ZA708076B - Oxygen bleaching process - Google Patents

Oxygen bleaching process

Info

Publication number: ZA708076B
Authority: ZA; South Africa
Prior art keywords: bleaching process; oxygen bleaching; oxygen; bleaching
Prior art date: 1969-12-19

Application number

ZA708076*A

Other languages

English (en)

Inventor

S Mallett

Original Assignee

Canadian Ind

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.)

1969-12-19

Filing date

1970-11-30

Publication date

1972-07-26

1970-11-30 Application filed by Canadian Ind filed Critical Canadian Ind

1972-07-26 Publication of ZA708076B publication Critical patent/ZA708076B/xx

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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

ZA708076*A 1969-12-19 1970-11-30 Oxygen bleaching process ZA708076B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA70450		1969-12-19

Publications (1)

Publication Number	Publication Date
ZA708076B true ZA708076B (en)	1972-07-26

Family

ID=4086085

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA708076*A ZA708076B (en)	1969-12-19	1970-11-30	Oxygen bleaching process

Country Status (10)

Country	Link
AT (1)	AT302013B (xx)
CA (1)	CA897361A (xx)
DE (1)	DE2061526C3 (xx)
FI (1)	FI49994C (xx)
FR (1)	FR2071947B1 (xx)
GB (1)	GB1342580A (xx)
NO (1)	NO129262B (xx)
SE (1)	SE369746B (xx)
SU (1)	SU366622A3 (xx)
ZA (1)	ZA708076B (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2416297A1 (fr) *	1978-01-31	1979-08-31	Europeen Cellulose	Procede anti-polluant de blanchiment de pate a papier
FR2432574A1 (fr) *	1978-08-01	1980-02-29	Europeen Cellulose	Procede de blanchiment de pate a papier
FI67241B (fi) *	1981-06-10	1984-10-31	Aga Ab	Saett foer blekning av cellulosahaltiga material
BR8109039A (pt) *	1981-09-04	1983-09-06	Weyerhaeuser Co	Tratamento de polpa com oxigenio
NZ237019A (en) *	1990-02-19	1992-11-25	Amcor Ltd	Bleaching paper pulp by initially treating with oxygen and/or hydrogen peroxide and subsequently treating with a bleaching agent without intervening washing steps
FR2670513B1 (fr) *	1990-12-18	1993-02-19	Centre Tech Ind Papier	Procede de blanchiment des pates papetieres chimiques par traitement a l'oxygene en deux stades.
SE9401628L (sv) *	1994-05-10	1995-11-11	Stora Kopparbergs Bergslags Ab	Förfarande vid syrgasdelignifiering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1310248A (xx) *		1963-03-06
FR1404605A (fr) *	1964-05-22	1965-07-02	Air Liquide	Perfectionnement à la délignification des pâtes chimiques de cellulose
SE334286B (xx) *	1968-12-05	1971-04-19	Mo Och Domsjoe Ab

1969
- 1969-12-19 CA CA897361A patent/CA897361A/en not_active Expired
1970
- 1970-11-30 ZA ZA708076*A patent/ZA708076B/xx unknown
- 1970-12-07 FI FI703285A patent/FI49994C/fi active
- 1970-12-10 NO NO04748/70A patent/NO129262B/no unknown
- 1970-12-14 DE DE2061526A patent/DE2061526C3/de not_active Expired
- 1970-12-16 SE SE17087/70A patent/SE369746B/xx unknown
- 1970-12-18 GB GB6027070A patent/GB1342580A/en not_active Expired
- 1970-12-18 SU SU1601806A patent/SU366622A3/ru active
- 1970-12-18 AT AT1142270A patent/AT302013B/de not_active IP Right Cessation
- 1970-12-18 FR FR7045905A patent/FR2071947B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE2061526A1 (de)	1971-06-24
SE369746B (xx)	1974-09-16
AT302013B (de)	1972-09-25
DE2061526C3 (de)	1975-06-05
FI49994C (fi)	1975-11-10
NO129262B (xx)	1974-03-18
FR2071947A1 (xx)	1971-09-24
SU366622A3 (xx)	1973-01-16
DE2061526B2 (xx)	1974-09-19
FI49994B (xx)	1975-07-31
FR2071947B1 (xx)	1974-04-26
CA897361A (en)	1972-04-11
GB1342580A (en)	1974-01-03

Similar Documents

Publication	Publication Date	Title
AU4535772A (en)	1974-02-14	Bleach activation process
ZA708365B (en)	1972-07-26	Oxygen bleaching
YU35229B (en)	1980-10-31	Process for obtaining hydrogen peroxide
ZA706179B (en)	1971-04-28	Process for obtaining hydrogen peroxide
ZA707536B (en)	1971-07-28	Colouration process
ZA708076B (en)	1972-07-26	Oxygen bleaching process
MY7500169A (en)	1975-12-31	Coloration process
IE37879L (en)	1974-01-10	Bleaching process
YU33769B (en)	1978-05-15	Process for preparing peroxides
ZA702034B (en)	1971-11-24	Pulp bleaching process
ZA705356B (en)	1971-04-28	Sulfur-burning process
YU134670A (en)	1977-12-31	Process for preparing organic peroxides
ZA711834B (en)	1971-12-29	Concentration process
ZA705740B (en)	1972-03-29	Pressure oxidation process
AU443327B2 (en)	1972-06-01	Oxygen bleaching process
ZA713813B (en)	1972-02-23	Rendering process
ZA723212B (en)	1973-02-28	Bleaching process
AU2280870A (en)	1972-06-01	Oxygen bleaching process
CA932507A (en)	1973-08-28	Bleaching and washing composition and process
ZA695634B (en)	1971-03-31	Oxidation process
CA820762A (en)	1969-08-19	Bleaching process
ZA706428B (en)	1971-05-27	Dyeing process
CA956168A (en)	1974-10-15	Concentration process
ZA705875B (en)	1972-04-26	Bleaching composition
CA821441A (en)	1969-08-26	Bleaching