GB1514522A - Manufacture of heat-resistant and acid-resistant zeolites from alkali metal faujasites - Google Patents

Manufacture of heat-resistant and acid-resistant zeolites from alkali metal faujasites

Info

Publication number
GB1514522A
GB1514522A GB3095875A GB3095875A GB1514522A GB 1514522 A GB1514522 A GB 1514522A GB 3095875 A GB3095875 A GB 3095875A GB 3095875 A GB3095875 A GB 3095875A GB 1514522 A GB1514522 A GB 1514522A
Authority
GB
United Kingdom
Prior art keywords
ion exchange
alkali metal
acid
calcined
resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3095875A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19742435716 external-priority patent/DE2435716C3/en
Application filed by BASF SE filed Critical BASF SE
Publication of GB1514522A publication Critical patent/GB1514522A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/084—Y-type faujasite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof

Abstract

1514522 Heat and acid resistant silicate materials BASF AG 24 July 1975 [25 July 1974] 30958/75 Heading C1A A heat and acid resistant zeolite is made by (i) subjecting an alkali metal faujasite having an SiO 2 :Al 2 O 3 molar ratio of 4-7 to ion exchange to replace all but 5-7% by weight of alkali metal ions (calculated as Na 2 O 3 ) by NH 4 <SP>+</SP> ions, (ii) calcining the ion exchange material at a temperature of 700-800‹C. without prior drying, (iii) subjecting the calcined material to ion exchange with NH 4 <SP>+</SP> ions to further reduce the alkali metal ion content to less than 2À5%, (iv) calcining the ion exchange product without prior drying at a temperature of 800-900‹C and thereafter (v) optionally treating the calcined product with an aqueous solution of a strong mineral acid to remove at least part of Al from lattice and (vi) (a) drying or (b) calcining to provide Si in at least some of defect positions. The first and/or second ion exchange treatments may be carried out using aqueous solutions of NH 4 Cl, (NH 4 ) 2 SO 4 , NH 4 NO 3 , (NH 4 ) 2 CO 3 , CH 3 COONH 4 or HCOONH 4 . To manufacture zeolites with a molar ratio SiO 2 :Al 2 :O 3 of up to 8 the final acid treatment may be omitted and a buffer solution of pH 3À5-6À5 is used in the second exchange stage. When higher SiO 2 :Al 2 O 3 ratios are required the calcined zeolite in the second ion exchange is treated with 1-6 N mineral acid, e.g. HNO 3 , HCl or H 2 SO 4 for a period of 1-10 hours. Molar ratios greater than 60 may be obtained. After the acid treatment the product may be filtered, dried and calcined at 300-1100‹C
GB3095875A 1974-07-25 1975-07-24 Manufacture of heat-resistant and acid-resistant zeolites from alkali metal faujasites Expired GB1514522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742435716 DE2435716C3 (en) 1974-07-25 Process for the production of heat and acid stable zeolites from alkali faujasites

Publications (1)

Publication Number Publication Date
GB1514522A true GB1514522A (en) 1978-06-14

Family

ID=5921439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3095875A Expired GB1514522A (en) 1974-07-25 1975-07-24 Manufacture of heat-resistant and acid-resistant zeolites from alkali metal faujasites

Country Status (2)

Country Link
FR (1) FR2279668A1 (en)
GB (1) GB1514522A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011622A (en) * 1988-10-10 1991-04-30 Lever Brothers Company, Division Of Conopco, Inc. Liquid cleaning compositions and process for their preparation
GB2203735B (en) * 1987-03-31 1991-07-03 Mizusawa Industrial Chem Tetracosahedral siliceous particles and process for preparation thereof
EP1613426B1 (en) * 2002-11-27 2015-10-21 PQ Holding, Inc. High surface area zeolites and methods for preparation and use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1131195A (en) * 1978-02-23 1982-09-07 David E. Earls Ultrahydrophobic zeolite y

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203735B (en) * 1987-03-31 1991-07-03 Mizusawa Industrial Chem Tetracosahedral siliceous particles and process for preparation thereof
US5011622A (en) * 1988-10-10 1991-04-30 Lever Brothers Company, Division Of Conopco, Inc. Liquid cleaning compositions and process for their preparation
EP1613426B1 (en) * 2002-11-27 2015-10-21 PQ Holding, Inc. High surface area zeolites and methods for preparation and use thereof

Also Published As

Publication number Publication date
DE2435716A1 (en) 1976-02-05
FR2279668A1 (en) 1976-02-20
FR2279668B3 (en) 1979-04-27
DE2435716B2 (en) 1977-04-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930724