DE177511C - - Google Patents
Info
- Publication number
- DE177511C DE177511C DE1904177511D DE177511DA DE177511C DE 177511 C DE177511 C DE 177511C DE 1904177511 D DE1904177511 D DE 1904177511D DE 177511D A DE177511D A DE 177511DA DE 177511 C DE177511 C DE 177511C
- Authority
- DE
- Germany
- Prior art keywords
- boiler
- water
- see
- tanning acid
- scale
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 5
- PFTAWBLQPZVEMU-DZGCQCFKSA-N Catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 claims description 2
- 229940100626 Catechin Drugs 0.000 claims description 2
- 229950001002 Cianidanol Drugs 0.000 claims description 2
- 229930016253 catechin Natural products 0.000 claims description 2
- 235000005487 catechin Nutrition 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000002378 acidificating Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 240000005368 Areca catechu Species 0.000 description 1
- 235000006226 Areca catechu Nutrition 0.000 description 1
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical group O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003111 delayed Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSE 85 b. GRUPPECLASS 85 b. GROUP
AUGUST DETERLING in BERLIN.AUGUST DETERLING in BERLIN.
Es sind Antikesselsteinmittel der Gerbstoffgruppe bekannt (s. Fischer's Chemische Technologie des Wassers, 1878, S. 237 bis 239, und D. R. P. 77124), die die Kesselsteinbildung verhindern sollen. Doch enthalten diese Körper Karboxylgruppen, besitzen also Säurecharakter. Daher greifen diese Mittel das Metall der Kesselwände an.Anti-scale agents of the tannin group are known (see Fischer's Chemische Technologie des Wasser, 1878, pp. 237-239, and D. R. P. 77124), the scale formation should prevent. However, these bodies contain carboxyl groups, which means they have an acidic character. Therefore, these means take effect the metal of the boiler walls.
Die vorliegende Erfindung beruht im wesentliehen in der Anwendung von Tanningensäure (Katechin) (s. Gmelin's Handbuch der organischen Chemie, Bd. Ill, S. 303) als Kesselspeisezusatz. Diese enthält keine Karboxylgruppen (s. z. B. Berichte der deutschen Chemischen Gesellschaft, Bd. 35, S. 1867), ermangelt also des Säurecharakters. Sie ist ein Bestandteil des Katechu (s. Dr. H er twig, Handbuch der praktischen Arzneimittellehre für Thierärzte, Leipzig 1863, S. 114). Dem Speisewasser zugesetzt, bewirkt sie, daß sich der Kesselstein schlamm- und pulverförmig abscheidet, so daß er mit leichter Mühe aus dem abgeblasenen Dampfkessel durch Ausfegen entfernt werden kann, soweit er nicht überhaupt schon beim Ablassen mit dem Wasser und Dampf fortgegangen ist.The present invention resides essentially in the use of tanning acid (Catechin) (see Gmelin's Handbuch der Organic Chemistry, Vol. Ill, p. 303) as Boiler feed additive. This does not contain any carboxyl groups (see e.g. reports from the German Chemischen Gesellschaft, Vol. 35, p. 1867), therefore lacks the acidic character. she is a component of the catechu (see Dr. H er twig, handbook of practical medicine theory für Thierärzte, Leipzig 1863, p. 114). When added to the feed water, it causes itself the scale separates in the form of mud and powder, so that it can be removed with little effort the blown steam boiler can be removed by sweeping if it is not went away with the water and steam when it was drained.
Zur Ausführung des beschriebenen Verfahrens setzt man die Tanningensäure direkt dem Speisewasser zu, oder man tränkt Korkstücke mit einer Auflösung von Tanningensäure und tut diese in den Kessel, wie dies bei anderen solchen Mitteln schon bekannt ist. Hierbei erreicht man, daß sich die Tanningensäure nach und nach dem Wasser beimischt und so über längere Zeiträume hinaus, also auf größere Wassermassen, und damit intensiver wirkt, und daß das Korkschrot unter Durchbrechung einer etwaigen ölschicht auf dem Kesselwasser gleichzeitig (wie bekannt) den außerordentlich wichtigen Vorteil mit sich bringt, den gefährlichen Siedeverzug zu beseitigen.To carry out the process described, the tanning acid is used directly to the feed water, or cork pieces are soaked with a solution of tanning acid and puts them in the kettle, as is already known with other such remedies is. This ensures that the tanning acid is gradually mixed into the water and so over longer periods of time out, that is, to larger bodies of water, and thus more intense, and that the cork meal while breaking through any oil layer on the boiler water at the same time (as is known) brings with it the extremely important advantage, the dangerous To eliminate delayed boiling.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT37830D AT37830B (en) | 1904-01-22 | 1906-07-23 | Method of preventing the build-up of solid scale. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE177511C true DE177511C (en) |
Family
ID=441971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1904177511D Expired - Lifetime DE177511C (en) | 1904-01-22 | 1904-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE177511C (en) |
-
1904
- 1904-01-22 DE DE1904177511D patent/DE177511C/de not_active Expired - Lifetime
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