DE879182C - Process for the preparation of thixotropic sulfur dispersions - Google Patents
Process for the preparation of thixotropic sulfur dispersionsInfo
- Publication number
- DE879182C DE879182C DEN1115D DEN0001115D DE879182C DE 879182 C DE879182 C DE 879182C DE N1115 D DEN1115 D DE N1115D DE N0001115 D DEN0001115 D DE N0001115D DE 879182 C DE879182 C DE 879182C
- Authority
- DE
- Germany
- Prior art keywords
- sulfur
- thixotropic
- dispersions
- preparation
- sulfur dispersions
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/044—Suspensions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Inorganic Chemistry (AREA)
- Birds (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Dermatology (AREA)
- Dispersion Chemistry (AREA)
- Detergent Compositions (AREA)
Description
Verfahren zur Herstellung thixotroper Schwefeldispersionen Bei der Herstellung wäßriger Schwefeldispersionen werden bekanntlich als Schutzkolloide Dextrin, Gerbstoffe, Klebstoffe, Ligninsulfonate u. dgl. verwendet. auch fügt man Elektrolyte, Glycerin, Harnstoff, Zuckermelasse usw. bei. Die so gewonnenen kolloidähnlichen Dispersionen des Schwefels neigen, wenn nicht sehr große Mengen an Zusatzstoffen Verwendung finden, zur Bildung eines Sediments, das mit der Zeit eine immer festere Beschaffenheit annimmt. Der Bodensatz läßt sidi schließlich nicht wieder durch einfache mechanische Behandlung wie Schütteln oder Rühren mit der darüberstehenden wäßrigen Phase vermischen. Durch Einlagerung unlöslicher Stoffe, wie Isaolin, Kreide, Talkum und Zinkoxyd, kann zwar erreicht werden, daß sich das Sedimentvolumen vergrößert, also eine Auflockerung des Bodensatzes stattfindet. Solche Zusätze aber verzögern allenfalls das Absetzen, machen den Schwefel jedoch nicht thixotrop. Auch ist die Anwesenheit größerer Mengen von Zusatzstoffen häufig störend, da z. B. die Wirksamkeit oder Anwendbarkeit des Schwefels beeinträchtigt wird.Process for the production of thixotropic sulfur dispersions In the Production of aqueous sulfur dispersions are known to be used as protective colloids Dextrin, tannins, adhesives, lignosulfonates and the like are used. also one adds Electrolytes, glycerine, urea, sugar molasses, etc. The colloid-like ones obtained in this way Dispersions of sulfur tend to contain additives, if not very large They are used to form a sediment that becomes more and more solid over time Quality assumes. After all, the sediment does not let itself through again with simple ones mechanical treatment such as shaking or stirring with the overlying aqueous Mix phase. By storing insoluble substances such as isaolin, chalk, talc and zinc oxide, it can be achieved that the sediment volume increases, So a loosening of the sediment takes place. But delay such additions at most, settling, does not make the sulfur thixotropic. Also is that The presence of large amounts of additives is often troublesome, since z. B. the effectiveness or the applicability of the sulfur is impaired.
Es wurde nun gefunden, daß wäßrige Schwefeldispersionen durch Beimischung von Aluminiumhydroxyd in Gelform thixotrop werden. Dieser Zusatz bewirlit überraschenderweise schon in geringer Menge, daß sich die Aufschlämmungen und Dispersionen des Schwefels unabhängig von der Teilchengröße auch nach langer Lagerzeit durch einfaches Rühren oder Schütteln sofort wieder verflüssigen. Dabei ist es gleichgültig, ob die-Beigabe des Aluminiumhydroxyds vor, während oder nach dem Zerkleinerungsprozeß erfolgt. Das Aluminiumhydroxyd kann in der Mischung selbst erzeugt oder als Gel beigegeben werden. It has now been found that aqueous sulfur dispersions can be admixed of aluminum hydroxide in gel form become thixotropic. Surprisingly, this addition has an effect even in a small amount that the slurries and dispersions of sulfur regardless of the particle size, even after a long storage time by simple stirring or shake immediately to liquefy again. It does not matter whether the addition of the aluminum hydroxide takes place before, during or after the comminution process. The aluminum hydroxide can be produced in the mixture itself or added as a gel will.
Die verfahrensgemäß gewonnenen Schwefel dispersionen sind in erster Linie für Zwecke der Schädlingsbekämpfung, Heilkunde und Körperpflege bestimmt, auch zusammen mit anderen unlöslichen Verbindungen, wie Kaolin, Kreide, Kalkarsenat, Kupfersulfid, Talkum, Zinkpalmitat usw. The sulfur dispersions obtained according to the process are primarily Line intended for pest control, medicine and personal care purposes, also together with other insoluble compounds such as kaolin, chalk, calcium arsenate, Copper sulfide, talc, zinc palmitate, etc.
Beispiel Ein Gemisch aus vorgemahlenem Schwefel, geringen Mengen Schutzkolloid und Wasser wird mit Natronlauge und Aluminiumsulfat in solchen Mengen versetzt, daß der Gehalt an Aluminiumhydroxyd 0,25%, der Gehalt an Schwefel 50% beträgt. Dann wird in der Kolloidmühle bis zur gewünschten Teilchengröße gemahlen. Je nach dem Zerkleinerungsgrad sowie Art und Menge der mitverwendeten Zusatzstoffe entsteht ein langsamer oder schneller erstarrendes Erzeugnis, das selbst nach jahrelangem Lagern stets sofort wieder flüssig wird, wenn man es schüttelt oder durchrührt. Example A mixture of pre-ground sulfur, small amounts Protective colloid and water are mixed with caustic soda and aluminum sulfate in such amounts added that the aluminum hydroxide content 0.25%, the sulfur content 50% amounts to. Then it is ground in the colloid mill to the desired particle size. Depending on the degree of shredding and the type and amount of additives used the result is a product that solidifies more slowly or more quickly, even after years Storage always becomes liquid again immediately if you shake it or stir it.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1115D DE879182C (en) | 1944-02-20 | 1944-02-20 | Process for the preparation of thixotropic sulfur dispersions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1115D DE879182C (en) | 1944-02-20 | 1944-02-20 | Process for the preparation of thixotropic sulfur dispersions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE879182C true DE879182C (en) | 1953-06-11 |
Family
ID=7337640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN1115D Expired DE879182C (en) | 1944-02-20 | 1944-02-20 | Process for the preparation of thixotropic sulfur dispersions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE879182C (en) |
-
1944
- 1944-02-20 DE DEN1115D patent/DE879182C/en not_active Expired
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