超细重质碳酸钙研磨分散剂的选用-刘慧枫

SelectionofGrindingDispersantforUltra-fineGCCLIUHui-feng1PENGQing-hua21.HeilongjiangProvincePulpandPaperInstituteMudanjiang157013China2.NingboAsiaPulpandPaperCo.Ltd.Ningbo315803ChinaAbstractTheuntra-finegrindingofcalciumcarbonatedependsparticularlyondispersant.Thediscrepancyofthedispersantsusedforforepartgrindingandposteriorgrindingareintroduced.UnderthelaboratoryconditionshowtoselectthedispersantbycomparingthepropertiesofGCCslurryarediscussed.Observingthephenomenaduringthegringprocesscanhelptoselecttheappropriatedisperant.KeywordsGCCdispersantgrindingevaluating2009-09-07121.1570132.315803GCC。,GCCGCC。TS727.3A1007-2225200906-0024-04216200912Vol.21No.6Dec.2009PAPERCHEMICALS。10。102μm90%98992μm98%99%[1]。。。、[2]39。。、、、。[2]39。,GCCGCC。11.1TOSHIBAVF-S31LSediGraph5120BrookfieldDV-+。1.0～1.5mm18002。1DA1B1C1D1D2pH/mPa·sw/%6.987043.67.6241246.07.2160044.07.398244.44.6146250.0A25.674043.4AB24.4285652.3BC24.4153644.0C1A、B、CD12。11.2800、70%GCC1000∶24001500r/min。20%20min30%30min50%。0.9%GCC。75min2μm9590min2μm98。22.1。。。、。、[3]。。。。、3。pHGCC。GCC。GCC80℃。2.2GCCGCC。GCCGCC、、GCC。w/%CaCO3MgO98.320.130.122pH3、625··212.2.1GCC。、GCCGCC。GCC。GCC。2.2.2。GCC。2.2.3GCC2。。T01T2415minT24’T24’1T24’+1。GCC。2.395GCC95GCC4。4B、CGCC2μmA、D。B、CGCCA、D。BCAD。95GCC1。1B、CGCCA、DB、CA、D。。2.498GCC98GCC5。5B、CGCC2μmA、D。B、CGCCA、D。BCAD。95GCC。98GCC2。2B、CGCCA、D。B、CA、D。95GCC。95GCC、98GCC。98GCCGCCABCD75.097.978.89.474.197.176.39.274.397.076.99.375.097.779.39.5w/%pH≤2μm/%≤1μm/%52μm98GCCABCD75.496.074.99.574.695.172.89.174.895.273.19.275.895.976.49.4w/%pH≤2μm/%≤1μm/%42μm95GCC





1400120010008006004002000ABCDT0T24T24’T24’+1/mPa·s195GCC26··6。GCC。2.5GCCGCCGCCGCC。34。4≤0.2μmGCC。、。。3GCC9598。GCC。1GCC、、。2GCC、。3GCC、。4。。1.J.200618434-35.2.J.20021.3.J.2006219-21.1971-、、[e-mail]。．[J]．200921624-27．





2000150010005000T0T24T24’T24’+1ABCD/mPa·s298GCC/%/%2.22.01.81.61.41.21.00.80.60.40.20.01009080706050403020100/μm10.01.042.22.01.81.61.41.21.00.80.60.40.20.01009080706050403020100/%/%/μm310.01.027··