JP4628721B2 - 二酸化チタンの回収方法 - Google Patents
二酸化チタンの回収方法 Download PDFInfo
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- JP4628721B2 JP4628721B2 JP2004228435A JP2004228435A JP4628721B2 JP 4628721 B2 JP4628721 B2 JP 4628721B2 JP 2004228435 A JP2004228435 A JP 2004228435A JP 2004228435 A JP2004228435 A JP 2004228435A JP 4628721 B2 JP4628721 B2 JP 4628721B2
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- Prior art keywords
- vinyl chloride
- titanium dioxide
- chloride resin
- waste material
- residue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims description 57
- 238000000034 method Methods 0.000 title claims description 29
- 239000004408 titanium dioxide Substances 0.000 title claims description 27
- 238000011084 recovery Methods 0.000 title description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 229920005989 resin Polymers 0.000 claims description 41
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 38
- 239000002699 waste material Substances 0.000 claims description 32
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- 238000007033 dehydrochlorination reaction Methods 0.000 claims description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000010985 leather Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 229920002522 Wood fibre Polymers 0.000 description 10
- 239000002025 wood fiber Substances 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- 239000006096 absorbing agent Substances 0.000 description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 239000002649 leather substitute Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 15% to 30% Chemical compound 0.000 description 1
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000007833 carbon precursor Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
Description
以下、本発明を、実施例により更に具体的に説明する。
塩化ビニル系樹脂廃材として炭酸カルシウム約23gおよび図1にプランクとして示す粒径分布を示し平均粒径が0.36μmのルチル型二酸化チタン約7gを含む壁紙の粉砕品(平均粒径5mm)100gを、目皿の存在する直径50mmの石英縦型炉に入れ、窒素1リットル/分流量下で室温から400℃まで1時間で昇温加熱を行い、その温度で1時間保持し、内容物の熱処理を行った。この処理物の回収量は46gであった。この熱処理物を3%塩酸水溶液で洗浄抽出し、残渣物23gを得た。この残渣物を坩堝に入れ、空気雰囲気中で下から約600℃に加熱して燃焼させ、白色物粉末7gを得た。この白色物粉末はX線回折パターンからルチル型二酸化チタンであることが確認され、その粒径分布は図1に熱処理回収品として示す通りであり、平均粒径は0.46μmであった。
塩化ビニル系樹脂廃材として、レザーシートの破砕品(平均粒径5mm)100gに実施例1と同様の処理を行うことにより、2gの二酸化チタンを得た。
Claims (6)
- 炭酸カルシウムおよび二酸化チタンを含む塩化ビニル系樹脂廃材を、破砕後、加熱・脱塩化水素処理し、残渣を水性液により洗浄した後、燃焼・処理し、その残渣を二酸化チタンとして回収することを特徴とする二酸化チタンの回収方法。
- 塩化ビニル系樹脂廃材が、壁紙廃材である請求項1に記載の方法。
- 塩化ビニル系樹脂廃材が人造レザー製品廃材である請求項1に記載の方法。
- 加熱・脱塩化水素処理が不活性ガス雰囲気中、300〜450℃で行なわれる請求項1〜3のいずれかに記載の方法。
- 水性液による洗浄が塩酸水溶液により行なわれる請求項1〜4のいずれかに記載の方法。
- 水性液による洗浄廃液から塩化カルシウムを回収する、請求項1〜5のいずれかに記載の方法。
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JP2004228435A JP4628721B2 (ja) | 2004-08-04 | 2004-08-04 | 二酸化チタンの回収方法 |
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JP2004228435A JP4628721B2 (ja) | 2004-08-04 | 2004-08-04 | 二酸化チタンの回収方法 |
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JP2006044988A JP2006044988A (ja) | 2006-02-16 |
JP4628721B2 true JP4628721B2 (ja) | 2011-02-09 |
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JP2004228435A Expired - Fee Related JP4628721B2 (ja) | 2004-08-04 | 2004-08-04 | 二酸化チタンの回収方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102259109B (zh) * | 2011-05-30 | 2013-07-17 | 西安华领控制技术有限公司 | 钛及钛合金残废料处理装置系统及分拣钛料的方法 |
CN111570470A (zh) * | 2020-05-13 | 2020-08-25 | 崔锦霞 | 一种数码产品加工回收装置 |
JP7162710B1 (ja) | 2021-09-10 | 2022-10-28 | 大日精化工業株式会社 | 印刷インキの製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07150150A (ja) * | 1993-11-29 | 1995-06-13 | Topy Ind Ltd | 塩化ビニル含有ダストの熱分解処理方法および装置 |
JPH11222534A (ja) * | 1998-02-06 | 1999-08-17 | Nippon Zeon Co Ltd | 塩化ビニル系樹脂廃棄物の処理方法 |
JPH11279327A (ja) * | 1998-03-30 | 1999-10-12 | Nippon Zeon Co Ltd | 塩化ビニル系樹脂廃棄物の処理方法 |
JP2001253713A (ja) * | 2000-03-09 | 2001-09-18 | Akitsugu Okuwaki | 酸化チタン含有プラスチック中の酸化チタンの回収方法 |
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2004
- 2004-08-04 JP JP2004228435A patent/JP4628721B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07150150A (ja) * | 1993-11-29 | 1995-06-13 | Topy Ind Ltd | 塩化ビニル含有ダストの熱分解処理方法および装置 |
JPH11222534A (ja) * | 1998-02-06 | 1999-08-17 | Nippon Zeon Co Ltd | 塩化ビニル系樹脂廃棄物の処理方法 |
JPH11279327A (ja) * | 1998-03-30 | 1999-10-12 | Nippon Zeon Co Ltd | 塩化ビニル系樹脂廃棄物の処理方法 |
JP2001253713A (ja) * | 2000-03-09 | 2001-09-18 | Akitsugu Okuwaki | 酸化チタン含有プラスチック中の酸化チタンの回収方法 |
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