JPH08151241A - Production of colored artificial stone - Google Patents
Production of colored artificial stoneInfo
- Publication number
- JPH08151241A JPH08151241A JP6319162A JP31916294A JPH08151241A JP H08151241 A JPH08151241 A JP H08151241A JP 6319162 A JP6319162 A JP 6319162A JP 31916294 A JP31916294 A JP 31916294A JP H08151241 A JPH08151241 A JP H08151241A
- Authority
- JP
- Japan
- Prior art keywords
- artificial stone
- raw material
- blast furnace
- basicity
- colored artificial
- 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
Links
- 239000002969 artificial stone Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 52
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 26
- 239000000292 calcium oxide Substances 0.000 claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010433 feldspar Substances 0.000 claims abstract description 13
- 230000001590 oxidative effect Effects 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims description 24
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000003086 colorant Substances 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高炉スラグを主たる原
料として用い、風呂のタイルや壁面材、床材等の建築材
料に利用される黄色および灰色のカラー人造石の製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing artificial stones of yellow and gray colors, which are mainly used as a raw material for blast furnace slag and are used for building materials such as bath tiles, wall materials and floor materials. .
【０００２】[0002]
【従来の技術】高炉スラグを主成分とした人造石を得る
場合には、特公昭５１−３７６５４号公報に開示されて
いるように、高炉スラグにＳｉＯ2 を５〜２０％添加し
て溶融混合し、表１または表２の化学組成とし、成形枠
に注入後、高温雰囲気中で除冷し、凝固後に熱処理する
方法が採用されている。そして、従来、カラー人造石を
得る場合には、上記の化学組成に着色剤として金属酸化
物を添加する製造方法が採用されるようになっている。
即ち、例えば緑色系および青色系のカラー人造石を製造
する場合には、金属酸化物として酸化コバルトが添加さ
れるようになっている。2. Description of the Related Art In order to obtain an artificial stone containing blast furnace slag as a main component, as disclosed in JP-B-51-37654, 5 to 20% of SiO 2 is added to the blast furnace slag and melt-mixed. Then, the chemical composition shown in Table 1 or Table 2 is used, and after being poured into a molding frame, it is cooled in a high temperature atmosphere, solidified, and then heat treated. Then, conventionally, in the case of obtaining a colored artificial stone, a manufacturing method in which a metal oxide is added as a colorant to the above chemical composition has been adopted.
That is, for example, in the case of manufacturing green and blue color artificial stones, cobalt oxide is added as a metal oxide.
【０００３】[0003]
【表１】 [Table 1]
【０００４】[0004]
【表２】 [Table 2]
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、カラー
人造石を風呂のタイルや壁面材、床材等の建築材料に利
用しようとすると、施工者の多用なニーズに対応させる
ため、多くの色調のカラー人造石を準備しておくことが
必要であるが、上記従来の製造方法により得られるカラ
ー人造石には、黄色および灰色の色調が存在していな
い。However, when trying to use colored artificial stones as building materials such as bath tiles, wall materials, and floor materials, in order to meet the various needs of builders, many colors of colors are used. Although it is necessary to prepare an artificial stone, the color artificial stone obtained by the above conventional manufacturing method does not have yellow and gray tones.
【０００６】従って、本発明においては、黄色および灰
色のカラー人造石の製造方法を提供することを目的とし
ている。Therefore, it is an object of the present invention to provide a method for producing yellow and gray colored artificial stones.
【０００７】[0007]
【課題を解決するための手段】上記目的を解決するため
に、請求項１のカラー人造石の製造方法は、７０重量％
以下の高炉スラグに、長石および生石灰が塩基度１．０
７以下となるように添加すると共に酸化チタンを添加し
て原料を作成し、該原料を酸化条件下で溶融することを
特徴としている。In order to solve the above-mentioned object, a manufacturing method of a colored artificial stone according to claim 1 is 70% by weight.
Feldspar and quicklime are basic 1.0 in the following blast furnace slag.
It is characterized in that the raw material is prepared by adding titanium oxide in an amount of 7 or less and the raw material is melted under oxidizing conditions.
【０００８】また、請求項２のカラー人造石の製造方法
は、７０重量％以下の高炉スラグに、長石および生石灰
が塩基度１．１７以上となるように添加すると共に酸化
チタンを添加して原料を作成し、該原料を酸化条件下で
溶融することを特徴としている。In the method for producing a colored artificial stone according to claim 2, the raw material is added to blast furnace slag of 70% by weight or less so that feldspar and quick lime have a basicity of 1.17 or more and titanium oxide. Is prepared and the raw material is melted under oxidizing conditions.
【０００９】[0009]
【作用】上記の構成において、高炉スラグは、Ｓｉ
Ｏ2 、ＣａＯ、Ａｌ2 Ｏ3 等を含有しており、この３成
分で全成分中の９０重量％を占めている。また、長石
は、ＳｉＯ2 を主成分とし、生石灰は、ＣａＯを主成分
としている。そして、これらの長石および生石灰は、高
炉スラグと長石と生石灰とからなる基本原料の色調を薄
めるために添加されており、原料中の塩基度（ＣａＯ／
ＳｉＯ2 ）を調整することによって、基本原料の色調を
薄緑〜アイボリーにすることになる。In the above structure, the blast furnace slag is made of Si.
It contains O 2 , CaO, Al 2 O 3, etc., and these three components account for 90% by weight of all components. Further, feldspar has SiO 2 as a main component, and quick lime has CaO as a main component. These feldspar and quicklime are added to dilute the color tone of the basic raw material composed of blast furnace slag, feldspar and quicklime, and the basicity (CaO / CaO /
The color tone of the basic raw material can be changed from light green to ivory by adjusting (SiO 2 ).
【００１０】また、酸化チタンは、カラー人造石の色調
を黄色または灰色にする着色剤として添加されており、
表３に示すように、塩基度（ＣａＯ／ＳｉＯ2 ）が１．
０７以下においては、酸化チタンが黄色のＴｉＯ2 とし
て上記の基本原料中に存在し、基本原料の色調（薄緑〜
アイボリー）と重なることによって、カラー人造石を黄
色の色調にすることになる。尚、塩基度が１．０を下回
ると、ガラス化し易くなるため、カラー人造石を黄色の
色調にするには、塩基度が１．０〜１．０７の範囲であ
ることが望ましい。一方、塩基度（ＣａＯ／ＳｉＯ2 ）
が１．１７以上においては、酸化チタンが紫色のＴｉ2
Ｏ3 として基本原料中に存在し、基本原料の色調（薄緑
〜アイボリー）と重なることによって、カラー人造石を
灰色の色調にすることになる。尚、塩基度が１．３を越
えると、石質に艶が不足し、融点が高くなって多大なエ
ネルギーを要することになるため、カラー人造石を灰色
の色調にするには、塩基度が１．１７〜１．３の範囲で
あることが望ましい。Titanium oxide is added as a coloring agent for changing the color tone of colored artificial stone to yellow or gray.
As shown in Table 3, the basicity (CaO / SiO 2 ) is 1.
In the case of 07 or less, titanium oxide was present in the above basic raw material as yellow TiO 2 , and the color tone of the basic raw material (light green to
By overlapping with the ivory, the color artificial stone will have a yellow tone. If the basicity is less than 1.0, vitrification is likely to occur, so that the basicity is preferably in the range of 1.0 to 1.07 in order to give the colored artificial stone a yellow color tone. On the other hand, basicity (CaO / SiO 2 )
Is 1.17 or more, titanium oxide is purple Ti 2
O 3 is present in the basic raw material and overlaps with the color tone (light green to ivory) of the basic raw material, thereby giving the color artificial stone a gray color tone. If the basicity exceeds 1.3, the stone quality will lack luster and the melting point will be high, requiring a great deal of energy. It is desirable that the range is 1.17 to 1.3.
【００１１】高炉スラグを７０重量％以下とした理由
は、７０重量％を越えると、高炉スラグ自体の茶褐色の
色調が強くなって塩基度の調整のみでは薄緑〜アイボリ
ーの色調とすることができなくなり、結果として黄色お
よび灰色のカラー人造石を得ることができなくなるから
である。尚、高炉スラグは、５０重量％以上であること
が望ましい。これは、５０重量％未満であると、過剰な
生石灰（ＣａＯ）が単独で存在することによって、カラ
ー人造石が風化し易くなるからである。The reason for setting the blast furnace slag to 70% by weight or less is that if it exceeds 70% by weight, the brown color tone of the blast furnace slag itself becomes strong, and the color tone of light green to ivory can be obtained only by adjusting the basicity. This is because the yellow and gray colored artificial stones cannot be obtained as a result. The blast furnace slag is preferably 50% by weight or more. This is because if it is less than 50% by weight, the artificial artificial color is easily weathered due to the presence of excess quicklime (CaO) alone.
【００１２】また、上記の原料を酸化条件下で溶融する
理由は、以下の通りである。高炉スラグは、上述のＳｉ
Ｏ2 、ＣａＯ、Ａｌ2 Ｏ3 の３成分の他、微量成分とし
て、ＭｇＯ、ＭｎＯ、ＴｉＯ2 、Ｆｅ2 Ｏ3 、ＳＯ3 等
を含有している。ＳＯ3 は、約１重量％含まれており、
大部分または一部が硫黄（Ｓ）として存在している。こ
の硫黄は、着色剤として添加された金属酸化物である酸
化チタンや、高炉スラグ中に含まれる金属酸化物と反応
して黒色系の硫化物を形成したり、良好な発色に有効な
金属酸化物を消費させるため、目的とするカラー人造石
の製造を阻害することになる。そこで、硫黄が空気中で
容易に燃焼して二酸化硫黄になることに着目し、原料を
直接的に酸化条件下で加熱・溶融させることによって、
硫黄を二酸化硫黄として除去するためである。The reason why the above raw materials are melted under oxidizing conditions is as follows. Blast furnace slag is the above-mentioned Si
In addition to the three components of O 2 , CaO and Al 2 O 3 , MgO, MnO, TiO 2 , Fe 2 O 3 , SO 3 and the like are contained as minor components. SO 3 is contained in about 1% by weight,
Most or part is present as sulfur (S). This sulfur reacts with titanium oxide, which is a metal oxide added as a colorant, or metal oxide contained in blast furnace slag to form a black sulfide, or a metal oxide effective for good color development. Since it consumes things, it hinders the production of the desired colored artificial stone. Therefore, paying attention to the fact that sulfur easily burns in the air to become sulfur dioxide, by directly heating and melting the raw material under oxidizing conditions,
This is because sulfur is removed as sulfur dioxide.
【００１３】尚、酸化条件下での溶融には、化石燃料ま
たはプラズマ火炎の吹き付け、或いは電磁波照射により
原料を加熱溶融させ、加熱と同時に溶融部分に十分な空
気を供給する方法が採用されていても良いし、加熱溶融
している原料に旋回力を付与しながら火炎で硫黄成分を
燃焼させる方法が採用されていても良い。或いは、熱分
解で酸素を放出するＮａＮＯ3 等の酸化剤を添加して加
熱溶融する方法であっても良い。For melting under oxidizing conditions, a method has been adopted in which fossil fuel or plasma flame is sprayed or the raw material is heated and melted by electromagnetic wave irradiation, and at the same time, sufficient air is supplied to the melted portion. Alternatively, a method of burning a sulfur component with a flame while applying a swirling force to the raw material that is heated and melted may be adopted. Alternatively, a method of adding an oxidizing agent such as NaNO 3 that releases oxygen by thermal decomposition and heating and melting may be used.
【００１４】[0014]
【実施例】表３は、表中の高炉スラグ、長石、生石灰、
および酸化チタン（ＴｉＯ2 ）を実施例１〜８および比
較例１〜５の配合割合で混合して原料を作成し、マイク
ロ波溶融炉を用いて空気雰囲気（酸化条件）下で溶融し
て得られたカラー人造石の塩基度（ＣａＯ／Ｓｉ
Ｏ2 ）、色調および石質を示したものである。Examples Table 3 shows blast furnace slag, feldspar, quicklime,
And titanium oxide (TiO 2 ) are mixed in the compounding ratios of Examples 1 to 8 and Comparative Examples 1 to 5 to prepare raw materials, which are obtained by melting in a microwave melting furnace under an air atmosphere (oxidizing conditions). Colored artificial stone basicity (CaO / Si
O 2 ), color tone and stone quality.
【００１５】この結果、実施例１〜３・７の配合割合に
よれば、黄色の色調で結晶質のカラー人造石が得られる
ことが判明し、実施例４〜６・８の配合割合によれば、
灰色の色調で結晶質のカラー人造石が得られることが判
明し、比較例１〜５の配合割合によれば、黄色および灰
色の混ざり合ったカラー人造石が得られることが判明し
た。即ち、高炉スラグに長石および生石灰を添加し、塩
基度（ＣａＯ／ＳｉＯ2 ）を１．０７以下となるように
調整することによって、黄色のカラー人造石を得ること
ができる一方、塩基度（ＣａＯ／ＳｉＯ2 ）が１．１７
以上となるように調整することによって、灰色のカラー
人造石を得ることができることが明らかになった。As a result, according to the blending ratios of Examples 1 to 3 and 7, it was found that a crystalline color artificial stone with a yellow color tone was obtained, and the blending ratios of Examples 4 to 6.8 were found. If
It was found that a crystalline colored artificial stone having a gray color tone was obtained, and it was found that a mixed colored yellow and gray artificial stone was obtained according to the blending ratios of Comparative Examples 1 to 5. That is, by adding feldspar and quicklime to the blast furnace slag and adjusting the basicity (CaO / SiO 2 ) to be 1.07 or less, a yellow colored artificial stone can be obtained, while basicity (CaO / CaO / SiO 2 ) is 1.17
It has been clarified that a gray color artificial stone can be obtained by adjusting the above.
【００１６】[0016]
【表３】 [Table 3]
【００１７】[0017]
【発明の効果】請求項１の発明は、以上のように、７０
重量％以下の高炉スラグに、長石および生石灰が塩基度
１．０７以下となるように添加すると共に酸化チタンを
添加して原料を作成し、該原料を酸化条件下で溶融する
構成とすることによって、黄色の色調のカラー人造石を
製造することができるという効果を奏する。According to the invention of claim 1, as described above,
By adding feldspar and quicklime to a basicity of 1.07 or less and adding titanium oxide to a blast furnace slag of not more than wt% to prepare a raw material, and melting the raw material under oxidizing conditions. The effect that a colored artificial stone with a yellow color tone can be manufactured is exhibited.
【００１８】請求項２の発明は、以上のように、７０重
量％以下の高炉スラグに、長石および生石灰が塩基度
１．１７以上となるように添加すると共に酸化チタンを
添加して原料を作成し、該原料を酸化条件下で溶融する
構成とすることによって、灰色の色調のカラー人造石を
製造することができるという効果を奏する。According to the second aspect of the present invention, as described above, the raw material is prepared by adding titanium oxide to blast furnace slag of 70% by weight or less so that feldspar and quick lime have a basicity of 1.17 or more. However, by adopting a constitution in which the raw material is melted under oxidizing conditions, it is possible to produce a color artificial stone having a gray color tone.
Claims (2)
よび生石灰が塩基度１．０７以下となるように添加する
と共に酸化チタンを添加して原料を作成し、該原料を酸
化条件下で溶融することを特徴とするカラー人造石の製
造方法。1. A blast furnace slag of 70% by weight or less is added so that feldspar and quicklime have a basicity of 1.07 or less and titanium oxide is added to prepare a raw material, and the raw material is melted under oxidizing conditions. A method of manufacturing a colored artificial stone, which comprises:
よび生石灰が塩基度１．１７以上となるように添加する
と共に酸化チタンを添加して原料を作成し、該原料を酸
化条件下で溶融することを特徴とするカラー人造石の製
造方法。2. A blast furnace slag of 70% by weight or less is added so that feldspar and quicklime have a basicity of 1.17 or more and titanium oxide is added to prepare a raw material, and the raw material is melted under oxidizing conditions. A method of manufacturing a colored artificial stone, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6319162A JPH08151241A (en) | 1994-11-28 | 1994-11-28 | Production of colored artificial stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6319162A JPH08151241A (en) | 1994-11-28 | 1994-11-28 | Production of colored artificial stone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08151241A true JPH08151241A (en) | 1996-06-11 |
Family
ID=18107131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6319162A Pending JPH08151241A (en) | 1994-11-28 | 1994-11-28 | Production of colored artificial stone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08151241A (en) |
-
1994
- 1994-11-28 JP JP6319162A patent/JPH08151241A/en active Pending
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