MY140475A - Method for the regulation of a hydraulic wash column - Google Patents

Method for the regulation of a hydraulic wash column

Info

Publication number
MY140475A
MY140475A MYPI20061815A MYPI20061815A MY140475A MY 140475 A MY140475 A MY 140475A MY PI20061815 A MYPI20061815 A MY PI20061815A MY PI20061815 A MYPI20061815 A MY PI20061815A MY 140475 A MY140475 A MY 140475A
Authority
MY
Malaysia
Prior art keywords
wash column
regulation
column
hydraulic wash
points
Prior art date
Application number
MYPI20061815A
Inventor
Heilek Jorg
Muller-Engel Klaus Dr Joachim
Hammon Dr Ulrich
Walter Thomas
Original Assignee
Basf Ag
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
Priority claimed from DE102005018702A external-priority patent/DE102005018702A1/en
Application filed by Basf Ag filed Critical Basf Ag
Publication of MY140475A publication Critical patent/MY140475A/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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Soy Sauces And Products Related Thereto (AREA)
  • Special Spraying Apparatus (AREA)

Abstract

A PROCESS FOR OPERATING A HYDRAULIC WASH COLUMN, IN WHICH THE POSITION OF THE BUILDUP FRONT IN THE WASH COLUMN IS POSITIONED BY MEANS OF THE FLOW RATES OF CONTROL LIQUOR CONDUCTED INTO THE WASH COLUMN AND/OR BY MEANS OF THE FLOW RATE OF THE SUSPENSION CONDUCTED INTO THE WASH COLUMN, AND THE FLOW RATE DETERMINATION IS WITH THE AID OF THE PRESSURE DIFFERENCE WHICH EXISTS IN THE COLUMN BETWEEN POINTS IN THE SUSPENSION ZONE DISPOSED UPSTREAM OF THE BUILDUP FRONT AND POINTS IN THE ZONE PROJECTING FROM THE BUILDUP FRONT UP TO THE END OF THE CRYSTAL BED.
MYPI20061815A 2005-04-21 2006-04-20 Method for the regulation of a hydraulic wash column MY140475A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67333905P 2005-04-21 2005-04-21
DE102005018702A DE102005018702A1 (en) 2005-04-21 2005-04-21 Process to control hydraulic wash column, comprises feeding mother liquor, conducting liquor to filter tube, feeding control liquor to wash column, purifying liquor, transporting crystal bed, removing crystal and determining flow rate

Publications (1)

Publication Number Publication Date
MY140475A true MY140475A (en) 2009-12-31

Family

ID=36646158

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20061815A MY140475A (en) 2005-04-21 2006-04-20 Method for the regulation of a hydraulic wash column

Country Status (8)

Country Link
EP (1) EP1874422B1 (en)
JP (1) JP5215843B2 (en)
AT (1) ATE410210T1 (en)
BR (1) BRPI0608378B1 (en)
DE (1) DE502006001765D1 (en)
MY (1) MY140475A (en)
RU (1) RU2417813C2 (en)
WO (1) WO2006111565A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004960A1 (en) 2007-01-26 2008-07-31 Basf Se Production of acrylic acid by partial gas phase oxidation, for use e.g. as monomer, includes extracting acrylic acid with organic solvent from acidic stream obtained in purification column
DE102007055086A1 (en) 2007-11-16 2009-05-20 Basf Se Manufacture of acrylic acid involves subjecting precursor to heterogeneously catalyzed gas phase partial oxidation with oxygen in catalyst, reducing gas mixture, and subjecting crude acrylic acid to thermal separation process
DE102007043758A1 (en) 2007-09-13 2008-10-23 Basf Se Target product continuous separating operation in form of fine crystals from liquid phase, includes heat exchanger having secondary space and primary space
DE102007043748A1 (en) 2007-09-13 2008-09-11 Basf Se Method for separating target product i.e. acrylic acid, methacrylic acid, p-xylene or N-vinylpyrrolidone in form of fine crystallized product, involves utilizing heat exchanger, where heat flow is gathered from heat exchanger
BE1018537A3 (en) 2007-09-13 2011-03-01 Basf Se METHOD FOR OPERATING A CONTINUOUS SEPARATION OF TARGET PRODUCT X IN THE FORM OF A FINALLY DIVIDED CRYSTALLISATE
DE102007043759A1 (en) 2007-09-13 2008-09-11 Basf Se Procedure for continuous separation of target product in the form of fine particle of crystallisate, comprises indirectly operating a heat exchanger having primary and secondary areas, which are spatially separated with one another
DE102009000987A1 (en) * 2009-02-18 2010-04-15 Basf Se Method for purified separating of chemical target compound from suspension of crystals in mother liquor, involves arranging two bearings in one of two mountings such that bearings accommodate force in one of mountings
DE102010030279A1 (en) 2010-06-18 2010-10-28 Basf Se Method for cleaning separation of acrylic acid crystals from a suspension of its crystals in mother liquor using a device having a hydraulic washing column, comprises carrying out crystallization of acrylic acid during cooling
US8461383B2 (en) * 2009-10-16 2013-06-11 Basf Se Process for starting up a separating process for purifying removal of acrylic acid crystals from a suspension S of crystals thereof in mother liquor
DE102009045767A1 (en) 2009-10-16 2010-08-12 Basf Se Method for commissioning process for purified separation of acrylic acid crystals from suspension of its crystals in mother liquor with device having hydraulic washing column that has process chamber limited by a cylindrical lateral wall
DE102012204436A1 (en) 2012-03-20 2012-10-04 Basf Se Thermal separation between at least a gas ascending- and a liquid containing at least a (meth)acrylic-monomer descending respectively in separating column, accomplished in a separation effective installation containing separating columns
DE102012212424A1 (en) 2012-07-16 2014-01-16 Basf Se Process for the preparation of acrylic acid by a thermolysis of poly-3-hydroxypropionate catalyzed by at least one molecular active compound
DE102012212437A1 (en) 2012-07-16 2014-01-16 Basf Se Process for the preparation of acrylic acid from ethylene oxide and carbon monoxide
WO2022054840A1 (en) 2020-09-11 2022-03-17 株式会社日本触媒 Purification device
US20240254070A1 (en) * 2021-06-02 2024-08-01 Nippon Shokubai Co., Ltd. Method for producing easily polymerizable compound
CN117730072A (en) 2021-07-28 2024-03-19 巴斯夫欧洲公司 Method for producing acrylic acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267686A (en) * 1963-09-16 1966-08-23 Phillips Petroleum Co Fractional crystallization having a liquor withdrawal responsive to a pressure differential
DE1794202A1 (en) * 1968-09-21 1971-07-29 Bayer Ag Process for separating and purifying crystals from a crystal suspension
NL8202517A (en) * 1982-06-22 1984-01-16 Tno DEVICE FOR COMPACTING A SUSPENSION.
DE10036880A1 (en) * 2000-07-28 2002-02-07 Basf Ag Control of a washing column in a melt crystallization process
US7112695B2 (en) * 2000-04-11 2006-09-26 Basf Aktiengesellschaft Method for the purification of a crude acrylic acid melt
EP1448283B1 (en) * 2001-11-15 2006-02-22 Basf Aktiengesellschaft Method for performing the purifying separation of crystals out of their suspension in a mother liquor

Also Published As

Publication number Publication date
JP2008536893A (en) 2008-09-11
WO2006111565A2 (en) 2006-10-26
BRPI0608378A2 (en) 2010-11-16
RU2417813C2 (en) 2011-05-10
EP1874422B1 (en) 2008-10-08
JP5215843B2 (en) 2013-06-19
WO2006111565A3 (en) 2007-04-19
BRPI0608378B1 (en) 2017-12-12
ATE410210T1 (en) 2008-10-15
DE502006001765D1 (en) 2008-11-20
RU2007142566A (en) 2009-05-27
EP1874422A2 (en) 2008-01-09

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