JPS553361A - Tobermolite synthesizing method - Google Patents

Tobermolite synthesizing method

Info

Publication number
JPS553361A
JPS553361A JP7614578A JP7614578A JPS553361A JP S553361 A JPS553361 A JP S553361A JP 7614578 A JP7614578 A JP 7614578A JP 7614578 A JP7614578 A JP 7614578A JP S553361 A JPS553361 A JP S553361A
Authority
JP
Japan
Prior art keywords
suspension
tobermolite
raw material
cao
sio
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
JP7614578A
Other languages
Japanese (ja)
Other versions
JPS6229369B2 (en
Inventor
Hideo Tamura
Yoshiro Ibuki
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 JP7614578A priority Critical patent/JPS553361A/en
Priority to US06/051,057 priority patent/US4243429A/en
Priority to EP79102075A priority patent/EP0006593B1/en
Priority to DE7979102075T priority patent/DE2965242D1/en
Publication of JPS553361A publication Critical patent/JPS553361A/en
Priority to US06/242,230 priority patent/US4432804A/en
Publication of JPS6229369B2 publication Critical patent/JPS6229369B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To obtain tobermolite with good cyrstallinity and superior heat resistance by turning a silicate of a restiricted Al2O3 content and lime raw material in a specified molar ratio of SiO2/CaO into a suspension in the presence of alkali and by subjecting the suspension to hydrothermal reaction with steam.
CONSTITUTION: A silicate contg. 10W40% Al2O3, e.g. kaolin and lime raw material are adjusted to the molar ratio of SiO2/CaO=0.7W1.2 and turned into a suspension in the presence of alkali such as 10W200 g/l NaOH. The suspension is then reacted with steam of 4W40 kg/cm2 at ordinary temp. W90°C. By this method a solid phase component based on aluminum-contg. tobermolite and a liquid phase component used as raw material for ettringite are obtd.
COPYRIGHT: (C)1980,JPO&Japio
JP7614578A 1978-06-22 1978-06-22 Tobermolite synthesizing method Granted JPS553361A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7614578A JPS553361A (en) 1978-06-22 1978-06-22 Tobermolite synthesizing method
US06/051,057 US4243429A (en) 1978-06-22 1979-06-22 Process for producing tobermorite and ettringite
EP79102075A EP0006593B1 (en) 1978-06-22 1979-06-22 Process for producing tobermorite and ettringite
DE7979102075T DE2965242D1 (en) 1978-06-22 1979-06-22 Process for producing tobermorite and ettringite
US06/242,230 US4432804A (en) 1978-06-22 1981-03-10 Process for producing a mixture of tobermorite and ettringite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7614578A JPS553361A (en) 1978-06-22 1978-06-22 Tobermolite synthesizing method

Publications (2)

Publication Number Publication Date
JPS553361A true JPS553361A (en) 1980-01-11
JPS6229369B2 JPS6229369B2 (en) 1987-06-25

Family

ID=13596825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7614578A Granted JPS553361A (en) 1978-06-22 1978-06-22 Tobermolite synthesizing method

Country Status (1)

Country Link
JP (1) JPS553361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756316A (en) * 1980-09-15 1982-04-03 Kubota Ltd Manufacture of tobermorite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133900A (en) * 1976-05-04 1977-11-09 Mitsubishi Chem Ind Ltd Production of calcium silicate hydrate crystal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133900A (en) * 1976-05-04 1977-11-09 Mitsubishi Chem Ind Ltd Production of calcium silicate hydrate crystal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756316A (en) * 1980-09-15 1982-04-03 Kubota Ltd Manufacture of tobermorite

Also Published As

Publication number Publication date
JPS6229369B2 (en) 1987-06-25

Similar Documents

Publication Publication Date Title
EP0177769A3 (en) Process for preparing calcium hydroxide
JPS551851A (en) Dehydration of organic sludge
RO86213B (en) Process for preparing isobutene
US4108677A (en) Process for treating waste sludge from combustion plant desulfurization units and cementitious product of the process
DK166883A (en) PROCEDURE FOR PREPARING ALUMINUM AND IRONIC ACID WASTE
DE3260889D1 (en) Manufacture of zsm-zeolites
JPS5644100A (en) Dehydration/caking treating method of sludge
JPS553371A (en) Production of titania hydrate fiber, titania glass fiber and titania fiber
JPS5416398A (en) Production of low soda alumina
JPS553359A (en) Ettringite synthesizing method
JPS57135715A (en) Preparation of porous modified sepiolite
JPS5370100A (en) Production of fibrous hydrous alkali calcium silicate
JPS52133900A (en) Production of calcium silicate hydrate crystal
JPS5510465A (en) Production of fibrous calcium potassium silicate
ZONNCHEN et al. INVESTIGATIONS ON THE SYSTEM CAO-SIO 2-NAOH-H 2 O IN HYDROTHERMAL CONDITIONS UNDER ATMOSPHERIC PRESSURE. PT. 1. VARIATION IN THE MATERIAL PARAMETERS OF THE INITIAL COMPOSITION AND ITS EFFECT ON PHASE TRANSFORMATION
JPS53100984A (en) Production of exhaust gas treatment catalyst
JPS5742515A (en) Production of silicon nitride
EP0816843A3 (en) Process for dehydrating a mineral oil or other solvents for the preparation of moisture-in-oil or moisture-in-solvent standards
JPS5748925A (en) Preparation of trimethylbenzene
JPS56104710A (en) Preparation of calcium silicate fiber
JPS52139695A (en) Production of calcium peroxide
JPS5523088A (en) Production of calcium sodium silicate
SU706344A1 (en) Enamel
JPS553372A (en) Production of titania hydrate and amorphous titania
JPS5742516A (en) Production of silicon nitride