JPS5734026A - Production of high-purity potassium fluorotantalate - Google Patents

Production of high-purity potassium fluorotantalate

Info

Publication number
JPS5734026A
JPS5734026A JP10513080A JP10513080A JPS5734026A JP S5734026 A JPS5734026 A JP S5734026A JP 10513080 A JP10513080 A JP 10513080A JP 10513080 A JP10513080 A JP 10513080A JP S5734026 A JPS5734026 A JP S5734026A
Authority
JP
Japan
Prior art keywords
potassium
solution
tantalum
aqueous solution
compound
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
JP10513080A
Other languages
Japanese (ja)
Inventor
Shigeo Hayashida
Keiji Koyama
Yoshio Miyata
Ryuichi Suzuki
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.)
SHOWA K B I KK
Original Assignee
SHOWA K B I KK
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 SHOWA K B I KK filed Critical SHOWA K B I KK
Priority to JP10513080A priority Critical patent/JPS5734026A/en
Publication of JPS5734026A publication Critical patent/JPS5734026A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: A hydrogen fluoride solution of crude tantalum or crude tantalum compound is gradually added to a potassium compound aqueous solution that has a specific potassium ion concentration and is kept at temperature higher than a specific one and the mixture is cooled to lower than room temperature to effect crystallization, thus producing high-purity potassium fluorotantalate.
CONSTITUTION: Crude tantalum or crude tantalum compound is dissolved in about 70wt% hydrofluoric acid aqueous solution to form a Ta aqueous solution. The concentration of tantalum in the aqueous solution is preferably 0.1W0.5g/l. In the meantime, an aqueous potassium compound solution of 0.01W0.15g/ml potassium ion conceneration such as potassium fluoride solution is prepared and the solution is heated up to higher than 50°C. Then, the above tantalum solution is gradually added to the potassium aqueous solution and they are cooled to lower than room temperature to crystallized out high-purity potassium fluorotantalate.
COPYRIGHT: (C)1982,JPO&Japio
JP10513080A 1980-08-01 1980-08-01 Production of high-purity potassium fluorotantalate Pending JPS5734026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10513080A JPS5734026A (en) 1980-08-01 1980-08-01 Production of high-purity potassium fluorotantalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10513080A JPS5734026A (en) 1980-08-01 1980-08-01 Production of high-purity potassium fluorotantalate

Publications (1)

Publication Number Publication Date
JPS5734026A true JPS5734026A (en) 1982-02-24

Family

ID=14399178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10513080A Pending JPS5734026A (en) 1980-08-01 1980-08-01 Production of high-purity potassium fluorotantalate

Country Status (1)

Country Link
JP (1) JPS5734026A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179171A (en) * 1984-02-24 1985-09-13 Mitsubishi Paper Mills Ltd Coating device
JPS61178059A (en) * 1985-01-31 1986-08-09 Mita Ind Co Ltd Apparatus for coating drum
JPS61291076A (en) * 1985-06-19 1986-12-20 Daicel Chem Ind Ltd Coating method
JPH0421524A (en) * 1990-05-15 1992-01-24 Nikko Kyodo Co Ltd Purification method of potassium tantalum fluoride
WO2003001623A3 (en) * 2001-06-22 2003-04-10 Merck Patent Gmbh Conducting salts comprising niobium or tantalum
CN100413785C (en) * 1999-12-28 2008-08-27 三井金属矿业株式会社 Method for producing potassium fluoride tantalate crystal and potassium fluoride tantalate crystal
CN113428900A (en) * 2021-07-23 2021-09-24 宁夏东方钽业股份有限公司 Method for preparing large-grain potassium fluotantalate by hydrothermal crystallization method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179171A (en) * 1984-02-24 1985-09-13 Mitsubishi Paper Mills Ltd Coating device
JPS61178059A (en) * 1985-01-31 1986-08-09 Mita Ind Co Ltd Apparatus for coating drum
JPS61291076A (en) * 1985-06-19 1986-12-20 Daicel Chem Ind Ltd Coating method
JPH0421524A (en) * 1990-05-15 1992-01-24 Nikko Kyodo Co Ltd Purification method of potassium tantalum fluoride
CN100413785C (en) * 1999-12-28 2008-08-27 三井金属矿业株式会社 Method for producing potassium fluoride tantalate crystal and potassium fluoride tantalate crystal
WO2003001623A3 (en) * 2001-06-22 2003-04-10 Merck Patent Gmbh Conducting salts comprising niobium or tantalum
CN113428900A (en) * 2021-07-23 2021-09-24 宁夏东方钽业股份有限公司 Method for preparing large-grain potassium fluotantalate by hydrothermal crystallization method

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