FR2026878A1 - Producing ca3 (po4) 2 ca na po4 - Google Patents

Producing ca3 (po4) 2 ca na po4

Info

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Withdrawn
Application number
FR6943811A
Other languages
French (fr)
Inventor
Dr Ulrich Hauschild
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kali Chemie AG
Original Assignee
Kali Chemie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19681816660 external-priority patent/DE1816660C3/en
Application filed by Kali Chemie AG filed Critical Kali Chemie AG
Publication of FR2026878A1 publication Critical patent/FR2026878A1/en
Withdrawn legal-status Critical Current

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.
FR6943811A 1968-12-23 1969-12-17 Producing ca3 (po4) 2 ca na po4 Withdrawn FR2026878A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

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Legal Events

Date Code Title Description
ST Notification of lapse