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Composite material containing mordenite and porous metal and preparing process thereof

A technology of porous metals and composite materials, applied in chemical instruments and methods, other chemical processes, molecular sieve catalysts, etc., can solve the problem of low firmness between zeolite and carrier

Inactive Publication Date: 2003-06-04
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the purposes of the present invention is to overcome the disadvantages of the prior art that zeolite is prone to framework dealumination and the combination between zeolite and carrier is not high, and to provide a new zeolite that is not prone to framework dealumination and has a bond between zeolite and carrier. A composite material of mordenite and porous metal with higher firmness; the second purpose is to provide a preparation method of the composite material

Method used

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  • Composite material containing mordenite and porous metal and preparing process thereof
  • Composite material containing mordenite and porous metal and preparing process thereof
  • Composite material containing mordenite and porous metal and preparing process thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1～5

[0046] The following examples illustrate the preparation of porous metal supports for catalysts provided by the present invention.

[0047] Take by weighing 2.0 kilograms of iron (containing 99.99 percent by weight of iron, produced by Capital Iron and Steel Company) or copper (containing 99.99 percent by weight of copper, produced by Luoyang Copper Works), melt them in an intermediate frequency furnace, and add 2.0 kilograms of aluminum (containing 99.99 percent by weight of aluminum) respectively. , produced by Zhengzhou Aluminum Works), were kept at 1200 ° C for 10 minutes, and naturally cooled to room temperature to obtain large pieces of iron-aluminum or copper-aluminum alloy. The obtained iron-aluminum and copper-aluminum alloys were respectively pulverized into particles with a diameter of about 0.01 cm.

[0048] Take respectively 200 grams of nickel-aluminum alloy particles (containing 50% by weight of nickel and aluminum, about 0.01 cm in particle diameter, produced b...

example 6～8

[0053] The following examples illustrate the composite materials provided by the present invention and their preparation.

[0054] Water glass, tetraethylammonium hydroxide (TEA) and deionized water press water glass (SiO 2 The content is 0.00416mol / ml, Na2 O content is 0.00129 mol / ml): TEA aqueous solution (TEA content is 0.683 g / liter): water is mixed in a volume ratio of 1:0.37:4.3 to form a zeolite synthetic liquid. The molar ratio composition of the zeolite synthesis liquid is 31Na 2 O·15TEA·100SiO 2 ·7000H 2 O. Weigh 10 grams each of the porous metal carriers NA1, FA1 and CA1 prepared in Examples 1-3, add them into the autoclave, and add 300 ml of the zeolite synthesis solution into the autoclave. Under airtight conditions, crystallize at 180°C for 30 hours, filter, wash the solid product to neutrality, dry, and roast at 550°C for 10 hours to remove the template agent TEA, and prepare mordenite and porous metal composite materials F1, F2 and F3. Table 6 provides th...

example 9

[0059] This example illustrates the composite material provided by the invention and its preparation.

[0060] The composite material of mordenite and porous metal was prepared according to the method of Example 6, except that the porous carrier used was NA3, the crystallization temperature was 200° C., and the crystallization time was 20 hours, and the composite material F4 was obtained. The silicon-aluminum ratio in the synthesis system and the composition of F4 are listed in Table 7. F4 has X-ray diffraction lines as shown in Table 1.

[0061] example

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Abstract

A composite material contains porous metal carrier and mordenite which is directly crystallized on said carrier. Said porous metal carrier contains at least one of porous Ni-Al, Fe-Al or Cu-Al alloys. Its preparing process includes contact of porous metal carrier with synthetic liquid of zeolite, and crystallizing the synthetic liquid under the condition of synthesizing mordenite. Said composite material features firm combination of carrier with mordenite, and higher thermal and hydrothermal stability of mordenite.

Description

Technical field: [0001] The invention relates to a composite material containing aluminosilicate zeolite and porous metal and a preparation method thereof, more particularly to a composite material containing mordenite and porous metal and a preparation method thereof. Background technique: [0002] In situ crystallization of aluminosilicate zeolites on porous supports to prepare zeolite-containing composites has become a very active research field. Crystallization of zeolite on different porous supports under different conditions can prepare zeolite-containing composite materials with different properties and applications. There have been many reports in this regard. As disclosed in US3,244,643, the method of loading aluminosilicate on a solid cage carrier with a certain porosity and effective pore diameter, and the method of loading zeolite on silicon oxide and / or aluminum oxide disclosed in US3,730,910 method, the zeolite-asbestos composite material disclosed in US4,511,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/02B01J20/18B01J29/04B01J29/06
Inventor 宗保宁卢立军舒兴田
Owner CHINA PETROCHEMICAL CORP