JPH11199342A - Production of expanded ceramics - Google Patents

Production of expanded ceramics

Info

Publication number
JPH11199342A
JPH11199342A JP120498A JP120498A JPH11199342A JP H11199342 A JPH11199342 A JP H11199342A JP 120498 A JP120498 A JP 120498A JP 120498 A JP120498 A JP 120498A JP H11199342 A JPH11199342 A JP H11199342A
Authority
JP
Japan
Prior art keywords
attapulgite
dolomite
waste
glass
glass waste
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.)
Pending
Application number
JP120498A
Other languages
Japanese (ja)
Inventor
Masanori Matsubara
正典 松原
Koji Orito
浩二 折戸
Yoshiro Asai
吉郎 浅井
Hiroo Takashima
廣夫 高嶋
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.)
SHINKO YOGYO KK
Original Assignee
SHINKO YOGYO KK
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 SHINKO YOGYO KK filed Critical SHINKO YOGYO KK
Priority to JP120498A priority Critical patent/JPH11199342A/en
Publication of JPH11199342A publication Critical patent/JPH11199342A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • C04B14/102—Attapulgite clay

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

PROBLEM TO BE SOLVED: To facilitate the setting of a baking temperature and perform the quality control by forming a body prepared by finely pulverizing a glass waste which is a waste and a natural mineral attapulgite into a prescribed shape and baking the formed product at a temperature for converting the glass waste into a melt and emitting a decomposition gas of the attapulgite. SOLUTION: An attapulgite produced from Chiangsu Province in China is preferably used as the attalpulgite and the attapulgite includes two compositonally different types of usual attapulgite and a dolomite attapulgite containing a large amount of a dolomite component. The dolomite contained therein is a solid solution form and a temperature for stably emitting gaseous carbon dioxide by thermal decomposition is 630-820 deg.C. A flat glass waste having low consistency is preferred as the glass refuse; however, a bottle glass waste can be regulated by adding an additive thereto. The compounding of 75-95 wt.% glass waste with 5-25 wt.% attapulgite (10 wt.% thereof is replaced with the dolomite attapulgite at the time of expanding and reinforcing) is preferred. The resultant formed product is then baked at 630-900 deg.C.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は発泡セラミックスの
製造方法に関する。[0001] The present invention relates to a method for producing foamed ceramics.

【０００２】[0002]

【従来の技術】ガラス屑を利用した発泡セラミックスの
製法として、特開平９−２５１８１号に主成分として白
土，粘土，クレー等、発泡材としてドロマイト，硝酸ソ
ーダ，炭化珪素，ベントナイト等を使用したもの、特開
平７−１６５４３７号に造粒結合材としてベントナイ
ト，粘土等、発泡材としてドロマイト，硝酸ソーダ，炭
化珪素等、造粒バインダとしてＣＭＣ，ＰＶＡ等を使用
したものが開示されている。このようにガラス屑に成形
助材である粘土等、発泡材としてドロマイト，硝酸ソー
ダ等、そして必要に応じて有機バインダが使用されてい
る。2. Description of the Related Art Japanese Patent Application Laid-Open No. 9-25181 discloses a method for producing foamed ceramics utilizing glass waste, using clay, clay, clay, etc. as main components and dolomite, sodium nitrate, silicon carbide, bentonite, etc. as foaming materials. Japanese Patent Application Laid-Open No. Hei 7-165439 discloses a method using bentonite, clay, or the like as a granulating binder, dolomite, sodium nitrate, silicon carbide, or the like as a foaming material, and CMC, PVA, or the like as a granulating binder. As described above, clay or the like as a molding aid, dolomite, sodium nitrate, or the like as a foaming material, and an organic binder as needed are used for glass waste.

【０００３】[0003]

【発明が解決しようとする課題】従来の技術は、ガラス
屑にドロマイトを発泡材として、成形助材に粘土などが
用いられている。しかし、成形可能となるまで粘土を加
えると発泡効果は極端に低下する。また、発泡材として
加えるドロマイトにもマグネサイトとカルサイトの固溶
体と混合体があり、その両者では炭酸ガスが分解発生す
る温度がそれぞれに異なる。このことは発泡セラミック
スを製造する場合に焼成温度の設定と品質の管理を困難
なものとする。さらに、ガラス屑の粘度が発泡の程度に
大きい影響を与えている。In the prior art, dolomite is used as glass foam as a foaming material, and clay or the like is used as a molding aid. However, if the clay is added until it can be molded, the foaming effect is extremely reduced. Dolomite added as a foam also has a solid solution and a mixture of magnesite and calcite, and both have different temperatures at which carbon dioxide is decomposed. This makes it difficult to set the firing temperature and control the quality when manufacturing foamed ceramics. Furthermore, the viscosity of the glass dust has a great influence on the degree of foaming.

【０００４】そこで本発明は、これらの問題を解決する
発泡セラミックスの製造方法を提供するものである。Accordingly, the present invention provides a method for producing a foamed ceramic which solves these problems.

【０００５】[0005]

【発明を解決するための手段】本発明は発泡セラミック
スを低温焼成にて製造するためにガラス屑に可塑性材と
発泡材の両方の機能を持ち合わせたアタパルジャイトを
主原料として製造することを要旨とするものである。SUMMARY OF THE INVENTION In order to produce foamed ceramics by firing at a low temperature, the present invention has as its main object the production of glass swarf using attapulgite having both functions of a plastic material and a foaming material as a main raw material. Things.

【０００６】アタパルジャイトは米国ジョージア州や中
国江蘇省で産出されるが、本発明は中国江蘇省産のもの
を用いた。それには主に品質の異なる２種類があって、
通常のアタパルジャイトとドロマイトアタパルジャイト
と呼ばれているものである。その化学成分とゼーゲル式
及び鉱物組成を表１に示す。Attapulgite is produced in Georgia, USA and Jiangsu Province, China, but the present invention uses a product from Jiangsu Province, China. There are two main types with different quality,
It is called normal attapulgite and dolomite attapulgite. Table 1 shows the chemical components, the Zegel formula and the mineral composition.

【０００７】[0007]

【表１】 [Table 1]

【０００８】また図１，図２にそのＸ線回折パターンを
示す。この様に両鉱物ともアタパルジャイトが主鉱物
で、それにドロマイト，粘土，長石，珪石を含有してい
るものである。アタパルジャイトは、それ自身でも可塑
性を持ち、また用いた鉱物は表１のように可塑材として
の粘土、媒溶材としての長石、そして構造材としての珪
石も併せて含有しているので、この種の製品を作るため
の原料としては好都合のものといえるが、特に注目され
ることはドロマイトを多量に含有していることである。FIGS. 1 and 2 show the X-ray diffraction patterns. As described above, both minerals are mainly attapulgite and contain dolomite, clay, feldspar and silica stone. Attapulgite itself has plasticity, and the minerals used also contain clay as a plasticizer, feldspar as a solvent, and silica as a structural material, as shown in Table 1. Although it can be said to be a convenient raw material for producing a product, it is particularly noteworthy that it contains a large amount of dolomite.

【０００９】又、表１及び図１，図２の比較から分かる
ように構成成分は同じであるが、アタパルジャイトより
ドロマイトアタパルジャイトの方がドロマイトの含有量
は多い。Further, as can be seen from the comparison between Table 1 and FIGS. 1 and 2, the components are the same, but the content of dolomite is larger in dolomite attapulgite than in attapulgite.

【００１０】これらのアタパルジャイトに含まれている
ドロマイトは、固溶体形であって図３，図４の下段のＤ
ＴＡパターンに示すように熱分解して炭酸ガスを発生す
る温度は、６３０℃〜８２０℃の間にあり、安定したガ
スの発生が可能である。このことは図の上段の重量変化
のパターンを見ても分かる。図３，図４より、ドロマイ
トアタパルジャイトの重量変化は３３％（通常アタパル
ジャイトは１０％）有り、又６３０〜８２０℃の吸熱ピ
ークも大きく、温度も高いのでドロマイトの含有量の多
いことが明らかである。融液相を形成する材質は、それ
以下の温度で粘稠度が低くなることが必要であって、そ
れにはガラス屑が最も適している。特にドロマイトの熱
分解温度以下で粘稠度の低くなる産業廃棄物の板ガラス
がよい。一般廃棄物としての瓶ガラス屑は、やや粘稠度
が高く発泡効率が若干低くなる。しかし、粘稠度は添加
物を加えることにより調節可能である。表２に産業廃棄
物としての板ガラスと一般廃棄物としての瓶ガラスの化
学分析値とゼーゲル式及び軟化温度を示す。The dolomite contained in these attapulgites is in the form of a solid solution and is shown in FIG.
As shown in the TA pattern, the temperature at which carbon dioxide is generated by thermal decomposition is between 630 ° C. and 820 ° C., and stable gas generation is possible. This can be understood from the weight change pattern in the upper part of the figure. 3 and 4, it is clear that the weight change of the dolomite attapulgite is 33% (normally attapulgite is 10%), the endothermic peak at 630 to 820 ° C. is large, and the dolomite content is high since the temperature is high. . The material forming the melt phase must have a low viscosity at a temperature lower than that, and glass scrap is most suitable for this. In particular, a sheet glass of industrial waste having a low viscosity below the thermal decomposition temperature of dolomite is preferred. Bottle glass chips as general waste have a slightly higher consistency and a slightly lower foaming efficiency. However, the consistency can be adjusted by adding additives. Table 2 shows the chemical analysis values, the Zegel equation, and the softening temperature of the plate glass as industrial waste and the bottle glass as general waste.

【００１１】[0011]

【表２】 [Table 2]

【００１２】次に発泡セラミックスの製造方法について
説明する。産業廃棄物や一般廃棄物としてのガラス屑を
融液相生成原料として、それに可塑材と発泡材を兼ね合
わせた天然鉱物のアタパルジャイトを加えて粉砕後、所
定の形に成形し、６３０〜９００℃の温度で焼成すれば
粘稠度の低下した融液相が発生した分解ガスである炭酸
ガスによって体積膨張を起こし発泡するが、アタパルジ
ャイトの構成鉱物成分が骨格を形成して形を保つことが
できる。６３０℃より低い温度では発泡が不可能であ
り、９００℃以上では形を保つことができない。この様
にして嵩比重が０．４〜１．４（通常のセラミックスの
１／５〜１／２）の発泡セラミックスが製造される。Next, a method for producing a foamed ceramic will be described. Glass waste as industrial waste or general waste is used as a raw material for producing a melt phase, and attapulgite, a natural mineral that combines a plasticizer and a foaming material, is added and pulverized, and then molded into a predetermined shape. When calcined at a temperature of, the melt phase with reduced viscosity causes volume expansion due to the generated decomposition gas, carbon dioxide, and foams, but the constituent mineral components of attapulgite can form a skeleton and maintain its shape . Foaming is impossible at a temperature lower than 630 ° C, and the shape cannot be maintained at a temperature of 900 ° C or higher. In this way, foamed ceramics having a bulk specific gravity of 0.4 to 1.4 (１ ／ to の of ordinary ceramics) are produced.

【００１３】また、配合は、ガラス屑を７５〜９５重量
％、アタパルジャイトを５〜２５重量％とすることが好
ましい。ガラス屑が７５％より少なく、アタパルジャイ
トが２５％より多くなると発泡状態が悪くなり、ガラス
屑が９５％より多く、アタパルジャイトが５％より少な
い場合は可塑性が落ち、所定の形に成形ができない。更
に、発泡の補強が必要なときはドロマイトアタパルジャ
イトを添加することが良く、例えば上記の配合において
１０重量％以下のアタパルジャイトをドロマイトアタパ
ルジャイトで置換することが好ましい。[0013] In addition, it is preferable to mix 75 to 95% by weight of glass waste and 5 to 25% by weight of attapulgite. If the amount of glass chips is less than 75% and the amount of attapulgite is more than 25%, the foaming state deteriorates. If the amount of glass chips is more than 95% and the amount of attapulgite is less than 5%, the plasticity decreases, and molding into a predetermined shape cannot be performed. Further, when foam reinforcement is required, dolomite attapulgite is preferably added. For example, it is preferable to replace 10% by weight or less of attapulgite with dolomite attapulgite in the above composition.

【００１４】また、ガラス屑の粘度を調節するときには
ペタライトを添加することが良く、例えば０．５〜５重
量％添加することが好ましい。When adjusting the viscosity of the glass waste, it is preferable to add petalite, for example, it is preferable to add 0.5 to 5% by weight.

【００１５】[0015]

【実施例】〔実施例１〕表２の産業廃棄物の板ガラス屑
９１．５重量％と表１の通常アタパルジャイト８．５重
量％を混合し、湿式粉砕して脱水し坏土とする。乾燥
し、粉状にしてセラミックタイルを製造する要領で成形
する。焼成は昇温速度１５０℃／ｈｒで６９５℃に達し
たとき、３０分間その温度を保持して放冷した。その製
品は嵩比重が０．７、寸法伸張率は１．５倍、体積膨張
では３．４倍になる。しかも単独気泡を多く含んでいる
ので水に浮く。[Example 1] 91.5% by weight of glass waste of industrial waste shown in Table 2 and 8.5% by weight of normal attapulgite shown in Table 1 were mixed, wet-pulverized and dewatered to obtain clay. It is dried, powdered, and shaped in the manner of producing ceramic tiles. In the firing, when the temperature reached 695 ° C. at a rate of 150 ° C./hr, the temperature was maintained for 30 minutes to cool. The product has a bulk specific gravity of 0.7, a dimensional elongation of 1.5 times, and a volume expansion of 3.4 times. Moreover, since it contains many single bubbles, it floats on water.

【００１６】この坏土のゼーゲル式は、 ０．３９６ Ｋ2 Ｏ ８．７８９ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・５４．５３４ ＳｉＯ2 ５．０５１ ＭｇＯ ６．７４７ ＣａＯThe Seegel formula of the clay is 0.396 K 2 O 8.789 Na 2 O.Al 2 O 3 .54.534 SiO 2 5.051 MgO 6.747 CaO

【００１７】〔実施例２〕表２の一般廃棄物の瓶ガラス
屑９１．５重量％と通常アタパルジャイト８．５重量％
を実施例１と同様な方法で製造する。焼成温度は７５０
℃とする。この調合では発泡はわずかであった。この時
の製品の嵩比重は１．４、寸法伸張率は１．２倍、体積
膨張では１．７倍となる。用いた瓶ガラス屑は表２のよ
うに板ガラスに比べＭｇＯが少ないため粘稠度が高く発
泡膨張性は小さい。Example 2 91.5% by weight of glass waste of general waste and 8.5% by weight of normal attapulgite in Table 2
Is manufactured in the same manner as in Example 1. Firing temperature is 750
° C. Foaming was slight in this formulation. At this time, the bulk specific gravity of the product is 1.4, the dimensional elongation is 1.2 times, and the volume expansion is 1.7 times. As shown in Table 2, the used bottle glass scrap contains less MgO than the plate glass, and therefore has a high consistency and a low foaming expansion property.

【００１８】この時のゼーゲル式は、 ０．３７８ Ｋ2 Ｏ ６．６６０ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・４２．１７７ ＳｉＯ2 １．３１５ ＭｇＯ ６．３２６ ＣａＯThe Zegel formula at this time is: 0.378 K 2 O 6.660 Na 2 O.Al 2 O 3 .42.177 SiO 2 1.315 MgO 6.326 CaO

【００１９】〔実施例３〕実施例２では、条件が悪く発
泡が少ないので、瓶ガラス９１．５重量％と通常アタパ
ルジャイト８．５重量％に、粘稠度を下げるためにペタ
ライトを外割で２％添加して、実施例１と同様な方法で
製造する。焼成温度は６９０℃とする。この時の嵩比重
は０．７、寸法伸張率は１．５倍、体積膨張は３．４倍
となり、非常によく発泡するようになる。Example 3 In Example 2, the conditions were poor and there was little foaming. Therefore, petalite was divided into 91.5% by weight of bottle glass and 8.5% by weight of normal attapulgite to reduce the consistency. It is manufactured in the same manner as in Example 1 with the addition of 2%. The firing temperature is 690 ° C. At this time, the bulk specific gravity is 0.7, the dimensional elongation is 1.5 times, and the volume expansion is 3.4 times, so that the foaming becomes very good.

【００２０】〔実施例４〕表２の産業廃棄物の板ガラス
屑８７．３重量％と表１の通常アタパルジャイト１２．
７重量％を実施例１と同様な方法で製造する。焼成温度
は８００℃とした。その製品は嵩比重が０．７、寸法伸
張率は１．５倍、体積膨張では３．４倍となる。Example 4 87.3% by weight of glass waste of industrial waste shown in Table 2 and ordinary attapulgite shown in Table 1
7% by weight is produced in the same way as in Example 1. The firing temperature was 800 ° C. The product has a bulk specific gravity of 0.7, a dimensional elongation of 1.5 times, and a volume expansion of 3.4 times.

【００２１】坏土のゼーゲル式は、 ０．３６０ Ｋ2 Ｏ ７．３７６ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・４７．３３４ ＳｉＯ2 ４．６５４ ＭｇＯ ５．８６１ ＣａＯThe Seegel formula of the clay is 0.360 K 2 O 7.376 Na 2 O.Al 2 O 3 .47.334 SiO 2 4.654 MgO 5.861 CaO

【００２２】〔実施例５〕表２の産業廃棄物の板ガラス
屑９１．５重量％と表１のドロマイトアタパルジャイト
を８．５重量％を実施例１と同様の方法で製造する。焼
成温度は６９５℃とした。この場合成形性は実施例より
若干低いが、発泡性は高いので焼成温度が同じでも嵩比
重が０．５、寸法伸張率は１．７倍、体積膨張は４．９
倍となる。Example 5 91.5% by weight of glass waste of industrial waste shown in Table 2 and 8.5% by weight of dolomite attapulgite shown in Table 1 were produced in the same manner as in Example 1. The firing temperature was 695 ° C. In this case, the moldability is slightly lower than that of the example, but the foaming property is high, so that the bulk specific gravity is 0.5, the dimensional elongation is 1.7 times, and the volume expansion is 4.9 even at the same sintering temperature.
Double.

【００２３】この坏土のゼーゲル式は、 ０．４５２ Ｋ2 Ｏ １１．１６５ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・６６．５８５ ＳｉＯ2 ７．４５０ ＭｇＯ ９．７５３ ＣａＯThe Seegel formula of the kneaded material is: 0.452 K 2 O 11.165 Na 2 O.Al 2 O 3 .66.585 SiO 2 7.450 MgO 9.753 CaO

【００２４】〔実施例６〕表２の一般廃棄物の瓶ガラス
屑９１．５重量％と表１のドロマイトアタパルジャイト
８．５重量％を実施例１と同様な方法で製造する。焼成
温度は７５０℃とする。この製品の嵩比重は０．７、寸
法伸張率は１．５倍、体積膨張は３．４倍となる。Example 6 91.5% by weight of glass waste of general waste in Table 2 and 8.5% by weight of dolomite attapulgite in Table 1 are produced in the same manner as in Example 1. The firing temperature is 750 ° C. The bulk specific gravity of this product is 0.7, the dimensional elongation is 1.5 times, and the volume expansion is 3.4 times.

【００２５】この坏土のゼーゲル式は、 ０．４２２ Ｋ2 Ｏ ８．１５３ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・４９．７２３ ＳｉＯ2 ２．５０１ ＭｇＯ ８．７１３ ＣａＯThe Seegel formula of the kneaded material is: 0.422 K 2 O 8.153 Na 2 O.Al 2 O 3 .49.723 SiO 2 2.501 MgO 8.713 CaO

【００２６】〔実施例７〕表２の産業廃棄物の板ガラス
屑７８．５重量％と表１の通常アタパルジャイト２１．
５重％を実施例１と同様な方法で製造する。焼成温度は
８５０℃とする。アタパルジャイトの混合量が多いた
め、成形性は非常に向上するが、焼成温度を高くしなけ
ればならない。この製品の嵩比重は１．３、寸法伸張率
は１．２倍、体積膨張は１．７倍となる。Example 7 78.5% by weight of glass waste of industrial waste shown in Table 2 and ordinary attapulgite 21.
5% by weight is produced in the same manner as in Example 1. The firing temperature is 850 ° C. Since the mixing amount of attapulgite is large, the moldability is greatly improved, but the firing temperature must be increased. The bulk specific gravity of this product is 1.3, the dimensional elongation is 1.2 times, and the volume expansion is 1.7 times.

【００２７】この坏土のゼーゲル式は、 ０．３０６ Ｋ2 Ｏ ５．３０３ Ｎａ2 Ｏ ・Ａｌ2 Ｏ3 ・３６．７７３ ＳｉＯ2 ４．０７２ ＭｇＯ ４．５６０ ＣａＯThe Seegel formula of this clay is 0.306 K 2 O 5.303 Na 2 O.Al 2 O 3 .36.773 SiO 2 4.072 MgO 4.560 CaO

【００２８】[0028]

【発明の効果】以上のようであるから本発明によれば、
粘稠度の低下した融液相が発生した分解ガスによって体
積膨張を起こして発泡し、アタパルジャイトの構成鉱物
成分が骨格を形成して形を保ち、嵩比重が通常のセラミ
ックスの１／５〜１／２の発泡セラミックスを製造でき
る。また、比較的低い温度で安定して分解ガスが発生す
るため、焼成温度の設定と品質管理が容易になる。As described above, according to the present invention,
The melt phase having reduced viscosity causes volume expansion due to the generated decomposition gas and foams, and the constituent mineral components of attapulgite form a skeleton to maintain the shape. The bulk specific gravity is 1/5 to 1 of ordinary ceramics. / 2 foam ceramics can be manufactured. Further, since the decomposition gas is generated stably at a relatively low temperature, setting of the firing temperature and quality control are facilitated.

【００２９】また、ドロマイトアタパルジャイトを添加
すると発泡の補強ができる。また、ペタライトを添加す
るとガラス屑の粘度を調節することができる。Addition of dolomite attapulgite can enhance foaming. Further, when petalite is added, the viscosity of the glass waste can be adjusted.

【図面の簡単な説明】[Brief description of the drawings]

【図１】通常のアタパルジャイトのＸ線回折パターン。FIG. 1 is an X-ray diffraction pattern of normal attapulgite.

【図２】ドロマイトアタパルジャイトのＸ線回折パター
ン。FIG. 2 is an X-ray diffraction pattern of dolomite attapulgite.

【図３】通常アタパルジャイトのＤＴＡパターン。FIG. 3 is a DTA pattern of a normal attapulgite.

【図４】ドロマイトアタパルジャイトのＤＴＡパター
ン。FIG. 4 is a DTA pattern of dolomite attapulgite.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 高嶋 廣夫 愛知県尾張旭市南原山町赤土230番地 新 興窯業株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroo Takashima 230 Akado, Minamiharayama-cho, Owariasahi-shi, Aichi Prefecture Inside Shinko Ceramics Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 産業廃棄物や一般廃棄物としてのガラス
屑と天然鉱物のアタパルジャイトを微粉砕した坏土を所
定の形に成形し、ガラス屑が融液化し、アタパルジャイ
トの分解ガスが発生する６３０〜９００℃で焼成するこ
とを特徴とする発泡セラミックスの製造方法。1. A kneaded material obtained by finely pulverizing glass waste as industrial waste or general waste and attapulgite as a natural mineral is formed into a predetermined shape, and the glass waste is melted to generate decomposed gas of attapulgite. A method for producing foamed ceramics, wherein the method is fired at a temperature of about 900 ° C. 【請求項２】 ガラス屑を７５〜９５重量％、アタパル
ジャイトを５〜２５重量％の範囲で混合するようにした
請求項１記載の発泡セラミックスの製造方法。2. The method for producing foamed ceramics according to claim 1, wherein 75 to 95% by weight of glass waste and 5 to 25% by weight of attapulgite are mixed. 【請求項３】 ドロマイトアタパルジャイト又はペタラ
イトを添加するようにした請求項１または２記載の発泡
セラミックスの製造方法。3. The method for producing a foamed ceramic according to claim 1, wherein dolomite attapulgite or petalite is added.
JP120498A 1998-01-07 1998-01-07 Production of expanded ceramics Pending JPH11199342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP120498A JPH11199342A (en) 1998-01-07 1998-01-07 Production of expanded ceramics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP120498A JPH11199342A (en) 1998-01-07 1998-01-07 Production of expanded ceramics

Publications (1)

Publication Number Publication Date
JPH11199342A true JPH11199342A (en) 1999-07-27

Family

ID=11494943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP120498A Pending JPH11199342A (en) 1998-01-07 1998-01-07 Production of expanded ceramics

Country Status (1)

Country Link
JP (1) JPH11199342A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323109B1 (en) * 2011-12-14 2013-10-30 한국세라믹기술원 Porous lightweight ceramics and manufacturing method of the same
CN109912294A (en) * 2018-09-19 2019-06-21 王昌平 A kind of foamed ceramic material pre-oxidation manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323109B1 (en) * 2011-12-14 2013-10-30 한국세라믹기술원 Porous lightweight ceramics and manufacturing method of the same
CN109912294A (en) * 2018-09-19 2019-06-21 王昌平 A kind of foamed ceramic material pre-oxidation manufacturing method

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