FR2419743A1 - STABILIZED SOLUTION OF A CATIONIC FLOCCULATION AGENT AND ITS PREPARATION PROCESS - Google Patents

STABILIZED SOLUTION OF A CATIONIC FLOCCULATION AGENT AND ITS PREPARATION PROCESS

Info

Publication number
FR2419743A1
FR2419743A1 FR7905394A FR7905394A FR2419743A1 FR 2419743 A1 FR2419743 A1 FR 2419743A1 FR 7905394 A FR7905394 A FR 7905394A FR 7905394 A FR7905394 A FR 7905394A FR 2419743 A1 FR2419743 A1 FR 2419743A1
Authority
FR
France
Prior art keywords
solution
preparation process
flocculation agent
stabilized solution
cationic flocculation
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.)
Withdrawn
Application number
FR7905394A
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.)
Tioxide Group Ltd
Original Assignee
Tioxide Group Ltd
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 Tioxide Group Ltd filed Critical Tioxide Group Ltd
Publication of FR2419743A1 publication Critical patent/FR2419743A1/en
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents

Landscapes

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

Abstract

La solution selon l'invention comprend une solution aqueuse d'un agent de floculation cationique contenant moins de 10 g/l dudit agent floculant et une quantité suffisante d'acide libre pour conférer à la solution un pH de 1 à 5,5, ladite solution etant pratiquement exempte de solides minéraux en suspension. L'acidification des solutions diluées permet d'améliorer la stabilité du floculant durant son stockage, ce qui évite le gaspillage.The solution according to the invention comprises an aqueous solution of a cationic flocculating agent containing less than 10 g / l of said flocculating agent and a sufficient quantity of free acid to give the solution a pH of 1 to 5.5, said solution being practically free from suspended mineral solids. Acidification of dilute solutions improves the stability of the flocculant during storage, which prevents waste.

FR7905394A 1978-03-15 1979-03-01 STABILIZED SOLUTION OF A CATIONIC FLOCCULATION AGENT AND ITS PREPARATION PROCESS Withdrawn FR2419743A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10213/78A GB1572386A (en) 1978-03-15 1978-03-15 Stabilised solutions of flocculating agents

Publications (1)

Publication Number Publication Date
FR2419743A1 true FR2419743A1 (en) 1979-10-12

Family

ID=9963678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905394A Withdrawn FR2419743A1 (en) 1978-03-15 1979-03-01 STABILIZED SOLUTION OF A CATIONIC FLOCCULATION AGENT AND ITS PREPARATION PROCESS

Country Status (7)

Country Link
AU (1) AU522220B2 (en)
CA (1) CA1126124A (en)
DE (1) DE2910047A1 (en)
ES (1) ES478209A1 (en)
FR (1) FR2419743A1 (en)
GB (1) GB1572386A (en)
ZA (1) ZA79535B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260664A2 (en) * 1986-09-16 1988-03-23 Montedison S.p.A. Process for preparing titanium dioxide in the form of spherical particles by hydrolysis of Ti (IV)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405712A3 (en) * 1989-06-30 1992-02-05 Diatec Polymers Protonated mannich polymers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238017B1 (en) * 1972-08-02 1973-10-18 Rohm GmbH 6100 Darmstadt Flocculant for dewatering sludge - comprising aqs polyacrylamide stock soln stabilised by acidification
DE2603764A1 (en) * 1976-01-31 1977-08-04 Basf Ag Purifcn. of waste water from polystyrene beads prodn. - by adding acid and ammonium salt of a styrene-maleic anhydride copolymer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238017B1 (en) * 1972-08-02 1973-10-18 Rohm GmbH 6100 Darmstadt Flocculant for dewatering sludge - comprising aqs polyacrylamide stock soln stabilised by acidification
DE2603764A1 (en) * 1976-01-31 1977-08-04 Basf Ag Purifcn. of waste water from polystyrene beads prodn. - by adding acid and ammonium salt of a styrene-maleic anhydride copolymer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260664A2 (en) * 1986-09-16 1988-03-23 Montedison S.p.A. Process for preparing titanium dioxide in the form of spherical particles by hydrolysis of Ti (IV)
EP0260664A3 (en) * 1986-09-16 1988-11-09 Montedison S.p.A. Process for preparing titanium dioxide in the form of spherical particles by hydrolysis of ti (iv)

Also Published As

Publication number Publication date
DE2910047A1 (en) 1979-09-20
CA1126124A (en) 1982-06-22
AU4382979A (en) 1979-09-20
GB1572386A (en) 1980-07-30
AU522220B2 (en) 1982-05-20
ZA79535B (en) 1980-09-24
ES478209A1 (en) 1979-05-16

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Legal Events

Date Code Title Description
RE Withdrawal of published application