CA2023735A1 - Compositions and process for removing toxic resin acids and derivatives from effluent - Google Patents

Compositions and process for removing toxic resin acids and derivatives from effluent

Info

Publication number
CA2023735A1
CA2023735A1 CA 2023735 CA2023735A CA2023735A1 CA 2023735 A1 CA2023735 A1 CA 2023735A1 CA 2023735 CA2023735 CA 2023735 CA 2023735 A CA2023735 A CA 2023735A CA 2023735 A1 CA2023735 A1 CA 2023735A1
Authority
CA
Canada
Prior art keywords
effluent
removing toxic
resin acids
derivatives
compositions
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.)
Granted
Application number
CA 2023735
Other languages
French (fr)
Other versions
CA2023735C (en
Inventor
Robert Dennis Hodges
Timothy Paul Nickel
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.)
Raisio Chemicals Canada Inc
Original Assignee
DIACHEM 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 DIACHEM INDUSTRIES Ltd filed Critical DIACHEM INDUSTRIES Ltd
Priority to CA 2023735 priority Critical patent/CA2023735C/en
Publication of CA2023735A1 publication Critical patent/CA2023735A1/en
Application granted granted Critical
Publication of CA2023735C publication Critical patent/CA2023735C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

This invention relates to novel compositions and a novel process for removing toxic resin acids and their derivatives from water and waste water effluent. In one specific aspect, the invention pertains to novel compositions and a novel process for removing toxic resin acids from effluent of pulp and paper mills. A composition for treating effluent comprising: (a) a water soluble nonionic polyalkylene ether containing lower alkyl groups in the alkyl chain and having a molecular weight exceeding 50,000; and (b) an ionic water-soluble polymer having a molecular weight exceeding about 10,000.
CA 2023735 1990-08-21 1990-08-21 Compositions and process for removing toxic resin acids and derivatives from effluent Expired - Fee Related CA2023735C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2023735 CA2023735C (en) 1990-08-21 1990-08-21 Compositions and process for removing toxic resin acids and derivatives from effluent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2023735 CA2023735C (en) 1990-08-21 1990-08-21 Compositions and process for removing toxic resin acids and derivatives from effluent

Publications (2)

Publication Number Publication Date
CA2023735A1 true CA2023735A1 (en) 1992-02-22
CA2023735C CA2023735C (en) 1999-03-16

Family

ID=4145790

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2023735 Expired - Fee Related CA2023735C (en) 1990-08-21 1990-08-21 Compositions and process for removing toxic resin acids and derivatives from effluent

Country Status (1)

Country Link
CA (1) CA2023735C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354479A (en) * 1992-05-05 1994-10-11 Eka Nobel Ab Method for purifying process water or wastewater containing wood resin
US5368742A (en) * 1993-06-01 1994-11-29 B. G. Roberts Chemicals Inc. Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams
GB2364047A (en) * 2000-06-27 2002-01-16 Procter & Gamble Water treatment composition
GB2364048A (en) * 2000-06-27 2002-01-16 Procter & Gamble Water treatment composition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9856159B2 (en) * 2013-04-12 2018-01-02 Psmg, Llc Polymer blends for flocculation
US9714342B2 (en) 2013-08-22 2017-07-25 Psmg, Llc Particle suspensions of flocculating polymer powders
US10011717B2 (en) 2013-11-27 2018-07-03 Psmg, Llc Particle suspensions of flocculating polymer powders and powder flocculant polymer blends

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354479A (en) * 1992-05-05 1994-10-11 Eka Nobel Ab Method for purifying process water or wastewater containing wood resin
US5368742A (en) * 1993-06-01 1994-11-29 B. G. Roberts Chemicals Inc. Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams
GB2364047A (en) * 2000-06-27 2002-01-16 Procter & Gamble Water treatment composition
GB2364048A (en) * 2000-06-27 2002-01-16 Procter & Gamble Water treatment composition

Also Published As

Publication number Publication date
CA2023735C (en) 1999-03-16

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Correction of dead application (reinstatement)
MKLA Lapsed