ID21443A - Proses produksi resin penyerap air - Google Patents

Proses produksi resin penyerap air

Info

Publication number
ID21443A
ID21443A IDP981526A ID981526A ID21443A ID 21443 A ID21443 A ID 21443A ID P981526 A IDP981526 A ID P981526A ID 981526 A ID981526 A ID 981526A ID 21443 A ID21443 A ID 21443A
Authority
ID
Indonesia
Prior art keywords
production process
water absorption
resin production
absorption resin
water
Prior art date
Application number
IDP981526A
Other languages
English (en)
Inventor
Takumi Hatsuda
Takashi Namba
Yoshihiro Motono
Original Assignee
Nippon Catalytic Chem Ind
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Catalytic Chem Ind filed Critical Nippon Catalytic Chem Ind
Publication of ID21443A publication Critical patent/ID21443A/id

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
IDP981526A 1997-12-10 1998-11-24 Proses produksi resin penyerap air ID21443A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34003097 1997-12-10

Publications (1)

Publication Number Publication Date
ID21443A true ID21443A (id) 1999-06-10

Family

ID=18333076

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP981526A ID21443A (id) 1997-12-10 1998-11-24 Proses produksi resin penyerap air

Country Status (7)

Country Link
US (1) US6174978B1 (id)
EP (1) EP0922717B1 (id)
KR (1) KR100348149B1 (id)
CN (1) CN1136233C (id)
DE (1) DE69828756T2 (id)
ID (1) ID21443A (id)
TW (1) TW473485B (id)

Families Citing this family (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941072A1 (de) * 1999-08-30 2001-03-01 Stockhausen Chem Fab Gmbh Polymerisatzusammensetzung und ein Verfahren zu dessen Herstellung
JP4679683B2 (ja) * 1999-11-02 2011-04-27 株式会社日本触媒 吸水性重合体の製造方法、及び該重合体の製造装置
EP1130045B2 (en) 2000-02-29 2015-10-28 Nippon Shokubai Co., Ltd. Process for producing a water-absorbent resin powder
US6906159B2 (en) * 2000-08-03 2005-06-14 Nippon Shokubai Co., Ltd. Water-absorbent resin, hydropolymer, process for producing them, and uses of them
ZA200106245B (en) * 2000-08-03 2002-02-08 Nippon Catalytic Chem Ind Water-absorbent resin, hydropolymer, process for producing them, and uses of them.
US6727345B2 (en) 2001-07-03 2004-04-27 Nippon Shokubai Co., Ltd. Continuous production process for water-absorbent resin powder and powder surface detector used therefor
US6716894B2 (en) 2001-07-06 2004-04-06 Nippon Shokubai Co., Ltd. Water-absorbent resin powder and its production process and uses
WO2003051415A1 (en) * 2001-12-19 2003-06-26 Nippon Shokubai Co., Ltd. Water-absorbent resin and production process therefor
EP1456258B1 (en) 2001-12-19 2009-04-01 Nippon Shokubai Co., Ltd. Water-absorbent resin and production process therefor
JP3905765B2 (ja) * 2002-01-30 2007-04-18 株式会社日本触媒 アクリル酸及びポリアクリル酸製造プロセス廃出物の処理方法
JP3905781B2 (ja) * 2002-03-20 2007-04-18 株式会社日本触媒 ポリアクリル酸の製造方法
CN100512885C (zh) 2002-06-06 2009-07-15 株式会社日本触媒 吸水剂组合物及其制造方法、吸收体和吸收性物品
JP4056336B2 (ja) * 2002-09-19 2008-03-05 株式会社日本触媒 アクリル酸及びアクリル酸エステルプロセス廃棄物の処理方法
JP4087682B2 (ja) * 2002-11-07 2008-05-21 株式会社日本触媒 吸水性樹脂の製造方法および製造装置
US7193006B2 (en) 2002-12-06 2007-03-20 Nippon Shokubai Co., Ltd. Process for continuous production of water-absorbent resin product
EP1433526A3 (en) 2002-12-26 2007-03-14 Nippon Shokubai Co., Ltd. Water-absorbent resin composition
JP4059845B2 (ja) * 2003-01-22 2008-03-12 株式会社日本触媒 温度制御した重合体の製造方法
BRPI0403938A (pt) 2003-02-10 2005-03-01 Nippon Catalytic Chem Ind Absorvente de água particulado contendo resina absorvente de água como principal componente, método de produzir um absorvente de água particulado e material sanitário para absorver fluido corporal
KR100687695B1 (ko) * 2003-02-12 2007-02-27 도아고세이가부시키가이샤 다공성 세라믹의 제조 방법
BRPI0411370B1 (pt) 2003-06-24 2018-04-10 Nippon Shokubai Co., Ltd. Composição de resina absorvente de água, absorvente, artigo absorvente, método para produzir uma composição de resina absorvente de água
TW200504137A (en) 2003-07-25 2005-02-01 Nippon Catalytic Chem Ind Water-absorbent resin composition and method for producing thereof, and absorbent material and absorbent product using thereof
MXPA06004345A (es) 2003-11-07 2006-06-27 Nippon Catalytic Chem Ind Composicion de resina absorbente de agua en particulas y su proceso de produccion.
EP1704771A1 (en) 2003-12-05 2006-09-27 Nippon Shokubai Co.,Ltd. Particulate water retaining material for cultivating plant having water absorbent resin as main component
US20070173610A1 (en) 2003-12-12 2007-07-26 Katsuyuki Wada Water-absorbing agent, manufacture method thereof, and absorbent and absorbent article made therefrom
US7473739B2 (en) 2004-02-05 2009-01-06 Nippon Shokubai Co., Ltd. Particulate water absorbent agent and production method thereof, and water absorbent article
EP1589040B1 (en) * 2004-03-24 2008-09-10 Nippon Shokubai Co., Ltd. Method for continuous production of water absorbent resin
WO2005092955A1 (en) 2004-03-29 2005-10-06 Nippon Shokubai Co., Ltd. Particulate water absorbing agent with irregularly pulverized shape
US7981833B2 (en) * 2004-03-31 2011-07-19 Nippon Shokubai Co., Ltd. Aqueous-liquid-absorbing agent and its production process
KR100807053B1 (ko) 2004-05-12 2008-02-25 니폰 쇼쿠바이 컴파니 리미티드 폐액 고화제, 그의 제조 방법 및 용도
ATE484298T1 (de) 2004-07-20 2010-10-15 Procter & Gamble Oberflächlich vernetzte superabsorbierende partikeln und verfahren zu ihrer herstellung
EP1669394A1 (en) 2004-12-10 2006-06-14 The Procter & Gamble Company Superabsorbent polymer particles with improved surface cross-linking and hydrophilicity and method of making them
JP4713167B2 (ja) * 2005-01-21 2011-06-29 株式会社日本触媒 吸水性樹脂の製造方法
DE102005014291A1 (de) * 2005-03-24 2006-09-28 Basf Ag Verfahren zur Herstellung wasserabsorbierender Polymere
TW200635969A (en) 2005-04-06 2006-10-16 Nippon Catalytic Chem Ind Particulate water absorbing agent, water-absorbent core and absorbing article
TWI344469B (en) 2005-04-07 2011-07-01 Nippon Catalytic Chem Ind Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin
DE602006012640D1 (de) 2005-04-12 2010-04-15 Nippon Catalytic Chem Ind Altend wasserabsorbierendes harz auf basis von polyacrylsäure (polyacrylat) als hauptkomponente, herstellungsverfahren dafür, wasserabsorbierender kerige wasserabsorbierende mittel verwendet wird
DE102005042607A1 (de) 2005-09-07 2007-03-08 Basf Ag Polymerisationsverfahren
EP1924353B1 (en) 2005-09-16 2012-11-14 Nippon Shokubai Kagaku Kogyo Co. Ltd. Method for production of water absorbing agent
TW200720347A (en) 2005-09-30 2007-06-01 Nippon Catalytic Chem Ind Water-absorbent agent composition and method for manufacturing the same
CN1330679C (zh) * 2005-10-28 2007-08-08 中国林业科学研究院林产化学工业研究所 两性离子高吸水树脂及其制备方法
CN100415786C (zh) * 2005-10-28 2008-09-03 中国林业科学研究院林产化学工业研究所 超强耐电解质高吸水树脂及其制备方法
TWI394789B (zh) 2005-12-22 2013-05-01 Nippon Catalytic Chem Ind 吸水性樹脂組成物及其製造方法、吸收性物品
EP1837348B9 (en) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Water-absorbing resin and method for manufacturing the same
US8703859B2 (en) 2006-03-27 2014-04-22 Nippon Shokubai Co., Ltd. Production method for water-absorbing resin composition
EP2042521A1 (en) 2006-03-29 2009-04-01 Nippon Shokubai Co., Ltd. Method of producing polyacrylic acid (salt) water-absorbent resin
WO2007119528A1 (ja) 2006-03-30 2007-10-25 Nippon Shokubai Co., Ltd. アクロレインの製造方法
JP2008115103A (ja) * 2006-11-02 2008-05-22 Nippon Shokubai Co Ltd アクリル酸の製造方法、アクリル酸製造用装置、およびアクリル酸製造用組成物
KR100805818B1 (ko) * 2006-11-24 2008-02-21 한양대학교 산학협력단 하이드로겔의 제조방법 및 이에 의하여 제조된하이드로겔의 용도
WO2008066079A1 (fr) 2006-12-01 2008-06-05 Nippon Shokubai Co., Ltd. Procédé de production d'un acide acrylique
EP2107939B2 (en) † 2007-01-16 2020-04-29 Basf Se Production of super absorbent polymers on a continuous belt reactor
CN101589066B (zh) 2007-01-24 2013-07-03 株式会社日本触媒 粒子状吸水性聚合物及其制造方法
CN102675522B (zh) 2007-02-05 2014-11-19 株式会社日本触媒 粒子状吸水剂的制造方法
WO2008102322A2 (en) 2007-02-22 2008-08-28 The Procter & Gamble Company Method of surface treating particulate material using electromagnetic radiation
EP2116572B1 (en) 2007-03-01 2016-09-07 Nippon Shokubai Co., Ltd. Granulated water absorbent containing water-absorbing resin as the main component
EP1987877A3 (en) 2007-03-29 2010-10-13 Nippon Shokubai Co., Ltd. Oxide catalyst, process for producing acrolein or acrylic acid and process for producing water-absorbent resin
EP2135669B1 (en) 2007-03-29 2019-10-30 Nippon Shokubai Co., Ltd. Particulate water absorbent and process for producing the same
CN101641153B (zh) 2007-04-05 2012-08-15 株式会社日本触媒 以吸水性树脂为主成分的粒子状吸水剂
JP4991471B2 (ja) 2007-05-16 2012-08-01 株式会社日本触媒 グリセリン脱水用触媒、およびアクロレインの製造方法
US8507626B2 (en) * 2007-06-13 2013-08-13 Nippon Shokubai Co., Ltd. Catalyst for producing of acrylic acid, method for producing acrylic acid using the catalyst and method for producing water-absorbent resin using the acrylic acid
SA08290402B1 (ar) 2007-07-04 2014-05-22 نيبون شوكوباي كو. ، ليمتد عامل دقائقي ماص للماء وطريقة لتصنيعه
SA08290542B1 (ar) 2007-08-28 2012-11-14 نيبون شوكوباي كو. ، ليمتد طريقة لإنتاج راتنج ماص للماء
EP2261196B1 (en) 2008-04-09 2014-01-15 Nippon Shokubai Co., Ltd. Process for the production of acrolein and/or acrylic acid
CN102007170B (zh) 2008-04-11 2014-06-25 株式会社日本触媒 吸水性树脂的表面处理方法和吸水性树脂的制造方法
EP2275400B1 (en) 2008-04-27 2017-01-11 Nippon Shokubai Co., Ltd. Process for producing acrylic acid, and process for producing hydrophilic resin and process for producing water absorptive resin using the process
CN101423577B (zh) * 2008-12-10 2010-06-23 娄底市裕德科技有限公司 聚丙烯酸或聚丙烯酸钠的制备方法
SG172273A1 (en) 2008-12-26 2011-07-28 Nippon Catalytic Chem Ind Process for producing acrylic acid
JP5718060B2 (ja) 2009-02-06 2015-05-13 株式会社日本触媒 ポリアクリル酸（塩）系親水性樹脂およびその製造方法
JP5615801B2 (ja) 2009-03-04 2014-10-29 株式会社日本触媒 吸水性樹脂の製造方法
US9175143B2 (en) 2009-03-31 2015-11-03 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbent resin
WO2011040472A1 (ja) 2009-09-29 2011-04-07 株式会社日本触媒 粒子状吸水剤及びその製造方法
US10294315B2 (en) 2009-09-30 2019-05-21 Nippon Shokubai Co., Ltd. Polyacrylic acid (salt)-based water absorbent resin and method for producing same
EP2554258A4 (en) 2010-03-31 2014-08-06 Nippon Catalytic Chem Ind GLYCEROL DEHYDRATION CATALYST AND PROCESS FOR PRODUCING ACROLEIN, PROCESS FOR PRODUCING ACRYLIC ACID, AND PROCESS FOR PRODUCING HYDROPHILIC RESIN, EACH USING THE CATALYST
JP5587409B2 (ja) 2010-06-08 2014-09-10 株式会社日本触媒 粒子状吸水性樹脂の製造方法
WO2012002455A1 (ja) 2010-06-30 2012-01-05 株式会社日本触媒 ポリアクリル酸系吸水性樹脂及びその製造方法
CN109225176A (zh) 2010-09-30 2019-01-18 株式会社日本触媒 颗粒状吸水剂及其制造方法
WO2012091114A1 (ja) 2010-12-28 2012-07-05 株式会社日本触媒 アクリル酸および／またはそのエステルおよびその重合体の製法
US9567414B2 (en) 2011-01-28 2017-02-14 Nippon Shokubai Co., Ltd. Method for producing polyacrylic acid (salt)-based water absorbent resin powder
CN102675548B (zh) * 2011-03-11 2014-07-09 河北科技师范学院 热致型高分子形状记忆材料
WO2012144595A1 (ja) 2011-04-20 2012-10-26 株式会社日本触媒 ポリアクリル酸（塩）系吸水性樹脂の製造方法および製造装置
CN103827070A (zh) 2011-09-29 2014-05-28 株式会社日本触媒 丙烯醛、丙烯酸及其衍生物的制备方法
EP2781259B1 (en) 2011-11-15 2021-07-07 Nippon Shokubai Co., Ltd. Water absorbent composition and method for producing same, as well as storage and stocking method for same
JP6173314B2 (ja) 2012-06-27 2017-08-02 株式会社日本触媒 （メタ）アクリル酸の製造方法、及び、親水性樹脂の製造方法
WO2014034667A1 (ja) 2012-08-27 2014-03-06 株式会社日本触媒 粒子状吸水剤及びその製造方法
KR102269376B1 (ko) 2012-08-30 2021-06-25 가부시키가이샤 닛폰 쇼쿠바이 입자상 흡수제 및 그의 제조 방법
EP2896645B1 (en) 2012-09-11 2019-12-11 Nippon Shokubai Co., Ltd. Method for manufacturing polyacrylic acid (polyacrylate)-based water-absorbent agent, and water-absorbent agent
WO2014041969A1 (ja) 2012-09-11 2014-03-20 株式会社日本触媒 ポリアクリル酸（塩）系吸水剤の製造方法及びその吸水剤
WO2014054656A1 (ja) 2012-10-01 2014-04-10 株式会社日本触媒 多元金属化合物からなる粉塵低減剤、多元金属化合物を含む吸水剤及びその製造方法
EP2905072B1 (en) 2012-10-03 2018-05-30 Nippon Shokubai Co., Ltd. Absorbent and manufacturing method therefor
WO2014078919A1 (pt) 2012-11-26 2014-05-30 Braskem S.A. Catalisador metaloceno suportado em suporte híbrido, processo de obtenção do mesmo, processo de polimerização para obtenção de um homopolímero ou copolímero de etileno com distribuição de massa molar ampla ou bimodal, uso do catalisador de metaloceno suportado e polímero de etileno com distribuição de massa molar ampla ou bimodal
EP2952537B1 (en) 2013-01-29 2021-10-27 Nippon Shokubai Co., Ltd. Water-absorbable resin material and method for producing same
EP2975065A4 (en) 2013-03-11 2016-11-16 Sumitomo Seika Chemicals METHOD FOR PRODUCING A WATER ABSORBENT RESIN
JP2017006808A (ja) 2013-11-14 2017-01-12 株式会社日本触媒 ポリアクリル酸（塩）系吸水性樹脂の製造方法
US10646612B2 (en) 2013-12-20 2020-05-12 Nippon Shokubai Co., Ltd. Polyacrylic acid (salt) water absorbent, and method for producing same
CN106255708B (zh) 2014-04-25 2019-12-27 株式会社日本触媒 聚丙烯酸(盐)系吸水性树脂的制造方法
US10648731B2 (en) * 2015-05-08 2020-05-12 Basf Se Production method for producing water-absorbing polymer particles and belt dryer
WO2018062539A1 (ja) 2016-09-30 2018-04-05 株式会社日本触媒 吸水性樹脂組成物
US11931928B2 (en) * 2016-12-29 2024-03-19 Evonik Superabsorber Llc Continuous strand superabsorbent polymerization
CN107176597B (zh) * 2017-06-30 2019-12-27 上海化工研究院有限公司 一种粉粒状水溶性聚磷酸铵的连续生产方法
US20210115198A1 (en) * 2018-05-16 2021-04-22 Nippon Shokubai Co., Ltd. Water-absorbent resin powder and production method thereof
US20220212995A1 (en) 2019-04-09 2022-07-07 Nippon Shokubai Co., Ltd. Cement additive, cement admixture, cement composition, molded body, and method for improving strength of molded body
EP3995515A4 (en) * 2019-07-05 2023-07-05 Sumitomo Seika Chemicals Co., Ltd. CROSSLINKED POLYMER GEL, METHOD OF PRODUCTION, MONOMER COMPOSITION AND METHOD OF PRODUCTION OF CROSSLINKED POLYMER PARTICLES
CN111303354B (zh) * 2020-02-27 2023-05-26 河北工程大学 一种可用于复合高吸水树脂制备的“梯度引发”方法
JP7513771B2 (ja) 2021-02-15 2024-07-09 株式会社日本触媒 収縮低減剤及びセメント組成物
WO2024132670A1 (de) 2022-12-20 2024-06-27 Basf Se Verfahren zur herstellung von superabsorbern
WO2024132671A1 (de) 2022-12-20 2024-06-27 Basf Se Verfahren zur herstellung von superabsorbern

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985518A (en) 1981-10-26 1991-01-15 American Colloid Company Process for preparing water-absorbing resins
US4552938A (en) 1981-10-26 1985-11-12 American Colloid Company Process for preparing dry solid water absorbing polyacrylate resin
US4555384A (en) * 1982-09-24 1985-11-26 Cosden Technology, Inc. Apparatus for producing styrenic/alkenylnitrile copolymers
DE3544770A1 (de) 1985-12-18 1987-06-19 Stockhausen Chem Fab Gmbh Verfahren und vorrichtung zum kontinuierlichen herstellen von polymerisaten und copolymerisaten der acrylsaeure und/oder methacrylsaeure
KR0130652B1 (ko) 1987-08-14 1998-04-07 존 휴즈 수분 흡수성 수지의 제조 방법
JPH0696619B2 (ja) 1989-09-28 1994-11-30 三洋化成工業株式会社 高吸水性ポリマー組成物及びその製造方法ならびにそれからなる高吸水性物品
US5145906A (en) 1989-09-28 1992-09-08 Hoechst Celanese Corporation Super-absorbent polymer having improved absorbency properties
ES2070369T3 (es) 1990-07-17 1995-06-01 Sanyo Chemical Ind Ltd Procedimiento para la fabricacion de resinas absorbentes de agua.
JPH04175319A (ja) 1990-07-17 1992-06-23 Sanyo Chem Ind Ltd 吸水性樹脂の製造法
JPH04236203A (ja) * 1991-01-19 1992-08-25 Sanyo Chem Ind Ltd 吸水性ヒドロゲル成形物の製造法

Also Published As

Publication number Publication date
KR19990062939A (ko) 1999-07-26
DE69828756D1 (de) 2005-03-03
KR100348149B1 (ko) 2002-11-29
EP0922717A1 (en) 1999-06-16
US6174978B1 (en) 2001-01-16
DE69828756T2 (de) 2005-12-29
EP0922717B1 (en) 2005-01-26
CN1136233C (zh) 2004-01-28
TW473485B (en) 2002-01-21
CN1224024A (zh) 1999-07-28

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