Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2011-05-03
2011-05-03
Silverman, Stanley (Department: 1736)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S302000, C502S309000, C502S325000, C502S349000, C502S350000, C502S353000
Reexamination Certificate
active
07935654
ABSTRACT:
The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield.in-line-formulae description="In-line Formulae" end="lead"?CrZrjAkOx [Formula 1]in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CrZrjAkPlOx [Formula 3]in-line-formulae description="In-line Formulae" end="tail"?Wherein, j, k, l and x are as indicated in the description.
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Choi Jun-seon
Kang Chang-hoon
Kang Jun-Han
Noh Si-hyun
Park Byoung-gi
LG Chem Ltd.
McKenna Long & Aldridge LLP
Silverman Stanley
Zimmer Anthony J
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