GB1407429A - Process for treating spent sulphite pulping liquors - Google Patents

Process for treating spent sulphite pulping liquors

Info

Publication number
GB1407429A
GB1407429A GB5557872A GB5557872A GB1407429A GB 1407429 A GB1407429 A GB 1407429A GB 5557872 A GB5557872 A GB 5557872A GB 5557872 A GB5557872 A GB 5557872A GB 1407429 A GB1407429 A GB 1407429A
Authority
GB
United Kingdom
Prior art keywords
treating spent
spent sulphite
pulping liquors
sulphite pulping
liquors
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
GB5557872A
Other languages
English (en)
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.)
Texaco Development Corp
Original Assignee
Texaco Development 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.)
Filing date
Publication date
Application filed by Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB5557872A priority Critical patent/GB1407429A/en
Priority to FR7246398A priority patent/FR2172646A5/fr
Publication of GB1407429A publication Critical patent/GB1407429A/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
    • D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/025—Thermal hydrolysis

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
GB5557872A 1972-02-17 1972-12-01 Process for treating spent sulphite pulping liquors Expired GB1407429A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5557872A GB1407429A (en) 1972-02-17 1972-12-01 Process for treating spent sulphite pulping liquors
FR7246398A FR2172646A5 (enrdf_load_stackoverflow) 1972-02-17 1972-12-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22711572A 1972-02-17 1972-02-17
GB5557872A GB1407429A (en) 1972-02-17 1972-12-01 Process for treating spent sulphite pulping liquors

Publications (1)

Publication Number Publication Date
GB1407429A true GB1407429A (en) 1975-09-24

Family

ID=32964156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5557872A Expired GB1407429A (en) 1972-02-17 1972-12-01 Process for treating spent sulphite pulping liquors

Country Status (2)

Country Link
FR (1) FR2172646A5 (enrdf_load_stackoverflow)
GB (1) GB1407429A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208245A (en) * 1977-02-03 1980-06-17 St. Regis Paper Company Pyrolysis of spent pulping liquors
RU2126863C1 (ru) * 1993-03-11 1999-02-27 Квэрнер Пулпинг Текнолоджис АБ Способ отделения серных соединений (варианты)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208245A (en) * 1977-02-03 1980-06-17 St. Regis Paper Company Pyrolysis of spent pulping liquors
RU2126863C1 (ru) * 1993-03-11 1999-02-27 Квэрнер Пулпинг Текнолоджис АБ Способ отделения серных соединений (варианты)

Also Published As

Publication number Publication date
FR2172646A5 (enrdf_load_stackoverflow) 1973-09-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee