SE7501923L - - Google Patents
Info
- Publication number
- SE7501923L SE7501923L SE7501923A SE7501923A SE7501923L SE 7501923 L SE7501923 L SE 7501923L SE 7501923 A SE7501923 A SE 7501923A SE 7501923 A SE7501923 A SE 7501923A SE 7501923 L SE7501923 L SE 7501923L
- Authority
- SE
- Sweden
- Prior art keywords
- acids
- alkali metal
- metal salts
- resin
- added
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
- D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/10—Phosphorus-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
Abstract
In order to prevent resin exudations in the manufacture of paper, paperboard and cardboard, a phosphonic acid compound is added alone or together with aminopolycarboxylic acids and/or hydroxy acids or alkali metal salts thereof in quantities from 0.02 to 1.0%, relative to dry stock, to the resin-containing cellulose pulp or wood pulp during processing. In place of the aminopolycarboxylic acids and/or hydroxy acids, or additionally thereto, orthophosphoric acid and/or polyphosphoric acids or alkali metal salts thereof can be added.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2408523A DE2408523C3 (en) | 1974-02-22 | 1974-02-22 | Process for preventing resin build-up in papermaking |
DE19752500209 DE2500209B2 (en) | 1975-01-03 | 1975-01-03 | METHOD AND MEANS OF PREVENTION OF RESIN PRECIPITATION IN PAPER MANUFACTURING |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7501923L true SE7501923L (en) | 1975-08-25 |
SE415283B SE415283B (en) | 1980-09-22 |
Family
ID=25766676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7501923A SE415283B (en) | 1974-02-22 | 1975-02-20 | WANT TO PREVENT HEART SEPARATIONS WHEN MANUFACTURING PAPERS AND Means for Implementing the Procedure |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS50142806A (en) |
AT (1) | AT341332B (en) |
CH (1) | CH611361A5 (en) |
FR (1) | FR2262151B1 (en) |
GB (1) | GB1467221A (en) |
IT (1) | IT1031959B (en) |
NL (1) | NL170165C (en) |
NO (1) | NO144222C (en) |
SE (1) | SE415283B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US386046A (en) * | 1888-07-10 | Tebeitoey | ||
US3837803A (en) * | 1972-07-11 | 1974-09-24 | Betz Laboratories | Orthophosphate corrosion inhibitors and their use |
-
1975
- 1975-02-12 NL NLAANVRAGE7501656,A patent/NL170165C/en not_active IP Right Cessation
- 1975-02-20 SE SE7501923A patent/SE415283B/en not_active IP Right Cessation
- 1975-02-20 JP JP50020441A patent/JPS50142806A/ja active Pending
- 1975-02-21 NO NO750592A patent/NO144222C/en unknown
- 1975-02-21 IT IT20536/75A patent/IT1031959B/en active
- 1975-02-21 GB GB738275A patent/GB1467221A/en not_active Expired
- 1975-02-21 AT AT133375A patent/AT341332B/en not_active IP Right Cessation
- 1975-02-21 FR FR7505455A patent/FR2262151B1/fr not_active Expired
- 1975-02-21 CH CH218475A patent/CH611361A5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1031959B (en) | 1979-05-10 |
FR2262151B1 (en) | 1978-04-21 |
NL170165B (en) | 1982-05-03 |
NL7501656A (en) | 1975-08-26 |
NO144222B (en) | 1981-04-06 |
GB1467221A (en) | 1977-03-16 |
ATA133375A (en) | 1977-05-15 |
JPS50142806A (en) | 1975-11-17 |
NL170165C (en) | 1982-10-01 |
SE415283B (en) | 1980-09-22 |
FR2262151A1 (en) | 1975-09-19 |
NO750592L (en) | 1975-08-25 |
CH611361A5 (en) | 1979-05-31 |
AT341332B (en) | 1978-02-10 |
NO144222C (en) | 1981-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7501923-2 Effective date: 19880125 Format of ref document f/p: F |