CA2032470A1 - Finely powdery magnesium hydroxide and a process for preparing thereof - Google Patents
Finely powdery magnesium hydroxide and a process for preparing thereofInfo
- Publication number
- CA2032470A1 CA2032470A1 CA2032470A CA2032470A CA2032470A1 CA 2032470 A1 CA2032470 A1 CA 2032470A1 CA 2032470 A CA2032470 A CA 2032470A CA 2032470 A CA2032470 A CA 2032470A CA 2032470 A1 CA2032470 A1 CA 2032470A1
- Authority
- CA
- Canada
- Prior art keywords
- ppm
- magnesium hydroxide
- magnesium
- water
- preparing
- 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
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 title abstract 6
- 239000000347 magnesium hydroxide Substances 0.000 title abstract 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 2
- 239000000395 magnesium oxide Substances 0.000 abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000012065 filter cake Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000003063 flame retardant Substances 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
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
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
- C01F5/06—Magnesia by thermal decomposition of magnesium compounds
- C01F5/10—Magnesia by thermal decomposition of magnesium compounds by thermal decomposition of magnesium chloride with water vapour
-
- 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
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
- C01F5/16—Magnesium hydroxide by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
-
- 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
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A finely powdery magnesium hydroxide especially suitable as flame-retardant filler for plastic compounds, in which the particles are provided optionally with a thin coating of a surfactant. The grain size of the magnesium hydroxide, measured by laser diffraction, is below 10 µm, the median value of the grain size being greater than 0.8 µm and 3 µm at the utmost. The contents of water-soluble ionic impurities, viz. Ca++, Na+, K+, SO4--, C1-, of the magnesium hydroxide are below the following limits (in parts by weight): Ca++ < 1000 ppm, Na+ < 20 ppm, K+ < 20 ppm, SO4-- < 1500 ppm, Cl- < 1000 ppm, and the contents of Mn, Cu and Ni are below the following limits (in parts by weight): MnO < 100 ppm, NiO < 100 ppm, CuO < 10 ppm.
The process for preparing the magnesium hydroxide starts from a magnesium oxide obtained by spray roasting from a magnesium chloride solution from which previously foreign matter has been removed, to which magnesium oxide water is added for hydration, whereupon the resulting magnesium hydroxide is removed by filtration and the filter cake material is subjected to a post-wash with water.
The process for preparing the magnesium hydroxide starts from a magnesium oxide obtained by spray roasting from a magnesium chloride solution from which previously foreign matter has been removed, to which magnesium oxide water is added for hydration, whereupon the resulting magnesium hydroxide is removed by filtration and the filter cake material is subjected to a post-wash with water.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1073/89A AT392774B (en) | 1989-05-05 | 1989-05-05 | FINE POWDERED MAGNESIUM HYDROXIDE AND METHOD FOR THE PRODUCTION THEREOF |
| ATA1073/89 | 1989-05-05 | ||
| PCT/AT1990/000043 WO1990013516A1 (en) | 1989-05-05 | 1990-05-02 | Finely powdered magnesium hydroxide and method for preparing it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2032470A1 true CA2032470A1 (en) | 1990-11-06 |
| CA2032470C CA2032470C (en) | 2000-09-05 |
Family
ID=3506013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002032470A Expired - Lifetime CA2032470C (en) | 1989-05-05 | 1990-05-02 | Finely powdery magnesium hydroxide and a process for preparing thereof |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP0427817B1 (en) |
| JP (1) | JPH03505863A (en) |
| KR (1) | KR920700162A (en) |
| CN (1) | CN1046878A (en) |
| AT (2) | AT392774B (en) |
| AU (1) | AU636887B2 (en) |
| BG (1) | BG93579A (en) |
| BR (1) | BR9006763A (en) |
| CA (1) | CA2032470C (en) |
| CZ (1) | CZ219790A3 (en) |
| DD (1) | DD294234A5 (en) |
| DE (1) | DE59004217D1 (en) |
| HU (1) | HUT56795A (en) |
| IL (1) | IL94273A (en) |
| SK (1) | SK219790A3 (en) |
| WO (1) | WO1990013516A1 (en) |
| ZA (1) | ZA903359B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020012202A1 (en) | 2018-07-12 | 2020-01-16 | Terna Mag S.A | Method of producing magnesium hydroxide |
| CN115893459A (en) * | 2022-12-20 | 2023-04-04 | 山东沃特斯德新材料科技有限公司 | Preparation method of multifunctional water-soluble nano magnesium hydroxide stock solution |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL112385A (en) * | 1994-01-21 | 1998-08-16 | Flamemag International Gie | Process for preparing a flame retardant magnesium hydroxide |
| JP3836649B2 (en) | 1999-11-22 | 2006-10-25 | 協和化学工業株式会社 | Semiconductor sealing resin composition and molded product thereof |
| KR20000049740A (en) * | 2000-04-26 | 2000-08-05 | 김철우 | Making process of magnesia powder by spray roasting method |
| WO2001083620A1 (en) * | 2000-05-02 | 2001-11-08 | Kyowa Chemical Industry Co., Ltd. | Resin composition for electric and electronic appliances |
| JP2002371198A (en) * | 2001-04-11 | 2002-12-26 | Sakai Chem Ind Co Ltd | Flame retardant resin composition blended with high purity zinc borate |
| CN100375778C (en) * | 2005-09-23 | 2008-03-19 | 清华大学 | Liquid amonia pressurized precipitation and hydrothermal modification process for preparing magnesium hydroxide fire retardant |
| JP4201792B2 (en) * | 2005-10-25 | 2008-12-24 | 神島化学工業株式会社 | Flame retardant, flame retardant resin composition and molded article |
| WO2007088707A1 (en) * | 2006-02-01 | 2007-08-09 | Maruo Calcium Co., Ltd. | Micropore forming agent for porous resin film and composition for porous resin film containing the agent |
| CN101437757A (en) * | 2006-03-31 | 2009-05-20 | 雅宝公司 | Magnesium hydroxide with improved compounding and viscosity performance |
| RU2008143217A (en) * | 2006-03-31 | 2010-05-10 | Альбемарл Корпорейшн (Us) | MAGNESIUM HYDROXIDE HAVING IMPROVED MIXTURE AND VISCOSITY CHARACTERISTICS |
| CN101679058B (en) * | 2007-03-30 | 2012-11-14 | 宇部材料工业株式会社 | Magnesium hydroxide powder and method for producing the same |
| JP5404621B2 (en) * | 2008-06-18 | 2014-02-05 | 丸尾カルシウム株式会社 | Magnesium hydroxide composition, process for producing the same, resin composition and molded article thereof |
| JP2020045349A (en) * | 2011-08-16 | 2020-03-26 | ピュラック バイオケム ビー． ブイ． | Recovery of carboxylic acids from magnesium salts thereof through precipitation using hydrochloric acid, useful for fermentation broth processing |
| WO2015051482A1 (en) * | 2013-10-11 | 2015-04-16 | 河北联合大学 | Method for manufacturing sheet monodisperse nano-magnesium hydroxide by using magnesite |
| CN104925838B (en) * | 2015-07-15 | 2016-12-28 | 后英集团海城市高新技术产品有限公司 | A kind of efficient oxidation magnesium prepares magnesium hydroxide technique |
| EP3575267A1 (en) * | 2018-06-01 | 2019-12-04 | Omya International AG | Development of surface-treated magnesium hydroxide-comprising material |
| CN110182832A (en) * | 2019-05-25 | 2019-08-30 | 邢台镁熙环保材料有限公司 | A kind of petroleum catalyst special magnesium oxide production technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT335973B (en) * | 1975-03-12 | 1977-04-12 | Oesterr Amerikan Magnesit | PROCESS FOR THE PREPARATION OF AQUATIC SOLUTIONS OF MAGNESIUM CHLORIDE |
| AT356630B (en) * | 1978-12-13 | 1980-05-12 | Ruthner Industrieanlagen Ag | METHOD FOR PRODUCING MAGNESIUM OXYD SINTER |
| DD205412A1 (en) * | 1982-07-02 | 1983-12-28 | Kali Veb K | PROCESS FOR CLEANING CHLORIDE-CONTAINING MAGNESIUM OXIDE |
| US4695445A (en) * | 1985-08-14 | 1987-09-22 | Asahi Glass Company Ltd. | Magnesium hydroxide and process for its production |
| AT388392B (en) * | 1987-06-26 | 1989-06-12 | Veitscher Magnesitwerke Ag | METHOD FOR THE PRODUCTION OF PURE MAGNESIUM OXIDE, IN PARTICULAR FOR THE PRODUCTION OF REFRACTORY-RESISTANT PRODUCTS |
-
1989
- 1989-05-05 AT AT1073/89A patent/AT392774B/en not_active IP Right Cessation
-
1990
- 1990-05-02 DE DE90906047T patent/DE59004217D1/en not_active Expired - Lifetime
- 1990-05-02 JP JP2506271A patent/JPH03505863A/en active Pending
- 1990-05-02 EP EP90906047A patent/EP0427817B1/en not_active Expired - Lifetime
- 1990-05-02 WO PCT/AT1990/000043 patent/WO1990013516A1/en active IP Right Grant
- 1990-05-02 AU AU55281/90A patent/AU636887B2/en not_active Withdrawn - After Issue
- 1990-05-02 AT AT90906047T patent/ATE100070T1/en not_active IP Right Cessation
- 1990-05-02 BR BR909006763A patent/BR9006763A/en not_active Application Discontinuation
- 1990-05-02 CA CA002032470A patent/CA2032470C/en not_active Expired - Lifetime
- 1990-05-02 HU HU903640A patent/HUT56795A/en unknown
- 1990-05-03 ZA ZA903359A patent/ZA903359B/en unknown
- 1990-05-03 SK SK2197-90A patent/SK219790A3/en not_active IP Right Cessation
- 1990-05-03 DD DD90340337A patent/DD294234A5/en not_active IP Right Cessation
- 1990-05-03 CZ CS902197A patent/CZ219790A3/en unknown
- 1990-05-03 IL IL9427390A patent/IL94273A/en active IP Right Review Request
- 1990-05-04 CN CN90102696A patent/CN1046878A/en active Pending
- 1990-12-07 KR KR1019900702575A patent/KR920700162A/en not_active Application Discontinuation
-
1991
- 1991-01-03 BG BG093579A patent/BG93579A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020012202A1 (en) | 2018-07-12 | 2020-01-16 | Terna Mag S.A | Method of producing magnesium hydroxide |
| CN115893459A (en) * | 2022-12-20 | 2023-04-04 | 山东沃特斯德新材料科技有限公司 | Preparation method of multifunctional water-soluble nano magnesium hydroxide stock solution |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5528190A (en) | 1990-11-29 |
| HUT56795A (en) | 1991-10-28 |
| WO1990013516A1 (en) | 1990-11-15 |
| CZ219790A3 (en) | 1998-04-15 |
| DE59004217D1 (en) | 1994-02-24 |
| IL94273A (en) | 1995-03-30 |
| IL94273A0 (en) | 1991-03-10 |
| ZA903359B (en) | 1991-02-27 |
| DD294234A5 (en) | 1991-09-26 |
| BG93579A (en) | 1993-12-24 |
| ATA107389A (en) | 1990-11-15 |
| SK278418B6 (en) | 1997-05-07 |
| EP0427817A1 (en) | 1991-05-22 |
| BR9006763A (en) | 1991-08-13 |
| CN1046878A (en) | 1990-11-14 |
| CA2032470C (en) | 2000-09-05 |
| AU636887B2 (en) | 1993-05-13 |
| JPH03505863A (en) | 1991-12-19 |
| SK219790A3 (en) | 1997-05-07 |
| KR920700162A (en) | 1992-02-19 |
| HU903640D0 (en) | 1991-07-29 |
| EP0427817B1 (en) | 1994-01-12 |
| AT392774B (en) | 1991-06-10 |
| ATE100070T1 (en) | 1994-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2032470A1 (en) | Finely powdery magnesium hydroxide and a process for preparing thereof | |
| CN106458633B (en) | Layered double-hydroxide for purified water | |
| JPS5645814A (en) | Hydroxyapatite, its ceramic material and its manufacture | |
| CA2078718A1 (en) | Detergent powders and process for preparing them | |
| US20220033269A1 (en) | Zeolite and preparation method therefor | |
| WO1996037436A1 (en) | Spheroidally agglomerated basic cobalt (ii) carbonate and spheroidally agglomerated cobalt (ii) hydroxide, process for their production and their use | |
| EP2628782A1 (en) | Deoxidizing agent for edible oils, and method for regeneration of used edible oil using same | |
| Cotton et al. | The crystal structure of La3Ru3O11: a new cubic KSbO3 derivative oxide with no metal-metal bonding | |
| EP0439620A4 (en) | Method of producing pulverized perovskite compound | |
| CA2216804A1 (en) | Process of producing lithium nickel oxide and nonaqueous secondary battery using the same | |
| US5152972A (en) | Process for producing molecular sieves and novel molecular sieve compositions | |
| Meier | Finely Powdered Magnesium Hydroxide and Method for Preparing It | |
| IE801925L (en) | Recovery of arsenic as zinc arsenate. | |
| AU1690688A (en) | Method for adjusting the amount of zinc powder in the removal of impurities from zinc sulphate solutions | |
| EP0248620A3 (en) | Preparation of bi-and poly-metal spinel precursors and product thereof | |
| JP2003187797A (en) | Positive pole active material for battery | |
| Nyman | Polyoxometalates and other metal-oxo clusters in nature | |
| CA1107935A (en) | Processing of breunnerite to recover magnesium compounds | |
| JPS55162405A (en) | Sodium hypochlorite purifying method | |
| JPS55107793A (en) | Removing method for arsenic, antimony, bismuth in sulfuric acid acidic solution | |
| JPS5669225A (en) | Preparation of active zinc white | |
| Paez | NON-CONVENTIONAL METHODS FOR OBTAINING ZnO POWDERS USEFUL AS RAW MATERIALS IN VARISTOR MANUFACTURE | |
| Okabe et al. | Preparing Particulate Ceramic Materials | |
| JPS6021939B2 (en) | oxide magnetic material | |
| IE880309L (en) | Aspartic acid crystals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |