JPS57205316A - Synthesizing method for ettringite - Google Patents

Synthesizing method for ettringite

Info

Publication number
JPS57205316A
JPS57205316A JP8994981A JP8994981A JPS57205316A JP S57205316 A JPS57205316 A JP S57205316A JP 8994981 A JP8994981 A JP 8994981A JP 8994981 A JP8994981 A JP 8994981A JP S57205316 A JPS57205316 A JP S57205316A
Authority
JP
Japan
Prior art keywords
ettringite
concn
starting material
amount
aqueous soln
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
JP8994981A
Other languages
Japanese (ja)
Inventor
Yoshiro Ibuki
Hideo Tamura
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP8994981A priority Critical patent/JPS57205316A/en
Publication of JPS57205316A publication Critical patent/JPS57205316A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To synthesize ettringite in a short time by dissolving sodium aluminate, a starting material for lime and a starting material for gypsum in water to prepare an aqueous soln. having a specified concn. on the basis of the amount of formed ettringite and agitating the soln. with heating for a specified time.
CONSTITUTION: Sodium aluminate, a starting material for lime and a starting material for gypsum are dissolved in water to prepare an aqueous soln. having about 0.01W0.1mol/l concn. on the basis of the amount of formed ettringite. When the amount of formed ettringite is Xmol and the amount of the aqueous soln. is Yl, the concn. is adjusted to X/Ymol/l. In case where the concn. is not within the range, ettringite forming reaction proceeds hardly. By agitating the aqueous soln. with heating for 20min W 2hr, ettringite is formed rapidly. By continuing the agitation for ≥2hr, formed ettringite crystals are broken.
COPYRIGHT: (C)1982,JPO&Japio
JP8994981A 1981-06-10 1981-06-10 Synthesizing method for ettringite Pending JPS57205316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8994981A JPS57205316A (en) 1981-06-10 1981-06-10 Synthesizing method for ettringite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8994981A JPS57205316A (en) 1981-06-10 1981-06-10 Synthesizing method for ettringite

Publications (1)

Publication Number Publication Date
JPS57205316A true JPS57205316A (en) 1982-12-16

Family

ID=13984949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8994981A Pending JPS57205316A (en) 1981-06-10 1981-06-10 Synthesizing method for ettringite

Country Status (1)

Country Link
JP (1) JPS57205316A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035807A1 (en) * 1996-03-22 1997-10-02 Rethmann Lippewerk Recycling Gmbh Process for preparing a precipitate based on calcium aluminate sulphate (casul) and its use

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553360A (en) * 1978-06-22 1980-01-11 Kubota Ltd Ettringite synthesizing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553360A (en) * 1978-06-22 1980-01-11 Kubota Ltd Ettringite synthesizing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035807A1 (en) * 1996-03-22 1997-10-02 Rethmann Lippewerk Recycling Gmbh Process for preparing a precipitate based on calcium aluminate sulphate (casul) and its use

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