ES8605847A1 - Procedimiento para la obtencion de formulaciones estabilizadas de ditionito sodico que contienen liquidos organicos inertes - Google Patents

Procedimiento para la obtencion de formulaciones estabilizadas de ditionito sodico que contienen liquidos organicos inertes

Info

Publication number
ES8605847A1
ES8605847A1 ES536701A ES536701A ES8605847A1 ES 8605847 A1 ES8605847 A1 ES 8605847A1 ES 536701 A ES536701 A ES 536701A ES 536701 A ES536701 A ES 536701A ES 8605847 A1 ES8605847 A1 ES 8605847A1
Authority
ES
Spain
Prior art keywords
inert organic
stable
sodium dithionite
organic liquid
containing sodium
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
ES536701A
Other languages
English (en)
Other versions
ES536701A0 (es
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of ES536701A0 publication Critical patent/ES536701A0/es
Publication of ES8605847A1 publication Critical patent/ES8605847A1/es
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
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)
    • C01B17/665—Stabilisation by additives subsequent to preparation; Dust prevention by additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo
    • D06P1/221—Reducing systems; Reducing catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Paper (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Coloring (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE FORMULACIONES ESTABILIZADAS DE DITIONITO SODICO, QUE CONTIENEN LIQUIDOS ORGANICOS QUE ESTAN ESTABILIZADOS Y NO TIENEN EL ENCENDIDO ESPONTANEO. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE MUELE EL DITIONITO SODICO HASTA UN GRADO PULVERULENTO; SEGUNDA, SE TRATA EL DITIONITO SODICO MOLIDO CON UN LIQUIDO ORGANICO, INERTE FRENTE AL DITIONITO SODICO, CUYO PUNTO DE EBULLICION O BIEN CUYO MARGEN DE EBULLICION SE ENCUENTRE PREFERENTEMENTE POR ENCIMA DE LOS 64,7 GRADOS; Y POR ULTIMO, MEDIANTE AMASADO INTENSO SE FORMA UNA PASTA Y SE REGULA LA VISCOSIDAD DE DICHA PASTA ENTRE 1 Y 1.500 PA.S. DE APLICACION EN LA PREPARACION DE AGENTES BLANQUEANTES DE PASTAS MECANICAS.
ES536701A 1983-10-14 1984-10-11 Procedimiento para la obtencion de formulaciones estabilizadas de ditionito sodico que contienen liquidos organicos inertes Expired ES8605847A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833337388 DE3337388A1 (de) 1983-10-14 1983-10-14 Stabilisierte, inerte organische fluessigkeiten enthaltende natriumdithionitzubereitungen und deren verwendung

Publications (2)

Publication Number Publication Date
ES536701A0 ES536701A0 (es) 1985-12-16
ES8605847A1 true ES8605847A1 (es) 1985-12-16

Family

ID=6211818

Family Applications (1)

Application Number Title Priority Date Filing Date
ES536701A Expired ES8605847A1 (es) 1983-10-14 1984-10-11 Procedimiento para la obtencion de formulaciones estabilizadas de ditionito sodico que contienen liquidos organicos inertes

Country Status (8)

Country Link
US (1) US4614647A (es)
EP (1) EP0140218B1 (es)
JP (1) JPS60108304A (es)
CA (1) CA1226718A (es)
DE (2) DE3337388A1 (es)
ES (1) ES8605847A1 (es)
FI (1) FI77479C (es)
ZA (1) ZA847976B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406322A1 (de) * 1984-02-22 1985-08-22 Basf Ag, 6700 Ludwigshafen Stabilisierte, wasser enthaltende, alkalisch eingestellte natriumdithionitzubereitungen
DE3644459A1 (de) * 1986-12-24 1988-07-07 Basf Ag Kontinuierliches verfahren zur herstellung von loesungen aus niederviskosen loesungsmitteln und hochviskosen, pastoesen produkten
DE3716658A1 (de) * 1987-05-19 1988-12-01 Basf Ag Verfahren zur herstellung von hochkonzentrierten, pumpbaren, sedimentationsfreien hydrosulfitpasten
CN112957649B (zh) * 2021-02-05 2022-06-17 茂名职业技术学院 一种保险粉火灾扑救液体灭火剂及相应的缓释型保险粉

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE171362C (es) *
US1810663A (en) * 1930-04-30 1931-06-16 Rit Products Corp Stripper for fabrics
GB695375A (en) * 1950-07-13 1953-08-12 Yorkshire Dyeware & Chem Co Improvements in and relating to the treatment of sodium hydrosulphite
GB717207A (en) * 1952-02-26 1954-10-20 Ethyl Corp Improvements in or relating to the preparation of alkali metal hyposulfite
NL301295A (es) * 1962-12-11
DE1220399B (de) * 1962-12-22 1966-07-07 Basf Ag Als Reduktionsmittel geeignete gegen thermische Zersetzung stabilisierte dithionithaltige Mischungen
US3839218A (en) * 1970-01-09 1974-10-01 Rohm & Haas Method of maintaining metal dithionite hydrate crystals in dispersible form
US3839217A (en) * 1970-01-09 1974-10-01 Rohm & Haas Stable, pourable alkali metal dithionite dispersion
US3669895A (en) * 1970-08-31 1972-06-13 Virginia Chemicals Inc Sodium hydrosulfite stabilization composition
US4059533A (en) * 1974-10-29 1977-11-22 Halliburton Company Oxygen scavenging methods and additives
JPS53142398A (en) * 1977-05-17 1978-12-12 Mitsubishi Gas Chem Co Inc Production of dithionite

Also Published As

Publication number Publication date
ZA847976B (en) 1985-06-26
EP0140218A2 (de) 1985-05-08
US4614647A (en) 1986-09-30
EP0140218A3 (en) 1987-05-20
FI844002A0 (fi) 1984-10-11
FI77479C (fi) 1989-03-10
ES536701A0 (es) 1985-12-16
FI844002L (fi) 1985-04-15
DE3475901D1 (en) 1989-02-09
CA1226718A (en) 1987-09-15
JPS60108304A (ja) 1985-06-13
DE3337388A1 (de) 1985-04-25
FI77479B (fi) 1988-11-30
EP0140218B1 (de) 1989-01-04

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001102