GB1314117A - Method for the production of crystalline zeolites - Google Patents

Method for the production of crystalline zeolites

Info

Publication number
GB1314117A
GB1314117A GB1314117DA GB1314117A GB 1314117 A GB1314117 A GB 1314117A GB 1314117D A GB1314117D A GB 1314117DA GB 1314117 A GB1314117 A GB 1314117A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
hours
solution
hydrogel
ions
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
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.)
Nikolina V Y
Original Assignee
Nikolina V Y
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 Nikolina V Y filed Critical Nikolina V Y
Publication of GB1314117A publication Critical patent/GB1314117A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C01B33/28—Base exchange silicates, e.g. zeolites
    • C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
    • C01B33/2838—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively)
    • C01B33/2853—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively) of type Y
    • 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
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C01B33/28—Base exchange silicates, e.g. zeolites
    • C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
    • C01B33/2869—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of other types characterised by an X-ray spectrum and a definite composition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1314117 Crystalline zeolites V Y NIKOLINA and LIKNYSH 8 July 1971 32083/71 Heading C1A Crystalline zeolites are produced by reacting a solution of an alkali metal silicate with a solution of an alkali metal aluminate in the presence of a substance which forms a complex with hydroxylaluminate ions, and an ammonium salt, the quantity of the salt being sufficient for partial precipitation of silica from the solution of an alkali metal silicate, homogenizing, maturing and crystallizing an alkali metal aluminosilicate hydrogel thus formed and isolating zeolite crystals produced from the leach. Before crystallization the reaction mixture is stirred until homogenization for 0À25 to 2 hours and is allowed to stay until a hydrogel formed becomes mature for 0À5 to 48 hours at 20‹ to 40‹ C. and then the hydrogel is crystallized at 80‹ to 120‹ C. for 12 to 120 hours. Preferably the quantity of ammonium salt, which may be the chloride, acetate, nitrate or sulphate, is from 0À02 to 0À5 of the quantity which is equivalent to the content of an alkali metal oxide in an alkali metal silicate. Preferably the substance adapted to form a complex with hydroxyl aluminate ions comprises a compound containing phosphate ions, e.g. a soluble phosphate or phosphoric acid. The quantity of compound comprising phosphate ion should correspond to a ratio P 2 O 5 : Al 2 O 3 of 0À2 to 1À2 in the reaction mixture.
GB1314117D 1971-07-08 1971-07-08 Method for the production of crystalline zeolites Expired GB1314117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3208371 1971-07-08

Publications (1)

Publication Number Publication Date
GB1314117A true GB1314117A (en) 1973-04-18

Family

ID=10332959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314117D Expired GB1314117A (en) 1971-07-08 1971-07-08 Method for the production of crystalline zeolites

Country Status (1)

Country Link
GB (1) GB1314117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098686A (en) * 1988-10-10 1992-03-24 Societe Nationale Elf Aquitaine Synthesis of zeolites of faujasite structure
US5192520A (en) * 1989-09-13 1993-03-09 Societe National Elf Aquitaine Synthesis of aluminosilicate zeolites of faujasite structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098686A (en) * 1988-10-10 1992-03-24 Societe Nationale Elf Aquitaine Synthesis of zeolites of faujasite structure
US5192520A (en) * 1989-09-13 1993-03-09 Societe National Elf Aquitaine Synthesis of aluminosilicate zeolites of faujasite structure

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees