一种色谱级三氯甲烷的制备方法
申请公布号:CN105693462A
申请号:CN201410693063.X
申请日期:2014.11.26
申请公布日期:2016.06.22
发明人:王家濬
分类号:C07C17/389(2006.01)I;C07C19/04(2006.01)I
主分类号:C07C17/389(2006.01)I
代理人:李蕊
地址:300000 天津市津南区咸水沽镇工业园区兴园路11号
摘要:本发明提供了一种色谱级三氯甲烷的制备方法,具体步骤为:(1)取果壳活性炭DV11干燥脱水并冷却后,装入玻璃柱中;(2)将工业级三氯甲烷由上而下经玻璃柱做柱层析吸附处理,即得色谱级三氯甲烷;该方法所得色谱级三氯甲烷纯度高,工艺简单合理,产品合格率高,适合规模化工业生产的需要。
主权项:一种色谱级三氯甲烷的制备方法,其特征在于:具体制备步骤如下:(1)取果壳活性炭DV11干燥脱水并冷却后,装入玻璃柱中;(2)将工业级三氯甲烷由上而下经玻璃柱做柱层析吸附处理,即得色谱级三氯甲烷。
POLYURETHANE-BASED RESIN PRECURSOR COMPOSITION
THERMAL HEAD AND METHOD FOR CONTROLLING THERMAL HEAD
SETTING METHOD OF RESIN FILLING TIME IN INJECTION MOLDING
PRIZE-WINNING BALL DEVICE OF PINBALL MACHINE
ABNORMALITY DEALING METHOD OF ON/OFF VALVE FOR GRAIN DRIER
INDIRECT HEATING TYPE ROTARY DRIER FOR GRANULAR BODY
CONTROLLING METHOD FOR AMOUNT OF FED WATER FOR HOT WATER FEEDER
ATTACHING DEVICE FOR CATHODE-RAY TUBE
LATHER GENERATING DEVICE FOR WASHING BODY
FIELD EMISSION TYPE ELECTRON MICROSCOPE
MANUFACTURE OF VACUUM INTERRUPTER
HEAT EXCHANGING BODY FOR COOLNG TOWER, WHICH IS MADE OF SYNTHETIC RESIN