DE359301C - Process for the production of calcium phosphide - Google Patents
Process for the production of calcium phosphideInfo
- Publication number
- DE359301C DE359301C DEC28830D DEC0028830D DE359301C DE 359301 C DE359301 C DE 359301C DE C28830 D DEC28830 D DE C28830D DE C0028830 D DEC0028830 D DE C0028830D DE 359301 C DE359301 C DE 359301C
- Authority
- DE
- Germany
- Prior art keywords
- production
- phosphorus
- calcium
- calcium phosphide
- phosphide
- 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
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/06—Hydrogen phosphides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Verfahren zur Herstellung von Kalziumphosphid. Zur Herstellung von Kalziumphosphid läßt man bekanntlich Phosphor bzw. dessen Dampf bei hohen Temperaturen auf Kalk einwirken oder man reduziert Kalziumphosphat durch leicht oxydierbare Metalle wie Magnesium oder Kalzium. Im ersten Falle erhält man ein Produkt; von dessen Phosphorgehalt höchstens die Hälfte durch Einwirkung von Wasser in Form von Phosphorwasserstoff gewinnbar ist; im anderen Fall wird das Produkt durch das anzuwendende Mietall für viele technische Zwecke zu teuer. Ähnliche Erzeugnisse erhält man durch Einwirkung von Phosphor auf erhitztes Karbid.Process for the production of calcium phosphide. For production of As is known, calcium phosphide is allowed to leave phosphorus or its vapor at high temperatures act on lime or you reduce calcium phosphate by easily oxidizable metals like magnesium or calcium. In the first case a product is obtained; of its phosphorus content at most half due to the action of water in the form of hydrogen phosphide is recoverable; in the other case, the product will be used by the rental company for many technical purposes too expensive. Similar products are obtained by exposure from phosphorus to heated carbide.
Versuche haben ergeben, daß man für die Herstellung von Phosphorkalzium zweckmäßiger von einem Gemisch von Kalziumkarbid mit Oxyden des Phosphors, wie P205 ausgeht, da man bei solchen Mischungen nur einen kleinen Teil der Mischung auf etwa 4.oo bis 5oo° zu erhitzen braucht, um die Reaktion einzuleiten, die sich dann unter Erglühen durch die ganze Masse fortsetzt. Beispiel. i ooo Teile zerkleinertes Karbid von etwa 8o Prozent CaC2-Gehalt werden mit 6oo Teilen Phosphorpentoxyd gemischt und in einen feuerfesten Tiegel gebracht. Durch Wärmezufuhr wird an einer Stelle die Reaktion eingeleitet, die sich dann unter Erglühen der ganzen Masse fortpflanzt.Experiments have shown that one for the production of phosphorus calcium more appropriate from a mixture of calcium carbide with oxides of phosphorus, such as P205 assumes, since with such mixtures only a small part of the mixture is approx 4.oo to 5oo ° needs to be heated to initiate the reaction, which is then below Glowing continues through the whole mass. Example. i ooo parts of crushed carbide of about 80 percent CaC2 content are mixed with 600 parts of phosphorus pentoxide and placed in a refractory crucible. Heat is applied in one place the reaction is initiated, which then propagates with the whole mass glowing.
Vorwiegend nach der Gleichung 3 CaC2 -+z05 - CasPz + 5 CO + C entsteht eine leicht gesinterte, poröse Masse, die sich durch starke Reaktionsfähigkeit gegenüber Wasser vor anderen Phosphorkalziumsorten auszeichnet.Mainly according to the equation 3 CaC2 - + z05 - CasPz + 5 CO + C is formed a slightly sintered, porous mass, which is opposed by strong reactivity Water distinguishes itself from other types of phosphorus calcium.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC28830D DE359301C (en) | 1920-02-29 | 1920-02-29 | Process for the production of calcium phosphide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC28830D DE359301C (en) | 1920-02-29 | 1920-02-29 | Process for the production of calcium phosphide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE359301C true DE359301C (en) | 1922-09-19 |
Family
ID=7018765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC28830D Expired DE359301C (en) | 1920-02-29 | 1920-02-29 | Process for the production of calcium phosphide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE359301C (en) |
-
1920
- 1920-02-29 DE DEC28830D patent/DE359301C/en not_active Expired
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