Method for producing zeolites with reduced surface acidity

Patent · Tue Aug 10 00:00:00 EDT 1993

OSTI ID:6235915

Apelian, M R; Degnan, T F; Fung, A S

A process is described for the selective surface dealumination of an organic-containing zeolite comprising contacting said zeolite with dicarboxylic acid for a sufficient time to effect at least about a 25% reduction in surface acidity with less than about 50% overall dealumination. The process of claim 1 is described wherein said organic-containing zeolite is bound with an inorganic oxide binder prior to said selective surface dealumination. The product of the process by claim 1 is also described.

• Assignee: Mobil Oil Corp., Fairfax, VA (United States)
• Patent Number(s): A; US 5234872
• Application Number: PPN: US 7-881281
• OSTI ID: 6235915
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM
CARBOXYLIC ACIDS
CATALYTIC EFFECTS
DEMETALLIZATION
ELEMENTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PH VALUE
SEPARATION PROCESSES
SILICATE MINERALS
SURFACE PROPERTIES
ZEOLITES