DE19681150D2 - Process for cleaning a liquid contaminated with thread molecules - Google Patents

Process for cleaning a liquid contaminated with thread molecules

Info

Publication number
DE19681150D2
DE19681150D2 DE19681150T DE19681150T DE19681150D2 DE 19681150 D2 DE19681150 D2 DE 19681150D2 DE 19681150 T DE19681150 T DE 19681150T DE 19681150 T DE19681150 T DE 19681150T DE 19681150 D2 DE19681150 D2 DE 19681150D2
Authority
DE
Germany
Prior art keywords
cleaning
liquid contaminated
thread molecules
molecules
thread
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
DE19681150T
Other languages
German (de)
Inventor
Rene Danziger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krebs and Co AG
Original Assignee
Krebs and Co 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
Application filed by Krebs and Co AG filed Critical Krebs and Co AG
Application granted granted Critical
Publication of DE19681150D2 publication Critical patent/DE19681150D2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
DE19681150T 1995-12-23 1996-12-20 Process for cleaning a liquid contaminated with thread molecules Ceased DE19681150D2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH365595 1995-12-23
PCT/CH1996/000454 WO1997023279A1 (en) 1995-12-23 1996-12-20 Process for purifying a liquid contaminated by filamentary molecules

Publications (1)

Publication Number Publication Date
DE19681150D2 true DE19681150D2 (en) 1999-08-12

Family

ID=4260685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681150T Ceased DE19681150D2 (en) 1995-12-23 1996-12-20 Process for cleaning a liquid contaminated with thread molecules

Country Status (5)

Country Link
EP (1) EP0876196A1 (en)
AU (1) AU1136697A (en)
CA (1) CA2241193A1 (en)
DE (1) DE19681150D2 (en)
WO (1) WO1997023279A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000354742A (en) 1999-04-13 2000-12-26 Nitto Denko Corp Spiral type separation membrane element
US6896810B2 (en) * 2002-08-02 2005-05-24 Rayonier Products And Financial Services Company Process for producing alkaline treated cellulosic fibers
AT413708B (en) * 2003-12-18 2006-05-15 Chemiefaser Lenzing Ag PROCESS FOR CLEANING AGGREGATES CORRUPTED WITH MACROMOLECULAR CARBOHYDRATES AND / OR THEIR DERIVED PRODUCTS
AT413548B (en) * 2004-06-02 2006-03-15 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A CHEMICAL FIBER AND ITS USE
US20070167618A1 (en) * 2006-01-13 2007-07-19 Celanese Acetate, Llc Manufacture of cellulose esters: recycle of caustic and/or acid from pre-treatment of pulp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556992A (en) * 1969-07-22 1971-01-19 Amicon Corp Anisotropic ultrafiltration membrane having adhering coating and methods of forming and using this membrane
US4270914A (en) * 1979-10-26 1981-06-02 Borregaard Industries Limited Process for controlling hemicellulose concentration during the mercerization of cellulose
SE453840B (en) * 1984-12-21 1988-03-07 Mo Och Domsjoe Ab METHOD OF PRODUCING CELLULOSAMASSA
DE59303689D1 (en) * 1992-03-06 1996-10-17 Filtrox Werk Ag Process for filtering contaminated alkali and plant for carrying out the process
IL109249A0 (en) * 1994-04-07 1994-07-31 Weizmann Kiryat Membrane Prod Process and system for purifying a contaminated caustic feed solution

Also Published As

Publication number Publication date
EP0876196A1 (en) 1998-11-11
AU1136697A (en) 1997-07-17
WO1997023279A1 (en) 1997-07-03
CA2241193A1 (en) 1997-07-03

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Legal Events

Date Code Title Description
8131 Rejection