AU3294089A - Process for preparing calcium sulphate of elongated crystalline structure - Google Patents
Process for preparing calcium sulphate of elongated crystalline structureInfo
- Publication number
- AU3294089A AU3294089A AU32940/89A AU3294089A AU3294089A AU 3294089 A AU3294089 A AU 3294089A AU 32940/89 A AU32940/89 A AU 32940/89A AU 3294089 A AU3294089 A AU 3294089A AU 3294089 A AU3294089 A AU 3294089A
- Authority
- AU
- Australia
- Prior art keywords
- crystalline structure
- calcium sulphate
- preparing calcium
- elongated crystalline
- elongated
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/466—Conversion of one form of calcium sulfate to another
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/025—Calcium sulfates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/46—Non-siliceous fibres, e.g. from metal oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804338A FR2629069B1 (en) | 1988-03-24 | 1988-03-24 | PROCESS FOR THE PREPARATION OF CALCIUM SULPHATE WITH A LONGLINE CRYSTALLINE STRUCTURE HAVING A LENGTH AND A FACTOR OF MASTERED SHAPE |
FR8804338 | 1988-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3294089A true AU3294089A (en) | 1989-10-16 |
AU620857B2 AU620857B2 (en) | 1992-02-27 |
Family
ID=9364875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU32940/89A Ceased AU620857B2 (en) | 1988-03-24 | 1989-03-21 | Process for preparing calcium sulphate of elongated crystalline structure |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0334292A1 (en) |
JP (1) | JPH02504262A (en) |
AU (1) | AU620857B2 (en) |
BR (1) | BR8906477A (en) |
FI (1) | FI895621A0 (en) |
FR (1) | FR2629069B1 (en) |
WO (1) | WO1989009187A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2647433B1 (en) * | 1989-05-23 | 1991-10-31 | Lafarge Coppee Da | PROCESS FOR THE AQUEOUS PREPARATION OF PURIFIED CALCIUM SULFATE |
ES2023766A6 (en) * | 1990-10-09 | 1992-02-01 | Cargas Blancas Inorganicas Sa | Calcium sulphate di:hydrate paper filler prepn. |
ES2095184B1 (en) * | 1994-07-15 | 1997-09-01 | Compania General Yesera S A | PROCEDURE FOR THE OBTAINING OF A RADIAL LOAD ESPECIALLY FOR USE IN THE PAPER INDUSTRY, A LOAD PRODUCT FORMED BY CO-CRYSTALLIZATION OF ANHYDED CALCIUM SULPHATES AND HEMIHYDRATE AND A COMPOSITION USEFUL FOR THE PREPARATION OF SUCH LOAD. |
FI20070093A0 (en) * | 2007-02-02 | 2007-02-02 | Kemira Oyj | Plaster product and process for making the same |
FI20105128A (en) | 2010-02-10 | 2011-08-11 | Kemira Oyj | Process for making a pigment-fiber composite |
FI20105502L (en) | 2010-05-10 | 2011-11-11 | Kemira Oyj | Gypsum product |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1530451A (en) * | 1975-01-22 | 1978-11-01 | Bpb Industries Ltd | Production of gypsum from by-product calcium sulphate |
DE2729842B2 (en) * | 1977-07-01 | 1979-05-23 | Skw Trostberg Ag, 8223 Trostberg | Process for the production of inorganic fibers based on calcium sulfate |
JPS5499099A (en) * | 1978-01-20 | 1979-08-04 | Kuraray Co Ltd | Production of gypsum fine powder |
US4286995A (en) * | 1980-03-27 | 1981-09-01 | National Gypsum Company | Mica-free joint compound |
FI814197L (en) * | 1981-01-02 | 1982-07-03 | Enriqueta Galceran Vila | FOER FARING FOR FRAMSTAELLNING AND CHARGING AV CRYSTAL PRODUCTS |
US4801355A (en) * | 1987-01-16 | 1989-01-31 | United States Gypsum Company | Tabular acicular gypsum and method of filling paper |
-
1988
- 1988-03-24 FR FR8804338A patent/FR2629069B1/en not_active Expired - Lifetime
-
1989
- 1989-03-21 JP JP50342789A patent/JPH02504262A/en active Pending
- 1989-03-21 BR BR898906477A patent/BR8906477A/en not_active Application Discontinuation
- 1989-03-21 AU AU32940/89A patent/AU620857B2/en not_active Ceased
- 1989-03-21 WO PCT/EP1989/000300 patent/WO1989009187A1/en active Application Filing
- 1989-03-21 EP EP89105042A patent/EP0334292A1/en not_active Withdrawn
- 1989-11-24 FI FI895621A patent/FI895621A0/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FI895621A0 (en) | 1989-11-24 |
EP0334292A1 (en) | 1989-09-27 |
BR8906477A (en) | 1990-11-27 |
FR2629069B1 (en) | 1990-11-23 |
FR2629069A1 (en) | 1989-09-29 |
WO1989009187A1 (en) | 1989-10-05 |
AU620857B2 (en) | 1992-02-27 |
JPH02504262A (en) | 1990-12-06 |
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