JPS5547309A - Manufacture of dephosphorizer - Google Patents

Manufacture of dephosphorizer

Info

Publication number
JPS5547309A
JPS5547309A JP11988878A JP11988878A JPS5547309A JP S5547309 A JPS5547309 A JP S5547309A JP 11988878 A JP11988878 A JP 11988878A JP 11988878 A JP11988878 A JP 11988878A JP S5547309 A JPS5547309 A JP S5547309A
Authority
JP
Japan
Prior art keywords
dephosphorizer
fluidized bed
aqueous solution
suspension
iron oxide
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
JP11988878A
Other languages
Japanese (ja)
Other versions
JPS5724045B2 (en
Inventor
Kazunari Yamada
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.)
Tokuyama Corp
Original Assignee
Tokuyama 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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP11988878A priority Critical patent/JPS5547309A/en
Publication of JPS5547309A publication Critical patent/JPS5547309A/en
Publication of JPS5724045B2 publication Critical patent/JPS5724045B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To easily manufacture the granular dephosphorizer possible to greatly reduce the scattering and vaporization, by spraying the suspension prepared from the iron oxide and the solution including one kind or more of aqueous solution of soda ash or the aqueous solution of caustic soda, into the granulating bed of the fluidized bed type granulator-dryer, and by blasting the heating gas into the fluidized bed from the bottom. CONSTITUTION:The suspension is prepared from the iron oxide and either one or both of aqueous solution of soda ash and aqueous solution of caustic soda; in this suspension, the proportion of each constituent is specified as follows; iron oxide 40-75wt%, soda ash or caustic soda 25-60wt%. Particularly desirable proportion is iron oxide 40-75wt%, soda ash 20-45wt% and caustic soda 5-15wt%. This suspension is sprayed from upside of the fluidized bed type granulator-dryer into the fluidized bed of the dephosphorizer being previously built up on the destributor plate, and the heating gas is blasted from the bottom into the fluidized bed; hereby, the granular dephosphorizer with particle size 0.1-2.0mm and specific gravity 0.8- 1.8 is manufactured. This dephosphorizer can be continuously added little by littel to the molten iron depending on the blasting method.
JP11988878A 1978-09-30 1978-09-30 Manufacture of dephosphorizer Granted JPS5547309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11988878A JPS5547309A (en) 1978-09-30 1978-09-30 Manufacture of dephosphorizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11988878A JPS5547309A (en) 1978-09-30 1978-09-30 Manufacture of dephosphorizer

Publications (2)

Publication Number Publication Date
JPS5547309A true JPS5547309A (en) 1980-04-03
JPS5724045B2 JPS5724045B2 (en) 1982-05-21

Family

ID=14772710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11988878A Granted JPS5547309A (en) 1978-09-30 1978-09-30 Manufacture of dephosphorizer

Country Status (1)

Country Link
JP (1) JPS5547309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62181889U (en) * 1986-05-09 1987-11-18
JP2014077165A (en) * 2012-10-10 2014-05-01 Nippon Steel & Sumitomo Metal Dephosphorization refining agent for molten iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62181889U (en) * 1986-05-09 1987-11-18
JP2014077165A (en) * 2012-10-10 2014-05-01 Nippon Steel & Sumitomo Metal Dephosphorization refining agent for molten iron

Also Published As

Publication number Publication date
JPS5724045B2 (en) 1982-05-21

Similar Documents

Publication Publication Date Title
GB1197834A (en) Spray Dried Product for Feed in the Manufacture of Hollow Glass Spheres
ES477362A1 (en) Spherical activated carbon having low dusting property and high physical strength and process for producing the same
DE3364372D1 (en) Cold soluble powdered tea extracts
JPS52119482A (en) Surface-treated inorganic powder and production thereof
JPS53137096A (en) Production of slightly soluble silver salt particles
JPS5547309A (en) Manufacture of dephosphorizer
GB923676A (en) Process for the production of glass
ES464743A1 (en) Production of low density granular sodium tripolyphosphate
SE8205312D0 (en) Flame spraying POWDER
JPS5215498A (en) Process for production of granular corrundum
JPS53114807A (en) Modification of ranulated detergent
ES438818A1 (en) Granules of salts of poly-{60 -hydroxyacrylic acids and a process for their manufacture
GB1119929A (en) Decorative flat glass
ES393286A1 (en) Production of alkali-metal polyphosphates by spray drying
JPS543953A (en) Vibrating type particle shape controlling apparatus
GR3026341T3 (en) Amorphous alkali metal silicate, process and uses.
IE781927L (en) Sodium metasilicate production
DE3065627D1 (en) Detergent composition and process for its production
JPS5616605A (en) Manufacture of ferromagnetic iron-cobalt alloy powder
GB625941A (en) Method for producing spherical metallic granules
JPS5424204A (en) Preparation of alloy of particle dispersion type
JPS56102513A (en) Molded recarburizing material made by utilization of industrial waste containing carbonaceous material
USD214553S (en) Figure
JPS5396990A (en) Production of granulated slag
JPS5345308A (en) Granulated detergent and its production