DE402088C - Process for the production of phosphates soluble in two percent citric acid - Google Patents
Process for the production of phosphates soluble in two percent citric acidInfo
- Publication number
- DE402088C DE402088C DEC32649D DEC0032649D DE402088C DE 402088 C DE402088 C DE 402088C DE C32649 D DEC32649 D DE C32649D DE C0032649 D DEC0032649 D DE C0032649D DE 402088 C DE402088 C DE 402088C
- Authority
- DE
- Germany
- Prior art keywords
- percent
- citric acid
- production
- soluble
- percent citric
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B3/00—Fertilisers based essentially on di-calcium phosphate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Description
Verfahren zur Herstellung in zweiprozentiger Zitronensäure löslicher Phosphate. Es ist bekannt, daß die Aufnahme der Phosphorsäure durch die Pflanzen begünstigt. Es ist deshalb von großer Wichtigkeit, von vornherein magnesiumhaltige Phosphate auf den Acker zu geben.Method of preparation more soluble in two percent citric acid Phosphates. It is known that the absorption of phosphoric acid by the plants favored. It is therefore of great importance to use magnesium-containing foods from the outset To give phosphates to the field.
Die vorliegende Erfindung betrifft die Herstellung eines zur Düngung geeigneten dreibasischen Kalziummagnesiumphosphates, beispielsweise von der Zusammensetzung Ca Mg. (P04)2 # Mg Cl@ oder Cal Mg (P04)2 # 141g C12 durch Erhitzen einer Mischung von Dikalziumphosphat mit größeren '\lengen wäßriger Chlormagnesiumlösung. Es kann ein Dikalziumphosphat irgendwelcher Herkunft benutzt werden; Chlormagnesium wird zweckmäßig in Form von Endlauge der Kaliindustrie verwendet, welche im wesentlichen eine Lösung von Chlormagnesium im Wasser darstellt.The present invention relates to the production of a tribasic calcium magnesium phosphate suitable for fertilization, for example of the composition Ca Mg. (PO4) 2 # Mg Cl @ or Cal Mg (PO4) 2 # 141g C12 by heating a mixture of dicalcium phosphate with larger amounts of aqueous Magnesium chlorine solution. Dicalcium phosphate of any origin can be used; Magnesium chlorine is expediently used in the form of final liquor from the potash industry, which is essentially a solution of magnesium chlorine in water.
Das Erzeugnis ist unlöslich in Wasser, aber löslich iri zweiprozentiger Zitronensäure, also als Düngemittel geeignet.The product is insoluble in water, but soluble in two percent Citric acid, so suitable as a fertilizer.
Bei der Umsetzung wird Salzsäure frei. Die Umsetzung verläuft z. B.
gemäß folgender Gleichung z Ca H P04 .-I- Z Mg Cl" = Ca. Mg (P04)2 # Mg C1.2
-[- a H Cl. Bei höherer Temperatur und bei längerer Reaktionsdauer beteiligt sich
eine größere 1Tenge von lI-Cl= an der Umsetzung ,unter Verdrängung von Kalzium aus
seiner Phosphorsäurebindung, et«--a nach der Glelchlmg
a. 6 Ca H P04 -f- S Mg C12 = Ca Mg. (P04).2 . @'g C12 -f- Ca \I92 (P04) 2 -f- Mg3 (P04) 2 -I- 4 Ca C12 -E- 6 H CI. Immer aber entsteht unter, Salzsäureentwicklung ein tertiäres Phosphat, welches Magnesium in Phosphorsäurebindung und als angelagertes Chlorid enthält und «-elches in z«-eiprozentitzer Zitronensäure löslich ist. Ausführungsbeispiel. too Teile Dikalziumphosphat wurden mit 5oo Teilen Endlauge von 28,7 Prozent M9Cl2 bis zu einer Temperatur von 13o° bis 138° C 3 Stunden lang erhitzt. Das mit Wasser ausgewaschene Erzeugnis enthielt 38,12 Prozent PA, 11,77 Prozent Ca0, 27,37 Prozent Mg0, 7,46 Prozent Cl.. a. 6 Ca H PO4 -f- S Mg C12 = Ca Mg. (P04) .2. @ 'g C12 -f- Ca \ I92 (PO4) 2 -f- Mg3 (P04) 2 -I- 4 Ca C12 -E- 6 H CI. However, with the evolution of hydrochloric acid, a tertiary phosphate is always formed, which contains magnesium in phosphoric acid bond and as an attached chloride and which is soluble in two-percent citric acid. Embodiment. too parts of dicalcium phosphate were heated for 3 hours with 500 parts of final liquor of 28.7 percent M9Cl2 up to a temperature of 130 ° to 138 ° C. The product washed out with water contained 38.12 percent PA, 11.77 percent Ca0, 27.37 percent Mg0, 7.46 percent Cl ..
Der Reaktionsvorgang läßt sich annähernd durch folgende Gleichung darstellen: z6 CaHPO,+ 34M9C12 - 5 CaMg2(P09)2 # MgCI2 -f- 5 CaMg2(POg)2 + 31!193(P0,)2+ i6 CaC12 .-f- a6 HCl. Das Erzeugnis besteht also aus: 46,20 Prozent Ca M92 (P04)2 # MgC4, 34,40 Prozent Ca M92 (P04)2, 19,40 Prozent M93 (P04)2 und ist zu 98 Prozent in zweiprozentiger Zitronensäure löslich.The reaction process can be approximated by the following equation represent: z6 CaHPO, + 34M9C12 - 5 CaMg2 (P09) 2 # MgCl2 -f- 5 CaMg2 (POg) 2 + 31! 193 (P0,) 2+ i6 CaC12. -f- a6 HCl. The product therefore consists of: 46.20 percent Ca M92 (P04) 2 # MgC4, 34.40 percent Ca M92 (P04) 2, 19.40 percent M93 (P04) 2 and is 98 percent soluble in two percent citric acid.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC32649D DE402088C (en) | 1922-10-01 | 1922-10-01 | Process for the production of phosphates soluble in two percent citric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC32649D DE402088C (en) | 1922-10-01 | 1922-10-01 | Process for the production of phosphates soluble in two percent citric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE402088C true DE402088C (en) | 1924-09-12 |
Family
ID=7020435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC32649D Expired DE402088C (en) | 1922-10-01 | 1922-10-01 | Process for the production of phosphates soluble in two percent citric acid |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE402088C (en) |
-
1922
- 1922-10-01 DE DEC32649D patent/DE402088C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE402088C (en) | Process for the production of phosphates soluble in two percent citric acid | |
DE2024134A1 (en) | Process for the production of calcium fluoride and soluble phosphate from fluorine-containing rock phosphate | |
DE537898C (en) | Manufacture of fertilizers | |
DE560638C (en) | Process for the preparation of a water-soluble nutrient salt for animals | |
DE644048C (en) | Manufacture of processed cheese | |
DE507925C (en) | Manufacture of fertilizers | |
DE454419C (en) | Extraction of fertilizers | |
DE588140C (en) | Process for the production of phosphate fertilizers by digesting rock phosphates with hydrochloric acid | |
DE533857C (en) | Process for the preparation of fertilizers consisting essentially of alkali metal phosphates | |
DE574720C (en) | Production of phosphoric acid from monocalcium phosphate | |
DE602923C (en) | Production of monocalcium phosphate | |
DE555528C (en) | Manufacture of fluorine | |
DE551258C (en) | Process for the preparation of a fertilizer containing calcium and magnesium phosphate | |
US1842876A (en) | Art of fertilization | |
DE1265726B (en) | Process for the preparation of hydrated potassium magnesium phosphate | |
DE539705C (en) | Process for the production of potassium pentaborate | |
DE496289C (en) | Process for the preparation of a calcium phosphate carbonate mixed salt for nutritional purposes | |
DE684233C (en) | Process for the preparation of a substitute for glycerine | |
DE352782C (en) | Process for reducing acid consumption in the production of dibasic phosphoric acid lime | |
DE926008C (en) | Process for the production of phosphate fertilizers by thermal decomposition of rock phosphates with the addition of magnesium sulfate | |
DE749861C (en) | Process for making tasty food | |
DE747476C (en) | Process for the production of phosphate fertilizers | |
DE541035C (en) | Process for the preparation of molecular compounds of the alkali, alkaline earth and magnesium salts of 2-phenylquinoline-4-carboxylic acid with 1-phenyl-2,3-dimethyl-4-dimethylamino-5-pyrazolone or 1-phenyl-2,3-dimethyl -5-pyrazolone | |
CH637693A5 (en) | METHOD FOR THE PRODUCTION OF SOAP BARS OR RODS AND SOAP PRODUCED THEREOF. | |
DE361759C (en) | Process for the production of the secondary and tertiary phosphates of alkaline earths, magnesium, lead, copper and the metals of the Zergruppe |