DE1019181B - Dry chemical - Google Patents
Dry chemicalInfo
- Publication number
- DE1019181B DE1019181B DED22944A DED0022944A DE1019181B DE 1019181 B DE1019181 B DE 1019181B DE D22944 A DED22944 A DE D22944A DE D0022944 A DED0022944 A DE D0022944A DE 1019181 B DE1019181 B DE 1019181B
- Authority
- DE
- Germany
- Prior art keywords
- formaldehyde
- dry chemical
- dry
- substances
- chemical according
- 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
Links
- 239000000126 substance Substances 0.000 title claims description 21
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 36
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000007859 condensation product Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 150000001299 aldehydes Chemical class 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 239000005871 repellent Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fireproofing Substances (AREA)
Description
Trockenlöschmittel Inder Patentanmeldung D 15110IV a/61 b ist vorgeschlagen worden, Trockenlöschmittel zu verwenden, die in feinverteilter fester Form Kondensationsprodukte von Formaldehyd oder Formaldehyd liefernden Stoffen mit Harnstoff oder seinen Derivaten und Phosphorsäure und/oder Borsäure, ihre Verbindungen oder ihre Additionsprodukte mit dem Formaldehydkondensationsprodukt enthalten. Diese Feuerlöschmittel sind vorteilhaft so zusammengesetzt, daß sie auf 1 Teil des Kondensationsproduktes 1 bis 4 Teile Phosphorsäure und/oder Borsäure oder ihrer Verbindungen oder-Additionsprodukte enthalten.Dry extinguishing agent In the patent application D 15110IV a / 61 b is proposed have been to use dry chemical, which are condensation products in finely divided solid form of formaldehyde or formaldehyde-producing substances with urea or its derivatives and phosphoric acid and / or boric acid, their compounds or their addition products with the formaldehyde condensation product. These fire extinguishing agents are beneficial so composed that they 1 part of the condensation product 1 to 4 parts Contain phosphoric acid and / or boric acid or their compounds or addition products.
Die vorgeschlagenen Trockenfeuerlöschmittel können neben den erwähnten Bestandteilen auch noch weitere Stoffe enthalten, z. B. krustenbildende anorganische Stoffe in feinverteiltem Zustande. Mit ausgezeichnetem Erfolg werden den Trockenlöschmitteln auch kohlehydrat- oder eiweißhaltige Stoffe zugesetzt, insbesondere Stärke, Cellulosemehl od. dgl. Die Mengen dieser Zusätze werden so gewählt, daß auf 1 Teil Phosphorsäure und/oder Borsäure oder ihrer Verbindungen oder Additionsprodukte weniger als 0,7 Teile kohlehydrat-und/oder eiweißhaltige Stoffe entfallen.The proposed dry fire extinguishing agents can be used in addition to those mentioned Components also contain other substances, e.g. B. Inorganic crust-forming Substances in a finely divided state. The dry chemical extinguishers have been very successful also added carbohydrate or protein-containing substances, especially starch, cellulose flour or the like. The amounts of these additives are chosen so that 1 part of phosphoric acid and / or boric acid or its compounds or addition products less than 0.7 Parts of carbohydrate and / or protein-containing substances are omitted.
Trockenlöschmittel der beschriebenen Art werden im Brandfalle in Pulverform verstäubt oder sonstwie aufgebracht. Durch die Hitze der Flamme werden sie in einen geschmolzenen Zustand übergeführt, haften hierbei auch auf senkrechten Flächen und bilden einen porösen kohlenstoffhaltigen festen Schaum, der ausgezeichnet gegen Hitze isoliert und den Luftsauerstoff fernhält. Gleichzeitig entwickeln sie unbrennbare Gase, welche die Ausbreitung des Brandes unterbinden.Dry extinguishing agents of the type described are in powder form in the event of a fire dusty or otherwise upset. The heat of the flame turns them into one melted state, adhere to vertical surfaces and form a porous carbonaceous solid foam that is excellent against Insulates heat and keeps the oxygen out of the air. At the same time they develop incombustible Gases that prevent the fire from spreading.
In manchen Fällen hat es sich gezeigt, daß die Lagerfähigkeit derartig zusammengesetzter Trockenlöschmittel nur begrenzt ist. Insbesondere bei großen Temperaturschwankungen tritt der Nachteil ein, daß die pulverförmigen Trockenlöschmittel zusammenbacken. Augenscheinlich spielt hierbei die Hygroskopizität der als Zusatzstoff verwendeten Stärke eine gewisse Rolle.In some cases it has been shown that the shelf life is such compound dry chemical is only limited. Especially with large temperature fluctuations the disadvantage occurs that the powdery dry extinguishing agent cakes together. Obviously, the hygroscopicity of the additive plays a role here Strength a certain role.
Weitere Untersuchungen haben nun gezeigt, daß als Zusatzstoff zu Trockenlöschmitteln der in der Patentanmeldung D 151101 IV a/6,1 b gekennzeichneten Art zur Trockene eingedampfte Sulfitzellstoffablauge in feinverteilter Form ausgezeichnet geeignet ist. Dieser Stoff ist als voller oder teilweiser Ersatz für z. B. Stärke gut geeignet. Gegenüber Stärke bringt er den Vorteil mit sich, daß selbst bei mehrfachem Temperaturwechsel im Bereich zwischen -i-80 und -20,° ein Zusammenbacken nicht stattfindet und die Rieselfähigkeit erhalten bleibt.Further studies have now shown that as an additive to dry extinguishing agents of the type identified in patent application D 151101 IV a / 6.1 b to dryness evaporated sulphite pulp waste liquor in finely divided form is excellently suited is. This substance is intended as a full or partial replacement for e.g. B. Strength well suited. Compared to strength, it has the advantage that even with repeated temperature changes in the range between -i-80 and -20, ° caking does not take place and the Flowability is retained.
Weitere Untersuchungen haben gezeigt, daß die besten Erfolge erzielt werden, wenn das Trockenlöschmittel auf 100 Teile Phosphorsäure oder Borsäure oder deren Verbindungen oder Additionsprodukten mit dem Formaldehydkondensationsprodukt 30 bis 70, Teile zur Trockene eingedampfte Sulfitzellstoffablauge enthält.Further research has shown that the best results are achieved if the dry chemical to 100 parts of phosphoric acid or boric acid or their compounds or addition products with the formaldehyde condensation product Contains 30 to 70 parts sulphite pulp waste liquor evaporated to dryness.
Es wurde ferner gefunden, daß man ebenfalls zu ausgezeichneten Trockenlöschmitteln gelangt, wenn man an Stelle der Kondensationsprodukte von Formaldehyd mit Harnstoff oder seinen Derivaten Kondensationsprodukte dieser letzteren Verbindungen mit anderen Aldehyden als Formaldehyd verwendet. Man kann beispielsweise den Formaldehyd ganz oder zum Teil durch Acetaldehyd oder vorzugsweise Acrolein ersetzen.It has also been found that excellent dry extinguishing agents are also obtained if one takes the place of the condensation products of formaldehyde with urea or its derivatives, condensation products of these latter compounds with others Aldehydes used as formaldehyde. For example, you can use the formaldehyde entirely or replace in part with acetaldehyde or, preferably, acrolein.
Zur weiteren Verbesserung der Rieselfähigkeit kann man den Trockenlöschmitteln gemäß der Erfindung noch weitere an sich bekannte, die Rieselfähigkeit verbessernde oder hydrophobierende Stoffe zusetzen. Hierzu gehören beispielsweise feinverteilte Oxyde, wie Siliciumdioxyd, das durch Umsetzung von Siliciumtetrachlorid bei hohen Temperaturen mit Wasserdampf in Form eines Aerosols entsteht und als Aerogel gewonnen wird, oder hydrophobierende Stoffe, wie Aluminiumstearat oder Magnesiumstearat. Die'-nachstehende Tabelle gibt beispielsweise die Zusammensetzung zweier erfindungsgemäßer Trockenlöschmittel wieder.Dry extinguishing agents can be used to further improve the flowability according to the invention still further known per se which improve the flowability or add hydrophobic substances. These include, for example, finely divided Oxides, such as silicon dioxide, produced by reacting silicon tetrachloride at high levels Temperatures with water vapor in the form of an aerosol are created and obtained as an airgel or hydrophobizing substances such as aluminum stearate or magnesium stearate. The'-below The table gives, for example, the composition of two dry extinguishing agents according to the invention again.
Monoammonphosphat .......... 455 455 - Tricalciumphosphat .10 15 -- Kondensationsprodukt von Form-. aldehyd, Formaldehyd liefernden Stoffen oder anderen Aldehyden mit Harnstoff oder seinen Derivaten .... ..::...... .. 87 90 Schwerspatmehl . . . . . . . . , . . . . . . ..-160 163 Getr. Sulfitablauge 223 220 _Barsäure ........ ..............- 15 -__ Kieselsäure, hochdispers 30 -Färbepigmente ..... ...... ...... 50 27 Trockenlöschmittel gemäß der Erfindung können für sämtliche Brandklassen, also gegen glutbildende Materialbrände, Oberflächenbrände, Gasbrände, Brände von Flüssigkeiten und gegen Elektrobrände verwendet werden.Monoammon phosphate .......... 455 455 - tricalcium phosphate .10 15 - condensation product of form-. Aldehyde, formaldehyde-producing substances or other aldehydes with urea or its derivatives .... .. :: ...... .. 87 90 Heavy spar meal. . . . . . . . ,. . . . . . ..- 160 163 Drink sulphite waste liquor 223 220 _Baric acid ........ ..............- 15 -__ Silica, highly dispersed 30 -colouring pigments ..... .. .... ...... 50 27 Dry extinguishing agents according to the invention can be used for all fire classes, that is, against embers forming material fires, surface fires, gas fires, fires involving liquids and against electrical fires.
Claims (5)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1072154A GB760510A (en) | 1953-05-22 | 1954-04-12 | Fire-extinguishers |
| FR1116119D FR1116119A (en) | 1953-05-22 | 1954-05-21 | Extinguishing agents and process for their production |
| DED22944A DE1019181B (en) | 1953-05-22 | 1956-05-12 | Dry chemical |
| FR71283D FR71283E (en) | 1953-05-22 | 1957-04-23 | Extinguishing agents and process for their production |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED15110A DE1001117B (en) | 1953-05-22 | 1953-05-22 | Dry extinguishers and process for their manufacture |
| DED22944A DE1019181B (en) | 1953-05-22 | 1956-05-12 | Dry chemical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1019181B true DE1019181B (en) | 1957-11-07 |
Family
ID=25970654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED22944A Pending DE1019181B (en) | 1953-05-22 | 1956-05-12 | Dry chemical |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1019181B (en) |
| FR (2) | FR1116119A (en) |
| GB (1) | GB760510A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1138641B (en) * | 1961-09-18 | 1962-10-25 | Total Foerstner & Co | Dry extinguishing powder containing monoammonium phosphate |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB909064A (en) * | 1959-04-10 | 1962-10-24 | Nu Swift Ltd | Improvements in or relating to fire extinguishing substances |
| WO2011041243A2 (en) * | 2009-09-30 | 2011-04-07 | Earthclean Corporation | Fire suppression biodegradable suspension forming compositions |
| US8961838B2 (en) | 2010-04-05 | 2015-02-24 | Earthclean Corporation | Non-aqueous fire suppressing liquid concentrate |
-
1954
- 1954-04-12 GB GB1072154A patent/GB760510A/en not_active Expired
- 1954-05-21 FR FR1116119D patent/FR1116119A/en not_active Expired
-
1956
- 1956-05-12 DE DED22944A patent/DE1019181B/en active Pending
-
1957
- 1957-04-23 FR FR71283D patent/FR71283E/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1138641B (en) * | 1961-09-18 | 1962-10-25 | Total Foerstner & Co | Dry extinguishing powder containing monoammonium phosphate |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1116119A (en) | 1956-05-04 |
| GB760510A (en) | 1956-10-31 |
| FR71283E (en) | 1959-11-02 |
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