JPH0550455B2 - - Google Patents
Info
- Publication number
- JPH0550455B2 JPH0550455B2 JP60103167A JP10316785A JPH0550455B2 JP H0550455 B2 JPH0550455 B2 JP H0550455B2 JP 60103167 A JP60103167 A JP 60103167A JP 10316785 A JP10316785 A JP 10316785A JP H0550455 B2 JPH0550455 B2 JP H0550455B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- quicklime
- coated
- particles
- hydrophobic substance
- 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.)
- Expired - Lifetime
Links
- 239000002245 particle Substances 0.000 claims description 36
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 29
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 29
- 239000004571 lime Substances 0.000 claims description 29
- 239000000126 substance Substances 0.000 claims description 22
- 230000002209 hydrophobic effect Effects 0.000 claims description 21
- 150000001639 boron compounds Chemical class 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 43
- 239000000292 calcium oxide Substances 0.000 description 21
- 235000012255 calcium oxide Nutrition 0.000 description 21
- 238000010521 absorption reaction Methods 0.000 description 17
- 229910021538 borax Inorganic materials 0.000 description 8
- 229920002545 silicone oil Polymers 0.000 description 8
- 235000010339 sodium tetraborate Nutrition 0.000 description 8
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 8
- 238000006703 hydration reaction Methods 0.000 description 7
- 229940057995 liquid paraffin Drugs 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- -1 polyoxyethylene Polymers 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002274 desiccant Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001079 digestive effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 235000021485 packed food Nutrition 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 241001125046 Sardina pilchardus Species 0.000 description 1
- 241000269821 Scombridae Species 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 235000019383 crystalline wax Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010460 hemp oil Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000020640 mackerel Nutrition 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 235000019512 sardine Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010698 whale oil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は発熱温度が低く、しかも消化開始時間
が遅延された石灰粒子に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to lime particles having a low exothermic temperature and a delayed start of digestion time.
［従来の技術］
石灰は、従来から安価でしかも入手が容易であ
るため、産業界の広い分野にわたつて利用されて
おり、たとえばコンクリートの乾燥収縮補償用膨
張セメント、軽量気泡コンクリート製品、廃水処
理時のPH調整剤、コンクリート破壊工法用薬剤、
包装食品用乾燥剤など数多くの分野で使用されて
いるが、反応式（）：
CaO＋H2Ｏ→Ca（OH）2＋15.2Kcal （）
で示されるように水和反応時に大量の熱が急激に
発生するという問題がある。[Prior Art] Lime has traditionally been used in a wide range of industrial fields because it is inexpensive and easily available, such as expanding cement to compensate for drying shrinkage of concrete, lightweight cellular concrete products, and waste water treatment. PH adjustment agent, agent for concrete destruction method,
It is used in many fields such as desiccants for packaged foods, but as shown by the reaction formula (): CaO + H 2 O → Ca (OH) 2 + 15.2Kcal (), a large amount of heat is rapidly generated during the hydration reaction. There is a problem that occurs.
そこで、このような問題を解決するために、従
来から数多くの提案がなされている。 Therefore, in order to solve such problems, many proposals have been made in the past.
たとえば、軽量気泡コンクリート製品の分野に
おいて、生石灰がミキサー内部で急激に消化し、
原料がミキサー外に溢れ出るなどのトラブルを防
ぐために、消化遅延剤としてホスホノアルカンカ
ルボン酸や糖リン酸などを用いることが提案され
ているが（特公昭57−10060号公報）、これらの消
化遅延剤は高価であり、しかも容易に入手しうる
ものではない。 For example, in the field of lightweight aerated concrete products, quicklime is rapidly digested inside the mixer and
In order to prevent problems such as raw materials overflowing outside the mixer, it has been proposed to use phosphonoalkane carboxylic acids, sugar phosphoric acids, etc. as digestion retardants (Japanese Patent Publication No. 10060/1983), but these digestion Retarders are expensive and not readily available.
また、コンクリート破壊工法の分野において、
コンクリートへ注入した生石灰スラリーの温度が
100℃以上になつて噴出するのを防ぐために消化
遅延剤としてポリオキシエチレン系リン酸エステ
ルを用いることが提案されているが（特開昭57−
119851号公報）、実際には短時間のうちに、100℃
以上の高温になり、あまり効果的な手段ではな
い。 In addition, in the field of concrete destruction methods,
The temperature of quicklime slurry poured into concrete is
It has been proposed to use polyoxyethylene-based phosphate ester as a digestion retardant to prevent eruption when the temperature exceeds 100°C (Japanese Patent Laid-Open No. 1983-1999).
(No. 119851), in fact it can reach 100℃ in a short period of time.
This is not a very effective method as it will reach high temperatures.
また、生石灰の消化反応を遅延させるために、
たとえばパラフインなどの被覆形成物を生石灰に
被覆する方法が提案されているが（特開昭49−
40299号公報、特開昭51−29397号公報）、未だ生
石灰の消化反応を遅延させるのには充分でなく、
発熱すれば短時間で高温になるという問題があ
る。 In addition, to delay the digestive reaction of quicklime,
For example, a method has been proposed in which quicklime is coated with a coating material such as paraffin (Japanese Unexamined Patent Application Publication No. 1983-1979-
40299, Japanese Patent Application Laid-Open No. 51-29397), it is still not sufficient to delay the digestive reaction of quicklime.
There is a problem that when heat is generated, the temperature becomes high in a short period of time.
また包装食品の分野では従来より内容物の乾燥
状態を保持するために吸湿能力が大きく、しかも
安価で容易に入手しうるので生石灰が多用されて
いるが、使用ずみの生石灰乾燥袋をごみ箱に捨て
たところ、この乾燥袋が破れて出てきた生石灰と
生ゴミなどに含まれる水分とが反応して大量の熱
が発生し、発火して火災となつた例、同じような
原因で消費者が火傷を負つた例などが報告されて
おり、これらの問題を解決するために機械的強度
にすぐれた材質を使用した袋の研究がされてい
る。たとえば、通気性を有するが、微粉末の石灰
の通過を遮断する材料からなる包材の表面にポリ
オレフイン層およびメツシユ状強化材料が順次積
層され、前記ポリオレフイン層にはそれを貫通す
る孔または引掻孔が穿設されている破れにくい通
気性包装材（実公昭59−36438号公報）や、セル
ロース系の通気性外層材と熱融着性プラスチツク
フイルムからなる乾燥剤用包装材（実公昭58−
45249号公報）が提案されている。 Also, in the field of packaged foods, quicklime has traditionally been widely used in order to keep the contents dry because it has a high moisture absorption capacity, is cheap, and is easily available. However, there have been cases where the quicklime that came out when the drying bag was torn and the moisture contained in the garbage reacted with each other, generating a large amount of heat and igniting, resulting in a fire. There have been reports of people suffering from burns, and to solve these problems, research is being carried out on bags made of materials with excellent mechanical strength. For example, a polyolefin layer and a mesh-like reinforcing material are sequentially laminated on the surface of a packaging material made of a material that is breathable but blocks the passage of finely powdered lime, and the polyolefin layer has holes or scratches passing through it. A tear-resistant breathable packaging material with perforated holes (Japanese Utility Model Publication No. 59-36438) and a desiccant packaging material consisting of a cellulose-based breathable outer layer material and a heat-adhesive plastic film (Utility Model Publication No. 58-36438)
45249) has been proposed.
しかし、袋の構造やその機械的強度を改善した
としても何らかの原因により袋が破れれば生石灰
が外部に出るので根本的な問題の解決策とはなら
ない。 However, even if the structure of the bag and its mechanical strength are improved, if the bag ruptures for some reason, quicklime will leak out, so it will not solve the fundamental problem.
［発明が解決しようとする問題点］
そこで、本発明者らは、前記従来技術に鑑みて
生石灰が水分と反応して急激に大量の熱が発生す
るのを防止するべく鋭意研究を重ねたところ、意
外なことにホウ素化合物を添加した疎水性物質を
生石灰粒子に被覆したばあいには、発熱温度が低
く、しかも消化開始時間が遅延された石灰粒子が
えられることを見出し、本発明を完成するにいた
つた。[Problems to be Solved by the Invention] Therefore, in view of the above-mentioned prior art, the present inventors have conducted extensive research in order to prevent quicklime from reacting with moisture and rapidly generating a large amount of heat. Surprisingly, they discovered that if quicklime particles were coated with a hydrophobic substance containing a boron compound, lime particles with a lower exothermic temperature and a delayed digestion start time could be obtained, and the present invention was completed. It was time to do it.
［問題点を解決するための手段］
本発明は、その表面に疎水性物質を被覆した石
灰粒子において、前記疎水性物質にホウ素化合物
を石灰粒子100重量部に対して10〜40重量部添加
したことを特徴とする石灰粒子に関する。[Means for Solving the Problems] The present invention provides lime particles whose surfaces are coated with a hydrophobic substance, in which 10 to 40 parts by weight of a boron compound is added to the hydrophobic substance based on 100 parts by weight of the lime particles. The present invention relates to lime particles characterized by:
［実施例］
本発明の石灰粒子は、疎水性物質を表面に被覆
した石灰粒子であり、前記疎水性物質に石灰粒子
100部（重量部、以下同様）に対してホウ素化合
物10〜40部を添加したものである。[Example] The lime particles of the present invention are lime particles whose surfaces are coated with a hydrophobic substance, and the lime particles are coated with a hydrophobic substance.
10 to 40 parts of a boron compound is added to 100 parts (parts by weight, the same applies hereinafter).
前記石灰とは、カーク・オスマー「エンサイク
ロペデイア オブ ケミカルテクノロジー」
（1967年ニユーヨーク、ジヨーン、ウイリー・サ
ンズ社発行、第２版）の第12巻、415〜419頁に記
載されている、高カルシウム含量石灰（CaO）、
ドロマイテイツク石灰（CaO・MgO）などであ
り、部分的に水和した状態のものでもよく、また
形状としては粉末状、顆粒状、塊状のいずれでも
よく、本発明はこれらのみに限定されるものでは
ない。 The lime is described in Kirk Othmer's "Encyclopedia of Chemical Technology"
High calcium content lime (CaO), as described in Vol.
Dolomites lime (CaO/MgO), etc., may be in a partially hydrated state, and may be in the form of powder, granules, or blocks; the present invention is not limited to these. do not have.
前記石灰粒子の被覆に用いられる疎水性物質と
しては、たとえば綿実油、麻実油、大豆油、アマ
ニ油、ヒマシ油、鯨油、イワシ油、サバ油などの
動植物性油、流動パラフイン、パラフインワツク
ス、マイクロクリスタリンワツクスや、ステアリ
ン酸、オレイン酸などの高級脂肪酸およびそれら
のアミド、メチルハイドロジエンポリシロキサ
ン、ジメチルポリシロキサン、メチルフエニルポ
リシロキサンなどのシリコーン、ポリブテン、液
状ポリブタジエン、ポリ酢酸ビニル、ポリ塩化ビ
ニル、ポリアクリレートなどの有機高分子化合物
などがあげられ、本発明においてはいずれを用い
てもよく、また本発明はこれらのみに限定される
ものではない。 Hydrophobic substances used to coat the lime particles include, for example, animal and vegetable oils such as cottonseed oil, hempseed oil, soybean oil, linseed oil, castor oil, whale oil, sardine oil, and mackerel oil, liquid paraffin, paraffin wax, and microorganisms. Crystalline waxes, higher fatty acids such as stearic acid and oleic acid and their amides, silicones such as methylhydrodiene polysiloxane, dimethyl polysiloxane, and methyl phenyl polysiloxane, polybutene, liquid polybutadiene, polyvinyl acetate, and polyvinyl chloride. , organic polymer compounds such as polyacrylate, etc., and any of them may be used in the present invention, and the present invention is not limited only to these.
前記疎水性物質は、被覆すべき石灰粒子100部
に対して0.5〜25部の割合でたとえばヘンシエル
ミキサー、スプレーなどの通常の被覆方法で被覆
されるが、前記疎水性物質の種類によつてはその
被覆量は若干異なる。 The hydrophobic substance is coated at a ratio of 0.5 to 25 parts per 100 parts of the lime particles to be coated using a conventional coating method such as a Henschel mixer or spray, but depending on the type of the hydrophobic substance, The amount of coverage differs slightly.
前記疎水性物質がたとえばシリコーンオイルで
あるばあいには、被覆すべき石灰粒子100重量部
に対して0.5〜25部、好ましくは0.5〜20部の割合
で用いられる。前記シリコーンオイルの被覆量が
0.5部未満のばあいには、水和反応時の発熱が充
分に抑制されず、また25部をこえるばあいには、
水和反応時の発熱抑制の効果を充分に期待するこ
とができないばかりか、粒子表面がシリコーンオ
イルで濡れた状態になつたり、粒子が大きな塊状
となる傾向がある。 When the hydrophobic substance is silicone oil, for example, it is used in an amount of 0.5 to 25 parts, preferably 0.5 to 20 parts, based on 100 parts by weight of lime particles to be coated. The amount of silicone oil covered is
If it is less than 0.5 parts, the heat generated during the hydration reaction will not be sufficiently suppressed, and if it exceeds 25 parts,
Not only cannot a sufficient effect of suppressing heat generation during the hydration reaction be expected, but also the particle surfaces tend to become wet with silicone oil and the particles tend to form large lumps.
また、前記疎水性物質には、被覆効率の向上の
ために増量剤や希釈剤を用いることができる。こ
れら増量剤や希釈剤としては前記疎水性物質とし
て例示したものを添加することができる。このば
あい、前記増量剤や希釈剤の添加量は、石灰粒子
100部に対して疎水性物質との合計量が25部以下
となるように調整するのが好ましい。かかる添加
量は、25部をこえるばあいには、水和反応時の発
熱抑制の効果の増大を充分に期待することができ
ないばかりでなく、粒子表面が濡れた状態になつ
たり、粒子が大きな塊状となる傾向がある。 Further, an extender or a diluent can be used in the hydrophobic substance to improve coating efficiency. As these extenders and diluents, those exemplified as the hydrophobic substances can be added. In this case, the amount of the filler or diluent added is based on the lime particles.
It is preferable to adjust the total amount including the hydrophobic substance to 25 parts or less based on 100 parts. If the amount added exceeds 25 parts, not only will it not be possible to sufficiently increase the effect of suppressing heat generation during the hydration reaction, but the particle surface may become wet or the particles may become large. It tends to form clumps.
また、本発明においては、発熱抑制剤としてホ
ウ酸ナトリウム、ホウ酸アンモニウムなどのホウ
酸塩やホウ酸などのホウ素化合物が石灰粒子100
部に対して10〜40部の割合となるように疎水性物
質に添加して用いられる。前記ホウ素化合物の添
加量が10部未満では添加した効果が現れず、石灰
粒子の発熱温度が高くなり、また40部をこえるば
あいには水和反応時の発熱抑制の効果の増大を期
待することができないないので好ましくない。 In addition, in the present invention, borates such as sodium borate and ammonium borate, and boron compounds such as boric acid are used as heat generation suppressants.
It is used by adding it to a hydrophobic substance at a ratio of 10 to 40 parts. If the amount of the boron compound added is less than 10 parts, the added effect will not appear and the exothermic temperature of the lime particles will become high, and if it exceeds 40 parts, it is expected that the effect of suppressing heat generation during the hydration reaction will increase. I don't like it because I can't do it.
以下に本発明を実施例に基づいてさらに詳細に
説明するが、本発明は、かかる実施例のみに限定
されるものではない。 EXAMPLES The present invention will be explained in more detail below based on Examples, but the present invention is not limited only to these Examples.
実施例 １
通常市販されている生石灰粒子（最大粒径が３
〜５mm程度のもの）100部に対してシリコーンオ
イル（信越化学工業(株)製KF99）１部と流動パラ
フイン19部とからなる溶液を充分に混合し、さら
に無水ホウ酸ナトリウム15部を混合したのち、ヘ
ンシエルミキサー（(株)三井三池製作所製FM10B）
を用いて約10分間かけて混合して生石灰粒子表面
に被覆した。Example 1 Usually commercially available quicklime particles (with a maximum particle size of 3
A solution consisting of 1 part of silicone oil (KF99 manufactured by Shin-Etsu Chemical Co., Ltd.) and 19 parts of liquid paraffin was thoroughly mixed with 100 parts of the material (about 5 mm), and 15 parts of anhydrous sodium borate was further mixed. Later, Hensiel mixer (FM10B manufactured by Mitsui Miike Manufacturing Co., Ltd.)
The mixture was mixed for about 10 minutes using a vacuum cleaner to coat the surface of the quicklime particles.
えられた無水ホウ酸ナトリウムを添加した疎水
性物質を被覆した石灰粒子の物性として発熱温度
および吸湿率を以下の方法にしたがつて測定し
た。 The physical properties of the obtained lime particles coated with a hydrophobic substance to which anhydrous sodium borate was added were measured for exothermic temperature and moisture absorption rate according to the following method.
（発熱温度の測定）
第３図に示すように発泡スチロール容器１の内
面にグラスウール２を貼りつけたのち、厚さ0.5
mmの銅板３を置き、その上に発熱温度を測定する
ための熱電対５をのせ、さらにその上に厚さ0.5
mmの銅板４を置く。熱電対５は測定した温度を記
録するために温度記録計８に接続する。(Measurement of exothermic temperature) As shown in Figure 3, after pasting glass wool 2 on the inner surface of the Styrofoam container 1,
A copper plate 3 with a thickness of 0.5 mm is placed, a thermocouple 5 for measuring the heat generation temperature is placed on top of the copper plate 3, and a 0.5 mm thick copper plate is placed on top of it.
Place the mm copper plate 4. Thermocouple 5 is connected to temperature recorder 8 to record the measured temperature.
上記のようにセツトされた発熱温度測定装置内
に試料６100ｇを厚さが50mmの層となるように投
入し、その上にろ紙７を置く。 6100 g of the sample was placed in a layer with a thickness of 50 mm into the exothermic temperature measuring device set up as described above, and the filter paper 7 was placed on top of it.
つぎにこの装置の上方から滴下ロート９から水
１０75mlを約100分間かけて滴下させ、この間の
石灰粒子の温度変化を測定する。 Next, 1075 ml of water is dropped from the dropping funnel 9 from above the apparatus over a period of about 100 minutes, and the temperature change of the lime particles during this time is measured.
その結果を第１図に示す。 The results are shown in FIG.
（吸湿率の測定）
石灰粒子100ｇを気温20℃の大気中で放置した
ときの吸湿率を測定する。(Measurement of moisture absorption rate) Measure the moisture absorption rate when 100g of lime particles are left in the atmosphere at a temperature of 20°C.
なお、吸湿率は次式にしたがつて算出する。 In addition, the moisture absorption rate is calculated according to the following formula.
吸湿率（％）＝（放置後の重量）−（吸湿前の重
量100ｇ）／（吸湿前の重量100ｇ）×100
その測定結果を第２図に示す。 Moisture absorption rate (%) = (Weight after standing) - (Weight before moisture absorption 100g) / (Weight before moisture absorption 100g) x 100 The measurement results are shown in FIG.
実施例 ２
実施例１において、シリコーンオイル１部と流
動パラフイン19部のかわりにステアリン酸（試薬
１級）14部および無水ホウ酸ナトリウム（試薬１
級）29部を用いたほかは、実施例１と同様の方法
により、生石灰粒子表面への被覆を行なつた。Example 2 In Example 1, 14 parts of stearic acid (Reagent 1) and anhydrous sodium borate (Reagent 1) were used instead of 1 part of silicone oil and 19 parts of liquid paraffin.
The surfaces of quicklime particles were coated in the same manner as in Example 1, except that 29 parts of quicklime particles were used.
えられた無水ホウ酸ナトリウムを添加した疎水
性物質を被覆した石灰粒子の発熱温度および吸湿
率の測定を実施例１と同様の方法で行なつた。 The exothermic temperature and moisture absorption rate of the obtained lime particles coated with a hydrophobic substance to which anhydrous sodium borate was added were measured in the same manner as in Example 1.
その結果をそれぞれ第１図および第２図に示
す。 The results are shown in FIG. 1 and FIG. 2, respectively.
比較例 １
実施例１で用いた生石灰のみの発熱温度および
吸湿率の測定を実施例１と同様の方法で行なつ
た。Comparative Example 1 The exothermic temperature and moisture absorption rate of only the quicklime used in Example 1 were measured in the same manner as in Example 1.
その結果をそれぞれ第１図および第２図に示
す。 The results are shown in FIG. 1 and FIG. 2, respectively.
比較例 ２
実施例１においてシリコーンオイルおよび無水
ホウ酸ナトリウムを使用せず、流動パラフイン20
部を用いたほかは、実施例１と同様の方法によ
り、生石灰表面に被覆し、発熱温度および吸湿率
の測定を行なつた。Comparative Example 2 In Example 1, silicone oil and anhydrous sodium borate were not used, and liquid paraffin 20
The surface of quicklime was coated in the same manner as in Example 1, except that the sample was used, and the exothermic temperature and moisture absorption rate were measured.
その結果をそれぞれ第１図および第２図に示
す。 The results are shown in FIG. 1 and FIG. 2, respectively.
比較例 ３
実施例１の組成のものに無水ホウ酸ナトリウム
15部を添加しなかつたほかは実施例１と同様の方
法により生石灰粒子表面への被覆を行なつた。Comparative Example 3 Anhydrous sodium borate was added to the composition of Example 1.
The surface of quicklime particles was coated in the same manner as in Example 1 except that 15 parts of lime was not added.
えられた疎水性物質を被覆した石灰粒子の発熱
温度および吸湿率の測定を実施例１と同様の方法
で行なつた。 The exothermic temperature and moisture absorption rate of the obtained lime particles coated with a hydrophobic substance were measured in the same manner as in Example 1.
その結果をそれぞれ第１図および第２図に示
す。 The results are shown in FIG. 1 and FIG. 2, respectively.
比較例 ４
実施例１において、シリコーンオイル１部と流
動パラフイン19部のかわりにシリコーンオイル３
部と流動パラフイン17部を用い、無水ホウ酸ナト
リウムを添加しなかつたほかは、実施例１と同様
の方法により生石灰粒子表面への被覆を行なつ
た。Comparative Example 4 In Example 1, 3 parts of silicone oil was used instead of 1 part of silicone oil and 19 parts of liquid paraffin.
The surfaces of quicklime particles were coated in the same manner as in Example 1, except that 17 parts of liquid paraffin and 17 parts of liquid paraffin were used, and anhydrous sodium borate was not added.
えられた疎水性物質を被覆した石灰粒子の発熱
温度および吸湿率の測定を実施例１と同様の方法
で行なつた。 The exothermic temperature and moisture absorption rate of the obtained lime particles coated with a hydrophobic substance were measured in the same manner as in Example 1.
その結果をそれぞれ第１図および第２図に示
す。 The results are shown in FIG. 1 and FIG. 2, respectively.
発熱温度の測定結果から、本発明のホウ素化合
物を添加した疎水性物質を被覆した石灰粒子は、
水和反応速度が遅延されるので、その発熱温度が
低下することがわかる。 From the measurement results of the exothermic temperature, the lime particles coated with the hydrophobic substance to which the boron compound of the present invention was added,
It can be seen that as the hydration reaction rate is retarded, the exothermic temperature is lowered.
また、吸湿率の測定結果から、本発明のホウ素
化合物を添加した疎水性物質を被覆した石灰粒子
は、その吸湿能力が従来の生石灰と比べてほとん
ど差異がなく、乾燥剤として充分に使用しうるも
のであることがわかる。 Furthermore, the moisture absorption rate measurement results show that the lime particles coated with the hydrophobic substance containing the boron compound of the present invention have almost no difference in moisture absorption ability compared to conventional quicklime, and can be used satisfactorily as a desiccant. I can see that it is something.
［発明の効果］
本発明の石灰粒子は、従来の生石灰と同等の吸
湿能力を有し、しかも水和反応速度を遅延すると
同時に発熱温度が低いので、従来の生石灰がも
つ、水分と反応して急激に大量の熱を発するとい
う問題を解決するものである。[Effects of the Invention] The lime particles of the present invention have the same moisture absorption ability as conventional quicklime, and also have a slow hydration reaction rate and a low exothermic temperature, so they do not react with moisture, which conventional quicklime has. This solves the problem of sudden generation of large amounts of heat.
第１図および第２図は、本発明の実施例および
比較例で行なつた、それぞれ発熱温度の測定結果
および吸湿率の測定結果を示すグラフである。第
３図は本発明の実施例および比較例で用いた発熱
温度を測定するための装置の概略説明図である。
FIG. 1 and FIG. 2 are graphs showing the measurement results of the exothermic temperature and the moisture absorption rate, respectively, conducted in Examples and Comparative Examples of the present invention. FIG. 3 is a schematic explanatory diagram of an apparatus for measuring exothermic temperature used in Examples and Comparative Examples of the present invention.
Claims (1)
おいて、前記疎水性物質にホウ素化合物を石灰粒
子100重量部に対して10〜40重量部添加したこと
を特徴とする石灰粒子。1. Lime particles whose surfaces are coated with a hydrophobic substance, characterized in that 10 to 40 parts by weight of a boron compound is added to the hydrophobic substance based on 100 parts by weight of the lime particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316785A JPS61261242A (en) | 1985-05-15 | 1985-05-15 | Lime particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316785A JPS61261242A (en) | 1985-05-15 | 1985-05-15 | Lime particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61261242A JPS61261242A (en) | 1986-11-19 |
| JPH0550455B2 true JPH0550455B2 (en) | 1993-07-29 |
Family
ID=14346948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10316785A Granted JPS61261242A (en) | 1985-05-15 | 1985-05-15 | Lime particle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61261242A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1012930A3 (en) * | 1999-10-08 | 2001-06-05 | Lhoist Rech & Dev Sa | Product calcium oxide and manufacturing method thereof. |
| JP4498560B2 (en) * | 2000-08-03 | 2010-07-07 | 電気化学工業株式会社 | Cement quick-setting agent |
| JP5022931B2 (en) * | 2008-01-31 | 2012-09-12 | 有限会社坂本石灰工業所 | Desiccant raw material |
| JP5113610B2 (en) * | 2008-04-25 | 2013-01-09 | 電気化学工業株式会社 | Cement admixture and cement composition for mass concrete |
| JP2012017213A (en) * | 2010-07-06 | 2012-01-26 | Kawai Sekkai Kogyo Kk | Expansive solidifying material |
| KR102165017B1 (en) * | 2013-01-10 | 2020-10-13 | 우베 마테리알즈 가부시키가이샤 | Water absorbent and method for producing same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940299A (en) * | 1972-08-28 | 1974-04-15 | ||
| JPS4974673A (en) * | 1972-11-18 | 1974-07-18 | ||
| JPS5129397A (en) * | 1975-07-04 | 1976-03-12 | Okutama Kogyo Kk | Shokahannoo chensaseta shutoshite doshitsuanteiyoseisetsukaino seizohoho |
-
1985
- 1985-05-15 JP JP10316785A patent/JPS61261242A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940299A (en) * | 1972-08-28 | 1974-04-15 | ||
| JPS4974673A (en) * | 1972-11-18 | 1974-07-18 | ||
| JPS5129397A (en) * | 1975-07-04 | 1976-03-12 | Okutama Kogyo Kk | Shokahannoo chensaseta shutoshite doshitsuanteiyoseisetsukaino seizohoho |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61261242A (en) | 1986-11-19 |
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