KR950000569A - Process for producing stabilized zirconia from zircon sand - Google Patents

Process for producing stabilized zirconia from zircon sand Download PDF

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Publication number
KR950000569A
KR950000569A KR1019930010996A KR930010996A KR950000569A KR 950000569 A KR950000569 A KR 950000569A KR 1019930010996 A KR1019930010996 A KR 1019930010996A KR 930010996 A KR930010996 A KR 930010996A KR 950000569 A KR950000569 A KR 950000569A
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KR
South Korea
Prior art keywords
zircon sand
stabilized zirconia
producing stabilized
carbon
cao
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Application number
KR1019930010996A
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Korean (ko)
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KR960016702B1 (en
Inventor
서인국
신형기
양홍직
Original Assignee
박득표
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Priority to KR1019930010996A priority Critical patent/KR960016702B1/en
Publication of KR950000569A publication Critical patent/KR950000569A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides

Abstract

본 발명은 지로콘 샌드로부터 안정화 지르코니아를 제조하는 방법에 관한 것으로서, 종래 방법보다 제조공정이 더 간단하고 경제적이며, 폐수등의 환경 오염물질이 발생하지 않는 열 프라즈마를 이용한 안정화 지르코니아 제조방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for producing stabilized zirconia from zircon sand, and to provide a method for producing stabilized zirconia using heat plasma that is simpler and more economical than conventional methods and does not generate environmental pollutants such as wastewater. There is a purpose.

본 발명은 CaO/지르콘 샌드의 몰비가 0.5 이상, 탄소/지르콘샌드의 몰비가 1 이상이 되도록 지르콘 샌드에 CaO 안정화제 및 탄소를 첨가하여 혼합하는 단계; 상기와 같이 혼합된 혼합물을 단광으로 제조하는 단계; 상기 단광을 고온의 열 프라즈마에 의해 가열 용융한 후 냉각하고 이때 생성된 고체 생성물을 회수,분쇄하는 단계를 포함하여 보다 간단하고 보다 경제적으로 지르콘샌드로부터 안정화 지르코니아를 제조하는 방법을 그 요지로 한다.The present invention comprises the steps of mixing by adding a CaO stabilizer and carbon to the zircon sand so that the molar ratio of CaO / zircon sand is 0.5 or more, the mole ratio of carbon / zircon sand is 1 or more; Preparing the mixed mixture as briquettes as described above; A method for producing stabilized zirconia from zircon sand is simpler and more economically, including the step of heating and melting the briquettes by high temperature thermal plasma, and then cooling and recovering the resulting solid product.

Description

지르콘 샌드로부터 안정화 지르코니아의 제조방법Process for producing stabilized zirconia from zircon sand

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 습식법에 의하여 지르콘 샌드로부터 안정화 지르코니아를 제조하는 제조공정도, 제 3 도는 단광시료를 수냉 동 도가니에 넣어 고온 프라즈마에 의해 용융하는 작업상태를 나타내는 개략도.1 is a manufacturing process diagram for producing stabilized zirconia from zircon sand by the wet method, and FIG. 3 is a schematic diagram showing a working state in which briquette samples are placed in a water-cooled copper crucible and melted by high temperature plasma.

Claims (3)

CaO/지르콘 샌드의 몰비가 0.5 이상, 탄소/지르콘샌드의 몰비가 1 이상이 되도록 지르콘 샌드에 CaO 안정화제 및 탄소를 첨가하여 혼합하는 단계; 상기와 같이 혼합된 혼합물을 단광으로 제조하는 단계; 상기 단광을 고온의 열프라즈마에 의해 가열 용융한 후 냉각하고 이때 생성된 고체 생성물을 회수,분쇄하는 단계를 포함하여 구성됨을 특징으로 하는 지르콘 샌드로부터 안정화 지르코니아의 제조방법.Adding and mixing a CaO stabilizer and carbon to the zircon sand such that the molar ratio of CaO / zircon sand is 0.5 or more and the molar ratio of carbon / zircon sand is 1 or more; Preparing the mixed mixture as briquettes as described above; Method of producing a stabilized zirconia from zircon sand characterized in that it comprises the step of heating and melting the briquettes by high temperature thermal plasma and then recovering and pulverizing the solid product produced. 제 1 항에 있어서, 열 프라즈마에 의한 가열시간이 2-7분인 것을 특징으로 하는 지르콘 샌드로부터 안정화 지르코니아의 제조방법.The method for producing stabilized zirconia from zircon sand according to claim 1, wherein the heating time by thermal plasma is 2-7 minutes. 제 1 항 또는 제 2 항에 있어서, 탄소/지르콘샌드의 몰비가 2.0-4.0이고, CaO/지르콘 샌드의 몰비가 0.5-0.8인 것을 특징으로 하는 지르콘 샌드로부터 안정화 지르코니아의 제조방법The method for producing stabilized zirconia from zircon sand according to claim 1 or 2, wherein the molar ratio of carbon / zircon sand is 2.0-4.0 and the molar ratio of CaO / zircon sand is 0.5-0.8. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930010996A 1993-06-16 1993-06-16 Process for producing stabilized zirconia from zircon sand KR960016702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930010996A KR960016702B1 (en) 1993-06-16 1993-06-16 Process for producing stabilized zirconia from zircon sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930010996A KR960016702B1 (en) 1993-06-16 1993-06-16 Process for producing stabilized zirconia from zircon sand

Publications (2)

Publication Number Publication Date
KR950000569A true KR950000569A (en) 1995-01-03
KR960016702B1 KR960016702B1 (en) 1996-12-20

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KR1019930010996A KR960016702B1 (en) 1993-06-16 1993-06-16 Process for producing stabilized zirconia from zircon sand

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KR960016702B1 (en) 1996-12-20

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