GB974644A - A process for the production of bonded molecular sieve pellets - Google Patents

A process for the production of bonded molecular sieve pellets

Info

Publication number
GB974644A
GB974644A GB4026962A GB4026962A GB974644A GB 974644 A GB974644 A GB 974644A GB 4026962 A GB4026962 A GB 4026962A GB 4026962 A GB4026962 A GB 4026962A GB 974644 A GB974644 A GB 974644A
Authority
GB
United Kingdom
Prior art keywords
molecular sieve
zeolite
pellets
produced
silica sol
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
GB4026962A
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.)
Bayer AG
Original Assignee
Bayer AG
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
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB974644A publication Critical patent/GB974644A/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
    • B01J29/60—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the type L, as exemplified by patent document US3216789
    • 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
    • B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/42—Addition of matrix or binder particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Molecular sieve pellets bonded with silicic acid are produced by forming a plastic composition from a molecular sieve zeolite having a water content of more than 8% and from an aqueous silica sol having a specific surface area between 150 and 400 m.2/g. (according to B.E.T.) and a concentration between 10 and 40% by weight (calculated on the SiO2), and then granulating drying and activating the plastic composition. The water content of the molecular sieve zeolite is preferably between 16 and 20%, and said zeolite when suspended in distilled water preferably produces a pH value between 8 and 11. The silica sol may be produced by ion exchange of sodium silicate and subsequent alkali stabilization. The pellets of this invention are said to have the advantage that they induce surprisingly small amounts of by-products in the absorption of olefinic hydrocarbons. Activation of the zeolite is usually effected at 300-350 DEG C. Specification 974,643 is referred to.
GB4026962A 1961-10-25 1962-10-24 A process for the production of bonded molecular sieve pellets Expired GB974644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF35209A DE1164995B (en) 1961-10-25 1961-10-25 Process for making bound molecular sieves

Publications (1)

Publication Number Publication Date
GB974644A true GB974644A (en) 1964-11-11

Family

ID=7095904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4026962A Expired GB974644A (en) 1961-10-25 1962-10-24 A process for the production of bonded molecular sieve pellets

Country Status (2)

Country Link
DE (1) DE1164995B (en)
GB (1) GB974644A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312584A1 (en) * 1987-05-01 1989-04-26 Mobil Oil Corporation Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity
US5053374A (en) * 1987-05-01 1991-10-01 Mobil Oil Corporation Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity
US5098448A (en) * 1984-01-18 1992-03-24 Bayer Aktiengesellschaft Process for the production of molecular sieve granulates
EP0767002A1 (en) * 1995-10-06 1997-04-09 Air Products And Chemicals, Inc. Adsorbents for ozone recovery from gas mixtures

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1792743B1 (en) * 1966-12-01 1972-12-07 Herrmann Gebr METHOD OF MANUFACTURING BONDED ZEOLITHIC MOLECULAR Sieves With Apparently Reduced Pore Diameters
DE2805546A1 (en) * 1978-02-10 1979-08-16 Kali Chemie Ag PROCESS FOR THE PRODUCTION OF GRANULATES CONTAINING MOLECULAR SCREEN OF GOOD MECHANICAL STRENGTH
US5120693A (en) * 1991-03-25 1992-06-09 Uop Bonded adsorbent agglomerates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865867A (en) * 1956-12-26 1958-12-23 Shell Dev Solid contact material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098448A (en) * 1984-01-18 1992-03-24 Bayer Aktiengesellschaft Process for the production of molecular sieve granulates
EP0312584A1 (en) * 1987-05-01 1989-04-26 Mobil Oil Corporation Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity
EP0312584A4 (en) * 1987-05-01 1989-09-11 Mobil Oil Corp Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity.
US5053374A (en) * 1987-05-01 1991-10-01 Mobil Oil Corporation Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity
EP0767002A1 (en) * 1995-10-06 1997-04-09 Air Products And Chemicals, Inc. Adsorbents for ozone recovery from gas mixtures

Also Published As

Publication number Publication date
DE1164995B (en) 1964-03-12

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