DE307857C - - Google Patents
Info
- Publication number
- DE307857C DE307857C DENDAT307857D DE307857DA DE307857C DE 307857 C DE307857 C DE 307857C DE NDAT307857 D DENDAT307857 D DE NDAT307857D DE 307857D A DE307857D A DE 307857DA DE 307857 C DE307857 C DE 307857C
- Authority
- DE
- Germany
- Prior art keywords
- tannic acid
- tannic
- basic
- calcium
- sparingly soluble
- 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.)
- Active
Links
- 239000001263 FEMA 3042 Substances 0.000 claims description 7
- 229940033123 Tannic Acid Drugs 0.000 claims description 7
- LRBQNJMCXXYXIU-NRMVVENXSA-N Tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 7
- 235000015523 tannic acid Nutrition 0.000 claims description 7
- 229920002258 tannic acid Polymers 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- 150000007513 acids Chemical class 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000015450 Tilia cordata Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000006011 modification reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002253 Tannate Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/08—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals directly attached to carbocyclic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Glanulating (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Durch das Patent 306979 ist ein Verfahren zur Darstellung einer in verdünnten Säuren schwerlöslichen gerbsauren Kalkverbindung geschützt, welches darin besteht, daß man das in bekannter Weise darstellbare basisch gerbsaure Calcium nach dem Trocknen an der Luft für sich auf höhere Temperaturen erhitzt. In Abänderung dieses Verfahrens wurde nun gefunden, daß man die in verdünnten Säuren schwerlösliche gerbsaure Kalkverbindung in technisch einfacherer Weise dadurch gewinnen kann, daß man Gerbsäurelösungen mit der für die Bildung des basisch gerbsauren Calciums erforderlichen Menge Calciumhydroxyd so lange in der Hitze behandelt, bis die gewünschte Schwerlöslichkeit des basischen Calciumtannats in verdünnten Säuren erreicht ist.By the patent 306979 is a method for the preparation of an in dilute acids sparingly soluble tannic acid lime compound, which consists in the fact that the basic tannic acid calcium which can be prepared in a known manner after drying on the Air heated by itself to higher temperatures. Modification of this procedure has now been made found that the tannic lime compound, which is sparingly soluble in dilute acids, is found in technically easier way can win that you tannic acid solutions with the for the formation of the basic tannic acid calcium required the amount of calcium hydroxide so long Treated in the heat until the desired poor solubility of the basic calcium tannate is reached in dilute acids.
2,0 kg Calciumhydroxyd werden mit einer Lösung von 5 kg Gerbsäure in 25 1 Wasser 6 Stunden auf etwa 100 ° C erhitzt, bis eine Probe . des Reaktionsproduktes in verdünnter Säure schwerlöslich geworden ist. Dann wird abfiltriert, mit Wasser gewaschen, getrocknet, gepulvert und gesiebt.2.0 kg of calcium hydroxide are mixed with a solution of 5 kg of tannic acid in 25 l of water Heated 6 hours to about 100 ° C until a sample. of the reaction product in dilute Acid has become sparingly soluble. Then it is filtered off, washed with water, dried, powdered and sifted.
Das so erhaltene Produkt stimmt in seinen physikalischen und chemischen Eigenschaften mit der nach dem Beispiel des Hauptpatentes gewonnenen Verbindung überein.The product obtained in this way is correct in its physical and chemical properties with the compound obtained according to the example of the main patent.
Zeitdauer des Erhitzens und Wärmegrade in dem vorstehenden Beispiel können in weiten Grenzen abgeändert werden.Duration of heating and degrees of warmth in the above example can be wide Boundaries can be changed.
Die Angaben des Beispiels entsprechen einem technisch zweckmäßigen Verfahren.The information in the example corresponds to a technically expedient procedure.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE307857C true DE307857C (en) |
Family
ID=561160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT307857D Active DE307857C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE307857C (en) |
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0
- DE DENDAT307857D patent/DE307857C/de active Active
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