. Journal. ly emptiedseveral times a day, and the deposited saltdissolved by charging the evaporator withthin liquors, or if need be with is obvious that everything depended onthe eare of the manipulator, and 1 may saythat I have seen some evaporators whichworked for two days of the week, whilstthe remaining days of the week woeemployed in chipping out the hard salt OniSt Which bad settled on the tubes. A more rapid circulation of the liquid, and con-sequently a washing away from the tubes ofa large portion of the separated salt, wasobtained by using evaporators fitted with aheating s
. Journal. ly emptiedseveral times a day, and the deposited saltdissolved by charging the evaporator withthin liquors, or if need be with is obvious that everything depended onthe eare of the manipulator, and 1 may saythat I have seen some evaporators whichworked for two days of the week, whilstthe remaining days of the week woeemployed in chipping out the hard salt OniSt Which bad settled on the tubes. A more rapid circulation of the liquid, and con-sequently a washing away from the tubes ofa large portion of the separated salt, wasobtained by using evaporators fitted with aheating surface of the Aspinal drum typeor of similar type. But even here verymuch depends upon the care with whichthe apparatus is worked. To avoiddifficulties in small works, where work is only carriedon during the day. the evaporators are emptied in theevening, and boiled out with thin lyes or with water, orwhere the operations are carried on day and night, theheating surfaces are cleaned by washing out after the.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
