自然循环蒸发器中氯化钠大晶体的生长控制

自然循环蒸发器中氯化钠大晶体的生长控制第34卷V0134中国井矿盐CHINAWI==LLANDROCKSALT自然循环蒸发器中氯化钠大晶体的生长控制韦丽红．李志远(河北大学化学与环境学院．河北保定071C02)摘要：研究了岩盐卤水在-添加荆烷基磺酰氯存在下氯化钠大晶体的快速生长控制机理。对不|；1烷基链长度及浓度对影响晶体生长的条件作了探计，得到了最优化方案。用自然循环蒸发器代替强制循环式结晶嚣．解丧了结垢及容易堵塞管追以鹿需要定期清洗设备的弊端，降低了能源消耗．节约了生产成本．提高了氯f【匕钠纯度。关键词：自然循环蒸炭器；生长控制；烷基磺酰氯；成柱速率中翻分类号：TQ：131文献标识码：A文章编号：1001—0335(2003)04—0015—03GrowthControlofNaCIMacrocrystalsinEvaporatorwithNaturalCirculationweiLihong，LiZhiyuanChemisUyandEnvironmentInstituteofHebclUtdvemityBaoding．Hebei071002)Abstract：ThefastgrowthcontrollingmechanismofNaCImacrocrystalsinrocksaltbrineaddedwithalkylsalfonylchlorideisstudied1'heinfluenceofthelengthandconcentration0falkylchainonerysmlgrowthisdiscussedandtheoptimumschemeisobtained．Usingevaporatorwithnaturalcirculationinplaceofevaporatorwithforcedalrculationhassolvedtheproblemsoffouling。tubepluggingandperiodicalwashingofequipment．Ithasaisoreducedtheenemyeonsamption，loweredthepreduetioncostaadenhancedthepurityofsodiumchlorideKeywords：EvaporatofwithnaturalcircMation；gmwthcont