ZA718559B - Process for the reduction of effluent color from a multi-stage bleaching sequence - Google Patents

Process for the reduction of effluent color from a multi-stage bleaching sequence

Info

Publication number: ZA718559B
Authority: ZA; South Africa
Prior art keywords: reduction; bleaching sequence; stage bleaching; effluent color; effluent
Prior art date: 1971-01-22

Application number

ZA718559A

Other languages

English (en)

Inventor

R Gall

F Thompson

Original Assignee

Hooker Chemical Corp

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.)

1971-01-22

Filing date

1971-12-22

Publication date

1972-09-27

1971-12-22 Application filed by Hooker Chemical Corp filed Critical Hooker Chemical Corp

1972-09-27 Publication of ZA718559B publication Critical patent/ZA718559B/xx

Links

238000004061 bleaching Methods 0.000 title 1
238000000034 method Methods 0.000 title 1

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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

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

ZA718559A 1971-01-22 1971-12-22 Process for the reduction of effluent color from a multi-stage bleaching sequence ZA718559B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US10899571A	1971-01-22	1971-01-22

Publications (1)

Publication Number	Publication Date
ZA718559B true ZA718559B (en)	1972-09-27

Family

ID=22325250

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA718559A ZA718559B (en)	1971-01-22	1971-12-22	Process for the reduction of effluent color from a multi-stage bleaching sequence

Country Status (12)

Country	Link
JP (1)	JPS5020601B1 (ja)
AU (1)	AU458729B2 (ja)
BR (1)	BR7200385D0 (ja)
CA (1)	CA975111A (ja)
DE (1)	DE2202662A1 (ja)
ES (1)	ES399036A1 (ja)
FR (1)	FR2122963A5 (ja)
IT (1)	IT946779B (ja)
NL (1)	NL7200822A (ja)
SE (1)	SE390991B (ja)
SU (1)	SU605555A3 (ja)
ZA (1)	ZA718559B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI884507L (fi) *	1987-10-05	1989-04-06	Champion Int Corp	Foerminskning av faerg i pappersfabriksavfallsvatten genom oxidering med klordioxid.

1971
- 1971-12-17 CA CA130,453A patent/CA975111A/en not_active Expired
- 1971-12-22 ZA ZA718559A patent/ZA718559B/xx unknown
- 1971-12-23 AU AU37265/71A patent/AU458729B2/en not_active Expired
1972
- 1972-01-12 SU SU721737114A patent/SU605555A3/ru active
- 1972-01-19 ES ES399036A patent/ES399036A1/es not_active Expired
- 1972-01-19 FR FR7201731A patent/FR2122963A5/fr not_active Expired
- 1972-01-20 NL NL7200822A patent/NL7200822A/xx unknown
- 1972-01-20 DE DE19722202662 patent/DE2202662A1/de active Pending
- 1972-01-21 IT IT19638/72A patent/IT946779B/it active
- 1972-01-21 SE SE7200707A patent/SE390991B/xx unknown
- 1972-01-21 JP JP47008244A patent/JPS5020601B1/ja active Pending
- 1972-01-24 BR BR385/72A patent/BR7200385D0/pt unknown

Also Published As

Publication number	Publication date
DE2202662A1 (de)	1972-08-03
AU3726571A (en)	1973-06-28
AU458729B2 (en)	1975-03-06
SE390991B (sv)	1977-01-31
BR7200385D0 (pt)	1973-07-17
JPS5020601B1 (ja)	1975-07-16
IT946779B (it)	1973-05-21
FR2122963A5 (en)	1972-09-01
NL7200822A (ja)	1972-07-25
SU605555A3 (ru)	1978-04-30
ES399036A1 (es)	1975-06-01
CA975111A (en)	1975-09-30

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