PH31924A - - Google Patents

Info

Publication number
PH31924A
PH31924A PH52223A PH52223A PH31924A PH 31924 A PH31924 A PH 31924A PH 52223 A PH52223 A PH 52223A PH 52223 A PH52223 A PH 52223A PH 31924 A PH31924 A PH 31924A
Authority
PH
Philippines
Application number
PH52223A
Other languages
English (en)
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 filed Critical
Publication of PH31924A publication Critical patent/PH31924A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/50—Use of additives, e.g. for stabilisation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/22—Accessories

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
PH52223A 1994-05-31 1996-01-26 PH31924A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/251,762 US5571386A (en) 1994-05-31 1994-05-31 Process for grade acrylic acid
BR9502593A BR9502593A (pt) 1994-05-31 1995-05-29 Processo continuo para produzir um ácido acrilico do tipo puro

Publications (1)

Publication Number Publication Date
PH31924A true PH31924A (ja) 1998-04-02

Family

ID=32178072

Family Applications (1)

Application Number Title Priority Date Filing Date
PH52223A PH31924A (ja) 1994-05-31 1996-01-26

Country Status (12)

Country Link
US (2) US5571386A (ja)
EP (1) EP0685448B1 (ja)
JP (1) JP3682092B2 (ja)
KR (1) KR100368886B1 (ja)
CN (1) CN1114303A (ja)
BR (1) BR9502593A (ja)
CA (1) CA2150209A1 (ja)
CZ (1) CZ127995A3 (ja)
DE (1) DE69502053T2 (ja)
ES (1) ES2117832T3 (ja)
PH (1) PH31924A (ja)
TW (1) TW453989B (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5759358A (en) * 1994-05-31 1998-06-02 Rohm And Haas Company Process for pure grade acrylic acid
US5961790A (en) * 1994-12-14 1999-10-05 Basf Aktiengesellschaft Separation of (meth) acrylic acid by rectification
FR2753445B1 (fr) * 1996-09-16 1998-10-30 Atochem Elf Sa Procede perfectionne de purification de l'acide acrylique
US5877345A (en) * 1997-02-07 1999-03-02 Rohm And Haas Company Process for producing butyl acrylate
US6180827B1 (en) 1998-02-03 2001-01-30 Hfm International, Inc. Recovery of acrylic acid from process or waste water streams
DE60000708T2 (de) * 1999-06-28 2003-07-24 Rohm & Haas Verfahren zur Herstellung von (Meth)acrylsäure
US6277289B1 (en) * 1999-07-01 2001-08-21 E. I. Du Pont De Nemours And Company Treatment of aqueous aldehyde waste streams
JP4361995B2 (ja) * 1999-12-22 2009-11-11 株式会社日本触媒 アクリル酸の精製方法
JP4601120B2 (ja) * 2000-05-08 2010-12-22 出光興産株式会社 アクリル酸の製造方法
US6927268B2 (en) * 2000-06-21 2005-08-09 Nippon Shokubai Co., Ltd. Production process for water-absorbent resin
JP4659988B2 (ja) * 2001-02-06 2011-03-30 株式会社日本触媒 機器の冷却方法
CN1263725C (zh) * 2001-10-30 2006-07-12 三菱化学株式会社 （甲基）丙烯酸的精制方法
CN100379776C (zh) * 2002-02-06 2008-04-09 株式会社日本触媒 在非稳定状态下冷却加热用换热器的方法
US20040222154A1 (en) * 2003-05-08 2004-11-11 E.I.Du Pont De Nemours & Company Treatment of non-aqueous aldehyde waste streams
US7393976B2 (en) * 2003-11-26 2008-07-01 Rohm And Haas Company Process for manufacturing reduced water content (meth)acrylic acid
CN101048704B (zh) * 2004-11-02 2011-04-13 陶氏康宁公司 抗蚀剂组合物
JP5113988B2 (ja) * 2005-03-31 2013-01-09 株式会社日本触媒 セメント混和剤用ポリカルボン酸系ポリマー
TW200704650A (en) * 2005-04-12 2007-02-01 Nippon Catalytic Chem Ind Particulate water absorbing agent including polyacrylic acid (polyacrylate) based water absorbing resin as a principal component, method for production thereof, water-absorbent core and absorbing article in which the particulate water absorbing agent is
JP2007191435A (ja) * 2006-01-19 2007-08-02 Nippon Shokubai Co Ltd （メタ）アクリル酸の製造方法
FR2957594B1 (fr) * 2010-03-18 2013-04-26 Arkema France Procede de fabrication d'acide acrylique bio-ressource de grade polymere a partir de glycerol
TWI433836B (zh) 2011-06-03 2014-04-11 Rohm & Haas 用於減少（甲基）丙烯酸酯純化期間之積垢之方法
EP2754649A1 (en) * 2013-01-10 2014-07-16 Saudi Basic Industries Corporation Method for determinng impurity concentration in terephthalic acid
CN105026355A (zh) * 2013-03-15 2015-11-04 罗门哈斯公司 纯化(甲基)丙烯酸的方法
FR3041958B1 (fr) 2015-10-06 2019-06-14 Arkema France Procede ameliore de production d’acide (meth)acrylique de grade polymere
FR3064630B1 (fr) * 2017-04-04 2019-09-13 Arkema France Procede de purification d'acide (meth)acrylique incluant une colonne de distillation a paroi separatrice
KR20220078268A (ko) * 2020-12-03 2022-06-10 주식회사 엘지화학 아크릴산의 제조 공정

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028183B2 (de) * 1969-06-10 1975-09-11 Rohm And Haas Co., Philadelphia, Pa. (V.St.A.) Verfahren zur Inhibierung der Polymerisation von Acrylsäure bei der Destillation
US3725208A (en) * 1971-08-20 1973-04-03 Nippon Kayaku Kk Process for purification of acrylic acid from aldehydes by distillation with a reagent
CA962698A (en) * 1972-01-31 1975-02-11 The Standard Oil Company Process for purification of acrylic acid
DE2235326A1 (de) * 1972-07-19 1974-02-07 Degussa Verfahren zur reinigung 1,2-ungesaettigter carbonsaeuren
JPS518214A (en) * 1974-07-10 1976-01-23 Toa Gosei Chem Ind 22 hidorokishiarukiruakurireeto mataha metakurireetono seizoho
DE3641996A1 (de) * 1986-12-09 1988-06-16 Basf Ag Verfahren zum abtrennen von aldehyden aus (alpha),(beta)-olefinisch ungesaettigten carbonsaeuren
JPS63312191A (ja) * 1987-06-15 1988-12-20 Ricoh Co Ltd 感熱記録型平版印刷原版
EP0312191B1 (en) * 1987-10-09 1992-09-16 MITSUI TOATSU CHEMICALS, Inc. Process for purifying methacrylic acid
JPH0324459A (ja) * 1989-06-22 1991-02-01 Fuji Photo Film Co Ltd 被検査液収容装置
US5208370A (en) * 1992-04-22 1993-05-04 Rohm And Haas Co. Method of reducing impurities in aqueous acrylic monomer solutions

Also Published As

Publication number Publication date
MX9502339A (ja) 2002-01-01
DE69502053D1 (de) 1998-05-20
JP3682092B2 (ja) 2005-08-10
US5746892A (en) 1998-05-05
EP0685448B1 (en) 1998-04-15
EP0685448A1 (en) 1995-12-06
JPH07330659A (ja) 1995-12-19
CN1114303A (zh) 1996-01-03
MX211646B (ja) 2002-11-27
KR950032058A (ko) 1995-12-20
TW453989B (en) 2001-09-11
CZ127995A3 (en) 1996-04-17
BR9502593A (pt) 1997-08-26
KR100368886B1 (ko) 2003-06-09
DE69502053T2 (de) 1998-12-03
ES2117832T3 (es) 1998-08-16
CA2150209A1 (en) 1995-12-01
US5571386A (en) 1996-11-05

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