GB1007853A - Process for producing synthetic crystalline zeolites - Google Patents

Process for producing synthetic crystalline zeolites

Info

Publication number
GB1007853A
GB1007853A GB2716762A GB2716762A GB1007853A GB 1007853 A GB1007853 A GB 1007853A GB 2716762 A GB2716762 A GB 2716762A GB 2716762 A GB2716762 A GB 2716762A GB 1007853 A GB1007853 A GB 1007853A
Authority
GB
United Kingdom
Prior art keywords
attrition
alumina
zeolitic molecular
aqueous
attrited
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
GB2716762A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1007853A publication Critical patent/GB1007853A/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
    • C01B33/2815—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 type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L)

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

Synthetic crystalline zeolitic molecular sieves, especially zeolites A, X and Y (see Specifications 777,232, 777,233, 909,266), are made from an aqueous mixture, by a process which comprises forming an aqueous reactant system having an initial overall composition defined in terms of oxide mole ratios R2O/SiO2=a, SiO2/Al2O3=b, H2O/R2O=C, where a, b and c are the essential determinants for the type of zeolitic molecular sieve desired, R is an alkali metal and at least the major source of silica, alumina or silica and alumina is a naturally occurring alumina silicate which has been subjected to attrition treatments, until its residual crystallinity is a maximum of 30% and preferably 15% according to its X-ray diffraction pattern, and the zeolitic molecular sieve is crystallized from the reactant mixture at 20 DEG to 120 DEG C. Attrition may be carried out using an automatic mortar and pestle, vibratory ball mill, or mills of the roller, pebble, rod, tube, disc, attrition, fluid energy or jet type. Specially suitable starting materials include kaolinite, dickite, nacrite, endellite, halloysite, anauxite, montmorillonite, beidellite, pyrophyllite, muscovite or paragonite. The attrited minerals may be compressed into a shaped body and added to the aqueous reactant mixture and subjected to crystallization to form the zeolite within the body. The examples, which include comparative data on the use of non-attrited alumino silicate, describe the syntheses of zeolites A, X, Y and B. Specifications 841,812, 864,707, 868,846, 909,264, 912,936, 972,831 and U.S.A. 3,008,803 also are referred to.
GB2716762A 1961-07-19 1962-07-16 Process for producing synthetic crystalline zeolites Expired GB1007853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12524961A 1961-07-19 1961-07-19

Publications (1)

Publication Number Publication Date
GB1007853A true GB1007853A (en) 1965-10-22

Family

ID=22418832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2716762A Expired GB1007853A (en) 1961-07-19 1962-07-16 Process for producing synthetic crystalline zeolites

Country Status (1)

Country Link
GB (1) GB1007853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102977A (en) * 1975-11-18 1978-07-25 Mizusawa Kagaku Kogyo Kabushiki Kaisha Process for the preparation of alkali aluminosilicate detergent builder
GB2125390A (en) * 1982-08-16 1984-03-07 Ici Plc Preparation of zeolites

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102977A (en) * 1975-11-18 1978-07-25 Mizusawa Kagaku Kogyo Kabushiki Kaisha Process for the preparation of alkali aluminosilicate detergent builder
US4219535A (en) * 1975-11-18 1980-08-26 Mizusawa Kagaku Kogyo Kabushiki Kaisha Alkali metal aluminosilicate detergent builder
US4238346A (en) * 1975-11-18 1980-12-09 Mizusawa Kagaku Kogyo Kabushiki Kaisha Detergent builders and process for preparation thereof
GB2125390A (en) * 1982-08-16 1984-03-07 Ici Plc Preparation of zeolites

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