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宜昌某高岭土剥片试验
2014-10-08
宜昌某高岭土矿高岭土含量虽达95%左右,但-2μm粒级产率仅占30%,且有10%的叠片状未剥离高 岭土,层间的着色有机杂质直接煅烧难以高效脱色。为获得高品质高岭土熟料,对试样进行了剥片工艺条件研究,并 对剥片前后的高岭土进行了SEM分析和熟料白度研究。结果表明,在磨矿前一次性加入与试样质量比为3%的分散 剂六偏磷酸钠,搅拌磨中刚玉质中球(=12mm)与小球(=08mm)的体积比为08∶15,介质充填率为70%,磨 矿浓度为70%,剥片转速为800r/min,磨矿时间为180min情况下,剥片产品-2μm粒级产率为9662%,普遍为表 面平滑、颗粒均匀的高岭土单片;剥片前...
Series No 459 !ꢀ ꢀ "ꢀ ꢀ #ꢀ ꢀ $ 20%14&(4&599'' ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ Septemberꢀ 2014 METAL MINE Ë̔Í$ÎÏTU 1 , 2 1, 2 1, 2 1, 2 1, 2 1, 2 –  __ ꢀ )Ž ꢀ |‘ ꢀ 5 ꢀ ’ ꢀ “ ꢀ ” ꢀ • ꢀ ( 1. —˜B^dZ‘’fgh^_Z[, N` —˜ 430070; 2 . #M‘’K^fghN`™‡ˆ‰Š‹, N` —˜ 430070) ) ꢀ *ꢀ Bè%Ù/,%Ù/ÁX•% 95% õö, w - 2 μm i&'Âk6 30% , ք 10% EKP‰v()% Ù/, `¢EŠª„•piÐ@LZfg%ꢀ—ª。 ¸{%èi%Ù/šÒ, ‡ùgܵl(P'0ÍÎOP, ò ‡ > , (P“ŒE%Ù/ܵl SEM jk7šÒã6OP。 ‘e‡, 6c,“±~[¹ùgiX—¸ 3% Ej+ òÂöÌ, “”cKTÑiKí(  = 1 2 mm) cí(  = 0 8 mm) E?Η¸ 0 8∶ 1 5, ‚iIj¸ 70% , c r6¸ 70% , (Péþ¸ 800 r/ min, c,ª¢¸ 180 min ›œA, (P'è - 2 μm i&'¸ 96 62% , ÀÁ¸e ÍGä、 hiØÁE%Ù/ªP; (P“Œ%Ù/šÒEã6jꢀ¸ 76 84% 7 82 08% , (P§šÒEã6Æ%l 5  24 jë。 (PŒ%Ù/Ei67šÒEã6Ø%á%·jÒEiXÀÿ。 + ,-ꢀ pÅ8ꢀ ÆÇꢀ oȂꢀ - 2 μm ÉÊèpꢀ V + ꢀ ꢀ ./012ꢀ TD921 . 4ꢀ ꢀ ꢀ 34567ꢀ Aꢀ ꢀ ꢀ 3892ꢀ 10011250( 2014) 0907705 Experiment of the Stripping of Kaolin in Yichang 1 , 2 1, 2 1, 2 1, 2 1, 2 1, 2 Bai Lili ꢀ Zhang Lingyan ꢀ Guan Junfang ꢀ Liu Xin ꢀ Tian Zhao ꢀ Cao Gang ( 1. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China; 2 . Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan 430070, China) Abstractꢀ The kaolin content of a kaolin ore in Yichang is about 95% , but its fraction yield in - 2 μm size just reaches 3 0% and 10% of kaolin has not been striped which contains organic coloring impurities, so it is hard to realize decolorization by direct roasting. In order to obtain high quality kaolin clinker, the conditions of splitting process are studied, and the SEM photos and whiteness of clinker of kaolin clay before and after the splitting are analyzed. It is obtained that stripping product in - 2 μm size reached the yield of 96. 62% under conditions of volume ratio of medium corundum mill ball (  = 1. 2 mm) and little ball (  = 0. 8 mm ) 0. 8∶ 1. 5, grinding concentration 70% , grinding medium fill rates 70% , stripping speed 800 r/ min for 180 minutes and dispersant sodium hexametaphosphate accounting for 3% of the raw materials by adding once before grind ing. The products are even grained monolithic kaolin with smooth surface; the whiteness of kaolin clinker is increased from 76. 8 4% to 82. 08% after splitting, about by 5. 24% . The granularity of kaolin and the whiteness of kaolin clinker after splitting can reach requirements for high quality fillers. Keywordsꢀ Kaolin, Stripping, Dispersant, Fraction yield in - 2 μm size, Whiteness ꢀ ꢀ %·%Ù/'è, QMý&7MÒ&%Ù/‡ã 7‘6¢„‡%EÀÿ, %·jÒd%Ù/‡i6 EÀÿmF% - 2 μm 6 90% 。 Q“, çÑÏܵ% Ù/(PE­À”4„•|c(、 <:å+7%þN ìu, w'èiXØó+œ, ­ÀꢁÔF(Px ‡Ô?‘¤¶©ÂUꢀæ, ŽCŠ‹J+<~i, Ôx, qÜ%Ù/、 ,JF™iÚ¬%Ù/E(P' , ‡&'%èi%Ù/>„ÓÀRn[ 15] 。 ŽQ“ EOP©¡, “”cÕì(P'0F&'%·%Ù /'èE„ꢀ'0, Œ'0ók݄ꢀRS%Ù/E 6 i6、 Æ%—eÍÎ, CÖÝNˆ–%Ù/P`¢E Šªpi, ¸Œ¥LZÆ%%Ù/šÒEã6ç¶Í Î[ 67] 。 Š ^ùú@ŠÓOPj+>nydXgõf[ ( =ã、 ,vr6、 “”céþ‡(PꢀEŠ‹。 1ꢀ Í(wù ²kO„“ 、 0 1 1ꢀ Í(wù ùgüE«#Bè%Ù/,, ¸üdª5Œ。 ! "#$ꢀ 20140509 % &'(ꢀ ãÆÆ( 1988— ) , q, !VOP&。 de%&ꢀ 3¸/( 1963— ) , $, R­‹, ST, UV, !VOP&ï)。 · 77· % & 459 'ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ !ꢀ ꢀ "ꢀ ꢀ #ꢀ ꢀ $ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2014 (& 9 ' ùgK­À©j¸%Ù¶, ÁX% 95% õö, xÏꢀ Á„ËZXE¶õ、 、 “¶、 OP¶、 w÷¶、 3 è,、 7ý,gõ„•iu。 ùg­À<:©jjk ‘ ëe 1。 ´ 1ꢀ ;r*QáH00jŸS Table 1ꢀ Chemical component analysis of the ore % © ꢀ Áꢀ ꢀ Áꢀ j X j X j X SiO 2 Al 38 45 MgO 0 15 P O 2 5 2 O 3 TiO 2 Fe 0 35 Na 0 05 BaO 2 O 3 SO 0 24 Cr 3 44 26 O 1 47 CaO 0 09 NiO / 1ꢀ 0J“)1Wéó‹Ž9éó © K 2 2 O 2 O 3  ê -2 μm ý¹3Aš› 0  16 ZrO 0 04 0 04 ZM Fig. 1ꢀ Influence of types of dispersants and stripping © ꢀ 2 time on the yield of stripping product in -2 μm size Áꢀ 0 02 0 01 0 01 14 66 — òÂöÌ; ■— eWXÌ ◆ ¨ ¬ 1 Ýw, òÂöÌ6dXäSª‡(PE ꢀ ꢀ ¨e 1 Ýw, ùgK­À©j¸ SiO 7 Al O3 , 2 ÁXjꢀ¸ 44 26% 、 38 45% , ZM¸ 14 66% , W 2 Îˊ‹mö–, eWXÌ6dXä%ª‡(PE Îˊ‹mö–。 äøWnËpEꢀԐj+>E j+•®„«[ 810] : Òv66BòÂöÌdXP[ % Ù ¶ + û SiO 7 Al O Á X ¸ 46 54% 7 2 2 3 3 9 50% 、 ZM¸ 13 96% Ø·´@§, Öpi TiO 、 2  [ ž ²³ARŒRþ_l, wñBŠeWXÌdXP CD¥AR。 q¦fgòÂöÌ€ãäSEÔ , Œ¥ùú.dòÂöÌ”¸j+>。 BŠ(P Fe O 、 CaO、 MgO、 K O、 SO uÁXØäS, ÝëŒù 2 3 2 3 gK%Ù/ÁXä%。 } ‰CØjk‘e‡, ùgi6ä‘, - 2 μm ª¢E»“, 'èK - 2 μm i&'Â'(Æ%, wÆ i&ÁX@§ 30% , wº„ 10% E%Ù/v(), ä KP‰。 Ôx, À{%èi%Ù/¦¸Ý‡ꢀÒÜ µ(P, gRSJi6, Nˆ–JKEŠªpi。 ™ þÂBŠª¢E»“'(RS, (Pª¢¸ 180 min ª, ãðá’‡+œE(P‘, Ôx\U( Pª¢¸ 180 min。 1  2ꢀ Í(²kO„“ ùú89ëe 2。 ´ 2  2ꢀ (Öö÷39éóYSAš› 2ꢀ Í(²k ùú\UòÂöÌEf[=ã¸c,“[ Table 2ꢀ Testing equipment 1% , xŒFê 60 min j[ 1% , TÑiKící? Η¸ 0 8∶ 1 5, c,r6¸ 60% , “”céþ¸ 800 r/ min, (Pª¢¸ 180 min, (Pùú‘ë¬ 2。 8 ꢀ ꢀ 9 ;ꢀ O &'= b㓔c ai6jkT ã6T ZJM - 20 GLS - 101B YQ - Z - 48A 7Ē­=•N®¶  ¡­TeOP­ QÄH2TN†?}þ 1 2TÓ5Ö89 ®¶„±}þ ! gRSOc• RK/ XPM - 120 × 3 m?Š}‰CØ ULTRA PLUS -43 -13 6ç]þa:TN X Š£Uaa[T ½ãñãCj@ Axios advanced SX2 -8 -16 ]ÃVÁL}þ «#õ-ÅaÇC@®¶ ꢀ ꢀ ùúë>eWXÌ7òÂöÌظjk“。 / 2ꢀ (Öö÷39éóê -2 μm ý¹3Aš› Fig. 2ꢀ Influence of corundum balls fill ratio on the yield of stripping product in -2 μm size 2 ꢀ Í(ŸS 2  1ꢀ 0J“)1Oéó‹Ž9éóYSAš› ùúdj+>jꢀ¸eWXÌ7òÂöÌ。 ùú\Uj+>Ef[=ã¸c,“[ 1% ( j+> ¨ ¬ 2 Ýw, BŠ‚iIjÂEÆ%, (P'è K - 2 μm i&'²³È™Œ™”‡²_l。 q  ùgEiX—) , xŒFê 60 min j[ 1% , TÑi ¦ fg, ±Uc,‚iIj¸ 70% 。 Kí(  = 1 2 mm) 、 cí(  = 0 8mm) ?Η¸ 0 8∶ 2  3ꢀ ÚÛ#ä9éóYSAš› 1  5, ‚ijI¸ 70% , c,r6¸ 60% , “”cé ùú\UòÂöÌEf[=ã¸c,“[ þ¸ 800 r/ min, (Pùú‘ë¬ 1。 1 % , xŒFê 60 min j[ 1% , TÑiKící? · 78· ꢀ ꢀ ꢀ Vyyy: Ë´spÅ8ÆÇˊꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2014 (& 9 ' Η¸ 0 8 ∶ 1 5, ‚iIj¸ 70% , c,r6¸ 60% , (Pª¢¸ 180 min, (Pùú‘ë¬ 3。 / 5ꢀ ë„Âi9éóê -2 μm ý¹3Aš› Fig. 5ꢀ Influence of dosing method on the yield of stripping product in -2 μm size / 3ꢀ ÚÛ#ä9éóê -2 μm ý¹3Aš› Fig. 3ꢀ Influence of rotating speed on the yield of stripping product in -2 μm size ◆ — ±[¹ 3% ■ — Fê 60 min [¹ 1% ¨ ¬ 5 Ýw, ±~f[ 3% EòÂöÌ—j 4 f[Ýgüm%E(P'è‘6。 òÂöÌ ¨ ¬ 3 Ýw, BŠ“”céþEÆ%, (P'è f[óïªñžÒvEéC`‘¤, ›©:XE; W?, P[,vE66; ±~[¹ 3% EòÂö Ì, vÒKòÂöÌEr6“ª¢.D6ä%‚ G, vÒ66V“ª¢.D6äS‚G, „è†( P[ 11] 。 Ôx, ±Uj+>òÂöÌEf[=㸠±~f[。 K - 2 μm i&'²³È™Œ™”_l。 q¦f g, ±U“”céþ¸ 800 r/ min。 2  4ꢀ #µ,9éóYSAš› ùú\UòÂöÌEf[=ã¸c,“[ 1 % , xŒFê 60 min j[ 1% , TÑiKící? Η¸ 0 8∶ 1 5, ‚iIj¸ 70% , “”céþ¸ 2  6ꢀ åæ爲Òð9éóYSAš› 8 4 00 r/ min, (Pª¢¸ 180 min, (Pùú‘ë¬ ùú\UòÂöÌEf[=ã¸c,“± 。 ~ f[, TÑiKící?Η¸ 0 8∶ 1 5, ‚i Ij¸ 70% , ,vr6 70% , “”céþ¸ 800 r/ min, (Pª¢¸ 180 min, (Pùú‘ë¬ 6。 / 4ꢀ #µ,9éóê -2μm ý¹3Aš› Fig. 4ꢀ Influence of grinding concentration on the yield of stripping product in -2 μm size ¨ ¬ 4 Ýw, BŠc,r6EÆ%, (P'èK 6ꢀ åæ爲Òð9éóê μ ý¹3Aš› -2 m / - 2 μm i&'²³È™Œ:”6AR。 WFÔ Òvr6Sª, ÒvK%Ù/hi6S, ‚i E„ꢀc(YZ"Âc, Ôxc(ꢀÂäS; Òv Fig. 6ꢀ Influence of dosage of sodium hexametaphosphate on the yield of stripping product in -2 μm size ¸ ¨ ¬ 6 Ýw, BŠj+>òÂöÌdXEP ¢ [ , (P'èK - 2 μm i&'‡²È™Œ„­ r6x%ª, Òv·w~ž, \?hi¢›©lb? AR。 WF¨†x%EòÂöÌñÃ,6 - 2 μm _ ‰‘¤, ¶©Òv·wëÆ, ŽCï'(PꢀÂX ó%[ 11] 。 Ôx, ±Uc,r6¸ 70% 。 % Ù/hieÍ, §hi¢›©ej, ï'ÒvE· ŽCŠ‹c(ꢀÂ[ 11] 。 Ôx, ±UòÂö w~AR, 2  5ꢀ ë„Âi9éóYSAš›  ÌdX¸ 3% , ‡£E(P'èK - 2 μm i&' ùú\UTÑiKící?Η¸ 0 8∶ 1 5, iIj¸ 70% , c,r6¸ 70% , “”céþ¸ ¸ 96 62% 。 ‚ 8 00 r/ min, (Pª¢¸ 180 min, òÂöÌc,“ ±~f[ 3% 7c,“[ 1% , xŒFê 60 min j 1% , (Pùú‘ë¬ 5。 3ꢀ éóŸì;Aþÿ0j 3  1ꢀ éóg}Ÿì;Gí0j ¬ 7、 ¬ 8 jꢀ¸ùg(P“ŒE}‰CؘP。 [ · 79· % & ' ! " # $ (& ' EŠª„•piNˆ–D ¸LZ—ªç¶ÍÎ ùú±UE(PÍθ c,“±~[¹ ùgiX—¸ Ej+>òÂöÌ TÑiK E?Η¸ c,r6¸ (P (P'è  í  cí  iIj¸ ‚ éþ¸ (Pª¢¸ / 7ꢀ ;éógAîï–Ŧó ³ð 10 000 ñ äμ hii&Ø'Á¸ (P'èäªP‰ eÍG Fig. 7ꢀ The SEM photos of kaolin before stripping ×10 000 ( P“Œ%Ù/šÒEã6jꢀ¸ 7 (PŒšÒEã6ä(P“Æ%l  jë WFÔ¸%Ù/Ñ`EŠª„•piÐ@ LZóè—^ (PÝ@Šª„•piNˆ–D § W‚piE—Û7—øLm[‘ ÔCã6g‡² Æ% ( PŒ%Ù/Ei67šÒEã6Ø%á / 8ꢀ ;éó}Aîï–Ŧó ³ð 10 000 ñ % ·jÒEiXÀÿ ”i%Ù/šÒ Fig. 8ꢀ The SEM photos of kaolin after stripping ×10 000 ¨ ¬ ¬ Ýw (P“E%Ù/äKP‰ ó £ ¤ 3 4 keÍóG¨ ÏPGÍõö776Øä: (PŒ E%Ù/¸ªP‰ wÔ?‘¤òviᇲž eÍG¨ ÏPGÍõö776Øäc hii6À Ü \ Ú¬%Ù/E]`õ(POP 7Ä 7Ä:: Ác† μ 3  2ꢀ éóg}Ÿì;ò©ê´0j üùg7±UÍÎAE(P'èÿ ­ ^ _à` Ø 5 (P%Ù/E†?£d ·y 6n{ , Aˆ¹½ãCj@Kܵ¾ð<)BLZ {þ6¸ LZ{6¸ ²{ª Z©Œ6¡)KEA|ß ¤ŒÛUÿLZ èEã6 ‘ëe ™ ¢ ' YTý Ÿ/5 ¯¡¡ u i¬¦a%Ù/E(POP y,- ¸ ´ 3ꢀ ;OéóŸì;ò©êA´ Table 3ꢀ The whiteness of samples and stripping product after calcining Ü]* ûaG 5:s “”cEOPø‰õ?@_• lÚNO ` ' è ùgLZ'è (P%Ù/LZ'è ã 6 ¨ e Ýw (P“ŒLZ'èEã6jꢀ¸ e‡(PÝg‡²Æ%%Ù/ ÒEã6 WFÔ¸%Ù/Ñ`EŠª„•pi 7 3>, 5ïb c#W u %Ù/]` (POPÜ@ Kç·y,'½ïJ š Ð@LZóè—^ (PÝ@Šª„•piNˆ– D W‚piE—Û7—øLm[‘ ÔCã6Ýg ²Æ% ‡ Øꢁò 5ïb &çuQ‘%Ù/EOPø‰ ,'½ïJ Kç·y 4 ꢀ Ÿꢀ ¢ Bè%Ù/gè¸üdª5Œ piÁX äS k6 õö ùgi6ä‘ i&' Â@§ wº„ E%Ù/v() äKP À{i6‘ ã6%E%èi%Ù/šÒ ¸ ݇ùgܵ(P äS'èi6 Ö@%Ù/Ñ` μ Sa, ç5?NO é˜(P•õJ6%Ù/(PKE£d K ‰ ꢀ ꢀ ꢀ Vyyy: Ë´spÅ8ÆÇˊꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2014 (& 9 ' China Powder Science and Technology, 2003, 9( 2) : 4143. 8] ꢀ 3çp, ¿/., d+ý, u. %Ù/66EŠ‹ÔžõÛù= try, 2007: 7479. [ [ 10] ꢀ 3µ], 34, õꢀ f. óçy;%\ÁX%Ù/v;E®9 [ J] . ݕA'½, 2002, 34( 1) : 101104. ìqÜ*[ J] . ·y,, 2006, 29( 3) : 13. Zhang Guofu, Zhu Yanjuan, Xiong Huifang, et al. Discussion on the influence factors to viscosity of kaolin and improvement of testing method[ J] . Nonmetallic Mines, 2006, 29( 3) : 13. Zhang Lieqing, Huang Daopei, Peng Pu. Preparation of different ka olin slurry with high solid content[ J] . Inorganic Chemicals Indus try, 2002, 34( 1) : 101104. [ 9] ꢀ 5ꢀ m, ß#ù, jÆÓ. j+>‡%Ù/j+H~EŠ‹[ G] [ 11] ꢀ Çꢀ ù, †sŒ, j²¶. ,v·Š‡Ú¬gZ%Ù/u‘5Ö EŠ‹7z®[ J] . Kç·y,'½ïJ, 1999( 6) : 2021. Lin Hai, Yu Lianji, Zhao Yanqin. The influence and control of the flow pattern of pulp on the preparation of ultrafine calcinated coal kaolin[ J] . China Nonmetallic Mining Industry Herald, 1999( 6) : 2021. ∥ : Kç¶S:ñGeS™½ABñ. 2007 ‚:O‚ñûÉõ9 ÐH. ¶=}: Kç¶S:ñGeS™½ABñ, 2007: 7479. Liu Pan, He Beihai, Zhao Lihong. Experimental study on viscosity properties of unexfoliated kaolin[ G] ∥The assembly of Conference papers and reports by Newsprint grades commission of China Techni cal Association of Paper Industry in 2007. Shijiazhuang: Newsprint grades Commission of China Technical Association of Paper Indus ( G‹HIꢀ dGe) · 81·
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