发明名称 |
METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE |
摘要 |
Direct oxidation of propylene to propylene oxide is accomplished using alkaline earth metal compound-supported silver catalysts containing tungsten and potassium promoters. In one embodiment of the invention, the tungsten promoter and the potassium promoter are simultaneously introduced through the use of potassium tungstate. Catalysts of this type exhibit unusually high propylene oxide productivity when carbon dioxide is present in the feedstream. |
申请公布号 |
KR20010112888(A) |
申请公布日期 |
2001.12.22 |
申请号 |
KR20000032917 |
申请日期 |
2000.06.15 |
申请人 |
HYNIX SEMICONDUCTOR INC. |
发明人 |
AHN, BYEONG JIN;JU, SEOK JIN;LEE, DONG GI;SHIN, SEONG HUN |
分类号 |
H01L21/28 |
主分类号 |
H01L21/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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