CN1814567A

CN1814567A - Cordierite base BSX low-expansion composite new-material honeycomb ceramics

Info

Publication number: CN1814567A
Application number: CN 200510004848
Authority: CN
Inventors: 翁雄伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-02
Filing date: 2005-02-02
Publication date: 2006-08-09

Abstract

The invention relates to a cordierite BSX low expanding compound new material--beehive ceramic. It is compounded by cordierite basal and BSX, and taking beehive ceramic manufacture technology. The expansion coefficient is lower than 0.8*10<SUP>-6</SUP> degree centigrade <SUP>-1</SUP>, and hole density is over 800 holes/square inch, the hole wall thickness is 0.08-0.1mm, and compressive strength is 11MPa, side pressure is 6MPa. It could satisfy the high technology request of catalyst carrier for kinds of organic purifying exhaust gas.

Description

Cordierite base BSX low-expansion composite new-material honeycomb ceramics

Technical field

The invention belongs to and can be used as the ceramic honey comb that various organic waste-gas purifications are used, i.e. support of the catalyst.

Background technology

Quickening and rapid economic development along with contemporary Chinese civilization progress and modern industrialization process, also brought simultaneously the pollution more and more serious of various waste gas to atmosphere, therefore, the support of the catalyst that recent two decades comes various organic waste-gas purifications to use, be that the ceramic honey comb product arises at the historic moment, but can satisfy the ceramic honey comb that the high performance catalyst carrier technique requires, also exist on the performance and technical bigger difference, for example, thermal expansivity rests on 1.0 * 10 basically ^-6℃ ^-1More than, below density 400 holes, more than the thick 0.16-0.2 millimeter of hole wall, can not satisfy the demand of support of the catalyst per square inch.

Summary of the invention

Task of the present invention is: developed the catalyzer novel material carrier that a kind of hi-tech, high-caliber waste-gas cleaning are used, its low bulk technical indicator is 0.8 * 10 ^-6℃ ^-1Below, porosity is for density is more than 800 holes per square inch, and below the thick 0.08-0.1 millimeter of hole wall, the ultimate compression strength malleation is 11MPa, the novel material ceramic honey comb about side pressure 6MPa.

Embodiment

The present invention realizes with following way:

1. content 45%-50% silicon oxide, 28%-35% aluminum oxide, 10%-15% magnesium oxide and other mineralizer, adopt the ceramic powder production technique to manufacture the iolite-base ceramic, the about 600-2000 order of micro powder granule degree.

2. next 9%-13% barium oxide, 30%-40% zirconium white, 20%-30% sodium oxide, 20%-25% Vanadium Pentoxide in FLAKES, 1%-2% niobium oxides, 1%-2% nickel oxide, 1%-2% silicon oxide, adopt the ceramic powder production technique to manufacture the ceramic that is named as BSX, the about 600-2000 order of its micro powder granule degree.

3. afterwards,, mix by a certain percentage, adopt the compound cordierite base BSX low-expansion composite new-material honeycomb ceramics that manufactures of ceramic honey comb production technique above cordierite ceramic micro mist and BSX ceramic---be the novel material carrier of catalyzer.

4. analyzing the major cause that matrix material ceramic honey comb product of the present invention can have so low thermal expansivity is:

Two kinds of ceramics of iolite-base and BSX all belong to low-expansion material, and their further compound performance performance advantage separately makes swelling internal stress between crystal produce interact and offsets, and finally must get better low bulk micro mist novel material.

Claims

1. cordierite base BSX low-expansion composite new-material honeycomb ceramics, it is characterized in that, the 45%-50% silicon oxide, the 28%-35% aluminum oxide, 10%-15% magnesium oxide and other mineralizer, adopt the ceramics powder production technique to manufacture the iolite-base ceramic, again 9%-13% barium oxide, the 30%-40% zirconium white, the 20%-30% sodium oxide, the 20%-25% Vanadium Pentoxide in FLAKES, the 1%-2% niobium oxides, the 1%-2% nickel oxide, the 1%-2% silicon oxide, adopt the ceramics powder production technique to manufacture the ceramic that is named as BSX, more than the granularity of two kinds of micro mists be the 600-2000 order.

2. cordierite base BSX low-expansion composite new-material honeycomb ceramics according to claim 1, it is characterized in that, iolite-base and two kinds of ceramics of BSX are mixed according to a certain percentage, adopt the compound cordierite base BSX low-expansion composite new-material honeycomb ceramics that manufactures of ceramic honey comb production technique, i.e. support of the catalyst.

3. according to claim 1 and 2 described cordierite base BSX low-expansion composite new-material honeycomb ceramics, it is characterized in that it has following outstanding technical feature, promptly thermal expansivity should be lower than 0.8 * 10 ^-6℃ ^-1, single honeycomb cell densities range is 800 holes per square inch, pore wall thickness 0.08-0.1 millimeter, and the ultimate compression strength malleation is the high-performance novel material ceramic honey comb about 11MPa.