JP6042404B2 - 無機材料から成る多孔質造粒粒子を製造する方法 - Google Patents
無機材料から成る多孔質造粒粒子を製造する方法 Download PDFInfo
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- 239000011361 granulated particle Substances 0.000 title claims description 75
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 229910010272 inorganic material Inorganic materials 0.000 title claims description 7
- 239000011147 inorganic material Substances 0.000 title claims description 7
- 239000004071 soot Substances 0.000 claims description 116
- 238000000034 method Methods 0.000 claims description 61
- 238000000151 deposition Methods 0.000 claims description 36
- 230000008021 deposition Effects 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 18
- 238000000280 densification Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 229910052799 carbon Inorganic materials 0.000 description 15
- 238000005469 granulation Methods 0.000 description 13
- 230000003179 granulation Effects 0.000 description 13
- 239000011164 primary particle Substances 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000005137 deposition process Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 9
- 230000008595 infiltration Effects 0.000 description 9
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- 239000000843 powder Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
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- 239000007772 electrode material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000001029 thermal curing Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000007833 carbon precursor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910021469 graphitizable carbon Inorganic materials 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005550 wet granulation Methods 0.000 description 1
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Description
DE10243953A1号明細書には、典型的な構造化造粒法が記載されており、この造粒法では、石英ガラス製造時にフィルター粉塵として生じるものと同様の、熱分解により製造される遊離SiO2パウダー(いわゆる「スート粉塵」)が水と混合され、懸濁液がつくられる。この懸濁液は、湿式造粒法によってSiO2粒子となるよう加工され、乾燥及びクリーニング後、塩素含有気体中で加熱することにより熱的に高密化され、この場合、140μmの粒径を有する透明な石英ガラス粒子となるまで焼結される。
本発明の課題は、階層的多孔構造のより顕著な形を有した多孔質造粒体の安価であると同時に再現可能な製造を可能にする方法を提供することである。
この課題は、方法に関しては、本発明により、以下の方法ステップを有する方法により解決される。即ち、
(a)供給材料を熱分解又は加水分解によって材料粒子に変換する反応区域に、供給材料流を供給するステップ、
(b)前記材料粒子を、スート層を形成しながら、堆積面上に析出させるステップ、
(c)前記スート層を多孔質スートプレートと成るように熱的に硬化させるステップ、
(d)前記スートプレートを多孔質の造粒粒子と成るように細分化するステップ、を有する方法によって、上記課題は解決される。
以下に本発明を、実施例と図面につき詳しく説明する。
Claims (22)
- 無機材料から成る多孔質のスート造粒粒子(13)を製造する方法であって、以下の方法ステップ、即ち、
(a)供給材料を熱分解又は加水分解によって無機材料から成る材料粒子に変換する反応区域に、供給材料流を供給するステップ、
(b)前記材料粒子を、スート層(5)を形成しながら、堆積面(1a)上に析出させるステップ、
(c)前記スート層(5)を多孔質スートプレート(5a)となるように熱的に硬化させるステップ、
(d)前記スートプレート(5a)を多孔質のスート造粒粒子(13)と成るように細分化するステップ、
を有していることを特徴とする、無機材料から成る多孔質のスート造粒粒子(13)を製造する方法。 - 10〜500μmの範囲の厚さを有したスートプレート(5a)を形成する、請求項1記載の方法。
- 20〜100μmの範囲の厚さを有したスートプレート(5a)を形成する、請求項1記載の方法。
- 50μmよりも小さい厚さを有したスートプレート(5a)を形成する、請求項1記載の方法。
- 前記スート造粒粒子(13)は、球面状ではないモルフォロジを有している、請求項1から4までのいずれか1項記載の方法。
- 前記スート造粒粒子(13)は小板状又は棒片状に、少なくとも5の構造比をもって形成されている、請求項5記載の方法。
- 前記スート造粒粒子(13)は小板状又は棒片状に、少なくとも10の構造比をもって形成されている、請求項5記載の方法。
- 前記スート造粒粒子(13)は側方に、連続した孔を備えた破砕面(22)を有している、請求項6記載の方法。
- 前記スート造粒粒子(13)は、10〜500μmの範囲の平均厚さを有している、請求項1から8までのいずれか1項記載の方法。
- 前記スート造粒粒子(13)は、20〜100μmの範囲の平均厚さを有している、請求項1から8までのいずれか1項記載の方法。
- 前記スート造粒粒子(13)は、50μmよりも小さい平均厚さを有している、請求項1から8までのいずれか1項記載の方法。
- 前記堆積面(1a)が、回転軸線(2)を中心として回転するドラム(1)の円筒周面として形成されている、請求項1から11までのいずれか1項記載の方法。
- 前記スート層(5)は、前記ドラム(1)が前記回転軸線(2)を中心として1回転する前に形成される、請求項12記載の方法。
- 前記スート層(5)の形成を、前記回転軸線(2)に沿って往復して動く、複数の析出バーナ(4)から成る装置(3)によって行う、請求項12又は13記載の方法。
- 前記スート層(5)の形成を定置の直線的なバーナによって行い、該直線的なバーナの長手方向軸線は前記ドラム(1)に沿って延びている、請求項12又は13記載の方法。
- 前記方法ステップ(c)による前記スート層(5)の熱的な高密化のステップは、少なくとも1つの付加的なバーナによる加熱を含む、請求項1から15までのいずれか1項記載の方法。
- 前記堆積面(1a)は、内部から熱処理される中空体(1)上に形成されている、請求項1から16までのいずれか1項記載の方法。
- 前記スートプレート(5a)が、材料の最大の比密度に関して、10〜40%の範囲の相対密度を有している、請求項1から17までのいずれか1項記載の方法。
- 前記スートプレート(5a)が、材料の最大の比密度に関して、25%よりも小さい相対密度を有している、請求項18記載の方法。
- 前記方法ステップ(d)により細分化するために前記スートプレート(5a)を前記堆積面(1a)から離間して、この際に前記スートプレート(5a)の下面からガス流(7)を吹き付ける、請求項1から19までのいずれか1項記載の方法。
- 前記方法ステップ(d)による前記スートプレート(5a)の細分化を、前記堆積面(1a)から少なくとも部分的に空間的に分離されている区域で行う、請求項1から20までのいずれか1項記載の方法。
- 前記スートプレート(5a)の細分化を破砕により行う、請求項1から21までのいずれか1項記載の方法。
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PCT/EP2012/054442 WO2012126782A1 (de) | 2011-03-23 | 2012-03-14 | Verfahren für die herstellung poröser granulatteilchen aus anorganischem werkstoff sowie deren verwendung |
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