精细石油化工
精細石油化工
정세석유화공
SPECIALITY PETROCHEMICALS
2009年
6期
25-27
,共3页
橡胶抗臭氧剂%N,N'-一二环己基硫脲%环己胺%二硫化碳%正交实验
橡膠抗臭氧劑%N,N'-一二環己基硫脲%環己胺%二硫化碳%正交實驗
상효항취양제%N,N'-일이배기기류뇨%배기알%이류화탄%정교실험
rubber anti-ozone agents%N,N'-dicyclohexyl thiourea%orthogonal test%characterization%the best conditions
实验以环己胺水溶液和二硫化碳为原料,在无催化剂的条件下,探索了以环己胺水溶液和二硫化碳反应制备N,N'-二环己基硫脲的过程.实验表明,该实验反应条件温和、环保,并以正交实验得出最佳合成工艺条件为:环己胺水溶液浓度为10%,n(环己胺):n(二硫化碳)=2.1:1,缓慢滴加二硫化碳(约0.1 mL/min),在40℃恒温状态下反应5 h,收率可达到93.33%.
實驗以環己胺水溶液和二硫化碳為原料,在無催化劑的條件下,探索瞭以環己胺水溶液和二硫化碳反應製備N,N'-二環己基硫脲的過程.實驗錶明,該實驗反應條件溫和、環保,併以正交實驗得齣最佳閤成工藝條件為:環己胺水溶液濃度為10%,n(環己胺):n(二硫化碳)=2.1:1,緩慢滴加二硫化碳(約0.1 mL/min),在40℃恆溫狀態下反應5 h,收率可達到93.33%.
실험이배기알수용액화이류화탄위원료,재무최화제적조건하,탐색료이배기알수용액화이류화탄반응제비N,N'-이배기기류뇨적과정.실험표명,해실험반응조건온화、배보,병이정교실험득출최가합성공예조건위:배기알수용액농도위10%,n(배기알):n(이류화탄)=2.1:1,완만적가이류화탄(약0.1 mL/min),재40℃항온상태하반응5 h,수솔가체도93.33%.
N,N'-Dicyclohexyl-thiourea was synthesized with cyclohexylamine in aqueous solution and carbon disulfide in the absence of catalysts. The results showed that the reaction conditions were mild and environmental friendly. The optimum experimental conditions were found through the orthogonally arranged experiments: solution concentration of cyclohexylamine 10%, n(cyclohexylamine) : n (carbon disulfide) =2.1 : 1, adding carbon disulfide slowly (about 0.1 mL/min), reaction temperature 40 ℃ and reaction time 5 h. Under the optimum conditions, the yield was up to 93.33 %. The product was characterized by the smelting point and IR.
