JP6032864B2 - ジェットミルを用いて微細な粒子を形成するための方法 - Google Patents
ジェットミルを用いて微細な粒子を形成するための方法 Download PDFInfo
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- JP6032864B2 JP6032864B2 JP2010218236A JP2010218236A JP6032864B2 JP 6032864 B2 JP6032864 B2 JP 6032864B2 JP 2010218236 A JP2010218236 A JP 2010218236A JP 2010218236 A JP2010218236 A JP 2010218236A JP 6032864 B2 JP6032864 B2 JP 6032864B2
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- 238000000034 method Methods 0.000 title claims description 86
- 239000010419 fine particle Substances 0.000 title claims description 32
- 238000000227 grinding Methods 0.000 claims description 80
- 239000000463 material Substances 0.000 claims description 55
- 239000002245 particle Substances 0.000 claims description 49
- 239000007789 gas Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 26
- 235000012239 silicon dioxide Nutrition 0.000 claims description 22
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 20
- 229920000570 polyether Polymers 0.000 claims description 18
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002019 doping agent Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 229920000058 polyacrylate Polymers 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052756 noble gas Inorganic materials 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 239000000047 product Substances 0.000 description 28
- 238000000576 coating method Methods 0.000 description 22
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- 230000002829 reductive effect Effects 0.000 description 10
- 238000011109 contamination Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000011362 coarse particle Substances 0.000 description 7
- -1 Amosil Chemical class 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 239000000499 gel Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000011147 inorganic material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 229910003480 inorganic solid Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
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- 239000011368 organic material Substances 0.000 description 4
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- 230000002000 scavenging effect Effects 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
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- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
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- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000002835 noble gases Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
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- 230000006641 stabilisation Effects 0.000 description 2
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- 239000000606 toothpaste Substances 0.000 description 2
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- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
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- 239000006224 matting agent Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 239000011802 pulverized particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000005624 silicic acid group Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3009—Physical treatment, e.g. grinding; treatment with ultrasonic vibrations
- C09C1/3018—Grinding
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3072—Treatment with macro-molecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3081—Treatment with organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/309—Combinations of treatments provided for in groups C09C1/3009 - C09C1/3081
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/42—Gloss-reducing agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Silicon Compounds (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
レーザ回折を用いた粒度の測定
粉末状の固形物の粒度分布を測定するためのレーザ回折の使用は、粒子がその大きさに関連して、単色のレーザビームの光線を種々異なる強度パターンであらゆる方向に散乱させるか、もしくは回折させるという現象に基づいている。照射された粒子の直径が小さくなればなるほど、単色のレーザビームの散乱角度もしくは回折角度はますます大きくなる。
分散液の屈折率B.I. 実部水=1.332(エタノールに対して1.359)、固形物(試料材料)の屈折率 実部ケイ酸=1.46
虚部(Imaginaer)=0.1
形状因子(Formfaktor)=1
測定時間=60秒
測定回数=1
ポンプ速度=75%
ホソカワアルピネ社(Fa. Hosokawa Alpine AG)のAFG200 エアロプレックス−流動層式カウンタジェットミル(Aeroplex-Fliessbett-Gegenstrahlmuehle)において、エボニック・デグッサ社(Firma Evonik Degussa GmbH)のACEMATT(登録商標)HK400を、76℃の粉砕空気流入温度(粉砕チャンバ内室温度=60℃)でかつ0.4バール(絶対)の圧力で粉砕して、シリコーンポリエーテルアクリレートTego(登録商標)Rad2300で被覆した。この場合、このコーティング剤は、粉砕ノズルと同じ平面もしくはレベルに位置する2成分ノズル(図1〜図3には描かれていない)を介して、ミル内に供給される(120゜の間隔で3つの粉砕ノズルおよびこれらの粉砕ノズルのうちの2つの間に60゜の間隔で2成分ノズル)。7.4質量%のTegoRad(登録商標)2300(TegoRad2300は約43.9重量%の炭素含量を有している)を供給した。最終製品には、3.2重量%の炭素含量が認められた。すなわち、TegoRad2300のC含量を考慮して、ポリエーテル損失なしにほぼ定量的な被覆が達成された。湿式コーティングの場合には、TegoRad2300を同じ比率で添加しても、最終製品には、2.5〜2.8重量%の炭素しか認められなかった。したがって、湿式コーティングの場合には表面改質剤の著量がケイ酸に存在しているのではなく、水によって洗出されてしまっている。このことは、水溶性の成分を有する表面改質剤で担持材料を被覆する際の本発明による方法の特別な利点を示している。製品は4.7μmのd50値を有している。
エボニック・デグッサ社(Firma Evonik Degussa GmbH)のSipernat(登録商標)50を、ネッチコンダックス社(Fa. Netzsch- Condux)の流動層カウンタジェットミル、タイプCGS50において、80℃の粉砕空気温度でかつ0.36バール(絶対)の圧力で粉砕し、ドイレックス社(Fa. Deurex)のPEワックス(溶融範囲:98〜103℃)で被覆した。コーティングの実施は、例1と同様にして行った。製品は5.8μmのd50値を有している。
エボニック・デグッサ社(Firma Evonik Degussa GmbH)の研磨性の練り歯磨きケイ酸Sident(登録商標)9を、一度、本発明による方法により、ネッチコンダックス社(Fa. Netzsch- Condux)の流動層カウンタジェットミル、タイプCGS50において、例2と同様にして粉砕した。択一的に、Sident(登録商標)9を、アルピネ社(Firma Alpine)の機械式のインパクトミルUPZ160において粉砕した。この機械式のインパクトミルでは、約600kgの平均処理量において、約6.5gの摩耗が生ぜしめられた。このことは、11ppmの鉄不純物の増加に相当する。本発明による粉砕では、鉄不純物の増加は1ppmよりも低い値であった。
2 ハウジング
3 粉砕室
4 粉砕材料供給部
5 粉砕ジェット流入部
6 製品流出部
7 風力分級器
8 分級羽根車
9 流入ノズル
10 粉砕ジェット
11,12 加熱源
13 供給管
14 ジャケット
15 流入部
16 流出部
17 中央部
18 リザーバ装置または発生装置
18a タンク
19 管路装置
20 流出管片
21 分級器ハウジング
22 ハウジング上側部分
23 ハウジング下側部分
24,25 周方向フランジ
26 ジョイント
28 分級室ハウジング
28a 支持アーム
29 搬出コーン
30,31 フランジ
32,33 カバーディスク
34 羽根
35 分級羽根車軸
35a 回転軸受け
36,37 プレート
38 ハウジング端区分
39 製品供給管片
40 回転軸線
41 流出室
42 カバープレート
43 カバー
44 支持アーム
45 環状ハウジング
46 吸込みフィルタ
47 孔付プレート
48 微粒搬出管
49 そらせ円錐体
50 分級空気流入螺旋体
51 粗粒搬出部
52,53 フランジ
54 分散ゾーン
55 フランジ
56,57 保護管
58 微粒流出部
59 羽根クラウン
Claims (13)
- ジェットミルを用いて微細な粒子を形成するための方法において、粉砕ガスが、≦4バール(絶対)の圧力と、100℃よりも低い温度とを有しており、ジェットミルが、組み込まれた動的な風力分級器(7)を備えており、粉砕ガスの圧力および温度を形成するために、ブロワを使用し、粉砕時に、粉砕材料の微細な粒子の表面の少なくとも一部がコーティング剤もしくはドーピング剤で被覆されるようにコーティング剤もしくはドーピング剤を添加し、粒子が沈降ケイ酸であり、微細な粒子の表面の少なくとも一部が、コーティング剤もしくはドーピング剤としてのシリコーンポリエーテルアクリレートポリマおよび/またはシリコーンポリエーテルメタクリレートポリマによって改質されており、前記ポリマは10〜20重量%のポリエーテル過剰量を有していることを特徴とする、微細な粒子を形成するための方法。
- 風力分級器(7)が、半径減少と共に増大するか、または一定となる内法高さを有する分級ロータまたは分級羽根車(8)を有していて、作動時に該分級ロータまたは分級羽根車(8)の通流される流過面が、少なくともほぼ一定である、請求項1記載の方法。
- 風力分級器(7)が、交換可能な浸漬管(20)を備えた分級ロータまたは分級羽根車(8)を有しており、前記浸漬管(20)は、分級ロータまたは分級羽根車(8)が回転すると一緒に回転するように形成されている、請求項1または2記載の方法。
- 流れ方向に横断面拡張を有する微粒流出室(41)が設けられている、請求項1から3までのいずれか1項記載の方法。
- 粉砕ガスとして空気および/またはアルゴンおよび/または希ガスおよび/または窒素および/または前記粉砕ガスの混合物を使用する、請求項1から4までのいずれか1項記載の方法。
- 粉砕ガスの温度が、95℃よりも低いかもしくは95℃に等しい、請求項1から5までのいずれか1項記載の方法。
- 粉砕ガスの温度が、80℃よりも低いかもしくは80℃に等しい、請求項6記載の方法。
- 粉砕ガスの温度が、50〜80℃である、請求項7記載の方法。
- 粉砕ガスの圧力が、3バールよりも低い、請求項1から8までのいずれか1項記載の方法。
- 粉砕ガスの圧力が、2バールよりも低い、請求項9記載の方法。
- 粉砕ガスの圧力が、0.15〜0.5バールである、請求項10記載の方法。
- 当該方法を、粉砕ガス圧と温度との次の組合せ:0.15〜0.5バールおよび15〜50℃もしくは0.15〜0.5バールおよび50〜80℃で実施する、請求項6から11までのいずれか1項記載の方法。
- 非晶質の粒子において、非晶質の粒子が沈降ケイ酸であり、粒子の表面の少なくとも一部が、シリコーンポリエーテルアクリレートポリマおよび/またはシリコーンポリエーテルメタクリレートポリマによって改質されており、前記ポリマは10〜20重量%のポリエーテル過剰量を有していることを特徴とする、非晶質の粒子。
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EP (1) | EP2301667B1 (ja) |
JP (1) | JP6032864B2 (ja) |
KR (1) | KR101364779B1 (ja) |
CN (2) | CN102774841A (ja) |
BR (1) | BRPI1003864B1 (ja) |
DE (1) | DE102009045116A1 (ja) |
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US10890515B2 (en) | 2016-08-09 | 2021-01-12 | Satake Chemical Equipment Mfg. Ltd. | Classifying apparatus |
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JP2011072993A (ja) | 2011-04-14 |
TW201125640A (en) | 2011-08-01 |
CN102774841A (zh) | 2012-11-14 |
BRPI1003864A2 (pt) | 2013-01-29 |
US20110073689A1 (en) | 2011-03-31 |
DE102009045116A1 (de) | 2011-03-31 |
EP2301667A3 (de) | 2017-11-15 |
TWI503175B (zh) | 2015-10-11 |
EP2301667B1 (de) | 2020-12-16 |
EP2301667A2 (de) | 2011-03-30 |
CN102029215A (zh) | 2011-04-27 |
KR20110035926A (ko) | 2011-04-06 |
KR101364779B1 (ko) | 2014-02-21 |
BRPI1003864B1 (pt) | 2020-08-11 |
US8864056B2 (en) | 2014-10-21 |
ES2848429T3 (es) | 2021-08-09 |
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