JP5645924B2 - 金属不純物を分離する方法 - Google Patents
金属不純物を分離する方法 Download PDFInfo
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- JP5645924B2 JP5645924B2 JP2012507674A JP2012507674A JP5645924B2 JP 5645924 B2 JP5645924 B2 JP 5645924B2 JP 2012507674 A JP2012507674 A JP 2012507674A JP 2012507674 A JP2012507674 A JP 2012507674A JP 5645924 B2 JP5645924 B2 JP 5645924B2
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- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
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- 230000009477 glass transition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
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- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
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- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
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- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229940085991 phosphate ion Drugs 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000004633 polyglycolic acid Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- YLQLIQIAXYRMDL-UHFFFAOYSA-N propylheptyl alcohol Chemical class CCCCCC(CO)CCC YLQLIQIAXYRMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 125000005624 silicic acid group Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229960000984 tocofersolan Drugs 0.000 description 1
- VXYADVIJALMOEQ-UHFFFAOYSA-K tris(lactato)aluminium Chemical compound CC(O)C(=O)O[Al](OC(=O)C(C)O)OC(=O)C(C)O VXYADVIJALMOEQ-UHFFFAOYSA-K 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000003799 water insoluble solvent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 235000004835 α-tocopherol Nutrition 0.000 description 1
- 239000002076 α-tocopherol Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/04—Polymerisation in solution
- C08F2/10—Aqueous solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
Description
a)少なくとも部分的に中和されていてよい、少なくとも1つの、酸基を有するエチレン系不飽和モノマー、
b)少なくとも1つの架橋剤、
c)少なくとも1つの開始剤、
d)場合によってはa)に記載されたモノマーと共重合可能な1つ以上のエチレン系不飽和モノマーおよび
e)場合によっては1つ以上の水溶性ポリマーを含有するモノマー溶液またはモノマー懸濁液を重合させることによって吸水性ポリマー粒子を製造するための方法であって、その際金属不純物は、吸水性ポリマー粒子を含有する生成物のマスフローから磁気分離装置を用いて分離され、この磁気分離装置は、棒磁石から構成されており、この棒磁石は、スリーブとこのスリーブ中に存在する磁性材料とからなり、およびこのスリーブは、磁性材料と取り外し不可能であるように結合されている、吸水性ポリマー粒子を製造するための方法において、このスリーブが吸水性ポリマー粒子に直接接触していてよく、吸水性ポリマー粒子が少なくとも1つの界面活性剤を含有することを特徴とする、吸水性ポリマー粒子を製造するための方法によって解決された。
測定は、別記しない限り、23±2℃の環境温度および50±10%の相対空気湿度で実施された。吸水性ポリマー粒子を測定前に十分に混合する。
0.3psi(2070Pa)の圧力負荷下での膨潤されたゲル層の液体転送性は、欧州特許出願公開第0640330号明細書A1中の記載と同様に、吸水性ポリマー粒子からなる膨潤したゲル層のゲル層浸透性(Gel−Layer−Permeability)として測定され、この場合上記の欧州特許出願公開明細書第19頁および図8に記載された装置は、ガラスフリット(40)がもはや使用されず、プランジャー(39)が円筒体(37)と同様のプラスチック材料からなり、今や全載置面に亘って均一に分布するように21個の同じ大きさの孔を含むように十分に変更された。測定の方法および評価は、欧州特許出願公開第0640330号明細書A1と比較して不変のままである。流量は、自動的に検出される。
SFC[cm3s/g]=(Fg(t=0)×L0)/(d×A×WP)
この場合、Fg(t=0)は、g/秒でのNaCl溶液の流量であり、これは、流量測定のデータFg(t)の線形の回帰分析に基づいてt=0に対する外挿法によって得られ、L0は、cmでのゲル層の厚さであり、dは、g/cm3でのNaCl溶液の比重であり、Aは、cm2でのゲル層の面積であり、およびWPは、dyn/cm2でのゲル層上の静水圧力である。
吸水性ポリマー粒子の湿分含量を、EDANA(European Disposables and Nonwovens Association)によって推奨された試験法No.WSP230.2−05"湿分含量Moisture Content"により測定する。
遠心分離保持能力(CRC)を、EDANA(European Disposables and Nonwovens Association)によって推奨された試験法No.WSP241.2−05"遠心分離保持能Centrifuge Retention Capadity"により測定する。
49.2g/cm2の圧力(AUL0.7psi)下での吸収量を、EDANA(European Disposables and Nonwovens Association)によって推奨された試験法No.WSP242.2−05"圧力下での吸収Absorption under Pressure"と同様に測定し、この場合21.0g/cm2の圧力(AUL0.3psi)の代わりに49.2g/cm2の圧力(AUL0.7psi)に調節する。
脱イオン水、50質量%の水酸化ナトリウム溶液およびアクリル酸を連続的に混合することによって、中和度が71.3モル%となるように、アクリル酸/アクリル酸ナトリウム溶液を製造した。モノマー溶液の固体含量は、38.8質量%であった。
モノマー溶液20t/時間、
ポリエチレングリコール−400−ジアクリレート40kg/時間、
過酸化水素溶液/ナトリウムペルオキソジスルフェート溶液82.6kg/時間、
アスコルビン酸溶液21kg/時間。
基本ポリマー7.5t/時間、
表面後架橋剤溶液308.25kg/時間。
例1と同様にプロセスを行なった。表面後架橋剤溶液は、付加的にソルビタンモノラウレート0.24質量%を含有していた(Span(登録商標)20,ICI Americans Inc.,Wilmington,US)。
Claims (12)
- a)少なくとも部分的に中和されていてよい、少なくとも1つの、酸基を有するエチレン系不飽和モノマー、
b)少なくとも1つの架橋剤、
c)少なくとも1つの開始剤、
d)場合によってはa)に記載されたモノマーと共重合可能な1つ以上のエチレン系不飽和モノマーおよび
e)場合によっては1つ以上の水溶性ポリマーを含有するモノマー溶液またはモノマー懸濁液を重合することにより、吸水性ポリマー粒子を製造するための方法であって、
その際金属不純物は、吸水性ポリマー粒子を含有する生成物のマスフローから磁気分離装置を用いて分離され、この磁気分離装置は、複数の棒磁石から構成されており、この棒磁石は、スリーブとこのスリーブ中に存在する磁性材料とからなり、およびこのスリーブは、磁性材料と取り外し不可能であるように結合されている、前記方法において、
このスリーブが吸水性ポリマー粒子に直接接触することができ、吸水性ポリマー粒子が少なくとも1つの界面活性剤を含有することを特徴とする、前記方法。 - 生成物のマスフローは、30〜90℃の温度を有する、請求項1記載の方法。
- 生成物のマスフロー中の吸水性ポリマー粒子は、1〜20質量%の湿分含量を有する、請求項1または2記載の方法。
- 吸水性ポリマー粒子の湿分含量を、磁気分離装置の上流で増加させる、請求項1から3までのいずれか1項に記載の方法。
- 磁気分離装置の単位面積当たりの負荷量は、2〜15g/cm2sである、請求項1から4までのいずれか1項に記載の方法。
- 棒磁石は、5〜30mmの直径を有する、請求項1から5までのいずれか1項に記載の方法。
- 棒磁石間の間隙幅は、5〜30mmである、請求項1から6までのいずれか1項に記載の方法。
- 吸水性ポリマー粒子の少なくとも95質量%は、少なくとも150μmの粒度を有する、請求項1から7までのいずれか1項に記載の方法。
- 吸水性ポリマー粒子の少なくとも95質量%は、最大で600μmの粒度を有する、請求項1から8までのいずれか1項に記載の方法。
- 吸水性ポリマー粒子は、少なくとも15g/gの遠心分離保持能を有する、請求項1から9までのいずれか1項に記載の方法。
- 金属不純物を、吸水性ポリマー粒子を含有する生成物のマスフローから磁気分離装置を用いて分離する方法であって、この磁気分離装置は、複数の棒磁石から構成され、この棒磁石は、スリーブとこのスリーブ中に存在する磁性材料とからなり、およびこのスリーブは、磁性材料と取り外し不可能であるように結合されている、前記方法において、
このスリーブが吸水性ポリマー粒子に直接接触することができ、吸水性ポリマー粒子が少なくとも1つの界面活性剤を含有することを特徴とする、前記方法。 - 吸水性ポリマー粒子は、少なくとも15g/gの遠心分離保持能を有する、請求項11記載の方法。
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