GB1186275A - Masking Heavy Metal Cations in Aqueous Solution by Complex Formation. - Google Patents

Masking Heavy Metal Cations in Aqueous Solution by Complex Formation.

Info

Publication number
GB1186275A
GB1186275A GB3030967A GB3030967A GB1186275A GB 1186275 A GB1186275 A GB 1186275A GB 3030967 A GB3030967 A GB 3030967A GB 3030967 A GB3030967 A GB 3030967A GB 1186275 A GB1186275 A GB 1186275A
Authority
GB
United Kingdom
Prior art keywords
polycondensates
specific
substance
basic nitrogen
nitrogen atoms
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
GB3030967A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1186275A publication Critical patent/GB1186275A/en
Expired 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
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (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)
  • Paper (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

1,186,275. Analysis. BADISCHE ANILIN-& SODA-FABRIK A.G. 30 June, 1967 [2 July, 1966], No. 30309/67. Heading B1X. [Also in Divisions Cl and C3] Metal ion masking agents useful in the analytical separation of iron and aluminium comprise water soluble polycondensates obtained by reacting a substance which is an aliphatic linear polycondensate or polymer containing m basic nitrogen atoms per structural element and 2 to 18 chain members between adjacent basic nitrogen atoms with 0.05 m to 1.8 m moles of a bifunctional or higher polyfunctional alkylating agent, n being 1 to 10. The. substance may be a polyalkylenimine or a mixture of polyalkylenimines having 2-4 carbon atoms, polycondensates of alkylene polyamines of specific chain length with specific aliphatic dicarboxylic acids or their functional derivatives or with specific # hydroxy or amino carboxylic acids or lactams and lactones thereof and poly-addition or - condensation products of alkylene polyamines with acrylic acid and its lower esters. Specifically exemplified are polyethyleneimines, polycondensates of diethylene triamine and adipic acid, dipropylene triamine and adipic acid or caprolactam or glycol acrylate and triethylene tetramine and sebacic acid. Alkylating agents specified are dichlorohydrin, butadiene diepoxide, divinylsulphone, epichlorohydrin and the disodium salt of tris-(#-sulphatoethyl)- sulphonium inner salt.
GB3030967A 1966-07-02 1967-06-30 Masking Heavy Metal Cations in Aqueous Solution by Complex Formation. Expired GB1186275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0087836 1966-07-02

Publications (1)

Publication Number Publication Date
GB1186275A true GB1186275A (en) 1970-04-02

Family

ID=6983974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3030967A Expired GB1186275A (en) 1966-07-02 1967-06-30 Masking Heavy Metal Cations in Aqueous Solution by Complex Formation.

Country Status (4)

Country Link
AT (1) AT267474B (en)
CH (1) CH496812A (en)
DE (1) DE1542017A1 (en)
GB (1) GB1186275A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018344A1 (en) * 1979-04-09 1980-10-29 THE PROCTER & GAMBLE COMPANY Method and composition to inhibit staining of porcelain surfaces by manganese, and toilet tank dispenser using this composition
US4302350A (en) 1979-04-09 1981-11-24 The Procter & Gamble Company Method and composition to inhibit staining of porcelain surfaces by manganese

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110736A1 (en) * 1991-04-03 1992-10-08 Rotta Innovations Gmbh Dr Heat degradable polymer particles used in water treatment - comprising amino resin matrix with immobilised functional polymer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018344A1 (en) * 1979-04-09 1980-10-29 THE PROCTER & GAMBLE COMPANY Method and composition to inhibit staining of porcelain surfaces by manganese, and toilet tank dispenser using this composition
US4302350A (en) 1979-04-09 1981-11-24 The Procter & Gamble Company Method and composition to inhibit staining of porcelain surfaces by manganese

Also Published As

Publication number Publication date
DE1542017A1 (en) 1970-03-19
CH496812A (en) 1970-09-30
AT267474B (en) 1968-12-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees