JP2007535399A - 活性化クロム酸化物触媒の還元方法 - Google Patents
活性化クロム酸化物触媒の還元方法 Download PDFInfo
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- reducing agent
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- 239000003054 catalyst Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 23
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 title description 2
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 239000011651 chromium Substances 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 15
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229930006000 Sucrose Natural products 0.000 claims description 6
- 239000005720 sucrose Substances 0.000 claims description 6
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000002016 disaccharides Chemical class 0.000 claims description 3
- 150000004676 glycans Chemical class 0.000 claims description 3
- 229920001282 polysaccharide Polymers 0.000 claims description 3
- 239000005017 polysaccharide Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000005715 Fructose Substances 0.000 claims description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 2
- 229930091371 Fructose Natural products 0.000 claims description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 2
- 239000008103 glucose Substances 0.000 claims description 2
- 150000002772 monosaccharides Chemical class 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- 229930195733 hydrocarbon Natural products 0.000 claims 2
- 150000002430 hydrocarbons Chemical class 0.000 claims 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
- 125000000185 sucrose group Chemical group 0.000 claims 1
- 230000001988 toxicity Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000012025 fluorinating agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- LXPCOISGJFXEJE-UHFFFAOYSA-N oxifentorex Chemical compound C=1C=CC=CC=1C[N+](C)([O-])C(C)CC1=CC=CC=C1 LXPCOISGJFXEJE-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011990 phillips catalyst Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/37—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
クロム(VI)種は毒性が高いので、廃棄する前に、それをより低価状態(通常、3価又は2価)種の非毒性クロム種に変換することが必要である。
重合に使用されることにより、触媒中のクロム(VI)種が還元されることは知られている。
前記方法は、攪拌状態下で、6価クロム酸化物系触媒と、クロム種に対してモル過剰の
固体還元剤とを接触させ、得られた混合物を30〜1000℃の範囲の温度で処理することからなる。
還元剤の色が支障になる場合、還元の程度は実施の欄に記載した方法を介して検査可能である。
しくは、窒素又はアルゴンのような不活性ガスが反応器中で使用される。
特徴づけ
混合物中の残留Cr(VI)の百分率は、Cr(VI)種とメチル−イソブチル−ケトン(MIBK)との錯体の578nmでの吸収の測定を介して、Cr)VI)の既知量を有する標準MIBK溶液から得られる検量線と比較することで決定する。
次いで、578(最大ピーク値から基準線値を減算することにより定義される)での吸収ピーク高さの値が希釈要因により訂正され、次いで検量線と比較され、最終結果を得る。
触媒1g(20000ppmのCr(VI)を含む)と炭素0.8gの試料を、頂部スクリューキャップを備えた連続攪拌反応器中に入れた。反応器をアルゴンで満たし、次いで、600℃で1時間炉中に置いた。最後に試料を集め、残留CrVIを測定した。非還元Cr(VI)の量は約45ppmであることがわかった。
還元を600℃で2時間行なうことを異ならせて実施例1を繰り返した。非還元Cr(VI)の量は45ppmであることがわかった。
還元を700℃で1時間行なうことを異ならせて実施例1を繰り返した。非還元Cr(VI)の量は70ppmであることがわかった。
混合物にNH2NH2H2SO4を0.5g更に添加することを異ならせて実施例1を繰り返した。非還元Cr(VI)は実質的に存在しなかった(20ppm未満)。
触媒1gと炭素0.8gの試料を、磁気坩堝(攪拌なし)中に入れ、次いで600℃で1時間炉中に置いた。非還元Cr(VI)の量は初期量の23.2%であることがわかった。
触媒2gとスクロース1gの試料を、頂部スクリューキャップを備えた連続攪拌反応器中に入れた。反応器をアルゴンで満たし、次いで、100℃で1時間炉中に置いた。最後に試料を集め、残留CrVIを測定した。非還元Cr(VI)の量は20ppm未満であることがわかった。
試料を100℃で1時間、次いで500℃で1時間、次いで600℃で1時間処理することを異ならせて実施例7を繰り返した。最後に試料を集め、残留CrVIを測定した。非還元Cr(VI)の量は30ppmであることがわかった。
試料を100℃で1時間、次いで300℃で1時間、次いで400℃で1時間処理することを異ならせて実施例8を繰り返した。最後に試料を集め、残留CrVIを測定した。非還元Cr(VI)の量は20ppm未満であることがわかった。
Claims (9)
- 6価クロム酸化物系触媒と、クロム種に対して過剰モルの固体還元剤とを攪拌状態下で接触させ、得られた混合物を30〜1000℃の範囲の温度に付すこととを含む6価クロム酸化物系触媒の還元法。
- 前記温度が、30〜900℃の範囲に維持される請求項1の方法。
- 前記固体還元剤が、次の化合物である、FeS、FeSO4、Cu°、炭素、ハイドロキノン及び炭化水素の少なくとも1つを含む請求項1の方法。
- 前記炭化水素が、単糖類、二糖類又は多糖類である請求項1の方法。
- 前記固体還元剤が、グルコース、フルクトース、スクロース又はカーボンから選択される請求項3の方法。
- 前記固体還元剤が、カーボンから選択され、温度が、400〜800℃の範囲である請求項4の方法。
- 前記固体還元剤が、二糖類から選択され、温度が、50〜300℃の範囲である請求項4の方法。
- 前記固体還元剤が、スクロースである請求項5の方法。
- 連続攪拌反応器中で行われる先のいずれかの請求項の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP04101864 | 2004-04-30 | ||
US56914304P | 2004-05-07 | 2004-05-07 | |
PCT/EP2005/004403 WO2005105306A2 (en) | 2004-04-30 | 2005-04-21 | Process for the reduction and safe disposal of an activated chromium oxide catalyst |
Publications (1)
Publication Number | Publication Date |
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JP2007535399A true JP2007535399A (ja) | 2007-12-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007509947A Pending JP2007535399A (ja) | 2004-04-30 | 2005-04-21 | 活性化クロム酸化物触媒の還元方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7407591B2 (ja) |
EP (1) | EP1742734B1 (ja) |
JP (1) | JP2007535399A (ja) |
AT (1) | ATE369911T1 (ja) |
DE (1) | DE602005002051T2 (ja) |
ES (1) | ES2292131T3 (ja) |
WO (1) | WO2005105306A2 (ja) |
Cited By (1)
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JP2019131780A (ja) * | 2018-02-02 | 2019-08-08 | 株式会社津田沼技研 | 六価クロム還元剤 |
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US7633033B2 (en) | 2004-01-09 | 2009-12-15 | General Lasertronics Corporation | Color sensing for laser decoating |
US8536483B2 (en) | 2007-03-22 | 2013-09-17 | General Lasertronics Corporation | Methods for stripping and modifying surfaces with laser-induced ablation |
US8202952B2 (en) * | 2008-11-21 | 2012-06-19 | Equistar Chemicals, Lp | Process for making ethylene homopolymers |
US8053085B2 (en) * | 2009-06-16 | 2011-11-08 | Equistar Chemicals, Lp | Heat-shrinkable film |
US10112257B1 (en) | 2010-07-09 | 2018-10-30 | General Lasertronics Corporation | Coating ablating apparatus with coating removal detection |
US9895771B2 (en) | 2012-02-28 | 2018-02-20 | General Lasertronics Corporation | Laser ablation for the environmentally beneficial removal of surface coatings |
US10086597B2 (en) | 2014-01-21 | 2018-10-02 | General Lasertronics Corporation | Laser film debonding method |
CA3110890A1 (en) | 2018-09-17 | 2020-03-26 | Chevron Phillips Chemical Company Lp | Light treatment of chromium catalysts and related catalyst preparation systems and polymerization processes |
US11396485B2 (en) | 2019-09-16 | 2022-07-26 | Chevron Phillips Chemical Company Lp | Chromium-based catalysts and processes for converting alkanes into higher and lower aliphatic hydrocarbons |
US11142491B2 (en) | 2019-09-16 | 2021-10-12 | Chevron Phillips Chemical Company, Lp | Chromium-catalyzed production of diols from olefins |
US11780786B2 (en) | 2020-09-14 | 2023-10-10 | Chevron Phillips Chemical Company Lp | Transition metal-catalyzed production of alcohol and carbonyl compounds from hydrocarbons |
WO2022260947A1 (en) | 2021-06-08 | 2022-12-15 | Chevron Phillips Chemical Company Lp | Chromium-catalyzed production of alcohols from hydrocarbons in the presence of oxygen |
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US3784669A (en) * | 1972-10-03 | 1974-01-08 | Us Interior | Recovery of metal values from chrome etching solutions |
JPS5297369A (en) * | 1976-02-13 | 1977-08-16 | Babcock Hitachi Kk | Treatment of waste containing chromium and equipment |
JP2003047946A (ja) * | 2001-08-06 | 2003-02-18 | Maeda Kosen Co Ltd | 還元部材及びその製造方法 |
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- 2005-04-21 JP JP2007509947A patent/JP2007535399A/ja active Pending
- 2005-04-21 ES ES05733886T patent/ES2292131T3/es active Active
- 2005-04-21 WO PCT/EP2005/004403 patent/WO2005105306A2/en active IP Right Grant
- 2005-04-21 EP EP05733886A patent/EP1742734B1/en not_active Not-in-force
- 2005-04-21 DE DE602005002051T patent/DE602005002051T2/de active Active
- 2005-04-21 AT AT05733886T patent/ATE369911T1/de not_active IP Right Cessation
- 2005-04-21 US US11/587,332 patent/US7407591B2/en not_active Expired - Fee Related
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JP2019131780A (ja) * | 2018-02-02 | 2019-08-08 | 株式会社津田沼技研 | 六価クロム還元剤 |
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WO2005105306A2 (en) | 2005-11-10 |
ATE369911T1 (de) | 2007-09-15 |
US20070219085A1 (en) | 2007-09-20 |
ES2292131T3 (es) | 2008-03-01 |
WO2005105306A3 (en) | 2006-01-05 |
US7407591B2 (en) | 2008-08-05 |
DE602005002051D1 (de) | 2007-09-27 |
EP1742734A2 (en) | 2007-01-17 |
DE602005002051T2 (de) | 2008-05-08 |
EP1742734B1 (en) | 2007-08-15 |
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