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    • 3. 发明授权
    • Preparation process for polyoxyalkylene polyol
    • 聚氧化烯多元醇的制备方法
    • US5545712A
    • 1996-08-13
    • US518279
    • 1995-08-23
    • Tomoki TsutsuiTsukuru IzukawaKazuhiko OhkuboYoshitsugu Sakaki
    • Tomoki TsutsuiTsukuru IzukawaKazuhiko OhkuboYoshitsugu Sakaki
    • C08G65/30C08G59/68
    • C08G65/30Y02P20/584
    • An alkali metal compound such as metallic cesium, cesium hydroxide, cesium hydroxide monohydrate, metallic rubidium, rubidium hydroxide or rubidium hydroxide monohydrate is used as a catalyst, crude polyoxyalkylene polyol containing the catalyst is neutralized with a mineral acid or an organic acid, an aqueous solution layer containing an alkali metal salt is brought into contact with an anion exchange resin to adsorb mineral acid anion or organic acid anion, the alkali metal compound catalyst is recovered, alkylene oxide undergoes ring-opening addition polymerization on an active hydrogen compound in the presence of the recovered alkali metal compound catalyst to prepare polyoxyalkylene polyol, the catalyst is thereafter separated, recovered and reused, and such recycle of the alkali metal compound catalyst provides an economical process.
    • 使用金属铯,氢氧化铯,氢氧化铯一水合物,金属铷,氢氧化铷或氢氧化铷一水合物等碱金属化合物作为催化剂,用无机酸或有机酸中和含有催化剂的粗聚氧化烯多元醇, 含有碱金属盐的溶液层与阴离子交换树脂接触以吸附无机酸阴离子或有机酸阴离子,回收碱金属化合物催化剂,烯化氧在存在下在活性氢化合物上进行开环加成聚合 的回收的碱金属化合物催化剂以制备聚氧化烯多元醇,然后分离,回收和再利用催化剂,并且这种碱金属化合物催化剂的再循环提供了经济的方法。
    • 4. 发明授权
    • Preparation process of polyoxyalkylene polyols and process of alkylene
oxide recovery
    • 聚氧化烯多元醇的制备方法和环氧烷回收方法
    • US5468840A
    • 1995-11-21
    • US296604
    • 1994-08-29
    • Tomoki TsutsuiTsukuru IzukawaKazuhiko OhkuboYoshitsugu Sakaki
    • Tomoki TsutsuiTsukuru IzukawaKazuhiko OhkuboYoshitsugu Sakaki
    • C08G65/30C08G59/68
    • C08G65/30Y02P20/584
    • An alkali metal compound such as metallic cesium, cesium hydroxide, cesium hydroxide monohydrate, metallic rubidium, rubidium hydroxide or rubidium hydroxide monohydrate is used as a catalyst, crude polyoxyalkylene polyol containing the catalyst is neutralized with a mineral acid or an organic acid, an aqueous solution layer containing an alkali metal salt is brought into contact with an anion exchange resin to adsorb mineral acid anion or organic acid anion, the alkali metal compound catalyst is recovered. alkylene oxide undergoes ring-opening addition polymerization on an active hydrogen compound in the presence of the recovered alkali metal compound catalyst to prepare polyoxyalkylene polyol, the catalyst is thereafter separated, recovered and reused, and such recycle of the alkali metal compound catalyst provides an economical process.
    • 使用金属铯,氢氧化铯,氢氧化铯一水合物,金属铷,氢氧化铷或氢氧化铷一水合物等碱金属化合物作为催化剂,用无机酸或有机酸中和含有催化剂的粗聚氧化烯多元醇, 使含有碱金属盐的溶液层与阴离子交换树脂接触以吸附无机酸阴离子或有机酸阴离子,回收碱金属化合物催化剂。 在回收的碱金属化合物催化剂的存在下,氧化烯在活性氢化合物上进行开环加成聚合以制备聚氧化烯多元醇,然后分离,回收和重新使用催化剂,并且这种碱金属化合物催化剂的再循环提供了经济的 处理。