JP2014224029A5 - - Google Patents

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JP2014224029A5
JP2014224029A5 JP2014044751A JP2014044751A JP2014224029A5 JP 2014224029 A5 JP2014224029 A5 JP 2014224029A5 JP 2014044751 A JP2014044751 A JP 2014044751A JP 2014044751 A JP2014044751 A JP 2014044751A JP 2014224029 A5 JP2014224029 A5 JP 2014224029A5
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integer
lime mud
dehydrating
carbon atoms
alkyl group
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JP2014044751A
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JP5846234B2 (en
JP2014224029A (en
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Priority to JP2014044751A priority Critical patent/JP5846234B2/en
Priority claimed from JP2014044751A external-priority patent/JP5846234B2/en
Priority to PCT/JP2014/059850 priority patent/WO2014175035A1/en
Priority to CN201480023030.2A priority patent/CN105143116B/en
Publication of JP2014224029A publication Critical patent/JP2014224029A/en
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Claims (6)

下記一般式（１）
Ｒ1Ｏ〔ＣＨ2ＣＨ（ＣＨ3）Ｏ〕m〔ＣＨ2ＣＨ2Ｏ〕nＨ…（１）
（式中のＲ1は炭素数１２〜１６の直鎖及び／又は分岐アルキル基、ｍは７〜９の整数、ｎは１〜４の整数を示す。）
で表されるポリオキシエチレンポリオキシプロピレンアルキルエーテルを含む、石灰泥の脱水助剤。 The following general formula (1)
R 1 O [CH 2 CH (CH 3 ) O] m [CH 2 CH 2 O] n H (1)
(In the formula, R 1 is a linear and / or branched alkyl group having 12 to 16 carbon atoms, m is an integer of 7 to 9 , and n is an integer of 1 to 4. )
A dehydration aid for lime mud, comprising polyoxyethylene polyoxypropylene alkyl ether represented by: 紙及び／又はパルプ製造における苛性化工程において生成する、２０℃以上６０℃以下の石灰泥に、請求項１に記載の石灰泥の脱水助剤を添加する工程を含む、石灰泥の脱水方法。 A method for dehydrating lime mud, comprising a step of adding the lime mud dewatering aid according to claim 1 to lime mud of 20 ° C or higher and 60 ° C or lower, which is generated in a causticizing step in paper and / or pulp production. 紙及び／又はパルプ製造における苛性化工程において生成する石灰泥の温度を測定する温度測定工程と、
前記石灰泥の温度が２０℃以上５０℃未満のときには請求項１に記載の脱水助剤を選択し、
前記石灰泥の温度が５０℃以上６０℃以下のときには、請求項１に記載の脱水助剤及び一般式（１）において、Ｒ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜３の整数、ｎは６〜９の整数である脱水助剤の少なくとも１種を選択し、
前記石灰泥の温度が６０℃を超え８５℃以下のときには、一般式（１）において、Ｒ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜３の整数、ｎは６〜９の整数である脱水助剤を選択する、脱水助剤の選択工程と、
前記石灰泥に、選択された脱水助剤を添加する工程と、
前記脱水助剤が添加された石灰泥を脱水して脱水ケーキを得る脱水工程と、
を含む、石灰泥の脱水方法。 A temperature measuring step for measuring the temperature of lime mud produced in the causticizing step in paper and / or pulp production;
When the temperature of the lime mud is 20 ° C. or higher and lower than 50 ° C., the dehydrating aid according to claim 1 is selected,
Wherein when the temperature of the lime mud is 50 ° C. or higher 60 ° C. or less, dehydrating aid and general formula of claim 1 (1), R 1 is straight-chain and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 3, n is an integer of 6 to 9, and at least one dehydration aid is selected,
When the temperature of the lime mud is higher than 60 ° C. and lower than 85 ° C. , in the general formula (1), R 1 is a linear and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 3, n Selecting a dehydrating aid that is an integer from 6 to 9 ,
Adding a selected dehydration aid to the lime mud;
A dehydration step of dehydrating the lime mud to which the dehydration aid has been added to obtain a dehydrated cake;
A method for dehydrating lime mud. 紙及び／又はパルプ製造における苛性化工程において生成する石灰泥を脱水する方法であって、
一般式（１）においてＲ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜１０の整数、ｎは１〜１０の整数である脱水助剤、
請求項１に記載の脱水助剤、及び、
一般式（１）においてＲ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜３の整数、ｎは６〜９の整数である脱水助剤、
のいずれかを、スラッジフィルター送り配管中のポンプサクション又はスラッジフィルターのシャワー水中に添加する工程を含む、請求項２又は３に記載の石灰泥の脱水方法。 A method for dewatering lime mud produced in a causticizing step in paper and / or pulp production,
In general formula (1), R 1 is a linear and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 10, and n is an integer of 1 to 10,
Dehydration aid according to claim 1, and
In general formula (1), R 1 is a linear and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 3, and n is an integer of 6 to 9,
One of, comprising the step of adding to the shower water pump suction or sludge filter sludge filter feed piping, dehydration process lime mud according to claim 2 or 3. 紙及び／又はパルプ製造における苛性化工程において生成する石灰泥を脱水する方法であって、
一般式（１）においてＲ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜１０の整数、ｎは１〜１０の整数である脱水助剤、
請求項１に記載の脱水助剤、及び、
一般式（１）においてＲ 1 は炭素数１０〜１８の直鎖及び／又は分岐アルキル基、ｍは１〜３の整数、ｎは６〜９の整数である脱水助剤、
のいずれかを、スラッジフィルターのシャワー水中に添加する工程を含む、請求項２又は３に記載の石灰泥の脱水方法。 A method for dewatering lime mud produced in a causticizing step in paper and / or pulp production,
In general formula (1), R 1 is a linear and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 10, and n is an integer of 1 to 10,
Dehydration aid according to claim 1, and
In general formula (1), R 1 is a linear and / or branched alkyl group having 10 to 18 carbon atoms, m is an integer of 1 to 3, and n is an integer of 6 to 9,
Either a, comprising the step of adding to the shower water sludge filter, method of dehydrating lime mud according to claim 2 or 3. 紙及び／又はパルプ製造における苛性化工程が、クラフトパルプ製造における苛性化工程である、請求項２〜５のいずれか一項に記載の石灰泥の脱水方法。 The method for dehydrating lime mud according to any one of claims 2 to 5 , wherein the causticizing step in paper and / or pulp production is a causticizing step in kraft pulp production.
JP2014044751A 2013-04-25 2014-03-07 Lime mud dewatering aid and lime mud dewatering method using the same Active JP5846234B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014044751A JP5846234B2 (en) 2013-04-25 2014-03-07 Lime mud dewatering aid and lime mud dewatering method using the same
PCT/JP2014/059850 WO2014175035A1 (en) 2013-04-25 2014-04-03 Aid for dewatering lime mud and method for dewatering lime mud using said aid
CN201480023030.2A CN105143116B (en) 2013-04-25 2014-04-03 The chemical conditioner of lime mud and use its dewatering of lime mud

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013092777 2013-04-25
JP2013092777 2013-04-25
JP2014044751A JP5846234B2 (en) 2013-04-25 2014-03-07 Lime mud dewatering aid and lime mud dewatering method using the same

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JP2014224029A JP2014224029A (en) 2014-12-04
JP2014224029A5 true JP2014224029A5 (en) 2015-08-27
JP5846234B2 JP5846234B2 (en) 2016-01-20

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WO (1) WO2014175035A1 (en)

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Publication number Priority date Publication date Assignee Title
CN112939418B (en) * 2021-01-27 2022-11-01 重庆四季金标科技有限公司 Sludge dewatering additive and using method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1037319A (en) * 1988-05-07 1989-11-22 山西省师范大学 The method of comprehensive utilization of urao
CN1063664A (en) * 1991-04-11 1992-08-19 青岛碱厂 A kind of method of washing heavy sodium hydrate filter cake
JP4562159B2 (en) * 2001-03-08 2010-10-13 伯東株式会社 How to dehydrate lime mud
JP2003340500A (en) * 2002-05-29 2003-12-02 Katayama Chem Works Co Ltd Dehydration accelerator for calcium carbonate slurry
JP4168156B2 (en) * 2003-01-08 2008-10-22 株式会社片山化学工業研究所 Accelerating dehydration of calcium carbonate slurry
JP4998982B2 (en) * 2006-08-07 2012-08-15 株式会社タイホーコーザイ Lime mud dehydration accelerator
CA2728521A1 (en) * 2008-06-20 2009-12-23 Carbon Engineering Limited Partnership Carbon dioxide capture
JP2010058072A (en) * 2008-09-05 2010-03-18 Hakuto Co Ltd Dehydration accelerator of lime sludge and dehydration acceleration method of lime sludge using the same
JP2012091072A (en) * 2010-10-22 2012-05-17 Hakuto Co Ltd Dehydration accelerator of lime sludge

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