A CHROMIUM CATALYST, ITS PREPARATION AND USE

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chro...

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Bibliographische Detailangaben
Hauptverfasser:	PFAB PETER, BROCKWAY DAVID JAMES, SCHWAB MATTHIAS GEORG, ZOU WEIQING JOE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium (III) oxide and chromium (VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition. 本文公开了具有降低的铬(VI)含量的氧化铬催化剂组合物、制造氧化铬催化剂组合物和系统的方法和所述氧化铬催化剂组合物和系统的示例性用途。所公开的催化剂可以是凝胶并可包含氧化铬(III)和氧化铬(VI)，氧化铬(VI)的量为基于氧化铬催化剂组合物中的总铬氧化物含量的大约10,000ppm或更少。