JPS63282116A - Granular calcium hydroxide and manufacture thereof - Google Patents
Granular calcium hydroxide and manufacture thereofInfo
- Publication number
- JPS63282116A JPS63282116A JP11633487A JP11633487A JPS63282116A JP S63282116 A JPS63282116 A JP S63282116A JP 11633487 A JP11633487 A JP 11633487A JP 11633487 A JP11633487 A JP 11633487A JP S63282116 A JPS63282116 A JP S63282116A
- Authority
- JP
- Japan
- Prior art keywords
- slaked lime
- aluminum silicate
- calcium hydroxide
- granular
- montmorillonite
- 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.)
- Granted
Links
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 39
- 239000000920 calcium hydroxide Substances 0.000 title claims abstract description 39
- 229910001861 calcium hydroxide Inorganic materials 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 10
- 230000008961 swelling Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 35
- 239000000440 bentonite Substances 0.000 claims description 11
- 229910000278 bentonite Inorganic materials 0.000 claims description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 11
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011872 intimate mixture Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000715 Mucilage Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000010998 test method 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/06—Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
発明の目的 purpose of invention
本発明は、改良された粒状消石灰とその製造方法に関す
る。 ここで１消石灰」とは、Ｃａ（ＯＨ＞２を主成分
とする石灰質の資材でおって、苦土消石灰を含み、農業
用、化学工業用、水処理用など種々の用途に向ける工業
資材を包括する。
［従来の技術１
消石灰は、粉末のままでは取扱いに不便である。
たとえば土壌に散布する際に、機械散布できず作業性が
悪いし、飛散しやすくて近隣に迷惑をかけたり、作業者
の安全衛生の観点からも注意を要する。 従って、消石
灰は粒状化することが望ましい。
しかし、消石灰を単に造粒しても、すぐ吸湿してしまい
、それとともに空気中の炭酸ガスと反応して炭酸カルシ
ウムが生成するため、固結しやすい。 固結しないまで
も、粒の表面は溶は難くなっているから、これを土壌に
散布しても仲々崩壊せず、使用効果が発揮されない。
粒の固結を防止し、崩壊性を高く保った粒状消石灰とし
て消石灰にベントナイトと植物性粘質物とを加えたもの
が提案された（特開昭５８−１９４７３８＞。 植物性
粘質物とは各種の天然のガム類をいい、そのエーテル化
誘導体も有用とされている。 しかし、輸入にまつ天然
物は廉価かつ安定な供給を望み難いし、それ自体はアル
カリ度に寄与しないという点でも不利益であるから、こ
のような材料を使用せずに、同様な効果を得たい。
［発明が解決しようとする問題点］
本発明の目的は、安価で入手しやすい副資材だけを使用
して、長期にわたり固化しない保存性と、水中または土
中での速やかな崩壊性を兼ねそなえた粒状消石灰と、そ
の製造方法を提供することにある。
発明の構成
［問題点を解決するための手段］
本発明の粒状消石灰は、消石灰７８〜９７重量％と膨潤
度８Ｉｎｌ／２ｇ以上のコロイド性含水ケイ酸アルミニ
ウム３〜２２重量％との緊密な混合物からなる。
ここで「膨潤度」とは、２５℃の蒸留水１００威中に２
ｇのサンプルを約２０回に別けて落し、２４時間後の見
掛容量を読む、いわゆるＡ、Ｃ。
Ｃ９法で測定された値である。
コロイド性含水ケイ酸アルミニウムの代表的なものは、
モンモリロナイト、またはそれを主成分とするＮａ型ベ
ントナイトである。
上記の粒状消石灰を製造する方法は、消石灰７８〜９７
重量％と膨潤度８ｄ／２ｔｊ以上のコロイド性含水ケイ
酸アルミニウム、代表的には上記したモンモリロナイト
またはそれを主成分とするＮａ型ベントナイト３〜２２
重量％とを混合し、プレスして、たとえば板状体とした
後、解砕し分級することからなる。
モンモリロナイトまたはＮａ型ベントナイトは、できる
だけ微粉末であることが好ましい。 また、あらかじめ
１００〜２００℃の温度に加熱して乾燥させて使用する
と、一層効果的であり、これは推奨すべき態様である。
［作 用］
前記した先行技術文献には、植物性粘質物とベントナイ
トの併用が不可欠であって、ベントナイト単独で使用し
て造粒した消石灰は、崩壊性が低いと記しである。 し
かし本発明者らの研究の結果、特定の高い膨潤性をもっ
たモンモリロナイトまたはＮａ型ベントナイトのような
コロイド性含水ケイ酸アルミニウムを用いることによっ
て、有機性粘結剤なしでも高い崩壊性および保存性をそ
なえた消石灰が造粒できることがわかったのである。
コロイド性含水ケイ酸アルミニウムの微粉末は、消石灰
の粉末と混合すると、その表面を被覆し、 −各粉末
粒子を隔てるように存在する。 それによって、消石灰
の粉末に環境中の水分ヤ炭醗ガスが接触して吸収され、
反応することを妨げるはたらきをする。
膨潤性が高いということは、吸湿力ないし吸水性が強い
ということを意味し、環境から消石灰が水分を吸収する
際に、コロイド性含水ケイ酸アルミニウムが水分を奪っ
てしまい、消石灰の吸湿は進まない。
このような作用があいまって、保存中の消石灰の吸湿は
ほとんどおこらず、炭酸ガスとの反応が防止され、粒子
の固結や個々の粒子の表面固化が抑制される。
一方、このようにして保存してきた粒状の消石灰を土壌
に散布すると、コロイド性含水ケイ酸アルミニウムが土
中の水分を激しく吸収して膨潤し、容積が膨張するから
、粒子中の消石灰の粉末がバラバラになる。 つまり、
容易に崩壊する。
上記のような効果を期待するためには、モンモリロナイ
トまたはそれを主成分とするＮａ型ベントナイトのよう
なコロイド性含水ケイ酸アルミニウムの膨潤度が８ｍ／
２ＳＦ以上であることを要する。
また、消石灰との混合量が３重量％に足らないと効果が
なく、高い崩壊性は得られない。 多量に加えても効果
が飽和するし、過大になると、Ｃａ （ＯＨ）２の含
有量が低下してしまうため、２２％を上限値とした。The present invention relates to an improved granular slaked lime and a method for producing the same. Here, 1 slaked lime is a calcareous material whose main component is Ca(OH>2), which contains slaked limestone and is an industrial material for various uses such as agriculture, chemical industry, and water treatment. [Conventional technology 1] Slaked lime is inconvenient to handle in its powder form. For example, when spraying it on soil, it cannot be sprayed mechanically, making it difficult to work, and it easily scatters, causing a nuisance to neighbors. Care must also be taken from the standpoint of worker safety and health. Therefore, it is desirable to granulate slaked lime. However, even if slaked lime is simply granulated, it will absorb moisture quickly and react with carbon dioxide in the air. Calcium carbonate is formed by the granules, which causes them to clump easily. Even if they do not clump, the surface of the grains is difficult to dissolve, so even if you spray it on the soil, it will not disintegrate easily, making it ineffective. A product in which bentonite and vegetable mucilage were added to slaked lime was proposed as granular slaked lime that prevented granulation from caking and maintained high disintegration (Japanese Patent Application Laid-open No. 58-194738). What is vegetable mucilage? It refers to various natural gums, and their etherified derivatives are also said to be useful.However, it is difficult to expect a cheap and stable supply of imported natural products, and they are also disadvantageous in that they do not themselves contribute to alkalinity. Since it is a benefit, we would like to obtain the same effect without using such materials. [Problems to be solved by the invention] The purpose of the present invention is to obtain the same effect without using such materials. The object of the present invention is to provide granular slaked lime that has both long-term storage without solidification and rapid disintegration in water or soil, and a method for producing the same. The granular slaked lime of the present invention consists of an intimate mixture of 78-97% by weight of slaked lime and 3-22% by weight of colloidal hydrated aluminum silicate with a swelling degree of 8 Inl/2 g or more. 2 in 100 °C of distilled water
So-called A and C, in which a sample of g is dropped in about 20 times and the apparent capacity is read after 24 hours. This is a value measured using the C9 method. Typical colloidal hydrated aluminum silicate are:
It is montmorillonite or Na-type bentonite whose main component is montmorillonite. The method for producing the above granular slaked lime includes slaked lime 78-97
Colloidal hydrous aluminum silicate having a weight percent and swelling degree of 8 d/2 tj or more, typically the above-mentioned montmorillonite or Na-type bentonite containing it as a main component 3 to 22
% by weight, pressed to form, for example, a plate-shaped body, and then crushed and classified. It is preferable that montmorillonite or Na-type bentonite be as fine a powder as possible. Moreover, it is even more effective to use it by heating it to a temperature of 100 to 200° C. and drying it before use, and this is a recommended mode. [Function] The above-mentioned prior art document states that the combined use of vegetable mucilage and bentonite is essential, and that slaked lime granulated using bentonite alone has low disintegration. However, as a result of the research conducted by the present inventors, by using colloidal hydrous aluminum silicate such as montmorillonite or Na-type bentonite, which has a specific high swelling property, high disintegration and preservability can be achieved even without an organic binder. It was discovered that slaked lime with the following properties could be granulated. The fine powder of colloidal hydrated aluminum silicate, when mixed with the powder of slaked lime, coats its surface and - is present to separate each powder particle. As a result, moisture and charcoal gas in the environment come into contact with the slaked lime powder and are absorbed.
It acts as a hindrance to a reaction. High swelling ability means strong hygroscopicity or water absorption. When slaked lime absorbs water from the environment, colloidal hydrated aluminum silicate takes away the water, and the slaked lime's moisture absorption progresses. do not have. Combined with these effects, slaked lime hardly absorbs moisture during storage, prevents reaction with carbon dioxide gas, and suppresses particle caking and surface solidification of individual particles. On the other hand, when the granular slaked lime stored in this way is sprinkled on soil, the colloidal hydrated aluminum silicate intensely absorbs water in the soil and swells, expanding its volume. Fall apart. In other words,
collapses easily. In order to expect the above effects, the swelling degree of colloidal hydrous aluminum silicate such as montmorillonite or Na-type bentonite whose main component is montmorillonite must be 8 m/min.
Must be 2SF or more. Furthermore, if the amount of slaked lime mixed is less than 3% by weight, there will be no effect and high disintegration properties will not be obtained. Even if a large amount is added, the effect will be saturated, and if the amount is too large, the content of Ca(OH)2 will decrease, so the upper limit was set at 22%.
比較のため、消石灰だけをコンパティングマシンで圧縮
（圧力５００Ｋｇｆ／Ｃｌ１）して板状にし、解砕、分
級して粒状消石灰を得た。（Ｎα１）膨潤度１６ｄ／２
ｇのＮａ型ベントナイトを、そのまま（Ｎα２〜５）ま
たは１５０℃に１ｈｒ加熱して乾燥させてから（Ｎα６
〜９）、消石灰にそれぞれ３％、５％、１０％または２
０％加えてミキサーで混合し、Ｎα１と同様にして粒状
消石灰を製造した。
これらをポリ袋に入れて放置し、製造直後、３０日後お
よび４５日後のサンプルを、東京肥糧検査所の定めた「
造粒した肥料の崩壊性試験法」に従って試験し、水中崩
壊残留率を測定した。
表に示した結果から明らかなように、本発明に従って製
造した粒状消石灰は、いずれも崩壊性がよい。 とくに
、乾燥させたＮａ型ベントナイトの使用は、非常に効果
的である。
発明の効果
本発明に従う粒状消石灰は、保存性および崩壊性にすぐ
れている。 これにより、取扱いの容易な肥料、土壌改
良剤、水改質材などを提供することができる。
特許出願人 吉沢石灰工業株式会社代理人 弁理
士 須 賀 総 夫
手続ネ市正書（自発）
昭和６２年６月１２８
１、事件の表示
昭和６２年特許願第１’１６３３４号
２、発明の名称
粒状消石灰とその製造方法
３、補正をする者
事件との関係 特許出願人
住 所 東京都中央区銀座三丁目９番４号名 称
吉澤石灰工業株式会社
代表者 吉澤兵左
４、代理人〒１０４
住 所 東京都中央区築地二丁目１５番１４号明細言
の発明の詳細な説明の欄
６、補正の内容For comparison, only slaked lime was compressed using a compacting machine (pressure: 500 Kgf/Cl1) into a plate shape, crushed and classified to obtain granular slaked lime. (Nα1) Swelling degree 16d/2
g of Na-type bentonite as it is (Nα2-5) or heated to 150°C for 1 hr and dried (Nα6).
~9), slaked lime with 3%, 5%, 10% or 2
Granular slaked lime was produced in the same manner as Nα1 by adding 0% and mixing with a mixer. These were placed in a plastic bag and left to stand, and samples immediately after production, 30 days later, and 45 days later were collected according to the standards set by the Tokyo Fertilizer Inspection Center.
A test was conducted according to the "Disintegration Test Method for Granulated Fertilizer" to measure the residual rate of disintegration in water. As is clear from the results shown in the table, all of the granular slaked lime produced according to the present invention have good disintegration properties. In particular, the use of dried Na-type bentonite is very effective. Effects of the Invention The granular slaked lime according to the present invention has excellent preservability and disintegration properties. This makes it possible to provide fertilizers, soil conditioners, water modifying materials, etc. that are easy to handle. Patent Applicant: Yoshizawa Lime Industry Co., Ltd. Agent, Patent Attorney: Souo Suga Procedural Official Report (Spontaneous) June 1988 128 1. Indication of the Case 1988 Patent Application No. 1'16334 2. Name of the Invention Granular slaked lime and its manufacturing method 3, and its relationship to the amended case Patent applicant address: 3-9-4 Ginza, Chuo-ku, Tokyo Name:
Yoshizawa Lime Industry Co., Ltd. Representative: Hei Yoshizawa, left 4, Agent: 104 Address: 2-15-14 Tsukiji, Chuo-ku, Tokyo Column 6 of the detailed description of the invention in the specification, Contents of the amendment
Claims (4)
上のコロイド性含水ケイ酸アルミニウムとの緊密な混合
物からなる粒状消石灰。(1) Granular slaked lime consisting of an intimate mixture of 78-97% by weight of slaked lime and colloidal hydrated aluminum silicate with a swelling degree of 8 ml/2 g or more.
ロナイトまたはそれを主成分とするＮａ型ベントナイト
である特許請求の範囲第１項の粒状消石灰。(2) The granular slaked lime according to claim 1, wherein the colloidal hydrated aluminum silicate is montmorillonite or Na-type bentonite containing montmorillonite as a main component.
上のコロイド性含水ケイ酸アルミニウム３〜２２重量％
とを混合し、プレスして固化させた後、解砕し分級する
ことからなる粒状消石灰の製造方法。(3) 78-97% by weight of slaked lime and 3-22% by weight of colloidal hydrated aluminum silicate with a swelling degree of 8ml/2g or more
A method for producing granular slaked lime, which comprises mixing, pressing and solidifying, and then crushing and classifying.
め１００〜２００℃の温度に加熱することにより乾燥さ
せて使用する特許請求の範囲第３項の粒状消石灰の製造
方法。(4) The method for producing granular slaked lime according to claim 3, wherein colloidal hydrated aluminum silicate is dried by heating it in advance to a temperature of 100 to 200°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11633487A JPS63282116A (en) | 1987-05-13 | 1987-05-13 | Granular calcium hydroxide and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11633487A JPS63282116A (en) | 1987-05-13 | 1987-05-13 | Granular calcium hydroxide and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63282116A true JPS63282116A (en) | 1988-11-18 |
| JPH054339B2 JPH054339B2 (en) | 1993-01-19 |
Family
ID=14684383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11633487A Granted JPS63282116A (en) | 1987-05-13 | 1987-05-13 | Granular calcium hydroxide and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63282116A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6436891B1 (en) | 1999-02-19 | 2002-08-20 | Mionix Corporation | Adduct having an acidic solution of sparingly-soluble group IIA complexes |
| US7323436B2 (en) * | 1999-02-19 | 2008-01-29 | Mionix Corporation | Adduct having an acidic solution of sparingly-soluble group IIA complexes |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4932503B2 (en) * | 2006-02-13 | 2012-05-16 | ジェイカムアグリ株式会社 | Disintegrating granular phosphate medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569689A (en) * | 1978-11-18 | 1980-05-26 | Shozo Aso | Soil neutralizer |
-
1987
- 1987-05-13 JP JP11633487A patent/JPS63282116A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569689A (en) * | 1978-11-18 | 1980-05-26 | Shozo Aso | Soil neutralizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6436891B1 (en) | 1999-02-19 | 2002-08-20 | Mionix Corporation | Adduct having an acidic solution of sparingly-soluble group IIA complexes |
| US7323436B2 (en) * | 1999-02-19 | 2008-01-29 | Mionix Corporation | Adduct having an acidic solution of sparingly-soluble group IIA complexes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054339B2 (en) | 1993-01-19 |
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