AT40839B - Cleaning process for glue and gelatin solutions. - Google Patents
Cleaning process for glue and gelatin solutions.Info
- Publication number
- AT40839B AT40839B AT40839DA AT40839B AT 40839 B AT40839 B AT 40839B AT 40839D A AT40839D A AT 40839DA AT 40839 B AT40839 B AT 40839B
- Authority
- AT
- Austria
- Prior art keywords
- glue
- cleaning process
- gelatin solutions
- solutions
- gelatin
- Prior art date
Links
- 239000003292 glue Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 108010010803 Gelatin Proteins 0.000 title claims description 3
- 229920000159 gelatin Polymers 0.000 title claims description 3
- 239000008273 gelatin Substances 0.000 title claims description 3
- 235000019322 gelatine Nutrition 0.000 title claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 title claims description 3
- 238000004140 cleaning Methods 0.000 title description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
<Desc/Clms Page number 1>
Reinigungsverfahren für Leim und Eeiatinetosungen.
In vielen Industrien, u. a. beim Gerben von Häuten oder bei der Bearbeitung von Leder, kann es vorkommen, dass man Lösungen, z. B. solche von Leim oder Gelatine benötigt, welche vollständig frei von Kalk sind, oder eine derartig geringe Menge davon enthalten, dass dieselbe praktisch ganz belanglos ist. Das den Gegenstand vorliegender Erfindung bildende Verfahren strebt die Erreichung dieses Zweckes an und ergibt gute Resultate.
Man führt die zu entkalkende Lösung in einen geeigneten Behälter ein und fügt eine genügende Menge Schwefelsäure eventuell im Überschusse hinzu, um die unlöslichen Kalkseifen zu zersetzen und den Kalk als Sulfat niederzuschlagen. Die genannte Lösung wird hierauf, wenn nötig, umgerührt und erwärmt, worauf man Bariumkarbonat ebenfalls in geringem Überschusse zusetzt und verrührt.
Schliesslich lässt man ruhen und hält die Masse, wenn nötig, stets auf einer Temperatur, die höher als jene der umgebenden Luft ist. Hiebei wird die im Überschuss befindliche Schwefelsäure in Form von Bariumsulfat niedergeschlagen und setzt sich mit dem vorher gebildeten Calciumsulfat und der gleichfalls niedergeschlagenen kleinen Menge von Bariumkarbonat am Boden des Behälters ab.
Die sich oberhalb des Niederschlages ansammelnde Lösung wird durch Decantation oder Filtration getrennt und enthält nunmehr nur Spuren von Kalk, welche für die gegedachten Zwecke unschädlich sind. Das Filtrat kann concentriert oder auch zur Gänze eingedampft und zum Zwecke der Erhöhung der Haltbarkeit mit geeigneten Substanzen versetzt werden. Die auf diese Weise gewonnenen Lösungen können neutral oder leicht alkalisch sein und finden in verschiedenen Industriezweigen Anwendung.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Cleaning process for glue and egg paste tins
In many industries, u. a. When tanning hides or working on leather, it can happen that solutions, e.g. B. those of glue or gelatin are required which are completely free of lime, or contain such a small amount of them that the same is practically completely irrelevant. The process which is the subject of the present invention aims to achieve this end and gives good results.
The solution to be decalcified is introduced into a suitable container and a sufficient amount of sulfuric acid, possibly in excess, is added to decompose the insoluble lime soaps and precipitate the lime as sulfate. The solution mentioned is then, if necessary, stirred and heated, whereupon a slight excess of barium carbonate is added and stirred.
Finally, let it rest and, if necessary, keep the mass at a temperature that is higher than that of the surrounding air. The excess sulfuric acid is precipitated in the form of barium sulfate and settles on the bottom of the container with the previously formed calcium sulfate and the likewise precipitated small amount of barium carbonate.
The solution that collects above the precipitate is separated by decantation or filtration and now contains only traces of lime, which are harmless for the intended purposes. The filtrate can be concentrated or evaporated in its entirety and suitable substances can be added to increase the shelf life. The solutions obtained in this way can be neutral or slightly alkaline and are used in various branches of industry.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT40839T | 1908-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT40839B true AT40839B (en) | 1910-02-10 |
Family
ID=3559430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT40839D AT40839B (en) | 1908-06-10 | 1908-06-10 | Cleaning process for glue and gelatin solutions. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT40839B (en) |
-
1908
- 1908-06-10 AT AT40839D patent/AT40839B/en active
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