JP2000043014A - Synthetic lapis lazuri raw material and production of synthetic lapis lazuri - Google Patents
Synthetic lapis lazuri raw material and production of synthetic lapis lazuriInfo
- Publication number
- JP2000043014A JP2000043014A JP21466498A JP21466498A JP2000043014A JP 2000043014 A JP2000043014 A JP 2000043014A JP 21466498 A JP21466498 A JP 21466498A JP 21466498 A JP21466498 A JP 21466498A JP 2000043014 A JP2000043014 A JP 2000043014A
- Authority
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- Prior art keywords
- mass
- lapis
- synthetic
- sodium silicate
- lazuri
- Prior art date
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Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は合成ラピスラズリ原
料とそれを用いた合成ラピスラズリの製造方法に関す
る。The present invention relates to a synthetic lapis lazuli raw material and a method for producing a synthetic lapis lazuli using the same.
【０００２】[0002]
【従来の技術】ラピスラズリは、日本名を青金石とい
い、古くから装身具や飾り石として珍重されるととも
に、粉末にして絵の具などの顔料としても用いられてき
た。ラピスラズリは、方ソーダ石族として一括される鉱
物のひとつである。方ソーダ石族の鉱物はどれも同じ結
晶構造をもっており、アルミニウム（Ａｌ）または珪素
（Ｓｉ）を四つの酸素（Ｏ）が囲む四面体の中に、ナト
リウム（Ｎａ）、カルシウム（Ｃａ）と、硫黄（Ｓ）、
四酸化硫黄、塩素（Ｃｌ）が入った構造を有している。
結晶系は立法晶系であり、モース硬度は５〜６で、比重
は２．４程度である。2. Description of the Related Art Lapis lazuli has a Japanese name of blue gold stone, and has been prized as ornaments and decorative stones since ancient times, and has been used as a pigment in paints and the like in the form of powder. Lapis lazuli is one of the minerals grouped together as a sodalite family. All the minerals of the sodalite family have the same crystal structure. Sodium (Na), calcium (Ca) and aluminum (Al) or silicon (Si) are surrounded by four oxygen (O) tetrahedrons. Sulfur (S),
It has a structure containing sulfur tetroxide and chlorine (Cl).
The crystal system is a cubic crystal system, and has a Mohs hardness of 5 to 6 and a specific gravity of about 2.4.
【０００３】このようなラピスラズリを人工的に製造す
るために、本発明者は、特願平９−２９７０５７号にお
いて、ウルトラマリン１０〜９０質量％、炭酸カルシウ
ム５〜６０質量％、ポルトランドセメント５〜８５質量
％から成る基本原料１００質量％に対し、粒径４０〜１
０００μｍのパイライトを１５質量％以下となるように
添加して調製、水で養生して合成する方法を提案した。In order to artificially produce such lapis lazuli, the present inventor has disclosed in Japanese Patent Application No. 9-297057, 10 to 90% by mass of ultramarine, 5 to 60% by mass of calcium carbonate, and 5 to 60% by mass of Portland cement. With respect to 100% by mass of the basic material composed of 85% by mass,
A method was proposed in which 000 μm of pyrite was added so as to be 15% by mass or less, prepared, cured with water, and synthesized.
【０００４】[0004]
【発明が解決しようとする課題】ところが、この従来の
合成ラピスラズリは、天然のラピスラズリと同様の結晶
相を持ち、同様の色と質感を呈するものの、天然ラピス
ラズリに比べると硬度が低いため（モース硬度：天然５
〜６、合成３）、湿式研磨では鏡面が出しにくく、また
通常のゴミ（砂埃などは殆ど珪酸塩鉱物であるため、モ
ース硬度は５程度）等で傷が入りやすいという問題があ
った。However, this conventional synthetic lapis lazuli has the same crystal phase and the same color and texture as natural lapis lazuli, but has a lower hardness than the natural lapis lazuli (Mohs hardness). : Natural 5
6, synthesis 3), there is a problem that a mirror surface is hardly formed by wet polishing, and scratches are likely to occur due to ordinary dust (Most hardness is about 5 because sand and the like are almost silicate minerals).
【０００５】そこで、本発明者はかかる課題を解決する
べく鋭意研究を行った結果、発色調整剤の炭酸カルシウ
ムを添加することなく、結合剤をポルトランドセメント
以外に粉末珪酸ソーダを添加し、粉末珪酸ソーダのＮａ
溶出抑制剤としてトリポリリン酸二水素アルミニウムを
添加し、粉末珪酸ソーダとトリポリリン酸二水素アルミ
ニウムの化学反応とポルトランドセメントの水和反応を
促進させるために水を添加して１５０℃〜２５０℃、１
時間、１ｔｆ／ｃｍ2 の条件でホットプレスして合成す
ることにより上記課題を解決することができることを知
見した。Therefore, the present inventor has conducted intensive studies in order to solve such a problem. As a result, powdered sodium silicate was added to the binder other than Portland cement without adding calcium carbonate as a color development regulator, and powdered silicate was added. Soda Na
Aluminum dihydrogen tripolyphosphate is added as an elution inhibitor, and water is added at 150 ° C. to 250 ° C. to promote the chemical reaction between powdered sodium silicate and aluminum dihydrogen tripolyphosphate and the hydration reaction of Portland cement.
It has been found that the above problem can be solved by performing hot pressing under conditions of 1 tf / cm 2 for synthesis.
【０００６】本発明は、このような知見に基づいてなさ
れたものであり、天然のラピスラズリと同様の結晶相と
色彩と質感をもち、かつ天然のラピスラズリと同等の硬
度を有する合成ラピスラズリ原料とそれを用いた合成ラ
ピスラズリの製造方法を提供することを目的とする。The present invention has been made based on such findings, and a synthetic lapis lazuli material having the same crystal phase, color and texture as natural lapis lazuli and having the same hardness as that of natural lapis lazuli has been developed. It is an object of the present invention to provide a method for producing a synthetic lapis lazuli using the same.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る合成ラピスラズリ原料は、ウルトラマ
リンを４５〜６５質量％、ポルトランドセメントを１５
〜３５質量％、粉末珪酸ソーダを１５〜３０質量％、ト
リポリリン酸二水素アルミニウムを前記粉末珪酸ソーダ
の３０〜４０質量％添加した基本原料１００質量％に対
し、粒径が４０〜１０００μｍのパイライトを１５質量
％まで添加すると共に、水を１０〜２０質量％添加して
成る。In order to achieve the above object, the synthetic lapis lazuli raw material according to the present invention comprises 45 to 65% by mass of ultramarine and 15 to 65% by weight of Portland cement.
Pyrite having a particle size of 40 to 1000 μm is added to 100% by mass of a base material obtained by adding 35 to 30% by mass of powdered sodium silicate and 15 to 30% by mass of aluminum dihydrogen triphosphate to 30 to 40% by mass of the powdered sodium silicate. It is formed by adding water up to 15% by mass and adding 10 to 20% by mass of water.
【０００８】また、本発明に係る合成ラピスラズリの製
造方法によれば、上記原料を１５０〜２５０℃、１時
間、１ｔｆ／ｃｍ2 でホットプレスして合成する。Further, according to the method for producing a synthetic lapis lazuli according to the present invention, the raw materials are synthesized by hot pressing at 150 to 250 ° C. for 1 hour at 1 tf / cm 2 .
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施形態を詳細に
説明する。本発明では、着色剤として合成ウルトラマリ
ン（Ｎａ6 Ａｌ6 Ｓｉ6 Ｏ2 Ｓx ）を４５〜６５質量％
添加する。ラピスラズリが美しい青色に発色するには、
ウルトラマリンが不可欠である。この発色の原因は、珪
酸塩中にコロイド状の遊離硫黄が分散しているためであ
る。ウルトラマリンは、耐熱性、耐アルカリ性が小さ
く、容易に硫黄が珪酸塩の中から遊離して脱色し易い着
色剤である。したがって、ウルトラマリンの添加量が４
５質量％未満であるとポルトランドセメントや粉末珪酸
ソーダのアルカリ成分が多くなり、しかもホットプレス
により加熱されるため、ウルトラマリンが脱色してしま
う。また、このウルトラマリンが６５質量％を超えると
必然的に結合剤の添加量が減り、硬度が小さくなってク
ラックも多発する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. In the present invention, synthetic ultramarine (Na 6 Al 6 Si 6 O 2 S x ) is used as a coloring agent in an amount of 45 to 65% by mass.
Added. In order for lapis lazuli to develop a beautiful blue color,
Ultramarine is essential. The cause of this coloration is that colloidal free sulfur is dispersed in the silicate. Ultramarine is a coloring agent having low heat resistance and low alkali resistance, and easily releasing sulfur from silicate and easily discoloring. Therefore, the amount of ultramarine added was 4
If the content is less than 5% by mass, the alkali component of the portland cement or powdered sodium silicate increases, and furthermore, since it is heated by a hot press, the ultramarine decolorizes. On the other hand, if the amount of ultramarine exceeds 65% by mass, the amount of the binder added inevitably decreases, the hardness decreases, and cracks occur frequently.
【００１０】結合剤としてポルトランドセメントを１５
〜３５質量％と粉末珪酸ソーダを１５〜３０質量％添加
し、助材としてトリポリリン酸二水素アルミニウムを粉
末珪酸ソーダの３０〜４０質量％の範囲で使用する。ポ
ルトランドセメントだけでは天然ラピスと同じ硬さ（モ
ース硬度５）まで向上させることができないが、粉末珪
酸ソーダを加えることにより、硬度を大幅に向上させる
ことができる。[0010] Portland cement is used as a binder.
３５35% by mass and 15-30% by mass of powdered sodium silicate are added, and aluminum dihydrogen tripolyphosphate is used as an auxiliary agent in the range of 30-40% by mass of powdered sodium silicate. Portland cement alone cannot improve the hardness to the same level as natural lapis (Mohs hardness 5), but the hardness can be greatly improved by adding powdered sodium silicate.
【００１１】但し、粉末珪酸ソーダは不安定な材料であ
るため、助材が必要である。まず、耐水性を向上させる
ためにゲル化剤が必要であるが、これはポルトランドセ
メントがゲル化剤の役割を果たす（水和反応時にアルカ
リ性になり、そのとき珪酸ソーダがゲル化する）。However, since powdered sodium silicate is an unstable material, an auxiliary material is required. First, a gelling agent is required to improve water resistance, and Portland cement plays a role of a gelling agent (it becomes alkaline at the time of hydration reaction, at which time sodium silicate gels).
【００１２】次に、ナトリウム（Ｎａ）が析出して白華
が生じるため、トリポリリン酸二水素アルミニウムを添
加して粉末珪酸ソーダ中のナトリウムと化学反応させて
（ＡｌＨ2 Ｐ3 ＋２Ｎａ+ →ＡｌＮａ2 Ｐ3 Ｏ10＋２Ｈ
+ ）、ナトリウムの析出を防ぐようにした。但し、トリ
ポリリン酸二水素アルミニウムの添加量は、粉末珪酸ソ
ーダの３０〜４０質量％にする。３０質量％未満では白
華を完全に抑制することができず、４０質量％を超える
と硬度が低くなり、クラックが多発する。Next, since sodium (Na) is precipitated to cause efflorescence, aluminum dihydrogen triphosphate is added and chemically reacted with sodium in powdered sodium silicate (AlH 2 P 3 + 2Na + → AlNa 2). P 3 O 10 + 2H
+ ) To prevent sodium precipitation. However, the addition amount of aluminum dihydrogen tripolyphosphate is 30 to 40% by mass of the powdered sodium silicate. If the amount is less than 30% by mass, it is not possible to completely suppress efflorescence, and if it exceeds 40% by mass, the hardness becomes low and cracks occur frequently.
【００１３】このポルトランドセメントの添加量が１５
質量％未満になると、珪酸ソーダを充分にゲル化できな
いため、合成したラピスは耐水性が悪くなり、湿式研磨
では鏡面がでない。一方、ポルトランドセメントの添加
量が３５質量％を超えると粉末珪酸ソーダの添加量が１
５質量％未満になり、硬度が天然ラピスラズリと同等ま
でには向上せず、湿式研磨で鏡面がでない。さらに、粉
末珪酸ソーダの添加量が３０質量％を超えるとポルトラ
ンドセメントの添加量が１５質量％未満となり、珪酸ソ
ーダを充分にゲル化することができず、耐水性が悪くな
り、湿式研磨では鏡面がでない。When the amount of Portland cement added is 15
If the content is less than mass%, sodium silicate cannot be sufficiently gelled, so that the synthesized lapis has poor water resistance, and the wet polishing does not have a mirror surface. On the other hand, when the addition amount of Portland cement exceeds 35% by mass, the addition amount of powdered sodium silicate becomes 1
It is less than 5% by mass, the hardness is not improved to the same level as natural lapis lazuli, and the mirror surface is not obtained by wet polishing. Further, when the addition amount of the powdered sodium silicate exceeds 30% by mass, the addition amount of the Portland cement becomes less than 15% by mass, so that the sodium silicate cannot be sufficiently gelled, the water resistance is deteriorated, and the wet polishing has a mirror surface. Is not.
【００１４】上記基本原料に対し、粒径４０〜１０００
μｍのパイライトを１５質量％以下となるように添加す
る。このパイライトの粒径が４０μｍ未満では、パイラ
イトが目立たず、添加する意味がなくなる。一方、１０
００μｍを超えると美観を損ねる。また、このパイライ
トの添加量については、１５質量％を超えると合成ラピ
スラズリの色調が非常に暗くなる。The particle size of the basic material is 40 to 1000.
μm of pyrite is added so as to be 15% by mass or less. When the particle size of the pyrite is less than 40 μm, the pyrite is inconspicuous and has no meaning to be added. On the other hand, 10
If it exceeds 00 μm, the appearance is impaired. If the amount of the pyrite exceeds 15% by mass, the color tone of the synthetic lapis lazuli becomes very dark.
【００１５】水（Ｈ2 Ｏ）は、粉末珪酸ソーダとトリポ
リリン酸二水素アルミニウムの化学反応とポルトランド
セメントの水和反応を促進させるために１０〜２０質量
％添加する。添加量が１０質量％未満では粉末珪酸ソー
ダとトリポリリン酸二水素アルミニウムが充分にイオン
交換できないため、Ｎａの溶出を完全に抑えることがで
きずに白華し、またポルトランドセメントの水和結合お
よび粉末珪酸ソーダの化学結合が不十分となるため、硬
度が低くなり、鏡面がでにくくなる。一方、２０質量％
を超えるとホットプレス時に水が型から流れ出し、その
時水に熔解している結合剤も流れ出るため、クラックが
多発する。Water (H 2 O) is added in an amount of 10 to 20% by mass in order to promote a chemical reaction between powdered sodium silicate and aluminum dihydrogen tripolyphosphate and a hydration reaction of Portland cement. If the added amount is less than 10% by mass, the powdered sodium silicate and aluminum dihydrogen tripolyphosphate cannot be sufficiently ion-exchanged, so that the elution of Na cannot be completely suppressed and the whitening occurs. Since the chemical bonding of sodium silicate becomes insufficient, the hardness becomes low, and it becomes difficult to obtain a mirror surface. On the other hand, 20% by mass
If the pressure exceeds the above, water flows out of the mold at the time of hot pressing, and the binder dissolved in the water at that time also flows out, so that many cracks occur.
【００１６】この原料を使ってホットプレス法によりラ
ピスラズリを合成する。ホットプレスは１ｔｆ／ｃｍ2
で加圧した後、１５０℃〜２５０℃で１時間程度加熱す
る。加熱温度が１５０℃未満であると、結合剤を充分に
化学反応させることができないため、硬度が上がらず、
鏡面が出にくくなる。一方、２５０℃を超えると、ウル
トラマリンの硫黄が遊離し、色が脱色するという問題が
発生する。Lapis lazuli is synthesized from this raw material by a hot press method. Hot press is 1tf / cm 2
Then, it is heated at 150 ° C. to 250 ° C. for about 1 hour. If the heating temperature is lower than 150 ° C., the binder cannot be sufficiently chemically reacted, so that the hardness does not increase,
The mirror surface is hard to come out. On the other hand, when the temperature exceeds 250 ° C., the sulfur of the ultramarine is liberated, which causes a problem that the color is decolorized.
【００１７】[0017]
【実施例】平均粒径１．５μｍのウルトラマリン（Ｓｉ
Ｏ2 ：３８．１％、Ａｌ2 Ｏ3 ：２３．７％、Ｎａ
2 Ｏ：２６．０％、Ｓ：１２．０％）、平均粒径４μｍ
のポルトランドセメント（ＳｉＯ2 ：２９．０％、Ａｌ
2 Ｏ3 ：１３．２％、Ｆｅ2 Ｏ3 ：１．２％、ＣａＯ：
４９．２％、ＭｇＯ：５．６％、ＳＯ3 ：１．２％）、
平均粒径１２μｍの粉末珪酸ソーダ（ＳｉＯ2 ：５７〜
６１％、Ｎａ2 Ｏ：１８〜２０％）、平均粒径６μｍの
トリポリリン酸二水素アルミニウム（ＡｌＨ2 Ｐ3 Ｏ16
・２Ｈ2 Ｏ）を所定の組成となるように混合して基本原
料を作り、これにパイライト粉末とイオン交換水を基本
原料に対し所定量添加した後、攪拌機で混合してラピス
ラズリ原料を作製した。この原料を型にチャージし、１
ｔｆ／ｃｍ2 加圧後、所定の温度１時間でホットプレス
して合成ラピスラズリを作製した。EXAMPLE Ultramarine (Si having an average particle size of 1.5 μm) was used.
O 2 : 38.1%, Al 2 O 3 : 23.7%, Na
2 O: 26.0%, S: 12.0%), average particle size 4 μm
Portland cement (SiO 2 : 29.0%, Al
2 O 3 : 13.2%, Fe 2 O 3 : 1.2%, CaO:
49.2%, MgO: 5.6%, SO 3: 1.2%),
Powdered sodium silicate having an average particle size of 12 μm (SiO 2 : 57 to
61%, Na 2 O: 18-20%), aluminum dihydrogen tripolyphosphate (AlH 2 P 3 O 16 ) having an average particle size of 6 μm
2H 2 O) to obtain a predetermined composition to form a basic raw material, to which a predetermined amount of pyrite powder and ion-exchanged water were added to the basic raw material, followed by mixing with a stirrer to prepare a lapis lazuli raw material. . This material is charged into a mold,
After pressurizing tf / cm 2 , hot pressing was performed at a predetermined temperature for 1 hour to produce a synthetic lapis lazuli.
【００１８】これをラッピング研磨した後、色調・鏡面
・クラック・白華について官能検査し、また硬度を調べ
た。その結果を表１に示す。なお、質感はパイライトが
美しく混入しているものは○に、パイライトの量が多す
ぎたり、大きすぎたり、小さすぎたりして美観を損ねる
ものは×に、パイライトが無添加のものは−にそれぞれ
分類した。色調は天然のラピスラズリと同じものは○
に、異なるものは×に分類した。白華はデシケータの底
に純水を張り、その中で合成したラピスラズリを１ケ月
間保管し、白華しなかったものは○に、白華したものは
×に分類した。鏡面は美しいものは○に、汚いものは×
に、評価できなかったものは−に分類した。硬度はモー
ス硬度を調べた。総合評価は良かったものは○、悪かっ
たものは×に分類した。After lapping and polishing, the color tone, the mirror surface, the cracks and the efflorescence were subjected to a sensory test and the hardness was checked. Table 1 shows the results. The texture is marked with ○ if the pyrite is beautifully mixed, x if the amount of pyrite is too large, too large or too small to impair the aesthetic appearance, and x if the pyrite is not added. Each was classified. The color is the same as natural lapis lazuli ○
In addition, different ones were classified as x. For white flowers, pure water was placed on the bottom of a desiccator, and the synthesized lapis lazuli was stored in the bottom for one month. ○ Mirrors are beautiful, × are dirty
Those that could not be evaluated were classified into-. For the hardness, Mohs hardness was examined. Good evaluations were classified as good, and poor evaluations were classified as x.
【００１９】また、この合成ラピスラズリをＸＲＤ（Ｘ
線回折）分析した結果、hauynite（藍方石）、noselite
（ノゼアン）、lazurite（天藍石）、pyrite（パイライ
ト）が検出され、天然ラピスを同じであることが確認さ
れた。Further, this synthetic lapis lazuli is converted to XRD (X
X-ray diffraction) analysis showed that hauynite (indigo), noselite
(Nosean), lazurite (pyrolite) and pyrite (pyrite) were detected, and it was confirmed that they were the same as natural lapis.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１から明らかなように、ウルトラマリン
を４５〜６５質量％、ポルトランドセメントを１５〜３
５質量％、粉末珪酸ソーダを１５〜３０質量％、トリポ
リリン酸二水素アルミニウムを粉末珪酸ソーダの３０〜
４０質量％添加した基本原料１００質量％に対し、粒径
が４０〜１０００μｍのパイライトを１５質量％まで添
加すると共に、水を１０〜２０質量％添加して成る合成
ラピスラズリ原料を用いた場合、質感、色調もよく、モ
ース硬度も天然ラピスラズリとほぼ同等のラピスラズリ
が得られる。As is apparent from Table 1, 45 to 65% by weight of ultramarine and 15 to 3% of Portland cement were used.
5% by mass, powdered sodium silicate 15 to 30% by mass, aluminum trihydrogen phosphate 30 to powdered sodium silicate
In the case of using a synthetic lapis lazuli material obtained by adding pyrite having a particle size of 40 to 1000 μm to 15% by mass and adding 10 to 20% by mass of water to 100% by mass of the basic material added by 40% by mass, It has good color tone and Mohs hardness, and lapis lazuli almost equivalent to natural lapis lazuli can be obtained.
【００２２】[0022]
【発明の効果】以上のように、本発明に係る合成ラピス
ラズリ原料によれば、ウルトラマリンを４５〜６５質量
％、ポルトランドセメントを１５〜３５質量％、粉末珪
酸ソーダを１５〜３０質量％、トリポリリン酸二水素ア
ルミニウムを粉末珪酸ソーダの３０〜４０質量％添加し
た基本原料１００質量％に対し、粒径が４０〜１０００
μｍのパイライトを１５質量％まで添加すると共に、水
を１０〜２０質量％添加して成ることから、天然と同レ
ベルの硬度（モース硬度５）を有するラピスラズリが合
成できるようになり、従来の合成ラピスラズリよりも傷
つきにくく、湿式研磨できれいに鏡面ができるようにな
る。また、天然と同等の色彩と質感を有する合成ラピス
ラズリが合成できる。さらに、天然と同じ結晶相のラピ
スラズリが合成できる。As described above, according to the synthetic lapis lazuli raw material according to the present invention, 45 to 65% by mass of ultramarine, 15 to 35% by mass of Portland cement, 15 to 30% by mass of powdered sodium silicate, tripolyline The particle size is 40 to 1000 with respect to 100% by mass of the basic raw material to which 30 to 40% by mass of aluminum dihydrogen silicate powder is added.
The addition of up to 15% by mass of a pyrite of μm and the addition of 10 to 20% by mass of water makes it possible to synthesize a lapis lazuli having the same level of hardness (Mohs hardness of 5) as that of the natural one. It is less susceptible to damage than lapis lazuli and can be mirror-polished by wet polishing. Further, a synthetic lapis lazuli having the same color and texture as natural can be synthesized. Further, lapis lazuli having the same crystal phase as natural can be synthesized.
【００２３】また、本発明の合成ラピスラズリの製造方
法によれば、上記合成ラピスラズリ原料を１５０〜２５
０℃、１時間、１ｔｆ／ｃｍ2 でホットプレスして合成
することから、天然と同レベルの硬度（モース硬度５）
を有するラピスラズリが合成できるようになり、従来の
合成ラピスラズリよりも傷つきにくく、湿式研磨できれ
いに鏡面ができるようになる。また、天然と同等の色彩
と質感を有する合成ラピスラズリが合成できる。さら
に、天然と同じ結晶相のラピスラズリが合成できる。Further, according to the method for producing a synthetic lapis lazuli of the present invention, the synthetic lapis lazuli raw material is used in an amount of 150 to 25.
Because it is synthesized by hot pressing at 0 ° C for 1 hour at 1 tf / cm 2 , it has the same level of hardness as natural (Mohs hardness 5)
Lapis lazuli can be synthesized, is less susceptible to scratches than conventional synthetic lapis lazuli, and a mirror surface can be formed neatly by wet polishing. Further, a synthetic lapis lazuli having the same color and texture as natural can be synthesized. Further, lapis lazuli having the same crystal phase as natural can be synthesized.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０４Ｂ 14:02 22:08 22:16 14:04） 111:82 Ｆターム(参考） 3B114 AA14 AA21 BB11 BE01 JA05 4G012 MB02 MB41 PA03 PA07 PB06 PB13 PC01 PC12 PD03 PE03 4G054 AA01 AA18 AB17 AC00 BB04 BB05 DA02 DA03 4G073 AA07 BA02 BA04 BA10 BA11 BA36 BA57 BA63 BA70 BA76 BA81 BC07 BC10 BD21 CB07 CE01 CE10 CF01 FA09 FB19 FB31 FC03 FC13 FC25 FC26 FC27 FD27 FF07 GA03 GA08 UB60 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) C04B 14:02 22:08 22:16 14:04) 111: 82 F term (Reference) 3B114 AA14 AA21 BB11 BE01 JA05 4G012 MB02 MB41 PA03 PA07 PB06 PB13 PC01 PC12 PD03 PE03 4G054 AA01 AA18 AB17 AC00 BB04 BB05 DA02 DA03 4G073 AA07 BA02 BA04 BA10 BA11 BA36 BA57 BA63 BA70 BA76 BA81 BC07 BC10 BD21 CB07 CE01 FC10 FC01 FC09 FC13 FC19 FC13 FC19 FC13 FC19 FC13 FC19 GA03 GA08 UB60
Claims (2)
ルトランドセメントを１５〜３５質量％、粉末珪酸ソー
ダを１５〜３０質量％、トリポリリン酸二水素アルミニ
ウムを前記粉末珪酸ソーダの３０〜４０質量％添加した
基本原料１００質量％に対し、粒径が４０〜１０００μ
ｍのパイライトを１５質量％まで添加すると共に、水を
１０〜２０質量％添加して成る合成ラピスラズリ原料。1. Addition of 45 to 65% by mass of ultramarine, 15 to 35% by mass of Portland cement, 15 to 30% by mass of powdered sodium silicate, and 30 to 40% by mass of aluminum dihydrogen tripolyphosphate of the powdered sodium silicate. The particle size is 40 to 1000 μ with respect to 100% by mass of the basic material.
A synthetic lapis lazuli raw material obtained by adding up to 15% by weight of m pyrite and adding 10 to 20% by weight of water.
１ｔｆ／ｃｍ2 でホットプレスして合成することを特徴
とする合成ラピスラズリの製造方法。2. The raw material is heated at 150 to 250 ° C. for 1 hour.
A method for producing synthetic lapis lazuli, wherein the composition is synthesized by hot pressing at 1 tf / cm 2 .
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21466498A JP3623660B2 (en) | 1998-07-29 | 1998-07-29 | Synthetic lapis lazuli raw material and method for producing synthetic lapis lazuli |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21466498A JP3623660B2 (en) | 1998-07-29 | 1998-07-29 | Synthetic lapis lazuli raw material and method for producing synthetic lapis lazuli |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000043014A true JP2000043014A (en) | 2000-02-15 |
| JP3623660B2 JP3623660B2 (en) | 2005-02-23 |
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ID=16659530
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21466498A Expired - Fee Related JP3623660B2 (en) | 1998-07-29 | 1998-07-29 | Synthetic lapis lazuli raw material and method for producing synthetic lapis lazuli |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958276A (en) * | 2021-03-18 | 2021-06-15 | 广东省科学院资源综合利用研究所 | Treatment method for solid waste of sapphire processing laponite |
-
1998
- 1998-07-29 JP JP21466498A patent/JP3623660B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958276A (en) * | 2021-03-18 | 2021-06-15 | 广东省科学院资源综合利用研究所 | Treatment method for solid waste of sapphire processing laponite |
| CN112958276B (en) * | 2021-03-18 | 2022-11-22 | 广东省科学院资源综合利用研究所 | Treatment method for solid waste of sapphire processing laponite |
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|---|---|
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