JPS5845308A - Adding method of ca to molten iron - Google Patents

Adding method of ca to molten iron

Info

Publication number
JPS5845308A
JPS5845308A JP56143336A JP14333681A JPS5845308A JP S5845308 A JPS5845308 A JP S5845308A JP 56143336 A JP56143336 A JP 56143336A JP 14333681 A JP14333681 A JP 14333681A JP S5845308 A JPS5845308 A JP S5845308A
Authority
JP
Japan
Prior art keywords
molten iron
cacl2
cathode
anode
carbon electrode
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.)
Pending
Application number
JP56143336A
Other languages
Japanese (ja)
Inventor
Chobe Taguchi
田口　長兵衛
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56143336A priority Critical patent/JPS5845308A/en
Publication of JPS5845308A publication Critical patent/JPS5845308A/en
Pending 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

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 incorporate with Ca easily into molten iron by charging and melting CaCl2 onto the melt surface of pig iron and electrolyzing the same. CONSTITUTION:A carbon electrode plate is disposed as a cathode on the bottom of a ladle, and molten iron of about 1,400-1,550 deg.C is charged therein, then, CaCl2 is charged therein. CaCl2 having about 772 deg.C m.p. and about >=1,600 deg.C b.p. melts easily in the molten iron. A porous carbon electrode plate as an anode is floated on the molten iron, and electricity is conduted between both electrodes, whereby Ca is deposited on the cathode and gaseous Cl2 is generated on the anode. The Ca deposited on the cathode diffuses easily in the molten iron and alloys. The purposes of removing P and S from the molten iron are achieved easily and inexpensively.

Description

【発明の詳細な説明】 銑鉄中のＰおよびＳを除去することは鋼をつくる上に極
めて大切である。今日、これらの作業はＣａＯ、Ｎａｚ
　ＣＯｓおよびＣａＣｌ２を用いて行なっているが効率
が悪い。金属ＣａＪ＝・よびＣａ合金を添加すれば効率
のよいことは判然としているが高価で多用性に乏しい。DETAILED DESCRIPTION OF THE INVENTION Removing P and S from pig iron is extremely important in making steel. Today, these tasks are carried out by CaO, Naz
This has been done using COs and CaCl2, but the efficiency is poor. It is clear that the addition of metal CaJ=. and Ca alloy is more efficient, but it is expensive and lacks versatility.

本発明はか＼る事情に鑑みなされたものである。The present invention has been made in view of the above circumstances.

即ち、溶銑の上に安価なＣａＣ１ｚを投入し、これを溶
融し、溶銑を陰極に、ＣａＣｌ２を陽極に接合してＣａ
ＣＩ　ｚを電気分解し、溶銑中にＣａを含有せしめる方
法に関するものである。That is, cheap CaC1z is poured onto hot metal, it is melted, and CaCl2 is joined to the cathode and CaCl2 to the anode.
The present invention relates to a method of electrolyzing CI z and incorporating Ca into hot metal.

ＣａＣ１ｇの溶融点は７７２°Ｃで沸騰点は１６０００
以上である。The melting point of 1g of CaC is 772°C and the boiling point is 16,000°C.
That's all.

従って、ＣａＣｌ２を溶銑（１４００〜１５５０℃）中
に投入すれば容易に溶融する。Therefore, if CaCl2 is poured into hot metal (1400 to 1550°C), it will be easily melted.

ＣａＣｌ２の塩浴を炭素電極を用いて電気分解すれば陰
極にＣａが析出し、陽極にＣ１２ガスが発生する。When a CaCl2 salt bath is electrolyzed using a carbon electrode, Ca is deposited at the cathode and C12 gas is generated at the anode.

従って、陰極に析出したＣａは溶銑に容易に拡散し、合
金化する。Therefore, Ca deposited on the cathode easily diffuses into the hot metal and alloys it.

次に実施例を示す。Next, examples will be shown.

実施例 取鍋の底に炭素電極板（２０ｘ　３００ｍｍ１ｉ１１）
　　を設置し、この中に溶銑を２００に９投入、つづい
てＣａＣｊ　２を２０に９投入、この上に更に多孔質の
炭素電極板（２０ｘ　３００Ｉ＋ｍＯ）を浮かせ、前者
を陰極とし、後者を陽極とし、通電（陰極通電密度：　
ｔｏｏＡ／ｍ。Example Carbon electrode plate (20x 300mm1i11) at the bottom of the ladle
Into this, hot metal was put into 200:9, then CaCj 2:20 was put into it, and a porous carbon electrode plate (20x 300I+mO) was floated on top of this, and the former was used as the cathode and the latter was used as the anode. , energization (cathode energization density:
tooA/m.

電圧：　２５Ｖ）　した場合の通電時間と溶銑・のＣａ
含有量との関係を次に示す。Voltage: 25V) energizing time and Ca of hot metal
The relationship with content is shown below.

以上のように５秒通電するとＣａが００２１　ｗ　ｔ０
％、ｌＯ秒通電するとＣａが０．０３８ｗｔ、％、３０
０秒通電るとＣａが００８ｗｔ０％、６００秒通電ると
Ｃａが（１１２８ｗｔ、％　溶銑に拡散することが判明
した。When the current is turned on for 5 seconds as described above, Ca becomes 0021 w t0
%, when current is applied for 10 seconds, Ca is 0.038wt, %, 30
It was found that when the current was applied for 0 seconds, Ca was 0% by weight, and when the current was applied for 600 seconds, Ca was diffused into the hot metal (1128wt%).

特許出願人　　田口長兵衛０Patent applicant Chobei Taguchi0

Claims (1)

【特許請求の範囲】[Claims] 溶銑へのＣａの添加法。Method of adding Ca to hot metal.
JP56143336A 1981-09-11 1981-09-11 Adding method of ca to molten iron Pending JPS5845308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56143336A JPS5845308A (en) 1981-09-11 1981-09-11 Adding method of ca to molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56143336A JPS5845308A (en) 1981-09-11 1981-09-11 Adding method of ca to molten iron

Publications (1)

Publication Number Publication Date
JPS5845308A true JPS5845308A (en) 1983-03-16

Family

ID=15336407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56143336A Pending JPS5845308A (en) 1981-09-11 1981-09-11 Adding method of ca to molten iron

Country Status (1)

Country Link
JP (1) JPS5845308A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140602U (en) * 1984-02-29 1985-09-18 株式会社クボタ Sludge scraping device in a two-story rectangular settling tank
JPS63104621A (en) * 1986-10-22 1988-05-10 Showa Denko Kk Thickening equipment for sediment
JP2011516265A (en) * 2008-03-10 2011-05-26 王宇新 Treatment method and dedicated casting apparatus for preventing spheroidization inhibition and lowering of casting temperature during casting of ductile cast iron melt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140602U (en) * 1984-02-29 1985-09-18 株式会社クボタ Sludge scraping device in a two-story rectangular settling tank
JPS64968Y2 (en) * 1984-02-29 1989-01-11
JPS63104621A (en) * 1986-10-22 1988-05-10 Showa Denko Kk Thickening equipment for sediment
JPH0459002B2 (en) * 1986-10-22 1992-09-21 Showa Denko Kk
JP2011516265A (en) * 2008-03-10 2011-05-26 王宇新 Treatment method and dedicated casting apparatus for preventing spheroidization inhibition and lowering of casting temperature during casting of ductile cast iron melt
KR101263418B1 (en) 2008-03-10 2013-05-10 우신 왕 Method for treating spheroidal graphite iron and pouring device thereof

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