FR2026878A1 - Producing ca3 (po4) 2 ca na po4 - Google Patents
Producing ca3 (po4) 2 ca na po4Info
- Publication number
- FR2026878A1 FR2026878A1 FR6943811A FR6943811A FR2026878A1 FR 2026878 A1 FR2026878 A1 FR 2026878A1 FR 6943811 A FR6943811 A FR 6943811A FR 6943811 A FR6943811 A FR 6943811A FR 2026878 A1 FR2026878 A1 FR 2026878A1
- Authority
- FR
- France
- Prior art keywords
- mixt
- degrees
- product
- producing
- fertiliser
- 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.)
- Withdrawn
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
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Fertilizers (AREA)
- Fodder In General (AREA)
Abstract
poor in F and highly soluble in citric acid is produced by calcination of a mixt. of (A) crude phosphate, (b) phosphoric acid, and (C) a cpd. forming Na2O at temps. 1200 degrees C in the presence of H2O vapour, in which (A) contains 2% wt. SiO2; (A), (B), and (C) are granulated together so that in the product the molar ratio will be 8:1:3, the granules are dried and calcined at 1350-1550 degrees C. The mixt. may contain 5-25% (C). (C) may be Na2CO3 and/or NaOH in soln. The product is used as a fertiliser and in animal feeds.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681816660 DE1816660C3 (en) | 1968-12-23 | Process for the production of a low-fluorine calcined phosphate |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2026878A1 true FR2026878A1 (en) | 1970-09-25 |
Family
ID=5717260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6943811A Withdrawn FR2026878A1 (en) | 1968-12-23 | 1969-12-17 | Producing ca3 (po4) 2 ca na po4 |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE743554A (en) |
DK (1) | DK132111C (en) |
ES (1) | ES374805A1 (en) |
FI (1) | FI52839C (en) |
FR (1) | FR2026878A1 (en) |
NL (1) | NL159644C (en) |
NO (1) | NO130638C (en) |
PL (1) | PL93573B1 (en) |
SE (1) | SE357188B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2382416A1 (en) * | 1977-03-02 | 1978-09-29 | Kali Chemie Ag | PROCESS FOR THE PRODUCTION OF PHOSPHATE FERTILIZERS |
FR2446254A1 (en) * | 1979-01-15 | 1980-08-08 | Ugine Kuhlmann | DEFLUORED NATURAL CALCIUM PHOSPHATE FOR ANIMAL FEED |
-
1969
- 1969-12-17 FR FR6943811A patent/FR2026878A1/en not_active Withdrawn
- 1969-12-17 FI FI693671A patent/FI52839C/en active
- 1969-12-18 NL NL6919008.A patent/NL159644C/en not_active IP Right Cessation
- 1969-12-22 ES ES374805A patent/ES374805A1/en not_active Expired
- 1969-12-22 PL PL1969137752A patent/PL93573B1/pl unknown
- 1969-12-22 NO NO695068A patent/NO130638C/no unknown
- 1969-12-22 BE BE743554A patent/BE743554A/fr unknown
- 1969-12-22 DK DK678869A patent/DK132111C/en active
- 1969-12-22 SE SE17724/69A patent/SE357188B/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2382416A1 (en) * | 1977-03-02 | 1978-09-29 | Kali Chemie Ag | PROCESS FOR THE PRODUCTION OF PHOSPHATE FERTILIZERS |
FR2446254A1 (en) * | 1979-01-15 | 1980-08-08 | Ugine Kuhlmann | DEFLUORED NATURAL CALCIUM PHOSPHATE FOR ANIMAL FEED |
Also Published As
Publication number | Publication date |
---|---|
NO130638C (en) | 1975-01-15 |
NL6919008A (en) | 1970-06-25 |
SE357188B (en) | 1973-06-18 |
DE1816660B2 (en) | 1972-12-28 |
BE743554A (en) | 1970-02-27 |
NL159644C (en) | 1980-03-17 |
NL159644B (en) | 1979-03-15 |
PL93573B1 (en) | 1977-06-30 |
ES374805A1 (en) | 1972-01-16 |
FI52839C (en) | 1977-12-12 |
DK132111B (en) | 1975-10-27 |
FI52839B (en) | 1977-08-31 |
NO130638B (en) | 1974-10-07 |
DE1816660A1 (en) | 1970-09-24 |
DK132111C (en) | 1976-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1191635A (en) | Improvements in the manufacture of Orthophosphates | |
ES367047A1 (en) | Process for the manufacture of condensed aluminum phosphates | |
FR2026878A1 (en) | Producing ca3 (po4) 2 ca na po4 | |
ES407749A1 (en) | Phosphatic materials | |
GB1159660A (en) | A Method of Producing Calcined Alkali-Phosphate Fertilisers | |
CA945339A (en) | Wet process manufacture of phosphoric acid and calcium sulphate | |
GB1483739A (en) | Manufacture of solid ammonium phosphate | |
GB1397729A (en) | Phosphate catalysts used in adiponitrile manufacture | |
GB1211537A (en) | Improvements in or relating to the production of fertilisers comprising urea phosphate | |
SE8600884L (en) | HOMOGENE MIXTURES OF POLYPHOSPHATES | |
US3367737A (en) | Trimetaphosphate processes | |
GB1019331A (en) | Production of sodium trimetaphosphate and mixtures containing the same | |
ES359601A1 (en) | Production of feed grade dicalcium phosphate from mixtures of phosphoric and nitric acids | |
GB1234405A (en) | ||
GB1187664A (en) | Process for the Production of Plaster | |
GB1466953A (en) | Method of producing food grade calcium phosphates | |
FR2186956A5 (en) | Feed supplement calcium phosphate - free flowing and stable - made by 2-stage addn of acid to calcium oxide or hydroxide | |
GB692252A (en) | Improvements in or relating to the production of a compound fertiliser from an acid solution containing fluorine, calcium and phosphoric acid | |
GB687529A (en) | Process for the production of calcium magnesium phosphates which can be used as fertilizers | |
GB785016A (en) | Improvements in or relating to method of producing agglomerate calcium phosphate mixtures | |
GB953598A (en) | Process of treating phosphate rock | |
GB1218997A (en) | Production of ammonium phosphates | |
IL39361A0 (en) | The production of a calcined alkali metal phosphate fertilizer | |
FR2158055A1 (en) | Dicalcium phosphate prodn - from calcium oxide hydroxide or carbonate and phosphoric acid,in an edible form | |
GB639783A (en) | Improved process for the production of fertilizers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |