DE381422C - Process for the production of vulcanization sulfur - Google Patents
Process for the production of vulcanization sulfurInfo
- Publication number
- DE381422C DE381422C DEK84028D DEK0084028D DE381422C DE 381422 C DE381422 C DE 381422C DE K84028 D DEK84028 D DE K84028D DE K0084028 D DEK0084028 D DE K0084028D DE 381422 C DE381422 C DE 381422C
- Authority
- DE
- Germany
- Prior art keywords
- sulfur
- production
- air
- vulcanization
- naphthalene
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/10—Finely divided sulfur, e.g. sublimed sulfur, flowers of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Vulkanisationsschwefel. Bekanntlich nimmt geschmolzenes Naphthalin - ähnlich wie Terpentinöl - große Mengen von Sauerstoff aus der Luft auf. Ferner ist bekannt, daß abgepreßtes Rohnaphthalin noch beträchtliche Mengen von vulkanisationsbeschleunigenden Phenolen enthält. Beim Verschmelzen von Schwefel mit abgepreßtem Rohnaphthalin wird aber der Schmelzpunkt derartig herabgedrückt, daß sich ein solches Erzeugnis nicht genügend fein vermahlen läßt. Die Schwierigkeiten lassen sich aber folgendermaßen leicht beseitigen: Man schmilzt gleiche Teile von Stückenschwefel und abgepreßtem Rohnaphthalin unter Luftzutritt, am besten unter Einleiten von Luft zum Zwecke des Durchrührens der Mischung zusammen, trägt dann in die Schmelze unter Rühren so bis 30 Prozent basisch-kohlensaureMagnesia oder stattdessen Kalkhydrat ein, bringt dann die Masse durch Ausgießen in dünnen Strahlen in kaltes Wasser zum Erstarren in Form dünner Fäden, schleudert die anhaftende Feuchtigkeit ab und mahlt dann, nötigenfalls unter Zusatz einer weiteren mäßigen Menge von kohlensaurer Magnesia oder Kalkhydrat zum Zwecke des Einstäubens während des Mahlens, zu einem möglichst feinen Pulver. Dieses Pulver kann mittels Verstäubung im Luftstrom in bekannter Weise auf verschiedene Feinheitsgrade gesichtet werden, läßt sich aber auch durch Müllergaze absieben, wobei für Ableitung der Reibungselektrizität zu sorgen ist.Process for the production of vulcanization sulfur. It is well known that molten naphthalene - similar to turpentine oil - absorbs large amounts of oxygen from the air. It is also known that pressed crude naphthalene still contains considerable amounts of vulcanization-accelerating phenols. When sulfur is fused with the crude naphthalene that has been pressed out, the melting point is depressed to such an extent that such a product cannot be ground sufficiently finely. However, the difficulties can be easily eliminated as follows: Equal parts of lump sulfur and pressed crude naphthalene are melted with the admission of air, ideally with the introduction of air for the purpose of stirring the mixture, then add up to 30 percent basic carbonic acid magnesia or into the melt with stirring Instead, add hydrated lime, then make the mass solidify in the form of thin threads by pouring it in thin rays into cold water, throw off the adhering moisture and then grind, if necessary with the addition of a further moderate amount of carbonate magnesia or hydrated lime for the purpose of dusting during the Grinding to a powder as fine as possible. This powder can be sifted to different degrees of fineness in a known manner by means of atomization in the air stream, but it can also be sieved through Müller gauze, whereby the static electricity must be dissipated.
Das neue Produkt gestattet eine Verkürzung der Vulkanisationsdauer. Die Vulkanisate besitzen besseren Nerv und halten sich länger frisch, namentlich bei der beschleunigten Alterungsprüfung im durchlüfteten Trokkenschrank.The new product allows the vulcanization time to be shortened. The vulcanizates have a better nerve and stay fresh longer, especially in the accelerated aging test in a ventilated drying cabinet.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK84028D DE381422C (en) | 1922-11-19 | 1922-11-19 | Process for the production of vulcanization sulfur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK84028D DE381422C (en) | 1922-11-19 | 1922-11-19 | Process for the production of vulcanization sulfur |
Publications (1)
Publication Number | Publication Date |
---|---|
DE381422C true DE381422C (en) | 1923-09-20 |
Family
ID=7234954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK84028D Expired DE381422C (en) | 1922-11-19 | 1922-11-19 | Process for the production of vulcanization sulfur |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE381422C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970194C (en) * | 1954-05-11 | 1958-08-28 | Thyssensche Gas Und Wasserwerk | Process for the production of sulfur from sulfur-containing gas cleaning mass and from other elemental sulfur-containing substances |
-
1922
- 1922-11-19 DE DEK84028D patent/DE381422C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970194C (en) * | 1954-05-11 | 1958-08-28 | Thyssensche Gas Und Wasserwerk | Process for the production of sulfur from sulfur-containing gas cleaning mass and from other elemental sulfur-containing substances |
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