FR2013320A1 - Removal of solids from dispersions using a - Google Patents

Removal of solids from dispersions using a

Info

Publication number
FR2013320A1
FR2013320A1 FR6912826A FR6912826A FR2013320A1 FR 2013320 A1 FR2013320 A1 FR 2013320A1 FR 6912826 A FR6912826 A FR 6912826A FR 6912826 A FR6912826 A FR 6912826A FR 2013320 A1 FR2013320 A1 FR 2013320A1
Authority
FR
France
Prior art keywords
dispersion
polymer
solid
dispersed
dispersions
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.)
Pending
Application number
FR6912826A
Other languages
French (fr)
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.)
Rederi Nordstjernan AB
Original Assignee
Rederi Nordstjernan AB
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 Rederi Nordstjernan AB filed Critical Rederi Nordstjernan AB
Publication of FR2013320A1 publication Critical patent/FR2013320A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Colloid Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Solid matter which is dispersed in a liquid medium is coagulated by adding to the dispersion a branched-chain polymer which is soluble in the medium of the dispersion and which has a number of reactive positions and a strong affinity for the dispersed solid; the separate particles of the solid become encapsulated in the polymer. A polyfunctional cross-linking agent is also added to the dispersion, and is allowed to react with the polymer. The precipitate formed is firm and relatively resistant to the effects of stirring. It is in the form of large, easily separated flakes or agglomerates.
FR6912826A 1968-04-23 1969-04-23 Removal of solids from dispersions using a Pending FR2013320A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE544668A SE331979B (en) 1968-04-23 1968-04-23

Publications (1)

Publication Number Publication Date
FR2013320A1 true FR2013320A1 (en) 1970-04-03

Family

ID=20266482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6912826A Pending FR2013320A1 (en) 1968-04-23 1969-04-23 Removal of solids from dispersions using a

Country Status (4)

Country Link
DE (1) DE1920590A1 (en)
FR (1) FR2013320A1 (en)
NL (1) NL6906296A (en)
SE (1) SE331979B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849180A (en) * 1971-05-25 1974-11-19 Norddeutsche Affinerie Process for bonding particulate solid materials to a substrate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026616B1 (en) * 1979-10-01 1983-08-10 PIRA, The Research Association for the Paper & Board Printing and Packaging Industries Process for improving the quality of pulp obtained from wastepaper
CA1249903A (en) * 1984-05-10 1989-02-14 Christopher C. Mollett Composition and method of deinking of recycled cellulosic material
DE10062696A1 (en) * 2000-12-15 2002-06-20 Bernhard Wietrzynski Screw unit has an outside thread which is divided into conical and cylindrical sections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849180A (en) * 1971-05-25 1974-11-19 Norddeutsche Affinerie Process for bonding particulate solid materials to a substrate

Also Published As

Publication number Publication date
NL6906296A (en) 1969-10-27
DE1920590A1 (en) 1969-12-04
SE331979B (en) 1971-01-25

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