Stable antimony compositions for the passivation of metal contaminated cracking catalysts

Patent · Tue Jun 12 00:00:00 EDT 1990

OSTI ID:6679998

Johnson, M M; Tabler, D C

This patent describes a stable aqueous metals passivating agent. It comprises: about 10 to about 97 weight percent water, about 1 to about 50 weight percent particulate antimony oxide, and a stabilizing amount of vinyl copolymer in the range of about 0.2 to about 3 weight percent. The weight percentages are based on the total weight of the aqueous metals passivating agent and the vinyl copolymer being the ammonium alt prepared by adding ammonium hydroxide to the hydrolyzed acid form of a poly(methylvinyl ether/maleic anhydride) consisting essentially of repeating units of the formula.

• Assignee: Phillips Petroleum Co., Bartlesville, OK (USA)
• Patent Number(s): US 4933095; A
• Application Number: PPN: US 7-264294A
• OSTI ID: 6679998
• Resource Relation: Patent File Date: 28 Oct 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CATALYSTS
PASSIVATION
AMMONIUM HYDROXIDES
ANTIMONY COMPOUNDS
AQUEOUS SOLUTIONS
CATALYTIC CRACKING
CHEMICAL COMPOSITION
MALEIC ACID
POLYVINYLS
AMMONIUM COMPOUNDS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DICARBOXYLIC ACIDS
DISPERSIONS
HYDROGEN COMPOUNDS
HYDROXIDES
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERS
PYROLYSIS
SOLUTIONS
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing