GB873883A - Process for the preparation of artificial adsorbent zeolites - Google Patents

Process for the preparation of artificial adsorbent zeolites

Info

Publication number
GB873883A
GB873883A GB19297/59A GB1929759A GB873883A GB 873883 A GB873883 A GB 873883A GB 19297/59 A GB19297/59 A GB 19297/59A GB 1929759 A GB1929759 A GB 1929759A GB 873883 A GB873883 A GB 873883A
Authority
GB
United Kingdom
Prior art keywords
aluminate
silico
calcium
sodium
activated
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
GB19297/59A
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.)
Carbonisation et Charbons Actifs CECA SA
Original Assignee
Carbonisation et Charbons Actifs CECA SA
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 Carbonisation et Charbons Actifs CECA SA filed Critical Carbonisation et Charbons Actifs CECA SA
Publication of GB873883A publication Critical patent/GB873883A/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
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/14—Type A
    • C01B39/18—Type A from a reaction mixture containing at least one aluminium silicate or aluminosilicate of a clay type, e.g. kaolin or metakaolin or its exotherm modification or allophane
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Artificial adsorbent zeolites are prepared by calcining a natural hydrated aluminium silicate to remove the majority of the water of hydration without modifying its physical structure, pulverizing it and then reacting it with an alkali metal or p alkaline earth metal hydroxide in aqueous medium at 70 DEG to 103 DEG C. When an alkali metal silico-aluminate is prepared it may be converted to another silico-aluminate by base-exchange. In examples kaolin is calcined at 700 DEG C., ground, and heated with 1 N to 4 N sodium hydroxide solution at 80 DEG to 95 DEG C. for 8 hours to obtain sodium silico-aluminate which is heated at 450 DEG C. to obtain material having pore diameters of 4 to 4.5 ; the sodium silico-aluminate is reacted with calcium nitrate solution to obtain calcium silico-aluminate of pore diameter about 5 , which is activated by heating at 450 DEG C.; the calcium silico-aluminate is mixed with calcium bentonite, carboxymethyl cellulose and water, to form a mass which is extruded into rods which are dried and activated at 450 DEG C.
GB19297/59A 1958-06-06 1959-06-05 Process for the preparation of artificial adsorbent zeolites Expired GB873883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873883X 1958-06-06

Publications (1)

Publication Number Publication Date
GB873883A true GB873883A (en) 1961-08-02

Family

ID=9359498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19297/59A Expired GB873883A (en) 1958-06-06 1959-06-05 Process for the preparation of artificial adsorbent zeolites

Country Status (1)

Country Link
GB (1) GB873883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6025296A (en) * 1993-05-28 2000-02-15 Mazda Motor Corporation Process for production of catalyst for exhaust gas cleaning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6025296A (en) * 1993-05-28 2000-02-15 Mazda Motor Corporation Process for production of catalyst for exhaust gas cleaning

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