GB424045A - Process for the production of phosphatic fertilizers - Google Patents

Process for the production of phosphatic fertilizers

Info

Publication number
GB424045A
GB424045A GB20811/34A GB2081134A GB424045A GB 424045 A GB424045 A GB 424045A GB 20811/34 A GB20811/34 A GB 20811/34A GB 2081134 A GB2081134 A GB 2081134A GB 424045 A GB424045 A GB 424045A
Authority
GB
United Kingdom
Prior art keywords
heated
steam
production
hour
hours
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
Application number
GB20811/34A
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
Application filed by Kali Chemie AG filed Critical Kali Chemie AG
Publication of GB424045A publication Critical patent/GB424045A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Fertilizers (AREA)

Abstract

Fertilizers are prepared by treating natural phosphorites with steam at temperatures above 1000 DEG C. in the absence of salts or alkalis, to expel fluorine, then discontinuing the steam supply and raising the temperature to above 1300 DEG C. and up to fusion point if desired. Silica may be added to the raw material. In examples: (1) A Russian apatite is heated in a current of steam for 6 hours at 1200 DEG C., then heated for \ba1/2\be hour at 1500 DEG C. (2) A Constantine phosphate is mixed with quartz sand and heated in steam at 1150 DEG C. for 4 hours, then heated at 1450 DEG C. for 1 hour.
GB20811/34A 1933-08-29 1934-07-16 Process for the production of phosphatic fertilizers Expired GB424045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE424045X 1933-08-29

Publications (1)

Publication Number Publication Date
GB424045A true GB424045A (en) 1935-02-13

Family

ID=6474157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20811/34A Expired GB424045A (en) 1933-08-29 1934-07-16 Process for the production of phosphatic fertilizers

Country Status (1)

Country Link
GB (1) GB424045A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740897C (en) * 1937-01-20 1944-02-29 Klangfilm G M B H Elimination of the thunder effect in the photographic recording of tones or the like.
US2479389A (en) * 1946-04-26 1949-08-16 Corenst Phosphate Company Defluorination of phosphate rock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740897C (en) * 1937-01-20 1944-02-29 Klangfilm G M B H Elimination of the thunder effect in the photographic recording of tones or the like.
US2479389A (en) * 1946-04-26 1949-08-16 Corenst Phosphate Company Defluorination of phosphate rock

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