FR2132660A1 - Sodium chlorite granules prodn - Google Patents

Sodium chlorite granules prodn

Info

Publication number
FR2132660A1
FR2132660A1 FR7210311A FR7210311A FR2132660A1 FR 2132660 A1 FR2132660 A1 FR 2132660A1 FR 7210311 A FR7210311 A FR 7210311A FR 7210311 A FR7210311 A FR 7210311A FR 2132660 A1 FR2132660 A1 FR 2132660A1
Authority
FR
France
Prior art keywords
bed
dryer
granules
prodn
sodium chlorite
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.)
Granted
Application number
FR7210311A
Other languages
French (fr)
Other versions
FR2132660B1 (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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of FR2132660A1 publication Critical patent/FR2132660A1/en
Application granted granted Critical
Publication of FR2132660B1 publication Critical patent/FR2132660B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/08—Chlorous acid
    • C01B11/10—Chlorites
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Microbiology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Seasonings (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Glanulating (AREA)
  • Detergent Compositions (AREA)

Abstract

Granules containing NaClO2 are produced from the aqueous medium containing NaClO2 by introducing the medium into a fluidized-bed dryer and evaporating the water in the presence of seeds whose diameters are less than those of the desired granules. The seeds may be introduced into the dryer from an external source or they may be formed in situ. by mechanical destruction of part of the particles in the bed, or they may be obtained by spray-drying and aqueous medium. The base of the dryer may be provided with a scraper to prevent the bed particles from settling. The bed temp. is pref. 80 degrees C. The carrier gas injected into the base of the bed is pref. at 180 degrees C.
FR7210311A 1971-04-13 1972-03-23 Sodium chlorite granules prodn Granted FR2132660A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE102099 1971-04-13

Publications (2)

Publication Number Publication Date
FR2132660A1 true FR2132660A1 (en) 1972-11-24
FR2132660B1 FR2132660B1 (en) 1976-08-06

Family

ID=3841502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7210311A Granted FR2132660A1 (en) 1971-04-13 1972-03-23 Sodium chlorite granules prodn

Country Status (7)

Country Link
JP (1) JPS5518644B1 (en)
CH (1) CH546705A (en)
DE (1) DE2215112C3 (en)
ES (1) ES401414A1 (en)
FR (1) FR2132660A1 (en)
IT (1) IT950231B (en)
NL (1) NL7204345A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02168097A (en) * 1988-12-20 1990-06-28 Aoki Corp Muffling pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2132660B1 (en) 1976-08-06
JPS5518644B1 (en) 1980-05-20
CH546705A (en) 1974-03-15
IT950231B (en) 1973-06-20
DE2215112A1 (en) 1972-10-26
DE2215112C3 (en) 1981-05-07
NL7204345A (en) 1972-10-17
DE2215112B2 (en) 1980-07-24
ES401414A1 (en) 1975-02-16

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Legal Events

Date Code Title Description
ST Notification of lapse