ES443669A1 - Preparation of fertilisers and soil modifiers - Google Patents

Preparation of fertilisers and soil modifiers

Info

Publication number
ES443669A1
ES443669A1 ES443669A ES443669A ES443669A1 ES 443669 A1 ES443669 A1 ES 443669A1 ES 443669 A ES443669 A ES 443669A ES 443669 A ES443669 A ES 443669A ES 443669 A1 ES443669 A1 ES 443669A1
Authority
ES
Spain
Prior art keywords
ammonium sulfate
weight
products
sulfate
ferrous
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
ES443669A
Other languages
Spanish (es)
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of ES443669A1 publication Critical patent/ES443669A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A procedure for the preparation of fertilizers and soil modifiers, especially a composition useful as a soil modifier and a concentrated solution of ammonium sulfate with a high degree of purity, from by-products obtained in the production of titanium dioxide from ilmenites or ilmenite slag by the sulfate process, said by-products essentially consisting of ferrous sulfate heptahydrate, characterized by: (a) contacting solid particles of said by-products with gaseous ammonia, to obtain a reaction product consisting essentially of ammonium sulfate and ferrous hydroxide; (b) subjecting said reaction product to oxidation by oxygen or a molecular oxygen-containing gas, to convert said ferrous hydroxide into ferric hydroxide; (c) leaching the product obtained in step (b) with water, to separate from 85 to 95% by weight of said ammonium sulfate in the form of an aqueous solution with an ammonium sulfate content of at least 40 % by weight, and separating said solution from the residual solid; and (d) removing said residual solid to a water content of less than 20% by weight. (Machine-translation by Google Translate, not legally binding)
ES443669A 1974-12-20 1975-12-19 Preparation of fertilisers and soil modifiers Expired ES443669A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30825/74A IT1027880B (en) 1974-12-20 1974-12-20 PROCEDURE FOR THE PREPARATION OF SOIL PERTILIZERS AND MODIFIERS

Publications (1)

Publication Number Publication Date
ES443669A1 true ES443669A1 (en) 1977-05-01

Family

ID=11232317

Family Applications (1)

Application Number Title Priority Date Filing Date
ES443669A Expired ES443669A1 (en) 1974-12-20 1975-12-19 Preparation of fertilisers and soil modifiers

Country Status (10)

Country Link
JP (1) JPS5411160B2 (en)
DE (1) DE2557550C3 (en)
ES (1) ES443669A1 (en)
FR (1) FR2294642A1 (en)
GB (1) GB1487902A (en)
IN (1) IN142988B (en)
IT (1) IT1027880B (en)
MX (1) MX3474E (en)
YU (1) YU36908B (en)
ZA (1) ZA757700B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2049127B1 (en) * 1991-06-13 1994-10-01 Tioxide Espa A S A CORRECTOR OF MICROELEMENTS LAWS FOR AGRICULTURAL SOILS AND PROCEDURE FOR ITS PREPARATION.
WO2008034921A1 (en) 2006-09-18 2008-03-27 Fertinagro Nutrientes, S.L. Process for obtaining fertilizers from tio2 subproducts, and products obtained in this manner
GR1006856B (en) * 2006-10-06 2010-07-06 Νικολαος Κωνσταντινου Χρυσοχου Production method of salts of bivalent and trivalent iron with slag of metallurgy of ferro-nickel or steel industry for use in the production procedure of cement and elsewhere.
MX2015008600A (en) * 2013-01-07 2015-10-29 Sachtleben Chemie Gmbh Titanium-containing aggregate, method for the production thereof and use thereof.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT981209B (en) * 1973-03-08 1974-10-10 Sir Soc Italiana Resine Spa COMPOSITIONS SUITABLE TO BE USED IN AGRICULTURE AS SOIL FICATORS AND AS LIZING FERTS

Also Published As

Publication number Publication date
FR2294642B1 (en) 1978-05-19
DE2557550C3 (en) 1979-03-01
DE2557550B2 (en) 1978-07-20
YU319375A (en) 1982-06-18
MX3474E (en) 1980-12-10
ZA757700B (en) 1976-11-24
IT1027880B (en) 1978-12-20
IN142988B (en) 1977-09-17
DE2557550A1 (en) 1976-07-01
GB1487902A (en) 1977-10-05
FR2294642A1 (en) 1976-07-16
JPS5411160B2 (en) 1979-05-12
JPS5192800A (en) 1976-08-14
AU8749975A (en) 1976-11-18
YU36908B (en) 1984-08-31

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