发明授权
- 专利标题: Heterogeneous alkoxylation using anion-bound metal oxides
- 专利标题(中): 使用阴离子结合金属氧化物的非均相烷氧基化
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申请号: US669780申请日: 1991-03-14
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公开(公告)号: US5136106A公开(公告)日: 1992-08-04
- 发明人: Stephen W. King
- 申请人: Stephen W. King
- 申请人地址: CT Danbury
- 专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人地址: CT Danbury
- 主分类号: C07C41/03
- IPC分类号: C07C41/03 ; C08G65/26
摘要:
Active-hydrogen compounds, for example, primary and secondary alcohols or diols, are alkoxylated, for example, ethoxylated, using solid anion-bound metal oxide catalysts, such as, zirconium oxysulfate catalyst. Hydrous zirconium oxide is treated with solutions of sulfate phosphate, nitrate or tetrafluoroborate and calcined in air at 300.degree. to 950.degree. C. to produce highly active heterogeneous alkoxylation catalysts. The amorphous catalysts afford narrow molecular weight products. The catalyst can be removed from the product by filtration and reused with no significant loss in activity. Reaction temperatures of 50.degree. to 140.degree. C. are employed for alkoxylation.
公开/授权文献
- US4577388A Method of cutting apertures in lining in underground pipes 公开/授权日:1986-03-25
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