DE29522413U1 - Encapsulated sodium percarbonate particles - with a sheath of sodium sulphate applied by spraying an aqueous solution onto a heated fluidised bed of the particles - Google Patents
Encapsulated sodium percarbonate particles - with a sheath of sodium sulphate applied by spraying an aqueous solution onto a heated fluidised bed of the particlesInfo
- Publication number
- DE29522413U1 DE29522413U1 DE29522413U DE29522413U DE29522413U1 DE 29522413 U1 DE29522413 U1 DE 29522413U1 DE 29522413 U DE29522413 U DE 29522413U DE 29522413 U DE29522413 U DE 29522413U DE 29522413 U1 DE29522413 U1 DE 29522413U1
- Authority
- DE
- Germany
- Prior art keywords
- particles
- sheath
- fluidised bed
- spraying
- sodium percarbonate
- 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.)
- Expired - Lifetime
Links
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title claims abstract 7
- 239000002245 particle Substances 0.000 title claims abstract 6
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 title claims 5
- 229940045872 sodium percarbonate Drugs 0.000 title claims 5
- 229910052938 sodium sulfate Inorganic materials 0.000 title claims 4
- 235000011152 sodium sulphate Nutrition 0.000 title claims 4
- 239000007864 aqueous solution Substances 0.000 title abstract 2
- 238000005507 spraying Methods 0.000 title abstract 2
- 238000001704 evaporation Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000011247 coating layer Substances 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 abstract 3
- 230000001464 adherent effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
- C01B15/10—Peroxyhydrates; Peroxyacids or salts thereof containing carbon
- C01B15/106—Stabilisation of the solid compounds, subsequent to the preparation or to the crystallisation, by additives or by coating
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3942—Inorganic per-compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Encapsulated Na percarbonate particles with a core essentially of Na percarbonate and an adherent sheath enveloping the particles consisting of one or more layers are claimed. The outermost layer of the sheath is essentially of optionally partially hydrated Na sulphate which has been formed by spraying an aqueous solution of Na sulphate onto a fluidised bed of Na percarbonate particles which may be uncoated or covered with a single or multilayer coating, and evaporating water by maintaining a temperature of 35-100[deg]C in the fluidised bed.
Description
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically
Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically
Claims (1)
- a) einem Kern aus im wesentlichen Natriumpercarbonat und
- b) einer diesen Kern umgebenden festhaftenden, einzigen
Hüllschicht, die aus Natriumsulfat besteht, das teilweise
hydratisiert sein kann,
dadurch erhältlich, dass
auf den nicht-umhüllten Kern aus einem durch Wirbelschicht- Sprühgranulation hergestelltem Natriumpercarbonat eine wässrige Natriumsulfatlösung in einer Wirbelschicht unter Aufrechterhaltung einer Wirbelschichttemperatur von 35 bis 100°C und Verdampfen von Wasser aufgesprüht wird, wobei die Hüllschicht 2 bis 10 Gew.-% Natriumsulfat, berechnet hydratfrei und bezogen auf Natriumpercarbonat ausmacht.
- a) a core of essentially sodium percarbonate and
- b) a firmly adhering, single coating layer surrounding this core, which consists of sodium sulfate, which can be partially hydrated,
obtainable in that
an aqueous sodium sulfate solution in a fluidized bed while maintaining a fluidized bed temperature of 35 to 100 ° C. and evaporation of water is sprayed onto the non-coated core from a sodium percarbonate produced by fluidized bed spray granulation, the coating layer being calculated to be 2 to 10% by weight of sodium sulfate hydrate-free and based on sodium percarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29522413U DE29522413U1 (en) | 1995-11-28 | 1995-11-28 | Encapsulated sodium percarbonate particles - with a sheath of sodium sulphate applied by spraying an aqueous solution onto a heated fluidised bed of the particles |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19544293A DE19544293C2 (en) | 1995-11-28 | 1995-11-28 | Encased sodium percarbonate particles and their use |
| DE29522413U DE29522413U1 (en) | 1995-11-28 | 1995-11-28 | Encapsulated sodium percarbonate particles - with a sheath of sodium sulphate applied by spraying an aqueous solution onto a heated fluidised bed of the particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29522413U1 true DE29522413U1 (en) | 2003-05-15 |
Family
ID=26020734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29522413U Expired - Lifetime DE29522413U1 (en) | 1995-11-28 | 1995-11-28 | Encapsulated sodium percarbonate particles - with a sheath of sodium sulphate applied by spraying an aqueous solution onto a heated fluidised bed of the particles |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29522413U1 (en) |
-
1995
- 1995-11-28 DE DE29522413U patent/DE29522413U1/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20030618 |
|
| R151 | Term of protection extended to 8 years |
Effective date: 20030624 |
|
| R152 | Term of protection extended to 10 years |
Effective date: 20031124 |
|
| R071 | Expiry of right |