首页>
外国专利>
PHOSPHORUS MODIFIED CRACKING CATALYSTS WITH ENHANCED ACTIVITY AND HYDROTHERMAL STABILITY
PHOSPHORUS MODIFIED CRACKING CATALYSTS WITH ENHANCED ACTIVITY AND HYDROTHERMAL STABILITY
展开▼
机译:具有增强的活性和水热稳定性的磷改性裂化催化剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
A phosphorus modification of an FCC catalyst is provided by reducing the sodium content of the as formed catalyst, a first treatment with a phosphate solution, a second ammonium exchange to further reduce the sodium content of the phosphorus solution treated catalyst and a second treatment with a phosphate solution.
展开▼