ¿,ͬʱÉú³ÉµÄ̼Ëá¸Æ
¿É×÷ΪÔöÖØ¼Á,ÓÐÖúÓÚÄý¾Û¶øÊ¹ÎÛË®³ÎÇå.

2 ¡¡»ì¼Á¸¨Öú»¯Ñ§³Áµí·¨
¸Ã·¨²ÉÓõĸ´ºÏ³Áµí¼ÁÊÇÂÈ»¯Ã¾ºÍÁ×ËáÇâï§,ÔÚ³ýÁ×
µÄͬʱÉú²ú»ºÐ§¸´ºÏ·Ê,Æä·´Ó¦Ô­ÀíÈçÏÂ:
HPO4
2 - + Mg2 + + NH4
+ + 6H2O = MgNH4 PO4 ¡¤6H2O
¡ý+ H+
PO4
3 - + Mg2 + + NH4
+ + 6H2O = MgNH4 PO4¡¤6H2O ¡ý
·´Ó¦Éú³ÉµÄMgNH4 PO4¡¤6H2O ½á¾§´ó,Ò×¹ýÂË,¶Ôº¬Á×
Ũ¶È½ÏµÍµÄ·ÏË®,Ò»´Î´¦Àí¼´¿É´ïµ½Åŷűê×¼. µ«µ±ÔÚ´¦Àí
º¬Á׽ϸߵķÏˮʱÄÑÒÔ´ï±ê,ÐèÒªÔÚÒ»´Î´¦ÀíµÄ»ù´¡ÉÏÏò
Ò»´Î´¦ÀíÒº¼ÓÈ븴ºÏ»ìÄý¼ÁPAC(¾ÛºÏÂÈ»¯ÂÁ) ºÍPAM(¾Û
±ûÏ©õ£ï§) . PAC µÄ»ìÄýÖ÷ÒªÊÇͨ¹ýÎü¸½¼ÜÇźͳÁµíÍø²¶×÷
ÓÃʵÏÖ,PAM ÊÇÒõÀë×ÓÐ͸߷Ö×ÓÐõÄý¼Á,¼ÓÈëÈÜÒººóPAM
ÄÜѸËÙ²¢¾ùÔȵطÖÉ¢,ʹˮÈÜÒºÖеijÁµíÀë×Ó¡°ÁªÇÅ¡±ÐγÉ
ÐõÍŶø³ÁµíÏÂÀ´[ 4 ] . ʵÑé½á¹û±íÃ÷:ÒÔPAM ×÷ΪÖúÄý¼Á,Óë
»ìÄý¼ÁPAC Ò»Æð×÷ÓÃ,È¡µÃÁ¼ºÃµÄ»ìÄýЧ¹û. Óø´ºÏ»ìÄý·¨½øÐжþ´Î´¦ÀíºóµÄ³öË®¿É´ï¶þ¼¶Åŷűê×¼.
3 ¡¡Â¯ÔüÎü¸½³ýÁ×
¯ÔüÊǸÖÌúÒ±Á¶¹ý³ÌÖвúÉúµÄ¹ÌÌå·ÏÆúÎï,Ö÷ÒªÓÉ
CaO¡¢FeO¡¢MnO¡¢SiO2 ¡¢Fe2O3 ¡¢P2O5 ¡¢Cr2O5 ¡¢Al2O3 µÈÑõ»¯Îï
×é³É,¾ßÓкܶàÓÅÁ¼ÌØÐÔ,ÆäÖÐËùº¬µÄÿÖֳɷ־ù¿ÉÒÔÀû
ÓÃ.
¸Ã·½·¨µÄʵÑéÑо¿ÊÇÔÚÊý¸ö¾ßÈû×¶ÐÍÆ¿Öи÷¼Ó200mL
Ä£Ä⺬Á×·ÏË®ºÍÒ»¶¨Á¿µÄ¯Ôü,ÖÃÓÚÕñµ´Æ÷ÉÏ,ÔÚÊÒÎÂÏÂÕñ
µ´Ò»¶¨Ê±¼äʹÎü¸½·´Ó¦´ïµ½Æ½ºâºó¹ýÂË,È»ºó¶ÔÇåÒº½øÐÐ
Á×µÄŨ¶È²âÊÔ,ÔÙͨ¹ý±È½ÏÈÜÒºÖÐÁ׵ijõʼŨ¶ÈºÍƽºâŨ
¶ÈÍÆËã³öÆäÔÚÎü¸½¼ÁÉϵÄÎü¸½Á¿ºÍÁ×µÄÈ¥³ýÂÊ.

4 ¡¡´ó¿×¾¶Àë×Ó½»»»·¨
¸Ã·¨µÄÀë×Ó½»»»Ê÷Ö¬²ÉÓÃÇ¿¼îÒõÊ÷Ö¬,ÔÙÉúÓÃÖÊÁ¿·Ö
ÊýΪ8 %µÄʳÑÎÈÜÒº,Ê÷Ö¬µÄ½»»»·´Ó¦ÈçÏÂ(RCl ´ú±íÇ¿¼î
Ê÷Ö¬,½»»»Ç°ÒÑת»¯ÎªÂÈÐÍ) :
3RCl + PO4
3 - ¡úR - PO4 + 3Cl -
2RCl + HPO4
2 - ¡úR - HPO4 + 2Cl -
RCl + H2 PO4
- ¡úR - H2 PO4 + Cl -
ʵÑé±íÃ÷:Àë×Ó½»»»Ê÷Ö¬ÍѳýPO4
3 - µÄ½»»»ÈÝÁ¿±È½Ï
Îȶ¨,Àë×Ó½»»»Ê÷Ö¬ÔÙÉúºó½»»»ÈÝÁ¿Ò²±È½ÏÎȶ¨,ÔÙÉú¼ÁºÄ
Á¿Îª102¡«113g/ mol

[ Last edited by clwlyhx on 2006-9-26 at 17:48 ]
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