JP2010084242A - ピッチ除去剤 - Google Patents
ピッチ除去剤 Download PDFInfo
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- JP2010084242A JP2010084242A JP2008252273A JP2008252273A JP2010084242A JP 2010084242 A JP2010084242 A JP 2010084242A JP 2008252273 A JP2008252273 A JP 2008252273A JP 2008252273 A JP2008252273 A JP 2008252273A JP 2010084242 A JP2010084242 A JP 2010084242A
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- pitch
- pulp
- raw material
- paper
- terpene
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- 239000002994 raw material Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 125000005702 oxyalkylene group Chemical group 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 32
- -1 terpene alcohols Chemical class 0.000 claims description 30
- 235000007586 terpenes Nutrition 0.000 claims description 27
- 239000002761 deinking Substances 0.000 claims description 18
- 239000010893 paper waste Substances 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 abstract description 10
- 239000013055 pulp slurry Substances 0.000 abstract description 8
- 239000011295 pitch Substances 0.000 description 81
- 238000005188 flotation Methods 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000000605 extraction Methods 0.000 description 8
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
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- HNZBNQYXWOLKBA-UHFFFAOYSA-N Tetrahydrofarnesol Natural products CC(C)CCCC(C)CCCC(C)=CCO HNZBNQYXWOLKBA-UHFFFAOYSA-N 0.000 description 1
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- XCPQUQHBVVXMRQ-UHFFFAOYSA-N alpha-Fenchene Natural products C1CC2C(=C)CC1C2(C)C XCPQUQHBVVXMRQ-UHFFFAOYSA-N 0.000 description 1
- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
- GFJIQNADMLPFOW-VNHYZAJKSA-N elemol Chemical compound CC(=C)[C@@H]1C[C@H](C(C)(C)O)CC[C@@]1(C)C=C GFJIQNADMLPFOW-VNHYZAJKSA-N 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (AREA)
Abstract
【解決手段】テルペンアルコール類を含有することを特徴とするピッチ除去剤、およびさらに下記一般式(I)で表されるポリオキシアルキレン基から構成される化合物を含有するピッチ除去剤。HO−(AO)n−H…(I)(但し、AOは炭素数2から4のオキシアルキレン基を表し、nは1から200の整数である。)
【選択図】なし
Description
HO−(AO)n−H …(I)
(但し、AOは炭素数2から4のオキシアルキレン基を表し、nは1から200の整数である。)
テルペンアルコール類との性能比較を行う為、表3に示した比較例化合物を使用した。
テルペンアルコール類との性能比較を行うため、一般的に抄紙工程で用いられている市販品のアニオン系またはカチオン系ピッチコントロール剤を供試した。
(成分E:ポリオキシアルキレン基から構成される化合物)
原料古紙を3cm×3cmに切断し卓上離解機に入れ、苛性ソーダを0.5重量%(対古紙)、高級アルコール系脱墨剤としてネオスコアFW−467(東邦化学工業(株)品)を0.1重量%加えた後、水を加え、古紙濃度を5重量%とし40℃に昇温後10分間離解した。離解後100メッシュフィルターにて古紙濃度を30重量%とした後、苛性ソーダを1.5重量%(対古紙)、3号ケイ酸ソーダを2重量%(対古紙)、35%過酸化水素水を2重量%(対古紙)、実施例または比較例に示した脱墨剤を0.1重量%(対古紙)加え、ソーキング前添加の場合は本発明のピッチ除去剤を0.2重量%加え、PFIミルにてクリアランス幅0.6mm、300回転で高濃度分散処理を行った。分散処理後、60℃で2時間熟成してから試験用原料(以下ソーキング後原料)を得た。
得られた脱墨前原料をパルプ濃度1重量%に希釈した後、本発明のピッチ除去剤をフローテーション処理前に添加する場合は希釈後にピッチ除去剤を0.2重量%加えてフローテーション前原料(以下FT前原料)を得た。FT前原料は、株式会社IHIフォイトペーパーテクノロジー製MT5Lフローテーターを使用してフローテーション処理を10分間行い、フローテーション後原料(以下FT後原料)を得た。得られたFT後原料を100メッシュフィルターで10重量%に脱水濃縮した後、脱墨処理後原料(以下完成原料)を得た。また、脱水濃縮時に得られた搾取白水(以下白水)を得た。
脱墨試験方法1に従い、脱墨試験を実施してFT前原料、FT後原料、完成原料を得た。得られた原料をそれぞれ105℃、24時間乾燥処理(以下、絶乾処理)を行った。得られた各工程の絶乾処理を行った原料を10g採取し、三角フラスコに入れ、併せて抽出溶剤としてクロロホルムを100ml投入した。投入後、約70℃で1時間攪拌を行い、抽出溶剤を濾別した。本操作を5回繰返した後、抽出溶剤を除去し、得られた溶剤抽出分をピッチ量として、除去率を下記式より算出した。
脱墨試験方法1に従い脱墨試験を実施し、得られた白水500mLをオートクレーブに投入後、容器内を密閉とし、空気にて0.4MPaまで加圧後、30℃、300rpm、15分間で撹拌した。撹拌終了後、容器内を大気圧に開放し15分間静置した。静置後、容器下部より白水を250ml抜き取り、これを白水の下層液とした。容器内に残った白水250mlは上澄液として回収した。上澄液、下層液はそれぞれ分液ロートを用いてクロロホルムを抽出用バイトして3回抽出を行った。抽出後、得られたクロロホルム層から溶媒を留去して得られた抽出分を白水中のピッチ量とした。
なお、ピッチ除去率は下記式に基づいて算出した。
本試験は製紙会社実機における加圧浮上方式での用水回収を想定したものであり、下層液に相当する液を系内に戻し、再利用する事からピッチ量は下層液よりも上澄液に多く存在する事が望ましい。
加圧浮上方式を想定した試験においても本発明のピッチ除去剤はフローテーション方式と同様に高いピッチ除去性を示した。
上記事項より本発明のピッチ除去剤は異物排出を行う際、フローテーション等の浮遊選鉱技術を利用したピッチ除去方法に対して高い効果を示す事が確認された。
Claims (4)
- テルペンアルコール類を含有することを特徴とするピッチ除去剤。
- さらに下記一般式(I)で表されるポリオキシアルキレン基から構成される化合物を含有する請求項1に記載のピッチ除去剤。
HO−(AO)n−H …(I)
(但し、AOは炭素数2から4のオキシアルキレン基を表し、nは1から200の整数である。) - パルプ搾水の処理工程において、請求項1又は2に記載のピッチ除去剤を用いてピッチ成分を分離除去することを特徴とする、パルプ又は紙類の製造方法。
- 古紙原料を脱インキ処理して製造する脱墨パルプの製造過程で、パルプ中に含まれるピッチ成分を除去する方法として請求項1又は2に記載のピッチ除去剤を用いることを特徴とする、脱墨パルプの製造方法。
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JP2017125266A (ja) * | 2016-01-12 | 2017-07-20 | 王子ホールディングス株式会社 | 脱墨古紙パルプの製造方法及び製造システム |
EP3767029A4 (en) * | 2018-03-14 | 2021-12-15 | Kurita Water Industries Ltd. | METHOD FOR PREVENTING RESIN DEPOSIT |
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JPH0873892A (ja) * | 1994-09-06 | 1996-03-19 | Nikka Chem Co Ltd | 抄紙用フェルト洗浄剤 |
JP2007277768A (ja) * | 2006-04-07 | 2007-10-25 | Toho Chem Ind Co Ltd | 脱墨方法及び脱墨剤 |
JP2009275297A (ja) * | 2008-05-12 | 2009-11-26 | Chuetsu Pulp Kogyo Kk | 脱インキパルプの製造方法およびそれに用いる脱インキ助剤 |
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JPS54110652A (en) * | 1978-01-28 | 1979-08-30 | Voith Gmbh J M | Method for purifying washing water or waste water formed in case when used paper is selected |
JPH0873892A (ja) * | 1994-09-06 | 1996-03-19 | Nikka Chem Co Ltd | 抄紙用フェルト洗浄剤 |
JP2007277768A (ja) * | 2006-04-07 | 2007-10-25 | Toho Chem Ind Co Ltd | 脱墨方法及び脱墨剤 |
JP2009275297A (ja) * | 2008-05-12 | 2009-11-26 | Chuetsu Pulp Kogyo Kk | 脱インキパルプの製造方法およびそれに用いる脱インキ助剤 |
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JP2017125266A (ja) * | 2016-01-12 | 2017-07-20 | 王子ホールディングス株式会社 | 脱墨古紙パルプの製造方法及び製造システム |
EP3767029A4 (en) * | 2018-03-14 | 2021-12-15 | Kurita Water Industries Ltd. | METHOD FOR PREVENTING RESIN DEPOSIT |
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