GB300961A - Improvements in or relating to the decomposition of raw phosphates - Google Patents

Improvements in or relating to the decomposition of raw phosphates

Info

Publication number
GB300961A
GB300961A GB33101/28A GB3310128A GB300961A GB 300961 A GB300961 A GB 300961A GB 33101/28 A GB33101/28 A GB 33101/28A GB 3310128 A GB3310128 A GB 3310128A GB 300961 A GB300961 A GB 300961A
Authority
GB
United Kingdom
Prior art keywords
sulphur
reaction
sulphate
decomposition
relating
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
GB33101/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB300961A publication Critical patent/GB300961A/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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

300,961. Messerschmitt, A. Nov. 21, 1927, [Convention date]. Sulphur dioxide is recovered from the gaseous products of reaction when raw phosphates, with or without the addition of basic or acid substances, are sintered with an alkali sulphate and a strong reducing agent such as carbon or iron pyrites. The amount of the latter used is sufficient only for partial reduction of the sulphate, whereby complete elimination of sulphur from the solid product is assured, particularly if the proportions of the other ingredients used are so adjusted that no free alkali or alkaline earth remains in the product. The provision of a strongly oxidizing atmosphere towards the end of the reaction is also advantageous for the removal of sulphur.
GB33101/28A 1927-11-21 1928-11-12 Improvements in or relating to the decomposition of raw phosphates Expired GB300961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE300961X 1927-11-21

Publications (1)

Publication Number Publication Date
GB300961A true GB300961A (en) 1929-10-31

Family

ID=6097069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33101/28A Expired GB300961A (en) 1927-11-21 1928-11-12 Improvements in or relating to the decomposition of raw phosphates

Country Status (1)

Country Link
GB (1) GB300961A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912317A (en) * 1957-08-12 1959-11-10 Int Minerals & Chem Corp Granular fertilizer and process of producing same
WO2015189333A1 (en) * 2014-06-11 2015-12-17 Outotec (Finland) Oy Production of citrate soluble phosphates by calcination of secondary phosphate sources with a sodium-sulfuric compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912317A (en) * 1957-08-12 1959-11-10 Int Minerals & Chem Corp Granular fertilizer and process of producing same
WO2015189333A1 (en) * 2014-06-11 2015-12-17 Outotec (Finland) Oy Production of citrate soluble phosphates by calcination of secondary phosphate sources with a sodium-sulfuric compound
US10259752B2 (en) 2014-06-11 2019-04-16 Outotec (Finland) Oy Production of citrate soluble phosphates by calcination of secondary phosphate sources with a sodium-sulfuric compound

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