GB339969A - Improvements in and relating to the production of mixtures suitable for use as fertilisers - Google Patents

Improvements in and relating to the production of mixtures suitable for use as fertilisers

Info

Publication number
GB339969A
GB339969A GB28112/29A GB2811229A GB339969A GB 339969 A GB339969 A GB 339969A GB 28112/29 A GB28112/29 A GB 28112/29A GB 2811229 A GB2811229 A GB 2811229A GB 339969 A GB339969 A GB 339969A
Authority
GB
United Kingdom
Prior art keywords
mother liquor
reaction
urea
nitrate
substances
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
GB28112/29A
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.)
Odda Smelteverk AS
Original Assignee
Odda Smelteverk AS
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 Odda Smelteverk AS filed Critical Odda Smelteverk AS
Publication of GB339969A publication Critical patent/GB339969A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
    • C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

339,969. Odda Smelteverk Aktieselskabet, and Johnson, E. Nov. 24, 1928, [Convention date]. Addition to 339,340. Manures. - Compound fertilizers are obtained in processes in which the mother liquor, obtained after the crystallization of calcium nitrate from a solution of phosphate rock in nitric acid as described in the parent Specification, is neutralized with or cause to react with ammonia, urea, cyanimide or cyanamide salts such as calcium cyanamide, mineral phosphates, compounds of ammonia and carbonic acid, alkali carbonates and the like, or with a plurality of these substances, so that after the removal of water from the product, dry stable fertilizing substances are obtained. In addition, one or more further compounds, for example potassium or ammonium salts such as the sulphate. nitrate, chloride or phosphate, urea, or urea salts may be added in the solid, dissolved or molten state before, during or after the reaction of the substances previously referred to. The lime content of the mother liquor may be removed prior to the neutralization or reaction by precipitation with sulphuric acid. ammonium sulphate, alkali sulphates, alkali bisulphate or the like, and filtration. The mother liquor may be prepared containing ,as much nitric acid as is desired in the final product as nitrate. The reaction or neutralization may be carried out under vacuum to utilize more efficiently the heat of reaction developed for evaporating the water present. The apparatus employed in handling the mother liquor may be constructed of or lined with ebonite or a composition comprising asbestos and the material known under the Registered Trade Mark " Bakelite."
GB28112/29A 1928-11-24 1929-09-16 Improvements in and relating to the production of mixtures suitable for use as fertilisers Expired GB339969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO339969X 1928-11-24

Publications (1)

Publication Number Publication Date
GB339969A true GB339969A (en) 1930-12-16

Family

ID=19905301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28112/29A Expired GB339969A (en) 1928-11-24 1929-09-16 Improvements in and relating to the production of mixtures suitable for use as fertilisers

Country Status (1)

Country Link
GB (1) GB339969A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132935A (en) * 1957-03-14 1964-05-12 Kalk Chemische Fabrik Gmbh Process for the production of complex fertilizers
EP3061741A1 (en) * 2015-02-27 2016-08-31 Carmen Bohndick Device and method for industrial upgrading of recycling phosphor sources

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132935A (en) * 1957-03-14 1964-05-12 Kalk Chemische Fabrik Gmbh Process for the production of complex fertilizers
EP3061741A1 (en) * 2015-02-27 2016-08-31 Carmen Bohndick Device and method for industrial upgrading of recycling phosphor sources

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