DE214244C - - Google Patents
Info
- Publication number
- DE214244C DE214244C DENDAT214244D DE214244DA DE214244C DE 214244 C DE214244 C DE 214244C DE NDAT214244 D DENDAT214244 D DE NDAT214244D DE 214244D A DE214244D A DE 214244DA DE 214244 C DE214244 C DE 214244C
- Authority
- DE
- Germany
- Prior art keywords
- starch
- acid
- soluble
- temperatures
- ioo
- 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
- 229920002472 Starch Polymers 0.000 claims description 10
- 239000008107 starch Substances 0.000 claims description 10
- 235000019698 starch Nutrition 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 4
- OHORFAFFMDIQRR-UHFFFAOYSA-P Hexafluorosilicic acid Chemical compound [H+].[H+].F[Si-2](F)(F)(F)(F)F OHORFAFFMDIQRR-UHFFFAOYSA-P 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920001592 potato starch Polymers 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N D-Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NFACJZMKEDPNKN-UHFFFAOYSA-N trichlorfon Chemical compound COP(=O)(OC)C(O)C(Cl)(Cl)Cl NFACJZMKEDPNKN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
Description
&J i/Rö
J . May
& J i / Rö
J.
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
-JVl 214244-KLASSE 89 #. GRUPPE-JVl 214244-CLASS 89 #. GROUP
Verfahren zur Darstellung löslicher Stärke.Process for preparing soluble starch.
Es ist bekannt, daß man Stärke durch Einwirkung von Mineralsäuren, wie Salpetersäure
oder Salzsäure, in eine lösliche Form überführen kann. Zu diesem Zweck muß die Behandlung
mit der Säure bei Temperaturen von ioo bis 120 ° vorgenommen werden (siehe
Die Fabrikation der Kartoffelstärke von Prof. Dr. O. Saare [1897], S. 21). Es ist jedoch
nicht möglich, nach diesem Verfahren Produkte zu erhalten, welche allen Anforderungen
der Praxis entsprechen, da hierbei die gleichzeitige Bildung größerer Mengen Dextrin und
Traubenzucker sich nicht vermeiden läßt.
Von Anthon (s. L. v. Wagner, DieIt is known that starch can be converted into a soluble form by the action of mineral acids such as nitric acid or hydrochloric acid. For this purpose, the treatment with the acid must be carried out at temperatures of 100 to 120 ° (see The manufacture of potato starch by Prof. Dr. O. Saare [1897], p. 21). However, it is not possible by this process to obtain products which meet all practical requirements, since the simultaneous formation of large amounts of dextrin and glucose cannot be avoided.
By Anthon (see L. v. Wagner, The
15. Stärkefabrikation, 2. Aufl. 1886, S. 48, Abs. 1 und Fußnote) sind Versuche über das Verhalten der Stärke zu größeren Mengen Kieselfluorwasserstoffsäure bei Temperaturen bis 1070 angestellt worden. Hierbei wird, wie der Autor festgestellt hat, die Stärke auch noch nach elfstündigem Erhitzen mit dieser Säure kaum verändert. Das erhaltene Produkt gibt mit der 16 fachen Menge Wasser zum Sieden erhitzt keine dünnflüssige Lösung.15. Strength fabrication, 2nd ed., 1886, p 48, para. 1 and footnote) have made experiments on the behavior of the starch to larger amounts pebble hydrofluoric acid at temperatures up to 107 0th As the author has established, the strength is hardly changed even after 11 hours of heating with this acid. The product obtained does not boil a thin liquid solution when heated with 16 times the amount of water.
Es wurde nun die überraschende Beobachtung gemacht, daß man in sehr einfacher Weise zu einer löslichen Stärke von sehr guten Eigenschaften dadurch gelangen kann, daß man auf Stärke Kieselfluorwasserstoffsäure in geringer Menge bei Temperaturen unterhalb ioo0 einwirken läßt. Das so gewonnene neue Produkt gleicht in seinem Aussehen der unveränderten Stärke und löst sich in heißem Wasser vollkommen zu einer klaren Flüssigkeit auf. Die neue Stärke hat sich besonders wertvoll als Appreturmittel erwiesen. Sie eignet sich hierzu in vorzüglicher Weise, da man mit ihr sehr starke Lösungen herstellen kann, die noch vollkommen dünnflüssig sind und daher bei der Appretur das Gewebe sehr leicht durchdringen.It has now been made that one can arrive in a very simple manner to a soluble starch having very good properties in that is allowed to act on starch fluosilicic acid in a small amount at temperatures below 0 ioo the surprising observation. The appearance of the new product obtained in this way resembles the unchanged starch and dissolves completely in hot water to a clear liquid. The new starch has proven to be particularly valuable as a finishing agent. It is ideally suited for this purpose, as it can be used to produce very strong solutions that are still completely thin and therefore penetrate the fabric very easily during the finish.
Zur Darstellung des neuen Produktes verfährt man z. B. in der Weise, daß man ein inniges Gemisch von 100 kg Kartoffelmehl mit ι kg Kieselfluorwasserstoffsäure (spez. Gew. 1,3) bei 70 bis 80 ° trocknet, bis eine Probe in heißem Wasser löslich ist. Die Reaktion ist nach einigen Stunden beendet.To display the new product one proceeds z. B. in such a way that one Intimate mixture of 100 kg of potato flour with ι kg of hydrofluoric acid (specific weight 1.3) Dries at 70 to 80 ° until a sample is soluble in hot water. The reaction is finished after a few hours.
Natürlich können auch andere Stärkesorten verwendet werden.Of course, other types of starch can also be used.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE214244C true DE214244C (en) |
Family
ID=475834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT214244D Active DE214244C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE214244C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1146820B (en) * | 1959-06-17 | 1963-04-04 | Pennsalt Chemicals Corp | Ironing starch in the form of a ready-to-use dry starch |
-
0
- DE DENDAT214244D patent/DE214244C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1146820B (en) * | 1959-06-17 | 1963-04-04 | Pennsalt Chemicals Corp | Ironing starch in the form of a ready-to-use dry starch |
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