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    • 10. 发明授权
    • Concurrent epoxidation and catalyst residue extraction
    • 并行环氧化和催化剂残渣萃取
    • US5543472A
    • 1996-08-06
    • US442520
    • 1995-05-16
    • Craig A. StevensBhaskar P. RaoCary A. VeithJames R. Erickson
    • Craig A. StevensBhaskar P. RaoCary A. VeithJames R. Erickson
    • C08C2/04C08C19/06C08F8/08
    • C08C2/04C08C19/06
    • A process for the concurrent epoxidation of, and catalyst residue extraction from, anionically polymerized diene-containing polymers which have been hydrogenated using a Group VIII metal catalyst, said process comprising:(a) introducing a catalyst residue-containing diene-containing polymer cement into a reactor,(b) heating the polymer cement to a temperature of 25.degree. to 65.degree. C.,(c) contacting the polymer cement with a caustic solution,(d) contacting the polymer cement with a peracid solution,(e) mixing the polymer, caustic, and acid at 25.degree. to 65.degree. C. for 1/2 to 3 hours,(f) optionally adding sufficient caustic solution to neutralize excess acid while continuing the mixing,(g) adding sufficient water such that the aqueous/organic phase weight ratio is from 0.2:1 to 1:1 while continuing the mixing,(h) allowing the phases to settle for 5 to 90 minutes,(i) removing the aqueous phase from the reactor,(j) optionally repeating steps (g), (h), and (i) until the catalyst residue contents are less than 10 ppm, and(k) removing the polymer cement from the reactor and removing the solvent to recover the epoxidized polymer.
    • 一种使用VIII族金属催化剂进行氢化的阴离子聚合的含二烯烃聚合物的并行环氧化和催化剂残余物萃取的方法,所述方法包括:(a)将含催化剂残余物的含二烯烃的聚合物水泥引入 反应器,(b)将聚合物粘合剂加热到25℃至65℃的温度,(c)使聚合物粘合剂与苛性碱溶液接触,(d)使聚合物粘合剂与过酸溶液接触,(e)混合 25℃至65℃的聚合物,苛性碱和酸,+ E,1/2 + EE至3小时,(f)任选地加入足够的苛性碱溶液以中和过量的酸,同时继续混合,(g)加入 足够的水使得水/有机相重量比为0.2:1至1:1,同时继续混合,(h)允许相沉降5至90分钟,(i)从反应器中除去水相, (j)任选地重复步骤(g),(h)和(i)直到cata st渣残渣含量小于10ppm,(k)从反应器中除去聚合物粘合剂并除去溶剂以回收环氧化聚合物。