AT41720B - Process for the preparation of durable solutions of copper oxide ammonia. - Google Patents
Process for the preparation of durable solutions of copper oxide ammonia.Info
- Publication number
- AT41720B AT41720B AT41720DA AT41720B AT 41720 B AT41720 B AT 41720B AT 41720D A AT41720D A AT 41720DA AT 41720 B AT41720 B AT 41720B
- Authority
- AT
- Austria
- Prior art keywords
- copper oxide
- preparation
- solutions
- oxide ammonia
- durable
- Prior art date
Links
- DBNPDRYVYQWGFW-UHFFFAOYSA-N N.[Cu]=O Chemical compound N.[Cu]=O DBNPDRYVYQWGFW-UHFFFAOYSA-N 0.000 title description 6
- 238000002360 preparation method Methods 0.000 title description 4
- 238000000034 method Methods 0.000 title description 3
- 239000000126 substance Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001956 copper hydroxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung haltbarer Lösungen von Kupferoxydammoniak.
Die auf bekannte Weise bereiteten Lösungen von Kupferoxydammoniak besitzen eine sehr geringe Haltbarkeit, d. h. ihre Fähigkeit Cellulose zu lösen, nimmt sehr schnell ab. wodurch die Verwendung zur Fabrikation künstlicher Seide und zur Bereitung wasserdichter Gewebe stark beeinträchtigt wird. Diese Unbeständigkeit beruht darauf, dass schon bei ge- wöhnlicher Tmeperatur langsam, bei etwas erhöhter Temperatur rascher Kupferhydroxyd aus der Lösung abgeschieden wird.
Es wurde nun gefunden, dass sich die Haltbarkeit der Kupferoxydammoniaklösungen durch Zusatz organischer Stoffe erhöhen lässt. Als besonders geeignet haben sich die mehr-
EMI1.1
auch ohne jede Kühlung Lösungen von erheblich höherem Kupfergehalt als sonst, und zwar solche von I'roz. ent und darüber mit Leichtigkeit erzielen.
Zur Erzielung der Haltbarkeit genügt bereits ein Zusatz von 1 bis 2 Prozent der angeführten Substanzen. Kupferoxydulammoniak ist, wie festgestellt wurde, in den Lösungen nicht vorhanden.
PATENT-ANSPRÜCHE :
1. Verfahren zur Darstellung haltbarer Lösungen von Kupferoxydammoniak, dadurch gekennzeichnet, dass man die auf bekannte Weise bereiteten Lösungen von Kupferoxyd- ammoniak mit geringen Mengen organischer Stoffe, wie mehratomige Alkohole, Zuckerarten. Kohlehydrate odeur gummierten versetzt.
EMI1.2
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of durable solutions of copper oxide ammonia.
The solutions of copper oxide ammonia prepared in a known manner have a very short shelf life, i. H. their ability to dissolve cellulose decreases very quickly. which greatly affects its use for the manufacture of artificial silk and for the preparation of waterproof fabrics. This instability is based on the fact that copper hydroxide is slowly deposited from the solution at normal temperatures and more rapidly at a somewhat elevated temperature.
It has now been found that the shelf life of the copper oxide ammonia solutions can be increased by adding organic substances. The more-
EMI1.1
even without any cooling, solutions with a considerably higher copper content than usual, namely those from I'roz. ent and above with ease.
An addition of 1 to 2 percent of the substances listed is sufficient to achieve the shelf life. It was found that copper oxydulammonia is not present in the solutions.
PATENT CLAIMS:
1. A process for the preparation of durable solutions of copper oxide ammonia, characterized in that the solutions of copper oxide ammonia prepared in a known manner with small amounts of organic substances, such as polyatomic alcohols, types of sugar. Carbohydrates or gummed spiked.
EMI1.2
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE41720X | 1908-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT41720B true AT41720B (en) | 1910-04-11 |
Family
ID=5623849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT41720D AT41720B (en) | 1908-03-25 | 1909-02-20 | Process for the preparation of durable solutions of copper oxide ammonia. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT41720B (en) |
-
1909
- 1909-02-20 AT AT41720D patent/AT41720B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2829753A1 (en) | HARD SUBSTANCE | |
| DE2505946A1 (en) | HEAT-CURABLE POLYMERS AND PRE-POLYMERS, OBTAINED BY POLYCONDENSATION OF A PYRIDINE WITH AT LEAST THREE METHYL SUBSTITUENTS | |
| AT41720B (en) | Process for the preparation of durable solutions of copper oxide ammonia. | |
| CH342753A (en) | Process for the preparation of a stable solution of a curable condensation product from melamine, thiourea and formaldehyde | |
| DE386013C (en) | Process for the production of synthetic resins | |
| AT86138B (en) | Process for the preparation of catalysts of particular effectiveness. | |
| DE748840C (en) | Process for the production of solutions of superpolyamides | |
| AT33985B (en) | Process for producing an immersion bath for incandescent bodies. | |
| AT61182B (en) | Process for the preparation of ketones. | |
| AT27236B (en) | Cold frame window. | |
| DE364040C (en) | Process for the production of resinous condensation products from aryloxyacetic acids and formaldehyde | |
| DE130678C (en) | ||
| AT62012B (en) | Process for the production of pure, anhydrous, amorphous barium hydroxide. | |
| DE1231897B (en) | Process for the production of polyoxymethylene glycols | |
| AT67749B (en) | Method for the preparation of camphor from Borneoles. | |
| AT28300B (en) | Process for the production of briquettes, in particular from fuel with sulphite cellulose waste liquor. | |
| AT10691B (en) | Process for the preparation of indoxyl and its homologues. | |
| AT38543B (en) | Process for the preparation of leuco bodies from dyes of the gallocyanin series. | |
| DE1540166A1 (en) | Fixed or adjustable electrical resistance with an electrically resistive surface film and plating process for applying the film | |
| DE401779C (en) | Process to protect the inner walls of iron hollow bodies or vessels that are exposed to changing temperatures from rust | |
| AT57698B (en) | Process for the production of artificial threads and films as well as artificial horsehair using high-percentage cellulose solutions. | |
| DE553005C (en) | Process for the production of rayon | |
| AT32835B (en) | Chrome alloy electrical resistance. | |
| AT57715B (en) | Process for the production of artificial threads, ribbons, films, etc. from viscose solutions. | |
| AT88630B (en) | Process for the preparation of acetic acid. |