GB1485733A - Method for treating aqueous waste liquids - Google Patents

Method for treating aqueous waste liquids

Info

Publication number
GB1485733A
GB1485733A GB79575A GB79575A GB1485733A GB 1485733 A GB1485733 A GB 1485733A GB 79575 A GB79575 A GB 79575A GB 79575 A GB79575 A GB 79575A GB 1485733 A GB1485733 A GB 1485733A
Authority
GB
United Kingdom
Prior art keywords
melamine
mole
formaldehyde
moles
jan
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
GB79575A
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.)
Nippon Carbide Industries Co Inc
Original Assignee
Nippon Carbide Industries Co Inc
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 Nippon Carbide Industries Co Inc filed Critical Nippon Carbide Industries Co Inc
Publication of GB1485733A publication Critical patent/GB1485733A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
    • C08G12/32—Melamines
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

1485733 Cationic melamine-formaldehyde resins NIPPON CARBIDE KOGYO KK 8 Jan 1975 [14 Jan 1974] 795/75 Heading C3R [Also in Division C1] Water-soluble melamine resins containing in the molecule units of formula wherein, X is an anion, are prepared by reacting 1 mole of melamine with 2-3 moles of formaldehyde and optionally with less than 1 mole of urea, dicyandiamide or acetoguanamine and adding to the resulting methylol melamine resin solution 0À5-3À5 moles of acid per mole of melamine. In examples melamine is reacted with aqueous formaldehyde solution at pH8 and then (a) further reacted with formic acid or (b) spray dried and the resultant powder dissolved in dilute hydrochloric acid. Specification 1,210,517 is referred to.
GB79575A 1974-01-14 1975-01-08 Method for treating aqueous waste liquids Expired GB1485733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP665974A JPS5318343B2 (en) 1974-01-14 1974-01-14

Publications (1)

Publication Number Publication Date
GB1485733A true GB1485733A (en) 1977-09-14

Family

ID=11644491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB79575A Expired GB1485733A (en) 1974-01-14 1975-01-08 Method for treating aqueous waste liquids

Country Status (6)

Country Link
JP (1) JPS5318343B2 (en)
CA (1) CA1067221A (en)
DE (1) DE2501262C3 (en)
FR (1) FR2257548B1 (en)
GB (1) GB1485733A (en)
IT (1) IT1028353B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296238A (en) * 1994-12-20 1996-06-26 Chemisolv Ltd Improvements in or relating to effluent treatment
WO2006071672A2 (en) * 2004-12-23 2006-07-06 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8011514B2 (en) 2004-12-23 2011-09-06 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8092686B2 (en) 2004-12-23 2012-01-10 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8127930B2 (en) 2004-12-23 2012-03-06 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes
US8702993B2 (en) 2004-12-23 2014-04-22 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes
US8757389B2 (en) 2004-12-23 2014-06-24 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009706A (en) * 1976-06-18 1977-03-01 American Cyanamid Company Synthetic organic flocculants to clarify raw sugar liquor
FR2424234A1 (en) * 1978-04-24 1979-11-23 Hoechst France RAW WATER AND WASTE WATER TREATMENT PROCESS
JPS5870755U (en) * 1981-11-06 1983-05-13 四国積水工業株式会社 agricultural cap
FR2519009A1 (en) * 1981-12-29 1983-07-01 Hoechst France NOVEL CATIONIC AMINOPLASTIC RESIN, PROCESS FOR OBTAINING SAME AND APPLICATION THEREOF IN WATER TREATMENT
CH660588A5 (en) * 1982-10-26 1987-05-15 Sulzer Ag METHOD FOR REMOVING DYE, PIGMENT AND / OR OPTICAL BRIGHTENER FROM SEWAGE.
CN102863065B (en) * 2012-09-28 2014-03-19 青岛科技大学 Preparation method of starch-grafted dicyandiamide formaldehyde polycondensate flocculants

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296238A (en) * 1994-12-20 1996-06-26 Chemisolv Ltd Improvements in or relating to effluent treatment
GB2296238B (en) * 1994-12-20 1998-12-16 Chemisolv Ltd Improvements in or relating to effluent treatment
WO2006071672A2 (en) * 2004-12-23 2006-07-06 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
WO2006071672A3 (en) * 2004-12-23 2007-02-08 Georgia Pacific Resins Modified amine-aldehyde resins and uses thereof in separation processes
US7913852B2 (en) 2004-12-23 2011-03-29 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8011514B2 (en) 2004-12-23 2011-09-06 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8092686B2 (en) 2004-12-23 2012-01-10 Georgia-Pacific Chemicals Llc Modified amine-aldehyde resins and uses thereof in separation processes
US8127930B2 (en) 2004-12-23 2012-03-06 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes
US8702993B2 (en) 2004-12-23 2014-04-22 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes
US8757389B2 (en) 2004-12-23 2014-06-24 Georgia-Pacific Chemicals Llc Amine-aldehyde resins and uses thereof in separation processes
US10150839B2 (en) 2004-12-23 2018-12-11 Ingevity South Carolina, Llc Amine-aldehyde resins and uses thereof in separation processes

Also Published As

Publication number Publication date
JPS50105575A (en) 1975-08-20
FR2257548B1 (en) 1980-07-18
DE2501262A1 (en) 1975-07-17
DE2501262C3 (en) 1980-02-21
DE2501262B2 (en) 1979-06-13
JPS5318343B2 (en) 1978-06-14
CA1067221A (en) 1979-11-27
IT1028353B (en) 1979-01-30
FR2257548A1 (en) 1975-08-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee