IT7821315A0 - Procedimento per ricuperare alcali caustici da liquidi alcalini esausti. - Google Patents

Procedimento per ricuperare alcali caustici da liquidi alcalini esausti.

Info

Publication number
IT7821315A0
IT7821315A0 IT7821315A IT2131578A IT7821315A0 IT 7821315 A0 IT7821315 A0 IT 7821315A0 IT 7821315 A IT7821315 A IT 7821315A IT 2131578 A IT2131578 A IT 2131578A IT 7821315 A0 IT7821315 A0 IT 7821315A0
Authority
IT
Italy
Prior art keywords
procedure
caustic alkali
alkaline liquids
exhausted
recovering caustic
Prior art date
Application number
IT7821315A
Other languages
English (en)
Other versions
IT1095474B (it
Original Assignee
Nittetsu Kakoki Kk
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 Nittetsu Kakoki Kk filed Critical Nittetsu Kakoki Kk
Publication of IT7821315A0 publication Critical patent/IT7821315A0/it
Application granted granted Critical
Publication of IT1095474B publication Critical patent/IT1095474B/it

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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • D21C11/0092—Substances modifying the evaporation, combustion, or thermal decomposition processes of black liquor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT21315/78A 1977-10-05 1978-03-17 Procedimento per ricuperare alcali caustici da liquidi alcalini esausti IT1095474B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11901577A JPS5452697A (en) 1977-10-05 1977-10-05 Method of hydrogenating ferric acid alkali

Publications (2)

Publication Number Publication Date
IT7821315A0 true IT7821315A0 (it) 1978-03-17
IT1095474B IT1095474B (it) 1985-08-10

Family

ID=14750867

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21315/78A IT1095474B (it) 1977-10-05 1978-03-17 Procedimento per ricuperare alcali caustici da liquidi alcalini esausti

Country Status (7)

Country Link
US (1) US4169131A (it)
JP (1) JPS5452697A (it)
DE (1) DE2810878A1 (it)
FR (1) FR2405217A1 (it)
GB (1) GB1599074A (it)
IT (1) IT1095474B (it)
NL (1) NL187062C (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1188485A (en) * 1982-03-25 1985-06-11 Kien L. Nguyen Alkali regeneration process
JPS59136924A (ja) * 1983-01-25 1984-08-06 株式会社村田製作所 電子部品の樹脂封止方法
JPS59227719A (ja) * 1983-06-07 1984-12-21 Babcock Hitachi Kk 苛性ソ−ダの回収方法
CN103408039B (zh) * 2013-08-28 2014-12-10 郑州中南杰特超硬材料有限公司 立方氮化硼合成尾料中碱回收工艺与回收设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1757592A (en) * 1925-11-06 1930-05-06 Henry M Schleicher Autoclave and method of operating same
DE586972C (de) * 1930-11-04 1933-10-28 Paul Krassa Dr Herstellung von AEtznatron
DE707152C (de) * 1939-08-22 1941-06-14 Rudolf Koepp & Co Chem Fab A G Verfahren zur Herstellung von Alkalihydroxyd ueber Alkaliferrit
US2474916A (en) * 1947-10-28 1949-07-05 Metal & Thermit Corp Production of caustic soda

Also Published As

Publication number Publication date
US4169131A (en) 1979-09-25
NL187062C (nl) 1991-05-16
FR2405217B1 (it) 1983-10-14
NL187062B (nl) 1990-12-17
DE2810878A1 (de) 1979-04-26
NL7802807A (nl) 1979-04-09
GB1599074A (en) 1981-09-30
JPS5452697A (en) 1979-04-25
FR2405217A1 (fr) 1979-05-04
IT1095474B (it) 1985-08-10
DE2810878C2 (it) 1988-06-23
JPS572647B2 (it) 1982-01-18

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