GB217685A - Process for regenerating alkaline liquors - Google Patents

Process for regenerating alkaline liquors

Info

Publication number
GB217685A
GB217685A GB947823A GB947823A GB217685A GB 217685 A GB217685 A GB 217685A GB 947823 A GB947823 A GB 947823A GB 947823 A GB947823 A GB 947823A GB 217685 A GB217685 A GB 217685A
Authority
GB
United Kingdom
Prior art keywords
liquors
catalyst
cellulose
oxygen
compounds
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
GB947823A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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
Priority to FR559515D priority Critical patent/FR559515A/en
Application filed by Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to GB947823A priority patent/GB217685A/en
Publication of GB217685A publication Critical patent/GB217685A/en
Expired legal-status Critical Current

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/14—Wet combustion ; Treatment of pulp liquors without previous evaporation, by oxidation of the liquors remaining at least partially in the liquid phase, e.g. by application or pressure

Landscapes

  • Catalysts (AREA)

Abstract

Alkali metal compounds, recovering from liquors containing organic substances. Organic matter in alkaline liquors such as cellulose boiling liquors and mercerizing liquors, are destroyed by heating with chlorine oxygen compounds or nitrogen-oxygen compounds such as chlorates, nitrates and nitrites under pressure in the presence of catalyst such as the heavy metals, their oxides and salts. The solution may be made to trickle down through the catalyst in a tower-like autoclave. Examples describe the treatment of cellulose liquors at 140-180 DEG C. with sodium chlorate and sodium nitrate respectively in presence of copper wire netting and a mixture of carbon and iron oxide respectively. Oxygen may be introduced to facilitate the reaction, and the alkali carbonate produced may be caustified.
GB947823A 1923-04-06 1923-04-06 Process for regenerating alkaline liquors Expired GB217685A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR559515D FR559515A (en) 1923-04-06 1922-12-07 Process for oxidizing organic substances in alkaline liquors
GB947823A GB217685A (en) 1923-04-06 1923-04-06 Process for regenerating alkaline liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB947823A GB217685A (en) 1923-04-06 1923-04-06 Process for regenerating alkaline liquors

Publications (1)

Publication Number Publication Date
GB217685A true GB217685A (en) 1924-06-26

Family

ID=9872733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB947823A Expired GB217685A (en) 1923-04-06 1923-04-06 Process for regenerating alkaline liquors

Country Status (2)

Country Link
FR (1) FR559515A (en)
GB (1) GB217685A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748638A1 (en) * 1977-10-29 1979-05-10 Hoechst Ag WASTE WATER TREATMENT METHOD

Also Published As

Publication number Publication date
FR559515A (en) 1923-09-17

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