GB1015747A - Process for improving the recovery of fibres and fillers from the waste liquors of paper machines - Google Patents

Process for improving the recovery of fibres and fillers from the waste liquors of paper machines

Info

Publication number
GB1015747A
GB1015747A GB4182063A GB4182063A GB1015747A GB 1015747 A GB1015747 A GB 1015747A GB 4182063 A GB4182063 A GB 4182063A GB 4182063 A GB4182063 A GB 4182063A GB 1015747 A GB1015747 A GB 1015747A
Authority
GB
United Kingdom
Prior art keywords
waste liquors
fibres
paper machines
fillers
recovery
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.)
Expired
Application number
GB4182063A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1015747A publication Critical patent/GB1015747A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/82—Pulp catching, de-watering, or recovering; Re-use of pulp-water adding fibre agglomeration compositions
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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)
  • Paper (AREA)

Abstract

Waste liquors from paper machines are treated with the reaction product between epior a di-chlorhydrin and a di- or poly-amine, with amino groups separated by at least 3 carbon atoms, in a ratio of less than one to one mols. The pH can be adjusted with formic, acetic or hydrochloric acid and alum may be added.ALSO:Waste liquors produced in paper making are treated with the reaction product between epi or a di-chlorhydrin and a di or polyamine, with amino groups separated by at least 3 carbon atoms, in a ratio of less than one to one mole at a point preceding the catch pot in order to improve sedimentation of the waste fibres.
GB4182063A 1962-10-26 1963-10-23 Process for improving the recovery of fibres and fillers from the waste liquors of paper machines Expired GB1015747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0038154 1962-10-26

Publications (1)

Publication Number Publication Date
GB1015747A true GB1015747A (en) 1966-01-05

Family

ID=7097232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4182063A Expired GB1015747A (en) 1962-10-26 1963-10-23 Process for improving the recovery of fibres and fillers from the waste liquors of paper machines

Country Status (4)

Country Link
AT (1) AT254798B (en)
CH (1) CH427488A (en)
DE (1) DE1546289C3 (en)
GB (1) GB1015747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227996A (en) * 1979-03-22 1980-10-14 Celanese Corporation Flotation process for improving recovery of phosphates from ores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227996A (en) * 1979-03-22 1980-10-14 Celanese Corporation Flotation process for improving recovery of phosphates from ores

Also Published As

Publication number Publication date
DE1546289A1 (en) 1969-12-11
DE1546289C3 (en) 1974-01-10
CH427488A (en) 1966-12-31
AT254798B (en) 1967-06-12

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