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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,微量元素添加剂的品质与微量元素预混料变色,六和集团技术部,郭吉原,(Guo Jiyuan),2011-04-18,The Quality and Discoloration,of Trace Mineral Additive Premix,2,一、交流的内容,Content,微量元素预混料,变,变成黄褐,-,褐色是生产中的,难,难题之一。,Tawny-brownof trace mineral premix is one of the productionproblems.,变色的预混料对,饲,饲料的质量产生,严,严重的影响。,Discolorationof thepremixhas a seriousimpacton feed,s quality.,变色的原因有多,种,种原因，但根本,原,原因是氧化造成,的,的。,Many reasons for discoloration of premix,oxidation is primaryreason.,微量元素添加剂,的,的质量对变色的,影,影响及改善方法,。,。,Effectsof discoloration onpremixqualityand improvement measures.,3,2004-2006,年变色的预混料,给,给全价料的质量,造,造成严重的影响,生产打包时,数小时至,3,天后,Discolorationof thepremixcausingserious impact on mixed batch,A few hours to3 days,when the production of packaging,4,二、微量元素预,混,混料变色的原因,变色的原因有多,种,种,Fe,2+,Fe,3+,、,IO,-,3,I,2,、,Mn,2+,MnO,2,硫酸亚铁被氧化,(Fe,2+,Fe,3+,),是主要因素。,Fe,2,(SO,4,),3,Fe(OH)SO,4,The reasons ofdiscolorationfor trace mineral premix,5,初始,30,天,A1,0.03,12.6,A2,0.03,43.2,B1,0.03,7.1,B2,0.03,31.7,C1,0.03,0.5,C2,0.03,10.9,D,0.03,56.1,E,0.03,25.0,Fe,3+,/Fe,%,Fe,3+,/Fe,%,预混料,6,1.,变色主要原因：,硫,硫酸锌的质量,1.1,硫酸锌生产中大,量,量使用氧化剂除,铁,铁,Fe,2+,+H,2,O,2,+H,+,Fe,3+,+H,2,O,Fe,3+,+OH,-,Fe(OH),3,PH=1.6-1.8,加热条件,Fe,3+,水解生成黄色的,黄,黄铁矾沉淀,M,2,Fe,6,(SO),4,(OH),12,氧化剂有：,H,2,O,2,、,KMnO,4,、,NaClO,3,The primary reason for discoloration:the qualityof ZincSulfate,7,1.2,生产中可能生成,某,某些有氧化性的,物,物质,(,如过氧化物,ZnO,2,),，这类物质的存,在,在使得硫酸锌具,有,有了“氧化性”,；,；并有吸湿性久,放,放易结块。,1.3,部分硫酸锌内含,氯,氯化物，使硫酸,锌,锌易结块和吸湿,性,性，加速亚铁的,被,被氧化。,8,硫酸锌生产中正,在,在使用,H,2,O,2,除铁,Used ofhydrogen peroxide disposedof iron,in ZincSulfate production,9,1.4,不同工艺生产的,硫,硫酸锌,(,用双氧水除铁和,不,不除铁,),与同一硫酸亚铁,混,混合,(1:1),的图片,过氧化物在酸性,碱性均有氧化性,E,0,HO2-,/,OH-,=0.88V,E,0,H2O2,/,H2O,=1.78V,10,不同的硫酸锌生,产,产的预混料中,Fe,3+,的变化情况,石粉为载体的预,混,混料三价铁含量,的,的变化,沸石粉为载体的,预,预混料三价铁含,量,量的变化,Fe3+Changingof premix with different zinc sulfate production,Fe 3+changingof premix used,mountain mealas carrier,Fe 3+changingof premix used,zeoliteas carrier,11,2.,变色原因之二：,载,载体的,pH,值,2.1,硫酸亚铁在不同,的,的,PH,值环境下稳定性,有,有很大的差异,Varietystability ofFerrousSulfate in differentpH environment.,在酸性介质下,Fe,3+,+e=Fe,2+,E,0,=0.77 V,在碱性介质下,Fe(OH),3,+e=Fe(OH),2,+OH,-,E,0,=-0.56V,可见,Fe,2+,在酸性介质下稳,定,定性好,而在碱性介质下,极,极易被氧化为,Fe,3+,。,Fe2+isstability inacidicmedium,but easily tooxidized intoFe3+in alkaline medium.,Discolorationreason:thepHvalueofcarrier,12,2.2,常见,载,载体,的,的,pH,值,pHvalueofthecommoncarrier,石粉,Limestonemeal,9,CaCO,3,的理,论,论,PH=7.4,差异,的,的原,因,因,?,石粉,粉,粉碎,时,时,CaCO,3,分解,成,成,CaO,，,CaO+H,2,O=Ca(OH),2,沸石,粉,粉,zeolite,7-8,稻壳,粉,粉,p,owderedricehulls,5-6,脱脂,米,米糠,ricebransolventextracted,6-7,麦麸,wheatbran,6.5,玉米,芯,芯粉,maizecobmeal,5,磷酸,氢,氢钙,CalciumHydrogenPhosphate,5-6,13,不同载体的,预,预混料变色,情,情况,The discoloration ofpremix indifferentcarrier,14,3.,变色原因之,三,三：硫酸亚,铁,铁的质量,3.1,硫酸亚铁,(FeSO,4,H,2,O),有不同的质,量,量差异，主,要,要表现是稳,定,定性差异大,。,。,钛白粉的副,产,产品,FeSO,4,7H,2,O,是饲料级,硫酸亚铁的,主,主要原料，,杂,杂质主要为,TiO,2,、,TiOSO,4,好的产品初,始,始,Fe,3+,=200ppm,，差的产品,初,初始,Fe,3+,500 ppm,，在水中被,氧,氧化迅速。,硫酸清洗钢,铁,铁表面,(,除锈,),所得废液和,由,由废铁生产,的,的,FeSO,4,7H,2,O,，,杂质复杂稳,定,定性差。,Discoloration reason:thequality of FerrousSulfate,15,4.,变色原因之,四,四：硫酸铜,的,的游离水,4.1,在铜、铁、,锌,锌、锰这几,个,个微量元素,中,中,硫酸铜带,5,个结晶水,CuSO,4,5H,2,O,，,其余均是一,水,水盐。,FeSO,4,H,2,O,、,ZnSO,4,H,2,O,、,MnSO,4,H,2,O,CuSO,4,5H,2,O=,CuSO,4,H,2,O,+,4H,2,O (114,0,C),CuSO,4,H,2,O,和,CuSO,4,吸水性強,不稳定；,4.2,在,CuSO,4,5H,2,O,中除结晶水,外,外还有游离,水,水。,游离水：好,的,的产品,0.5%,H,2,O,是,H,+,和,OH,-,的传递剂,使一些氧化,-,还原反应更,易,易进行。,Discoloration reason:free moisturein CopperSulfate,16,5.,变色原因之,五,五：其它原,因,因,5.1,碘酸钙未预,稀,稀释,直接投料与,硫,硫酸亚铁反,应,应,-,发生的情况,很,很少。,Calcinol is notpre-diluted,then directly actionwithFerrous Sulfate,rarely happened.,IO,3,-,+Fe,2+,+H,+,=Fe,3+,+I,2,+H,2,O,5.2,载体的,pH,值更高,-,发生的情,况,况更少。,ThepH valueofcarrieris highest.Suchcase isless happened.,强碱性,Mn,2+,被氧化成,MnO,2,H,2,O,引起变色,5.3,温度和光,照,照,Temperatureandlight,Other reasons for discoloration,17,小结：微量元素,预,预混料变,色,色解析,A,1.,硫酸锌中,氧,氧化性物,质,质的残留,和,和载体的,pH,值，在预,混,混料变色,中,中起主导,作,作用，其,它,它的为次,要,要因素。,Theresidualofoxidation substancesandpHvalue ofcarriers inZinc Sulfate play aleadingrole for discolorationof traceminerals premix.,2.,在上述,2,个主要因,素,素中硫酸,锌,锌中氧化,性,性物质的,残,残留更重,要,要,(,决定性的,),，饲料级,硫,硫酸锌应,把,把氧化性,物,物质残留,作,作为质控,项,项目。,Above-mentionedtwomajor factors,the residualof oxidationsubstancesin ZincSulfateis moreimportant(crucial).Sofeed-grade ZincSulfateshould put residualof oxidationsubstancesas quality control item.,Summary:Analysis ofdiscoloration in tracemineralspremix,18,3.,改变载体,的,的,pH,值可减缓,硫,硫酸亚铁,被,被氧化的,速,速度，使,变,变色时间,延,延迟，微,量,量元素预,混,混料的载,体,体应采用,弱,弱酸性,-,中性物质,，,，石粉不,能,能做预混,料,料的载体,（,（碱性太,强,强,pH,10,），沸石,粉,粉也应慎,用,用。,Change of the pHvalue of carrier can decrease oxidationrate inFerrousSulfate,then delaythetime ofdiscoloration.Weakacid-neutralmaterials ofcarrierwasused intrace mineralspremix,limestone meal should not beused(too alkalinePH 10),and zeolite shouldbeusedwith caution.,4.,关注硫酸,亚,亚铁的稳,定,定性。,Concernabout the stabilityof Ferrous Sulfate.,19,三、铜铁,锌,锌锰微量,元,元素添加,剂,剂质控要,点,点,1.,硫酸锌,ZnSO,4,H,2,O,质控要点,Qualitycontrolof ZincSulfate,饲料级硫,酸,酸锌含量,thecontentof feedgrade Zinc Sulfate,高含量,高,高质量,h
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