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WO1999035090A3 - Improvements in flocculants - Google Patents

Improvements in flocculants Download PDF

Info

Publication number
WO1999035090A3
WO1999035090A3 PCT/GB1998/003788 GB9803788W WO9935090A3 WO 1999035090 A3 WO1999035090 A3 WO 1999035090A3 GB 9803788 W GB9803788 W GB 9803788W WO 9935090 A3 WO9935090 A3 WO 9935090A3
Authority
WO
WIPO (PCT)
Prior art keywords
chloride
waters
aluminium chloride
reaction
sulphate
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
PCT/GB1998/003788
Other languages
French (fr)
Other versions
WO1999035090A2 (en
Inventor
Neil Clarke
John Newton
Kevin Parkes
Michael Whiting
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.)
Evonik LIL Ltd
Original Assignee
Laporte Industries 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 Laporte Industries Ltd filed Critical Laporte Industries Ltd
Priority to AU16762/99A priority Critical patent/AU1676299A/en
Publication of WO1999035090A2 publication Critical patent/WO1999035090A2/en
Publication of WO1999035090A3 publication Critical patent/WO1999035090A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/68—Aluminium compounds containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides
    • C01F7/57—Basic aluminium chlorides, e.g. polyaluminium chlorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/78—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

A flocculant composition comprises a polyaluminium calcium magnesium chloride or chloride sulphate gives effective turbidity reduction and transmissivity increase in waters, especially in waters having a hardness no more than 120 mg/l CaCO3. The composition is produced by the reaction of aluminium chloride in an acidic aqueous medium containing chloride and/or sulphate ions and also containing one or more magnesium carbonate-containing minerals such as dolomite. The aluminium chloride may be aluminium chloride contaminated with organic impurities as a result of use as a catalyst for organic transformations such as the alkylation of aromatic or aliphatic compounds by means of the Friedel-Krafts reaction.
PCT/GB1998/003788 1998-01-09 1998-12-17 Improvements in flocculants Ceased WO1999035090A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16762/99A AU1676299A (en) 1998-01-09 1998-12-17 Improvements in flocculants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9800356.9A GB9800356D0 (en) 1998-01-09 1998-01-09 Flocculants
GB9800356.9 1998-01-09

Publications (2)

Publication Number Publication Date
WO1999035090A2 WO1999035090A2 (en) 1999-07-15
WO1999035090A3 true WO1999035090A3 (en) 1999-09-16

Family

ID=10824989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003788 Ceased WO1999035090A2 (en) 1998-01-09 1998-12-17 Improvements in flocculants

Country Status (3)

Country Link
AU (1) AU1676299A (en)
GB (1) GB9800356D0 (en)
WO (1) WO1999035090A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147658A1 (en) * 2001-09-27 2003-04-10 Cu Chemie Uetikon Ag Uetikon Composition and its use as a coagulant and flocculant
EP1690834A3 (en) * 2005-02-14 2015-05-13 Sachtleben Chemie GmbH Polyaluminum chloride solution
SE531166C2 (en) * 2007-06-08 2009-01-07 Kemira Kemi Ab Process for the preparation of polyaluminum salts
CN101905898B (en) * 2010-08-03 2012-06-27 常州友邦净水材料有限公司 Utilization method for polymeric aluminium reaction residues

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147488A (en) * 1982-02-26 1983-09-02 Taki Chem Co Ltd Soil conditioner
US4566986A (en) * 1984-08-31 1986-01-28 Waldmann John J Flocculating agents and processes for making them
FR2600322A2 (en) * 1985-07-12 1987-12-24 Rhone Poulenc Chim Base Process for the preparation of a basic aluminium chlorosulphate
WO1994020417A1 (en) * 1993-03-09 1994-09-15 Laporte Industries Limited Flocculating agents
EP0794153A1 (en) * 1996-03-08 1997-09-10 Elf Atochem S.A. Process for the preparation of basic aluminium polychlorosulphates and its use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147488A (en) * 1982-02-26 1983-09-02 Taki Chem Co Ltd Soil conditioner
US4566986A (en) * 1984-08-31 1986-01-28 Waldmann John J Flocculating agents and processes for making them
FR2600322A2 (en) * 1985-07-12 1987-12-24 Rhone Poulenc Chim Base Process for the preparation of a basic aluminium chlorosulphate
WO1994020417A1 (en) * 1993-03-09 1994-09-15 Laporte Industries Limited Flocculating agents
EP0794153A1 (en) * 1996-03-08 1997-09-10 Elf Atochem S.A. Process for the preparation of basic aluminium polychlorosulphates and its use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8341, Derwent World Patents Index; Class C03, AN 83-785890, XP002108425 *

Also Published As

Publication number Publication date
AU1676299A (en) 1999-07-26
GB9800356D0 (en) 1998-03-04
WO1999035090A2 (en) 1999-07-15

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