CN111018546A - Preparation method of magnesium-calcium sintered powdery resin - Google Patents
Preparation method of magnesium-calcium sintered powdery resin Download PDFInfo
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- CN111018546A CN111018546A CN201911331688.0A CN201911331688A CN111018546A CN 111018546 A CN111018546 A CN 111018546A CN 201911331688 A CN201911331688 A CN 201911331688A CN 111018546 A CN111018546 A CN 111018546A
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- magnesium
- formaldehyde
- zirconium dioxide
- powdery resin
- dimethylnaphthalene
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63472—Condensation polymers of aldehydes or ketones
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G10/00—Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or halogenated aromatic hydrocarbons only
- C08G10/02—Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or halogenated aromatic hydrocarbons only of aldehydes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of adhesives, and discloses a magnesium-calcium sintered powdery resin which comprises the following components in percentage by weight: 40-50% of dimethylbenzene, 10-20% of naphthalene, 10-15% of methylnaphthalene, 5-10% of dimethylnaphthalene, 15-20% of biphenyl, 5-10% of bicyclic aromatic hydrocarbon, 2-6% of formaldehyde and 30-36% of zirconium dioxide. According to the invention, by adding the liquid paraffin and the zirconium dioxide, when the sintering temperature is higher, the ion diffusion speed is increased, the sintering of a sample is effectively promoted, the physical property of a finished product is greatly improved, the amount of free calcium oxide is reduced, and the hydration resistance of the finished product is improved; meanwhile, the preparation is simple and convenient, the production cost is reduced, and the popularization is facilitated.
Description
Technical Field
The invention relates to the field of adhesives, in particular to a preparation method of magnesium-calcium sintered powdery resin.
Background
The magnesia-calcia refractory material has the advantages of stable thermodynamic property, no pollution to molten steel, capability of capturing nonferrous impurities such as Al2O3, S, P and the like in the molten steel, capability of effectively preventing the oxygenation of the molten steel and the like, and rich raw materials, so that the production and the use of magnesia-calcia bricks, particularly high-calcium magnesia-calcia bricks are limited due to easy hydration of free CaO and difficult sintering, therefore, effective measures are required to be taken to promote the sintering of the magnesia-calcia bricks, and the compactness of products is improved.
The existing resin adhesive is added into the magnesia-calcium baked brick, which can not well help the sintering performance, so that the molding strength is low
In order to solve the problems, the application provides a preparation method of magnesium-calcium sintered powdery resin.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a subject, and the invention improves the ion diffusion speed when the sintering temperature is higher by adding the liquid paraffin and the zirconium dioxide, effectively promotes the sintering of a sample, greatly improves the physical properties of a finished product, reduces the amount of free calcium oxide and improves the hydration resistance of the finished product.
(II) technical scheme
In order to solve the problems, the invention provides a magnesium-calcium sintered powdery resin which comprises the following components in percentage by weight: 40-50% of dimethylbenzene, 10-20% of naphthalene, 10-15% of methylnaphthalene, 5-10% of dimethylnaphthalene, 15-20% of biphenyl, 5-10% of bicyclic aromatic hydrocarbon, 2-6% of formaldehyde and 30-36% of zirconium dioxide.
Preferably, the components by weight percentage are as follows: 40% xylene, 10% naphthalene, 10% methylnaphthalene, 5% dimethylnaphthalene, 15% biphenyl, 5% bicyclic aromatic hydrocarbon, 2% formaldehyde and 30% zirconium dioxide.
Preferably, the components by weight percentage are as follows: 50% xylene, 20% naphthalene, 15% methylnaphthalene, 10% dimethylnaphthalene, 20% biphenyl, 10% bicyclic aromatic hydrocarbon, 6% formaldehyde and 36% zirconium dioxide.
Preferably, the components by weight percentage are as follows: 45% xylene, 15% naphthalene, 13% methylnaphthalene, 7% dimethylnaphthalene, 17% biphenyl, 8% bicyclic aromatic hydrocarbon, 4% formaldehyde and 33% zirconium dioxide.
The preparation method comprises the following steps:
s1, reacting aromatic compounds with formaldehyde under the conditions of acid catalysts and liquid paraffin, wherein the reaction comprises condensation reaction of the aromatic compounds and the formaldehyde;
s2, adding a mixed solution obtained by monohydric phenol and organic acid into the reaction solution, heating the mixed solution, preserving heat, and distilling until no fraction is produced to prepare the viscose resin;
s3, fully mixing and stirring the prepared viscose resin and zirconium dioxide powder;
and S4, granulating the mixed and stirred materials.
Preferably, in S1, the excess acid is separated and the excess methanol is distilled.
Preferably, in S2, the reaction solution is heated to 100-130 ℃, kept for 30 minutes, heated to 160-190 ℃, kept for 60 minutes, and then finished when the temperature is raised to 180-230 ℃.
The technical scheme of the invention has the following beneficial technical effects:
the zirconium dioxide is added to the powdery resin, so that air holes generated in the sintering process are reduced, the zirconium dioxide exists in crystal boundaries of magnesium oxide and calcium oxide during firing, solid-phase diffusion is mainly used, the flow activity of diffusion is increased, sintering is promoted, and meanwhile, the preparation is simple and convenient, the production cost is reduced, and the popularization is facilitated.
Drawings
FIG. 1 is a flow chart of the preparation method of the magnesium-calcium sintered powdery resin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings 1 in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a magnesium-calcium sintered powdery resin which comprises the following components in percentage by weight: 40-50% of dimethylbenzene, 10-20% of naphthalene, 10-15% of methylnaphthalene, 5-10% of dimethylnaphthalene, 15-20% of biphenyl, 5-10% of bicyclic aromatic hydrocarbon, 2-6% of formaldehyde and 30-36% of zirconium dioxide.
In an alternative embodiment, the composition comprises, by weight: 40% xylene, 10% naphthalene, 10% methylnaphthalene, 5% dimethylnaphthalene, 15% biphenyl, 5% bicyclic aromatic hydrocarbon, 2% formaldehyde and 30% zirconium dioxide.
In an alternative embodiment, the composition comprises, by weight: 50% xylene, 20% naphthalene, 15% methylnaphthalene, 10% dimethylnaphthalene, 20% biphenyl, 10% bicyclic aromatic hydrocarbon, 6% formaldehyde and 36% zirconium dioxide.
In an alternative embodiment, the composition comprises, by weight: 45% xylene, 15% naphthalene, 13% methylnaphthalene, 7% dimethylnaphthalene, 17% biphenyl, 8% bicyclic aromatic hydrocarbon, 4% formaldehyde and 33% zirconium dioxide.
The preparation method comprises the following steps:
s1, reacting aromatic compounds with formaldehyde under the conditions of acid catalysts and liquid paraffin, wherein the reaction comprises condensation reaction of the aromatic compounds and the formaldehyde;
s2, adding a mixed solution obtained by monohydric phenol and organic acid into the reaction solution, heating the mixed solution, preserving heat, and distilling until no fraction is produced to prepare the viscose resin;
s3, fully mixing and stirring the prepared viscose resin and zirconium dioxide powder;
and S4, granulating the mixed and stirred materials.
In an alternative embodiment, in S1, the excess acid is separated and the excess methanolic is distilled.
In an alternative embodiment, in S2, the reaction solution is heated to 100-130 ℃, kept for 30 minutes, heated to 160-190 ℃, kept for 60 minutes, and then finished when heated to 180-230 ℃.
In the invention, the zirconium dioxide is added to the powdery resin, so that the pores generated in the sintering process are reduced, the zirconium dioxide exists in the crystal boundary of magnesium oxide and calcium oxide during firing, solid-phase diffusion is taken as the main component, the diffusion flow activity is increased, the sintering is promoted, meanwhile, the preparation is simple and convenient, the production cost is reduced, and the popularization is facilitated.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The magnesium-calcium sintered powdery resin is characterized by comprising the following components in percentage by weight: 40-50% of dimethylbenzene, 10-20% of naphthalene, 10-15% of methylnaphthalene, 5-10% of dimethylnaphthalene, 15-20% of biphenyl, 5-10% of bicyclic aromatic hydrocarbon, 2-6% of formaldehyde and 30-36% of zirconium dioxide.
2. The magnesium-calcium sintered powdery resin as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 40% xylene, 10% naphthalene, 10% methylnaphthalene, 5% dimethylnaphthalene, 15% biphenyl, 5% bicyclic aromatic hydrocarbon, 2% formaldehyde and 30% zirconium dioxide.
3. The magnesium-calcium sintered powdery resin as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 50% xylene, 20% naphthalene, 15% methylnaphthalene, 10% dimethylnaphthalene, 20% biphenyl, 10% bicyclic aromatic hydrocarbon, 6% formaldehyde and 36% zirconium dioxide.
4. The magnesium-calcium sintered powdery resin as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 45% xylene, 15% naphthalene, 13% methylnaphthalene, 7% dimethylnaphthalene, 17% biphenyl, 8% bicyclic aromatic hydrocarbon, 4% formaldehyde and 33% zirconium dioxide.
5. The magnesium-calcium sintered powdery resin according to any one of claims 1 to 4, which is prepared by the following specific method:
s1, reacting aromatic compounds with formaldehyde under the conditions of acid catalysts and liquid paraffin, wherein the reaction comprises condensation reaction of the aromatic compounds and the formaldehyde;
s2, adding a mixed solution obtained by monohydric phenol and organic acid into the reaction solution, heating the mixed solution, preserving heat, and distilling until no fraction is produced to prepare the viscose resin;
s3, fully mixing and stirring the prepared viscose resin and zirconium dioxide powder;
and S4, granulating the mixed and stirred materials.
6. The method of claim 5, wherein in S1, the excess acid is separated and the excess methanol is distilled.
7. The method for preparing the magnesium-calcium sintered powdery resin according to claim 1, wherein in S2, the reaction solution is heated to 100-130 ℃, kept for 30 minutes, heated to 160-190 ℃, kept for 60 minutes, and finished when heated to 180-230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331688.0A CN111018546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of magnesium-calcium sintered powdery resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331688.0A CN111018546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of magnesium-calcium sintered powdery resin |
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| CN111018546A true CN111018546A (en) | 2020-04-17 |
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| CN201911331688.0A Pending CN111018546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of magnesium-calcium sintered powdery resin |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628960A (en) * | 2009-08-18 | 2010-01-20 | 柳忠光 | Adhesion-promotion resin and preparation method thereof, and rubber prepared by same |
| CN106699207A (en) * | 2017-01-04 | 2017-05-24 | 武汉科技大学 | Fired magnesia-calcium brick and preparation method thereof |
| CN107285781A (en) * | 2017-06-30 | 2017-10-24 | 长兴泓矿炉料有限公司 | A kind of hydration-resisting magnesite-dolomite refractories and preparation method thereof |
-
2019
- 2019-12-21 CN CN201911331688.0A patent/CN111018546A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628960A (en) * | 2009-08-18 | 2010-01-20 | 柳忠光 | Adhesion-promotion resin and preparation method thereof, and rubber prepared by same |
| CN106699207A (en) * | 2017-01-04 | 2017-05-24 | 武汉科技大学 | Fired magnesia-calcium brick and preparation method thereof |
| CN107285781A (en) * | 2017-06-30 | 2017-10-24 | 长兴泓矿炉料有限公司 | A kind of hydration-resisting magnesite-dolomite refractories and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 蒯超等: "浸蜡工艺对高钙镁钙质耐火材料抗水化性的影响", 《耐火材料》 * |
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