Synthesis of zeolite EU-2

• US 4,741,891 A
• Filed: 10/15/1986
• Issued: 05/03/1988
• Est. Priority Date: 06/12/1980
• Status: Expired due to Fees

• Current Assignee: Imperial Chemical Industries PLC (IMPERIAL CHEMICAL INDUSTRIES)
• Original Assignee: Imperial Chemical Industries PLC (IMPERIAL CHEMICAL INDUSTRIES)
• Inventors: Casci, John L., Lowe, Barrie M., Lowe, Thomas V.
• Primary Examiner(s): Doll, John
• Assistant Examiner(s): Leeds, Jackson
• Application Number:
  US06/919,577
• Time in Patent Office: 566 Days
• Field of Search: 423/277, 423/326, 423/328, 423/328 C, 423/328 T, 423/329 T, 502/77, 502/202
• US Class Current: 423/708
• CPC Class Codes: B01J 29/70 of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
• CPC Class Codes: B01J 31/0239 Quaternary ammonium compounds
• CPC Class Codes: B01J 31/0254 on mineral substrates
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C01B 33/2884 the aluminium or the silicon in the network being partly replaced
• CPC Class Codes: C01B 35/1009 having molecular-sieve properties
• CPC Class Codes: C01B 37/02 Crystalline silica-polymorphs, e.g. silicalites dealuminated aluminosilicate zeolites
• CPC Class Codes: C01B 39/48 using at least one organic template directing agent
• CPC Class Codes: C01G 17/006 Compounds containing, besides germanium, two or more other elements, with the exception of oxygen or hydrogen
• CPC Class Codes: C01G 49/009 Compounds containing, besides iron, two or more other elements, with the exception of oxygen or hydrogen
• CPC Class Codes: C01P 2002/72 by d-values or two theta-values, e.g. as X-ray diagram
• CPC Class Codes: C01P 2004/61 Micrometer sized, i.e. from 1-100 micrometer
• CPC Class Codes: C01P 2004/62 Submicrometer sized, i.e. from 0.1-1 micrometer
• CPC Class Codes: C01P 2004/64 Nanometer sized, i.e. from 1-100 nanometer
• CPC Class Codes: C07C 1/20 starting from organic compounds containing only oxygen atoms as heteroatoms
• CPC Class Codes: C07C 2529/70 of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65

Abstract

Zeolite EU-2 having a molar composition expressed by the formula:

0.5 to 1.5 R₂ O:Y₂ O₃ : at least 70 XO₂ :0 to 100 H₂ O

wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminium, iron, gallium or boron, and H₂ O is water of hydration additional to water notionally present when R is H, and having an X-ray pattern substantially as set out in Table 1 is prepared from a reaction mixture containing XO₂ (preferably silica), Y₂ O₃ (preferably alumina) and a dicationic alkylated polymethylene diamine. The zeolite is useful in catalytic processes, especially for the conversion of methanol to hydrocarbons.

Claims

1. A method of making zeolite EU-2 having a molar composition expressed by the formula:

0.5 to 1.5R₂ O;

Y₂ O₃ ;

at least 70XO₂ ;

0 to 100H₂ O

wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminum, iron, gallium or boron, and H₂ O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern substantially as set out in Table 1, which method comprises reacting an aqueous mixture comprising at least one oxide XO₂, at least one oxide Y₂ O₃ and at least one alkylated derivative of a polymethylene α

-ω

diamine having the formula;

##STR2## wherein n is in the range from 3 to 12, R₁ to R₆ are each methyl, the mixture having the molar composition;

space="preserve" listing-type="tabular">______________________________________ XO.sub.2 /Y.sub.2 O.sub.3 at least 70 OH.sup.- /XO.sub.2 0.1 to 6.0 (M.sup.+ + Q)/Y.sub.2 O.sub.3 0.5 to 100 Q/(M.sup.+ + Q) 0.1 to 1.0 H.sub.2 O/XO.sub.2 1 to 100 ______________________________________

where X is silicon and/or germanium, Y is one or more of aluminum, iron, gallium, boron, M is an alkali metal or ammonium and Q is the aforesaid alkylated derivative of a polymethylene diamine, or a precursor thereof.

2. A method according to claim 1 wherein the XO₂ /Y₂ O₃ molar ratio is at least 150.

3. A method according to claim 1 or claim 2 wherein the OH^- /XO₂ ratio is in the range 0.1 to 1.0.

4. A method according to claim 1 wherein the alkylated hexamethylene diamine is an N,N,N,N¹,N¹,N¹ -hexamethyl-1,6-hexamethylene diammonium salt.