AT43742B - Process for the production of tannin extract from sulphite cellulose waste liquors. - Google Patents
Process for the production of tannin extract from sulphite cellulose waste liquors.Info
- Publication number
- AT43742B AT43742B AT43742DA AT43742B AT 43742 B AT43742 B AT 43742B AT 43742D A AT43742D A AT 43742DA AT 43742 B AT43742 B AT 43742B
- Authority
- AT
- Austria
- Prior art keywords
- production
- waste liquors
- tannin extract
- cellulose waste
- sulphite cellulose
- Prior art date
Links
- 235000018553 tannin Nutrition 0.000 title description 3
- 229920001864 tannin Polymers 0.000 title description 3
- 239000001648 tannin Substances 0.000 title description 3
- 239000002699 waste material Substances 0.000 title description 3
- 229920002678 cellulose Polymers 0.000 title description 2
- 239000001913 cellulose Substances 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000000034 method Methods 0.000 title description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000037368 penetrate the skin Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Compounds Of Unknown Constitution (AREA)
- Paper (AREA)
- Extraction Or Liquid Replacement (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Gerbstoffextrakt aus Sulfitzelluloseablaugen.
Die von mir ausgeführten, eingehenden Versuche haben orgeben, dass die gerben (le Wirkung, welche die genannten Ablangen auszuüben vermögen. den Sulfonsäureverbindungen
EMI1.1
Temperaturen unter Druck auf das Holz bilden. Diese Sulfonsäuren finden sich in den Ablaugen als Kalksalze gelöst vor.
neben Schwefeligsäureestern von Kohienhydratpn und Pentosanen, sowie noch Resten von unverändertem Kalzinmbisulfat.
EMI1.2
werden, so besteht die Aufgabe hauptsächlich. darin, die Verbindungen der schwerfligen Säure, weiche neben den Ligninsulfonsänren vorhanden sind, vollständig unter Austreibung der schwefligen Säure zu zurlogeu und ferner die Sulfonsäuren teils im freien Zustande, teils in Form solcher Salze, die auf die Gerbung keinen schädlichen Einfluss auszuuben vermögen zu überführen.
EMI1.3
vorhanden sind, hängt die schwellende Wirkung des Extraktes und seine Fähigkeit die Haut mit grösserer oder geringerer Geschwindikgiet zu durchdringen ab und man hat es daher vollständig in der Hand,
nach diesen Richtungen bin. die Eigenschaften des herzustellenden Extraktes in beliebiger Weise zu regulieren.
Gestützt auf diese Tatsachen wird man daher bei der Gewinnung von Gerbstoff-
EMI1.4
gebenden Analyse der Laugen zu denselben einmal soviel Schwefelsäure oder einer anderen, schwerlöslichen Kalksalze liefernde Säure zusetzt. als zum vollständigen Fieimachen der schwefeligen Säure, die in Form von Estern und anorganischen Salzen vorhanden ist. sowie
EMI1.5
Erkalten eine feste, leicht zerreibliche Masse bilden, die sich im kalten Wasser schon zu einer völlig klaren, gelbbraun gefärbten Flüssigkeit auflöst.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of tannin extract from sulphite cellulose waste liquors.
The detailed experiments carried out by me have shown that the tanning effect which the above-mentioned lengths are able to exert is the sulfonic acid compounds
EMI1.1
Form temperatures under pressure on the wood. These sulfonic acids are found in dissolved form in the waste liquors as calcium salts.
in addition to sulphurous esters of carbohydrates and pentosans, as well as residues of unchanged calcine bisulphate.
EMI1.2
the task is mainly. in that the compounds of the heavy acid, which are present in addition to the lignosulfonic acid, are completely removed with the expulsion of the sulfurous acid and furthermore the sulfonic acids partly in the free state, partly in the form of salts which are not able to exert any harmful influence on the tanning.
EMI1.3
are present, the swelling effect of the extract and its ability to penetrate the skin with greater or lesser speed depends on and you have it completely in your hand,
in these directions. to regulate the properties of the extract to be produced in any way.
Based on these facts, one will therefore use the extraction of tannin
EMI1.4
To give an analysis of the alkaline solutions, once as much sulfuric acid or another acid which provides poorly soluble calcium salts is added. than to completely remove the sulphurous acid which is present in the form of esters and inorganic salts. as
EMI1.5
When they cool, they form a solid, easily friable mass that dissolves in the cold water to a completely clear, yellow-brown colored liquid.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT43742T | 1909-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT43742B true AT43742B (en) | 1910-08-25 |
Family
ID=3563146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT43742D AT43742B (en) | 1909-04-19 | 1909-04-19 | Process for the production of tannin extract from sulphite cellulose waste liquors. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT43742B (en) |
-
1909
- 1909-04-19 AT AT43742D patent/AT43742B/en active
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