JP5017752B2 - Composition of strontium compound or barium compound - Google Patents
Composition of strontium compound or barium compound Download PDFInfo
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- JP5017752B2 JP5017752B2 JP2001170673A JP2001170673A JP5017752B2 JP 5017752 B2 JP5017752 B2 JP 5017752B2 JP 2001170673 A JP2001170673 A JP 2001170673A JP 2001170673 A JP2001170673 A JP 2001170673A JP 5017752 B2 JP5017752 B2 JP 5017752B2
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- 150000001553 barium compounds Chemical class 0.000 title claims description 13
- 150000003438 strontium compounds Chemical group 0.000 title claims description 12
- 239000000203 mixture Substances 0.000 title claims description 6
- 239000002245 particle Substances 0.000 claims description 35
- 239000010419 fine particle Substances 0.000 claims description 15
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims description 15
- 238000007873 sieving Methods 0.000 claims description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 22
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 21
- 239000000377 silicon dioxide Substances 0.000 description 12
- VOVZXURTCKPRDQ-CQSZACIVSA-N n-[4-[chloro(difluoro)methoxy]phenyl]-6-[(3r)-3-hydroxypyrrolidin-1-yl]-5-(1h-pyrazol-5-yl)pyridine-3-carboxamide Chemical compound C1[C@H](O)CCN1C1=NC=C(C(=O)NC=2C=CC(OC(F)(F)Cl)=CC=2)C=C1C1=CC=NN1 VOVZXURTCKPRDQ-CQSZACIVSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- HFGHRUCCKVYFKL-UHFFFAOYSA-N 4-ethoxy-2-piperazin-1-yl-7-pyridin-4-yl-5h-pyrimido[5,4-b]indole Chemical compound C1=C2NC=3C(OCC)=NC(N4CCNCC4)=NC=3C2=CC=C1C1=CC=NC=C1 HFGHRUCCKVYFKL-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XULSCZPZVQIMFM-IPZQJPLYSA-N odevixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)N[C@@H](CC)C(O)=O)C=3C=CC(O)=CC=3)C=C2S(=O)(=O)NC(CCCC)(CCCC)CN1C1=CC=CC=C1 XULSCZPZVQIMFM-IPZQJPLYSA-N 0.000 description 4
- 229910001631 strontium chloride Inorganic materials 0.000 description 4
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 4
- UUCCCPNEFXQJEL-UHFFFAOYSA-L strontium dihydroxide Chemical compound [OH-].[OH-].[Sr+2] UUCCCPNEFXQJEL-UHFFFAOYSA-L 0.000 description 4
- 229910001866 strontium hydroxide Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- BIIBYWQGRFWQKM-JVVROLKMSA-N (2S)-N-[4-(cyclopropylamino)-3,4-dioxo-1-[(3S)-2-oxopyrrolidin-3-yl]butan-2-yl]-2-[[(E)-3-(2,4-dichlorophenyl)prop-2-enoyl]amino]-4,4-dimethylpentanamide Chemical compound CC(C)(C)C[C@@H](C(NC(C[C@H](CCN1)C1=O)C(C(NC1CC1)=O)=O)=O)NC(/C=C/C(C=CC(Cl)=C1)=C1Cl)=O BIIBYWQGRFWQKM-JVVROLKMSA-N 0.000 description 2
- DWKNOLCXIFYNFV-HSZRJFAPSA-N 2-[[(2r)-1-[1-[(4-chloro-3-methylphenyl)methyl]piperidin-4-yl]-5-oxopyrrolidine-2-carbonyl]amino]-n,n,6-trimethylpyridine-4-carboxamide Chemical compound CN(C)C(=O)C1=CC(C)=NC(NC(=O)[C@@H]2N(C(=O)CC2)C2CCN(CC=3C=C(C)C(Cl)=CC=3)CC2)=C1 DWKNOLCXIFYNFV-HSZRJFAPSA-N 0.000 description 2
- UXHQLGLGLZKHTC-CUNXSJBXSA-N 4-[(3s,3ar)-3-cyclopentyl-7-(4-hydroxypiperidine-1-carbonyl)-3,3a,4,5-tetrahydropyrazolo[3,4-f]quinolin-2-yl]-2-chlorobenzonitrile Chemical compound C1CC(O)CCN1C(=O)C1=CC=C(C=2[C@@H]([C@H](C3CCCC3)N(N=2)C=2C=C(Cl)C(C#N)=CC=2)CC2)C2=N1 UXHQLGLGLZKHTC-CUNXSJBXSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- AYOOGWWGECJQPI-NSHDSACASA-N n-[(1s)-1-(5-fluoropyrimidin-2-yl)ethyl]-3-(3-propan-2-yloxy-1h-pyrazol-5-yl)imidazo[4,5-b]pyridin-5-amine Chemical compound N1C(OC(C)C)=CC(N2C3=NC(N[C@@H](C)C=4N=CC(F)=CN=4)=CC=C3N=C2)=N1 AYOOGWWGECJQPI-NSHDSACASA-N 0.000 description 2
- KMIOJWCYOHBUJS-HAKPAVFJSA-N vorolanib Chemical compound C1N(C(=O)N(C)C)CC[C@@H]1NC(=O)C1=C(C)NC(\C=C/2C3=CC(F)=CC=C3NC\2=O)=C1C KMIOJWCYOHBUJS-HAKPAVFJSA-N 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- NYNZQNWKBKUAII-KBXCAEBGSA-N (3s)-n-[5-[(2r)-2-(2,5-difluorophenyl)pyrrolidin-1-yl]pyrazolo[1,5-a]pyrimidin-3-yl]-3-hydroxypyrrolidine-1-carboxamide Chemical compound C1[C@@H](O)CCN1C(=O)NC1=C2N=C(N3[C@H](CCC3)C=3C(=CC=C(F)C=3)F)C=CN2N=C1 NYNZQNWKBKUAII-KBXCAEBGSA-N 0.000 description 1
- MCRWZBYTLVCCJJ-DKALBXGISA-N [(1s,3r)-3-[[(3s,4s)-3-methoxyoxan-4-yl]amino]-1-propan-2-ylcyclopentyl]-[(1s,4s)-5-[6-(trifluoromethyl)pyrimidin-4-yl]-2,5-diazabicyclo[2.2.1]heptan-2-yl]methanone Chemical compound C([C@]1(N(C[C@]2([H])C1)C(=O)[C@@]1(C[C@@H](CC1)N[C@@H]1[C@@H](COCC1)OC)C(C)C)[H])N2C1=CC(C(F)(F)F)=NC=N1 MCRWZBYTLVCCJJ-DKALBXGISA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明はストロンチウム化合物又はバリウム化合物の固結防止に関し、詳しくは、微粒子珪酸を添加混合する組成物に関する。
【０００２】
【従来の技術】
ストロンチウム化合物又はバリウム化合物の結晶は従来では製造後の保管の経時的な変化を受け徐徐に固結が起こり、更に塊状にまで成長し、取扱いが困難な状態であった。
【０００３】
この原因となる固結及び凝集現象は粒子の接触点で溶解・析出を繰返し液橋を作り、この液橋が温湿度作用によって固橋となり、結合するためと考えられている。固結防止法としてはフラッシングのような粒子の表面改質及び環境のコントロールがあるがそれに応じた設備増強等の費用がかかる問題を抱えていた。
【０００４】
【発明が解決しようとする課題】
本発明は上述したような問題を解決するためになされたものであって、ストロンチウム化合物又はバリウム化合物に固結防止剤を少量添加混合し、容易に効果的に固結を防止し、長期保管を可能にする組成物を提供することにある。
【０００５】
【課題を解決するための手段】
本発明は、ストロンチウム化合物又はバリウム化合物に、比表面積が１００〜４００m 2 /gである微粒子珪酸を０．５〜５．０重量％添加混合するものであって、前記ストロンチウム化合物又は前記バリウム化合物が、硝酸塩、水酸化物または塩化物であり、前記ストロンチウム化合物又はバリウム化合物の粒子の篩分による平均粒子径が１４７〜４００μmであることによりその目的を達する。
【０００６】
以下本発明の構成要件について詳述する。本発明における微粒子珪酸は特に制限が無く、湿式法、乾式法によるものいずれでも良く、適宜選択し使用できるが比表面積が非常に大きな１００〜４００m 2 /gの微粉末状の微粒子珪酸である。
【０００７】
本発明における微粒子珪酸の含有率は、０．５重量％以上で所要の固結防止効果が発揮されるがあまり多量ではストロンチウム化合物又はバリウム化合物の純度の低下という問題が発生するため０．５〜５．０重量％である。
【０００８】
本発明のストロンチウム化合物又はバリウム化合物の篩分法による平均粒子経は１４７〜４００μｍが望ましい結果を与える。本発明におけるストロンチウム化合物又はバリウム化合物と微粒子珪酸の添加混合方法はそれぞれ所要量加えて常温で混合すれば良いのであり、公知の混合手段を適宜選択して行なえば良い。
【０００９】
【実施例】
以下に実施例および比較例として硝酸ストロンチウム、塩化ストロンチウム、水酸化ストロンチウム及び硝酸バリウムを挙げて本発明を説明するが、本発明はこの実施例により何ら限定されるものではない。
【００１０】
比較例−１硝酸ストロンチウム８０kg（平均粒子径１７μｍ）に微粒子珪酸（比表面積４０２m 2 /g）を１０．０重量％の比率である８．８９kgをリボンブレンダーで混合し、 紙袋３袋にそれぞれ２５kgを詰めた。それら紙袋１袋につき１４３gf／cm 2 の荷重を加え、常温常湿で放置し、４週間、８週間、１２週間後にそれぞれ１袋づつ開封し、固結防止効果の確認を行なった。
【００１１】
比較例−２硝酸ストロンチウム８０kg（平均粒子径１７μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を１５．０重量％の混合比率である１４．１２kg混合した以外は比較例−１と同様な試験を行なった。
【００１２】
比較例−３硝酸ストロンチウム８０kg（平均粒子径１４７μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−１と同様な試験を行なった。
【００１３】
実施例−１硝酸ストロンチウム８０kg（平均粒子径１４７μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．５重量％の混合比率である０．４０kgを混合した以外は比較例−１と同様な試験を行なった。
【００１４】
実施例−２硝酸ストロンチウム８０kg（平均粒子径１４７μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を５．０重量％の混合比率である４．２１kgを混合した以外は比較例−１と同様な試験を行なった。
【００１５】
比較例−４硝酸ストロンチウム８０kg（平均粒子径２８４μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−１と同様な試験を行なった。
【００１６】
実施例−３硝酸ストロンチウム８０kg（平均粒子径２８４μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を３．０重量％の混合比率である２．４７kgを混合した以外は比較例−１と同様な試験を行なった。
【００１７】
比較例−５硝酸ストロンチウム８０kg（平均粒子径３８３μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−１と同様な試験を行なった。
【００１８】
実施例−４硝酸ストロンチウム８０kg（平均粒子径３８３μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を１．０重量％の混合比率である０．８１kgを混合した以外は比較例−１と同様な試験を行なった。
【００１９】
比較例−６硝酸ストロンチウム（平均粒子径３８３μｍ）のみ２５kgを紙袋詰めにする以外は比較例−１と同様な試験を行なった。
【００２０】
実施例−５塩化ストロンチウム８０kg（平均粒子径３９５μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を０．５重量％の比率である０．４０kgをリボンブレンダーで混合し、 紙袋３袋にそれぞれ２５kgを詰めた。それら紙袋１袋につき１４３gf／cm 2 の荷重を加え、常温常湿で放置し、４週間、８週間、１２週間後にそれぞれ１袋づつ開封し、固結防止効果の確認を行なう試験を行なった。
【００２１】
実施例−６塩化ストロンチウム８０kg（平均粒子径３９５μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を１．０重量％の混合比率である０．８１kgを混合した以外は実施例−５と同様な試験を行なった。
【００２２】
比較例−７塩化ストロンチウム（平均粒子径３９５μｍ）のみ２５kgを紙袋詰めにする以外は実施例−５と同様な試験を行なった。
【００２３】
実施例−７水酸化ストロンチウム８０kg（平均粒子径３８１μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を０．５重量％の比率である０．４０kgをリボンブレンダーで混合し、 紙袋３袋にそれぞれ２５kgを詰めた。それら紙袋１袋につき１４３gf／cm 2 の荷重を加え、常温常湿で放置し、４週間、８週間、１２週間後にそれぞれ１袋づつ開封し、固結防止効果の確認を行なう試験を行なった。
【００２４】
実施例−８水酸化ストロンチウム８０kg（平均粒子径３８１μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を１．０重量％の混合比率である０．８１kg混合した以外は実施例−７と同様な試験を行なった。
【００２５】
比較例−８水酸化ストロンチウム（平均粒子径３８１μｍ）のみ２５kgを紙袋詰めにする以外は実施例−７と同様な試験を行なった。
【００２６】
比較例−９硝酸バリウム８０kg（平均粒子径１５μｍ）に微粒子珪酸（比表面積４０２m 2 /g）を１０．０重量％の比率である８．８９kgをリボンブレンダーで混合し、 紙袋３袋にそれぞれ２５kgを詰めた。それら紙袋１袋につき１４３gf／cm 2 の荷重を加え、常温常湿で放置し、４週間、８週間、１２週間後にそれぞれ１袋づつ開封し、固結防止効果の確認を行なう試験を行なった。
【００２７】
比較例−１０硝酸バリウム８０kg（平均粒子径１５μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を１５．０重量％の混合比率である１４．１２kgを混合した以外は比較例−９と同様な試験を行なった。
【００２８】
比較例−１１硝酸バリウム８０kg（平均粒子径１５８μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−９と同様な試験を行なった。
【００２９】
実施例−９硝酸バリウム８０kg（平均粒子径１５８μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．５重量％の混合比率である０．４０kgを混合した以外は比較例−９と同様な試験を行なった。
【００３０】
実施例−１０硝酸バリウム８０kg（平均粒子径１５８μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を５．０重量％の混合比率である４．２１kgを混合した以外は比較例−９と同様な試験を行なった。
【００３１】
比較例−１２硝酸バリウム８０kg（平均粒子径３１２μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−９と同様な試験を行なった。
【００３２】
実施例−１１硝酸バリウム８０kg（平均粒子径３１２μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を３．０重量％の混合比率である２．４７kgを混合した以外は比較例−９と同様な試験を行なった。
【００３３】
比較例−１３硝酸バリウム８０kg（平均粒子径３９６μｍ）に微粒子珪酸（比表面積１０７m 2 /g）を０．１重量％の混合比率である０．０８kgを混合した以外は比較例−９と同様な試験を行なった。
【００３４】
実施例−１２硝酸バリウム８０kg（平均粒子径３９６μｍ）に微粒子珪酸（比表面積２０６m 2 /g）を１．０重量％の混合比率である０．８１kgを混合した以外は比較例−９と同様な試験を行なった。
【００３５】
比較例−１４硝酸バリウム（平均粒子径３９６μｍ）のみ２５kgを紙袋詰めにする以外は比較例−９と同様な試験を行なった。
【００３６】
実施試験結果を表１にまとめた。
【００３７】
【表１】
◎：優 さらさらした状態であり、塊が認められない。
〇：良 塊が僅かに認められるが手で掴めない状態。
△：普通 塊が認められ、手で掴めるが容易に崩す事ができる状態。
×：劣る 塊の数が多く、しかも固い。
【００３８】
【発明の効果】
以上のように本発明の組成物はストロンチウム化合物又はバリウム化合物の固結を防止し、長期の保管を可能にするものである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to prevention of caking of a strontium compound or barium compound, and more particularly to a composition to which fine particle silicic acid is added and mixed.
[0002]
[Prior art]
Conventionally, crystals of a strontium compound or a barium compound are gradually solidified in response to a change in storage after production, and further grow into a lump and are difficult to handle.
[0003]
It is thought that the caking and agglomeration phenomenon that causes this is because a liquid bridge is formed by repeatedly dissolving and precipitating at the contact point of the particles, and this liquid bridge becomes a solid bridge due to the temperature and humidity action and bonds. As the anti-caking method, there are particle surface modification such as flushing and environmental control, but there is a problem that costs increase such as equipment enhancement corresponding to it.
[0004]
[Problems to be solved by the invention]
The present invention was made to solve the problems as described above, the anti-caking agent were added and mixed small amounts strontium beam compound or barium compound, to prevent easily effectively consolidated, long-term storage It is in providing the composition which enables this.
[0005]
[Means for Solving the Problems]
The present invention is a strontium compound or barium compound, in which 0.5 to 5.0% by weight of fine particle silicic acid having a specific surface area of 100 to 400 m 2 / g is added and mixed. but nitrates, hydroxides or chlorides der is, the average particle size by sieving of the particles of the strontium compound or barium compound reaches its purpose by 147~400μm der Rukoto.
[0006]
The constituent requirements of the present invention will be described in detail below. Particulate silica of the present invention is not particularly limited, a wet process, may be either by dry method is the form of fine powder particles silicate of appropriately selected from 100 to 400 is very large, but the specific surface area can be used m 2 / g .
[0007]
The content of the fine particles silicate in the present invention, because the problems of decreased purity required but anti-caking effect is exhibited so much large amount in the strontium compound or barium compound with 0.5% by weight or more is generated 0.5 -5.0 wt% .
[0008]
The average particle diameter of the strontium compound or barium compound of the present invention by the sieving method is preferably 147 to 400 μm. In the present invention, the strontium compound or barium compound and fine particle silicic acid may be added and mixed in a required amount and mixed at room temperature, and known mixing means may be selected as appropriate.
[0009]
【Example】
Strontium nitrate as the examples and comparative examples below, strontium chloride, the present invention will be described by way of strontium hydroxide and nitrate Barium, the present invention is not intended to be limited to the embodiments.
[0010]
Comparative Example 1 8.89 kg of strontium nitrate 80 kg (average particle size 17 μm) and fine particle silicic acid (specific surface area 402 m 2 / g ) of 10.0% by weight were mixed with a ribbon blender, and each of three paper bags was mixed. Packed 25kg. A load of 143 gf / cm 2 was applied to each of these paper bags, left at room temperature and humidity, and opened one by one after 4 weeks, 8 weeks, and 12 weeks, and the anti-caking effect was confirmed.
[0011]
Comparative Example 2 The same as Comparative Example 1 except that 80 kg of strontium nitrate (average particle diameter of 17 μm) and fine silicic acid (specific surface area of 107 m 2 / g ) were mixed at a mixing ratio of 14.12 kg of 15.0 wt%. A test was conducted.
[0012]
Comparative Example 3 Same as Comparative Example 1 except that 80 kg of strontium nitrate (average particle diameter 147 μm) and 0.08 kg of 0.1 wt% mixing ratio of fine particle silicic acid (specific surface area 107 m 2 / g ) were mixed. Tests were performed.
[0013]
Example-1 Same as Comparative Example-1 except that 80 kg of strontium nitrate (average particle size 147 μm) was mixed with 0.40 kg of a mixing ratio of 0.5 wt% of fine silica (specific surface area 107 m 2 / g ). Tests were performed.
[0014]
Example-2 The same as Comparative Example 1 except that 80 kg of strontium nitrate (average particle size 147 μm) and 4.21 kg of a mixing ratio of 5.0 wt% of fine silica (specific surface area 206 m 2 / g ) were mixed. Tests were performed.
[0015]
Comparative Example-4 Same as Comparative Example-1, except that 80 kg of strontium nitrate (average particle size 284 μm) and 0.08 kg of 0.1 wt% of fine silica (specific surface area 107 m 2 / g ) were mixed. Tests were performed.
[0016]
Example 3 Comparative Example-1 except that 80 kg of strontium nitrate (average particle size 284 μm) and 2.47 kg of a mixing ratio of 3.0 wt% of fine silica (specific surface area 206 m 2 / g ) were mixed. Tests were performed.
[0017]
Comparative Example-5 Same as Comparative Example-1 except that 80 kg of strontium nitrate (average particle size 383 μm) and 0.08 kg of 0.1 wt% of fine silica (specific surface area 107 m 2 / g ) were mixed. Tests were performed.
[0018]
Example 4 Comparative Example 1 except that 80 kg of strontium nitrate (average particle size 383 μm) and 0.81 kg of 1.0% by weight of fine particle silicic acid (specific surface area 206 m 2 / g ) were mixed. Tests were performed.
[0019]
Comparative Example-6 A test was conducted in the same manner as in Comparative Example-1, except that only 25 kg of strontium nitrate (average particle size 383 μm) was packed in a paper bag.
[0020]
Example-5 Mixing 0.40 kg of strontium chloride 80 kg (average particle size 395 μm) with fine particle silicic acid (specific surface area 206 m 2 / g ) in a ratio of 0.5% by weight with a ribbon blender. Packed 25kg. A load of 143 gf / cm 2 was applied to each of these paper bags, left at room temperature and humidity, and opened one by one after 4 weeks, 8 weeks, and 12 weeks, respectively, and a test was conducted to confirm the anti-caking effect.
[0021]
Example-6 Same as Example-5, except that 80 kg of strontium chloride (average particle size 395 μm) and 0.81 kg of 1.0% by weight of fine particle silicic acid (specific surface area 206 m 2 / g ) were mixed. Tests were performed.
[0022]
Comparative Example-7 A test similar to that of Example-5 was conducted, except that only 25 kg of strontium chloride (average particle size 395 μm) was packed in a paper bag.
[0023]
Example-7 Mixing 0.40 kg of strontium hydroxide 80 kg (average particle size 381 μm) with fine particle silicic acid (specific surface area 206 m 2 / g ) in a ratio of 0.5% by weight with a ribbon blender, into 3 paper bags Each was packed with 25 kg. A load of 143 gf / cm 2 was applied to each of these paper bags, left at room temperature and humidity, and opened one by one after 4 weeks, 8 weeks, and 12 weeks, respectively, and a test was conducted to confirm the anti-caking effect.
[0024]
Example-8 The same as Example-7, except that 80 kg of strontium hydroxide (average particle size 381 μm) and 0.81 kg of fine silica (specific surface area 206 m 2 / g ) were mixed at a mixing ratio of 1.0% by weight. Tests were performed.
[0025]
Comparative Example-8 A test was conducted in the same manner as in Example-7, except that only 25 kg of strontium hydroxide (average particle size 381 μm) was packed in a paper bag.
[0026]
Comparative Example 9 Barium nitrate 80 kg (average particle size 15 μm) and fine particle silicic acid (specific surface area 402 m 2 / g ) of 10.0% by weight of 8.89 kg were mixed with a ribbon blender, and each was packed in 3 paper bags. Packed 25kg. A load of 143 gf / cm 2 was applied to each of these paper bags, left at room temperature and humidity, and opened one by one after 4 weeks, 8 weeks, and 12 weeks, respectively, and a test was conducted to confirm the anti-caking effect.
[0027]
Comparative Example-10 Same as Comparative Example-9 except that 80 kg of barium nitrate (average particle size 15 μm) and 14.12 kg of 15.0 wt% mixing ratio of fine particle silicic acid (specific surface area 107 m 2 / g ) were mixed. Tests were performed.
[0028]
Comparative Example-11 Same as Comparative Example-9, except that 80 kg of barium nitrate (average particle size 158 μm) was mixed with 0.08 kg of 0.1 wt% of fine silica (specific surface area 107 m 2 / g ). Tests were performed.
[0029]
Example-9 The same as Comparative Example-9 except that 80 kg of barium nitrate (average particle size 158 μm) was mixed with 0.40 kg of a mixing ratio of 0.5 wt% of fine silica (specific surface area 107 m 2 / g ). Tests were performed.
[0030]
Example-10 The same as Comparative Example-9 except that 80 kg of barium nitrate (average particle size 158 μm) was mixed with fine silica (specific surface area 206 m 2 / g ) of 5.01 wt% of 4.21 kg. Tests were performed.
[0031]
Comparative Example-12 Same as Comparative Example-9, except that 80 kg of barium nitrate (average particle size 312 μm) was mixed with 0.08 kg of 0.1 wt% of fine silica (specific surface area 107 m 2 / g ). Tests were performed.
[0032]
Example-11 The same as Comparative Example-9 except that 80 kg of barium nitrate (average particle size 312 μm) and 2.47 kg of a mixing ratio of 3.0 wt% of fine silica (specific surface area 206 m 2 / g ) were mixed. Tests were performed.
[0033]
Comparative Example-13 Same as Comparative Example-9 except that 80 kg of barium nitrate (average particle size 396 μm) and 0.08 kg of 0.1 wt% mixing ratio of fine particle silicic acid (specific surface area 107 m 2 / g ) were mixed. Tests were performed.
[0034]
Example-12 The same as Comparative Example-9, except that 80 kg of barium nitrate (average particle size 396 μm) was mixed with 0.81 kg of 1.0% by weight of fine particle silicic acid (specific surface area 206 m 2 / g ). Tests were performed.
[0035]
Comparative Example-14 A test was conducted in the same manner as in Comparative Example-9, except that 25 kg of only barium nitrate (average particle size 396 μm) was packed in a paper bag.
[0036]
The implementation test results are summarized in Table 1.
[0037]
[Table 1]
(Double-circle): It is in the state where it was free flowing and a lump is not recognized.
○: A good lump is recognized but cannot be grasped by hand.
Δ: Normal lump is recognized and can be easily broken by hand.
×: Inferior The number of lumps is large and hard.
[0038]
【Effect of the invention】
As described above, the composition of the present invention prevents caking of the strontium compound or barium compound and enables long-term storage.
Claims (1)
前記ストロンチウム化合物又は前記バリウム化合物が、硝酸塩、水酸化物または塩化物であり、
前記ストロンチウム化合物又はバリウム化合物の粒子の篩分による平均粒子径が１４７〜４００μmであることを特徴とする組成物。A composition containing 0.5 to 5.0% by weight of fine particle silicic acid having a specific surface area of 100 to 400 m 2 / g in a strontium compound or barium compound,
The strontium compound or the barium compound, nitrates, hydroxides or chlorides der is,
A composition having an average particle size of 147 to 400 μm by sieving of the particles of the strontium compound or barium compound .
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| JP6044133B2 (en) * | 2012-06-29 | 2016-12-14 | 日本電気硝子株式会社 | Glass manufacturing method |
| JP5660170B2 (en) | 2012-08-16 | 2015-01-28 | 堺化学工業株式会社 | Particulate composition containing nitrate and method for producing the same |
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