一步法合成高品质N,N-二环己基-2-苯并噻唑次磺酰胺新工艺  被引量:3

NEW PROCESS FOR PRODUCING N,N′-DIECYL-2-BENZOTHICAZOLE OF HIGH QUALITY BY ONE STEP

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作  者:殷树梅[1] 王汉清[1] 黎振球[1] 徐承秋 潘鹏勇 赵新远 

机构地区:[1]青岛科技大学化工学院,山东青岛266042 [2]单县化工有限公司技术中心,山东单县274300

出  处:《精细石油化工》2006年第6期7-9,共3页Speciality Petrochemicals

摘  要:采用同时滴加NaCl、促进剂M的钠盐和硫酸溶液的方法合成了橡胶硫化促进剂DZ(N,N-二环己基-2-苯并噻唑次磺酰胺)。较佳合成条件为:n(促进剂M):n(二环己胺):n(NaClO)=1:(0.9~0.95): (1.35~1.40),反应温度36~46℃,反应时间3 h,pH值9.8~10.2。中型试验结果表明:DZ收率大于初熔点大于95℃、熔程0.5~1.0℃、游离2,2′-二硫代苯并噻唑质量分数小于0.5%。A new process for the synthesis of rubber sulfidation accelerant DZ(N, Nr-diecyl-2 benzothicazole) by simultaneous addition of three reactants was studied. The influences of n (M) : n (C12 H23N) : n (NaClO), pH value, temperature and reaction time on the yield and the quality of DZ were investigated. The optimal conditions were found as follows : n (M) : n (C12 H23 N) : n (NaClO) = 1: (0.9-1.95) : (1.35 1.40), pH=9.8-10.2, temperature 3-46 ℃, reaction time 3 h. With melting points, yield and DM content being adopted as the main criterions, a high quality product, which has an initial melting point of 95 ℃, melting range 0. 5 - 1 ℃ and free DM content below 0.5 %, was obtained with the yield above 80 %.

关 键 词:橡胶硫化促进剂 N N-二环己基2-苯并噻唑次磺酰胺 合成 二环己胺 

分 类 号:TQ330.385[化学工程—橡胶工业]

 

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