JP2008088606A5 - - Google Patents

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JP2008088606A5
JP2008088606A5 JP2006271868A JP2006271868A JP2008088606A5 JP 2008088606 A5 JP2008088606 A5 JP 2008088606A5 JP 2006271868 A JP2006271868 A JP 2006271868A JP 2006271868 A JP2006271868 A JP 2006271868A JP 2008088606 A5 JP2008088606 A5 JP 2008088606A5
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stage
group
treatment
bleached pulp
producing bleached
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JP2006271868A
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JP4893210B2 (en
JP2008088606A (en
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リグノセルロース物質から得られたヘキセンウロン酸を含む製紙用化学パルプをモノ過硫酸で処理し、その後多段漂白処理して漂白パルプを製造する方法であって、モノ過硫酸処理時に、ＩＶ族、Ｖ族、ＶＩ族元素のイオンを共存させ、かつ、処理ｐＨが２〜４であることを特徴とする漂白パルプの製造方法。   A process for producing bleached pulp by treating a chemical pulp for papermaking containing hexeneuronic acid obtained from lignocellulosic material with monopersulfuric acid, followed by multistage bleaching. A method for producing bleached pulp, wherein ions of group VI elements coexist and the treatment pH is 2 to 4. 前記多段漂白段が、ＩＶ族、Ｖ族、ＶＩ族元素のイオンを共存させたモノ過硫酸処理、酸性での処理段、アルカリ性での処理段がこの順番で連続した処理から始まることを特徴とする請求項１記載の漂白パルプの製造方法。   The multi-stage bleaching stage is characterized in that monopersulfuric acid treatment in which ions of group IV, group V, and group VI elements coexist, an acid treatment stage, and an alkaline treatment stage start from continuous treatment in this order. The method for producing bleached pulp according to claim 1. 前記酸性の処理段が、オゾン段、もしくは二酸化塩素段、もしくはオゾン/二酸化塩素段であることを特徴とする請求項１または２記載の漂白パルプの製造方法。   The method for producing bleached pulp according to claim 1 or 2, wherein the acidic treatment stage is an ozone stage, a chlorine dioxide stage, or an ozone / chlorine dioxide stage. 前記アルカリ性の処理段が、アルカリ抽出段、酸素添加アルカリ抽出段、酸素過酸化水素添加アルカリ抽出段であることを特徴とする請求項１〜３のいずれかに記載の漂白パルプの製造方法。   The method for producing bleached pulp according to any one of claims 1 to 3, wherein the alkaline treatment stage is an alkali extraction stage, an oxygen addition alkali extraction stage, or an oxygen hydrogen peroxide addition alkali extraction stage. 前記、ＩＶ族、Ｖ族、ＶＩ族元素がモリブデンであることを特徴とする請求項１〜４のいずれかに記載の漂白パルプの製造方法。   The said IV group, V group, and VI group element are molybdenum, The manufacturing method of the bleached pulp in any one of Claims 1-4 characterized by the above-mentioned. 前記、モノ過硫酸による処理の温度が５０〜７０℃であることを特徴とする請求項１〜５のいずれかに記載の漂白パルプの製造方法。   The method for producing bleached pulp according to any one of claims 1 to 5, wherein the temperature of the treatment with monopersulfuric acid is 50 to 70 ° C.
JP2006271868A 2006-10-03 2006-10-03 Method for producing bleached pulp Active JP4893210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006271868A JP4893210B2 (en) 2006-10-03 2006-10-03 Method for producing bleached pulp

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Application Number Priority Date Filing Date Title
JP2006271868A JP4893210B2 (en) 2006-10-03 2006-10-03 Method for producing bleached pulp

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JP2008088606A JP2008088606A (en) 2008-04-17
JP2008088606A5 true JP2008088606A5 (en) 2009-11-05
JP4893210B2 JP4893210B2 (en) 2012-03-07

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011001637A (en) * 2009-06-16 2011-01-06 Mitsubishi Gas Chemical Co Inc Method for producing bleached pulp
JP2011001636A (en) * 2009-06-16 2011-01-06 Mitsubishi Gas Chemical Co Inc Method for producing bleached pulp
CN105579473A (en) * 2013-09-12 2016-05-11 三菱瓦斯化学株式会社 Method for producing cellulose
WO2015105030A1 (en) * 2014-01-10 2015-07-16 三菱瓦斯化学株式会社 Method for manufacturing cellulose
JP7100315B2 (en) * 2018-05-30 2022-07-13 三菱瓦斯化学株式会社 How to make bleached pulp
CN116507772A (en) * 2020-11-16 2023-07-28 三菱瓦斯化学株式会社 Method for producing bleached pulp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3402344B2 (en) * 1994-12-12 2003-05-06 三菱瓦斯化学株式会社 Delignification bleaching method of chemical pulp for papermaking.
PL332079A1 (en) * 1996-09-11 1999-08-30 Solvay Interox Sa Paper pulp bleaching method
JPH10219575A (en) * 1997-02-06 1998-08-18 Mitsubishi Gas Chem Co Inc Bleaching of chemical pulp for papermaking
JP4178394B2 (en) * 2003-05-28 2008-11-12 三菱瓦斯化学株式会社 Method for removing hexeneuronic acid from chemical pulp for papermaking

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