GB726579A - Improvements in or relating to methods of chemically treating solid particles in liquid suspensions - Google Patents

Improvements in or relating to methods of chemically treating solid particles in liquid suspensions

Info

Publication number
GB726579A
GB726579A GB764353A GB764353A GB726579A GB 726579 A GB726579 A GB 726579A GB 764353 A GB764353 A GB 764353A GB 764353 A GB764353 A GB 764353A GB 726579 A GB726579 A GB 726579A
Authority
GB
United Kingdom
Prior art keywords
pipe
relating
methods
solid particles
liquid suspensions
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
GB764353A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB726579A publication Critical patent/GB726579A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/10—Ion-exchange processes in general; Apparatus therefor with moving ion-exchange material; with ion-exchange material in suspension or in fluidised-bed form
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • 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
    • D21C9/1026—Other features in bleaching processes

Abstract

Solid in suspension, such as cellulosic pulp, <PICT:0726579/IV (c)/1> enters a reaction vessel through an inlet 8 and is forced towards the outlet 11 by the incoming suspension, a chemical being fed in a countercurrent direction from pipe 9, and a wash liquid from pipe 10, the spent liquor being drained off through pipe 4. The fibres are passed in through scraper arm 6 arranged over a false bottom 2 mounted on rotating shaft 5 in the manner described in Specification 717,654, [Group I], and ascend past agitator arms 7. The bleaching reagent from pipe 9 increases in concentration as the pipe is approached and then diminishes, Fig. 2 (not shown). Between the pipe 10 and the outlet 11 washing takes place so that the fibre is freed from the chemical reagent. A second reaction may take place above the first.
GB764353A 1953-02-25 1953-03-19 Improvements in or relating to methods of chemically treating solid particles in liquid suspensions Expired GB726579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI33212T 1953-02-25

Publications (1)

Publication Number Publication Date
GB726579A true GB726579A (en) 1955-03-23

Family

ID=36897424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB764353A Expired GB726579A (en) 1953-02-25 1953-03-19 Improvements in or relating to methods of chemically treating solid particles in liquid suspensions

Country Status (5)

Country Link
BE (1) BE538444A (en)
DE (1) DE1007610B (en)
FI (1) FI33212A (en)
FR (1) FR1075736A (en)
GB (1) GB726579A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053068A (en) * 1957-08-21 1962-09-11 Sunds Verkst Er Aktiebolag Towers for bleaching pulp material, especially cellulose pulp
US3298900A (en) * 1963-03-22 1967-01-17 Kamyr Ab Method and apparatus for the continuous bleaching of cellulosic pulp
FI67891C (en) * 1983-02-17 1985-06-10 Larox Ag FOERFARANDE FOER BEHANDLING AV DEN FRAON EN CELLULOSAS KOKNINGSPROCESS ERHAOLLNA CELLULOSAN

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE498559C (en) * 1926-02-14 1930-05-28 Adolf Schneider Dr Ing Tower bleacher for bleaching pulp and like
DE745292C (en) * 1942-05-09 1944-03-02 Einar Morterud Washing device for pulp digester

Also Published As

Publication number Publication date
DE1007610B (en) 1957-05-02
FR1075736A (en) 1954-10-19
FI33212A (en) 1963-04-19
BE538444A (en) 1955-06-15

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