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That this is designed and directly adopts the intermediate act as the raw material to amino phenol, HAc as the acylization dose, the reaction obtains the paracetamol after the acyl. The main chemical reaction equation is as follows :
Notes: we must pay attention to p-aminophenol which is poisonous, it will lead our skin get eczema easily if we touch it. So during the process, we shoule get protective outfit and avoid touching straightly. The acylate solvent of ice-acetum has the cauterization and it can stimulate our breath organ. HAc’s steam also is poisonous and flammable. So we should notice to get it in the drafty place, avoid touching it and wash with water if we touch it carelessly.
目录
1 总论 1
1.1 产品介绍 1
1.2 产品用途 1
1.3 市场情况 1
1.4 扑热息痛合成工艺路线 3
1.4.1 合成工艺路线简述 3
1.4.2以对硝基苯酚钠为原料的合成路线 4
1.4.3以苯酚为原料的合成路线 4
1.4.4以硝基苯为原料的路线 5
1.4.5以苯二酚为原料的合成路线 7
1.4.6以对羟基苯乙酮为原料的合成路线 7
1.4.7 结论 7
2 工艺流程 9
2.1 主反应化学方程式 9
2.2流程框图 9
2.3工艺流程简述 10
2.4 带控制点工艺流程图 11
3 物料衡算 12
3.1 物料衡算总依据 12
3.2 各主要工序的物料衡算 12
3.2.1 酰化的设计依据和物料衡算 12
3.2.2 酰化冷却结晶设计依据和物料衡算 14
3.2.3 溶解脱色设计依据和物料衡算 15
3.2.4 精致冷却结晶设计依据和物料衡算 16
3.2.5 干燥设计依据和物料衡算 17
3.2.6 浓缩锅设计依据和物料衡算 18
3.2.7 酸母液浓缩后冷却结晶设计依据和物料衡算 19
3.2.8 蒸发器设计依据和物料衡算 19
3.2.9 精馏设计依据和物料衡算 20
3.3物料衡算图 21
4 化工设备的计算及选型 22
4.1 主要设备计算及选型 22
4.1.1 配料锅 22
4.1.2 酰化锅 22
4.1.3 酰化后冷却结晶锅 23
4.1.4 溶解脱色锅 23
4.1.5 溶解冷却结晶锅 23
4.1.6 酸母液浓缩锅 24
4.1.7 酸母液浓缩后冷却结晶锅 24
4.1.8 精母液冷却结晶锅 24
4.2 辅助设备计算及选型 25
4.2.1 98％浓醋酸储槽 25
4.2.2 酸母液储槽 25
4.2.3 62％稀醋酸储槽 25
4.2.4 85％回收酸储槽 25
4.2.5 精母液储槽 26
4.2.6 蒸发后精母液储槽 26
4.2.7 进配料锅98％浓醋酸计量槽 26
4.2.8 进配料锅85％回收酸计量槽 26
4.2.9 进配料锅62％稀醋酸计量槽 27
4.2.10 进配料锅酸母液计量槽 27
4.2.11 进冷却结晶锅62％稀醋酸计量槽 27
4.2.12进精制冷却结晶锅水计量槽 27
4.2.13 进酸母液浓缩锅酸母液计量槽 28
4.2.14 进酸母液浓缩锅62％稀醋酸计量槽 28