石英岩玉废料水热合成雪硅钙石的工艺与地质指示

打开文本图片集

中图分类号：P579；TB39 文献标识码：A 文章编号：2097-5465（2025）06-0025-10

Abstract：Thewastematerialsfromquartzitejademiningarediscardedduetodificultiesinrecyclingandlowcontent，causing environmentalpolution.Thisstudyusesquartzitejadeasrawmaterialtopreparetobermoritebyhydrothermalsynthesis，exploring theeffctsofreactiontemperature，time，liqud-solidratioandotherfactorsonthesynthesisprocess．Inaddtion，XRDandSEM areused tocharacterizetheproducts，soastoealizetheigh-valueutilizationofwastematerials.Chosingtobermoriteasthe conversiontargethasgeologicalgenesisrationality，andcanmeettheneedsofenvironmentalprotectionadsorption，building material reinforcement and other fields.The results show that 24 0‰ ，6h，and a liquid-solid ratio of 12：1 are the optimal conditions.Undertheseconditions，thewasteconversionrateishigh，thetobermoritehashighcrystalinityandpresentsregular fibrousshape，anditsperformanceissimilartothatofproductssynthesizedfromtradionalrawmaterials.Whenthecalcium-silicon ratioisO.85，thecrystalstructureisregular，thecrystalinityishigh，andtherearefewimpurities.Impurityionssuchasion， aluminum，andmagnesium havediferentefects，butfactorssuchasreactiontemperature，pressure，and timeplayakeyrole. Performanceanalysisresultsshow that thesynthesized tobermorite hasacrystallinity higher than 85 % ，unique microscopic morphology，excelentadsorptionperformance，andlargespecificsurfacearea，withacloserelationshipbetweenchemical compositionandperformance.Thisstudycanprovideatechnicalschemeforthetreatmentofquartzitejadewaste.Inaddition，by revealingthelawof"wastecomposition-synthesisperformance"，itcaninfertheindustrialutilizationvalueoforebodies，andten reverselyguide the explorationofquartzite ore bodies.

Keywords：quartzitejade waste；tobermorite；hydrothermal synthesis method；geologicalseting；prospectingguide

0 引言

雪硅钙石 Ca5Si6O16（OH）2⋅4H2O] 作为重要的硅酸盐矿物，因其优异的高温稳定性、机械性能及化学稳定性，在陶瓷、玻璃、水泥等传统工业领域占据重要地位。（剩余11332字）