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问题描述:
取苛性钠加水(10份)共热于铸铁锅中，锅中设有搅拌器，待全熔后(270℃)开始搅拌，并徐加间苯二磺酸钠，约半小时，须防泡沫溢出。反应约8～9小时，移盛于小铁盘，冷却后则为固体。
将固体粉碎投入于500份水中，加盐酸使呈酸性。当二氧化硫放出后，移于浸渍器，用戊醇浸渍4次，每次用100份，混合其浸出液，共盛于分液器中，静置1小时，分去水溶液，戊醇的间苯二酚溶液，用水蒸气加热至100℃，再通水蒸气以除去溶剂，移溶液于搪瓷干燥锅内，蒸出水分，放于铜锅加热，先蒸馏去水及酚，次用真空蒸馏至温度达190℃时，将压力改为16.9kPa，即可得间苯二酚20～23份。
解析:
Admission caustic soda water (10) were in hot iron pot, the pot with blendersAfter pending Rongji (270 ° C) mixing and Xu plus m-sodium, about half an hour, take a bubble spill.Reaction about 8-9 hours, a *** all shift in Washington iron plate, and after cooling was solid.Solid investment in 5500 will *** ash the water so acidic hydrochloride.When the sulfur dioxide released after soaking in the shift, namely pentanol dipping four times, each time with 100, Mixed its leachate.LIQUID were in Washington, put it aside for at least 1 hour to sub-aqueous solution of the resorcinol - pentanol solutionsteam heated to 100 ° C and then links steam to remove solvent drying enamel shift in the vinegar solution, steamed water.Tongguo heating up in the first to water and phenol distillation, vacuum distillation time temperature to 190 ℃.16.9kPa pressure will be changed, these days 20 to 23 plowed resorcinol.
问题描述:
取苛性钠加水(10份)共热于铸铁锅中，锅中设有搅拌器，待全熔后(270℃)开始搅拌，并徐加间苯二磺酸钠，约半小时，须防泡沫溢出。反应约8～9小时，移盛于小铁盘，冷却后则为固体。
将固体粉碎投入于500份水中，加盐酸使呈酸性。当二氧化硫放出后，移于浸渍器，用戊醇浸渍4次，每次用100份，混合其浸出液，共盛于分液器中，静置1小时，分去水溶液，戊醇的间苯二酚溶液，用水蒸气加热至100℃，再通水蒸气以除去溶剂，移溶液于搪瓷干燥锅内，蒸出水分，放于铜锅加热，先蒸馏去水及酚，次用真空蒸馏至温度达190℃时，将压力改为16.9kPa，即可得间苯二酚20～23份。
解析:
Admission caustic soda water (10) were in hot iron pot, the pot with blendersAfter pending Rongji (270 ° C) mixing and Xu plus m-sodium, about half an hour, take a bubble spill.Reaction about 8-9 hours, a *** all shift in Washington iron plate, and after cooling was solid.Solid investment in 5500 will *** ash the water so acidic hydrochloride.When the sulfur dioxide released after soaking in the shift, namely pentanol dipping four times, each time with 100, Mixed its leachate.LIQUID were in Washington, put it aside for at least 1 hour to sub-aqueous solution of the resorcinol - pentanol solutionsteam heated to 100 ° C and then links steam to remove solvent drying enamel shift in the vinegar solution, steamed water.Tongguo heating up in the first to water and phenol distillation, vacuum distillation time temperature to 190 ℃.16.9kPa pressure will be changed, these days 20 to 23 plowed resorcinol.
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