WO2023067477 - FERTILIZER COMPOSITION INCLUDING AMMONIUM SULPHATE COATED UREA PARTICLES
National phase entry:
Publication Number
WO/2023/067477
Publication Date
27.04.2023
International Application No.
PCT/IB2022/059949
International Filing Date
17.10.2022
Title **
[English]
FERTILIZER COMPOSITION INCLUDING AMMONIUM SULPHATE COATED UREA PARTICLES
[French]
COMPOSITION D'ENGRAIS COMPRENANT DES PARTICULES D'URÉE ENROBÉES DE SULFATE D'AMMONIUM
Applicants **
SABIC AGRI-NUTRIENTS COMPANY
PO Box 11044
Jubail 31961, SA
Inventors
BAG, Nilkamal
Plot No. 81-85, Chikkadunnasundra
Sarjapura
Bangalore 562125, IN
ACHANATH, Radha
Plot No. 81-85, Chikkadunnasundra
Sarjapura
Bangalore 562125, IN
Priority Data
21204051.3
21.10.2021
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Translation |
|
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1115 | |
| EPO | Filing, Examination | 4591 | |
| Japan | Filing | 589 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 9580 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A fertilizer composition includes coated urea ammonium sulfate particles, the coated urea ammonium sulfate particles including: a urea core; a first coating comprising urea sulfate; and a second coating comprising ammonium sulfate. Methods for making coated urea ammonium sulfate particles include: (a) combining urea particles with sulfuric acid to form intermediate particles including a first coating including urea sulfate; and (b) combining the intermediate particles with ammonia or an ammonium compound to form the coated urea ammonium sulfate particles, wherein the coated urea ammonium sulfate particles include a urea core, the first coating comprising urea sulfate, and a second coating including ammonium sulfate.[French]
L'invention concerne une composition d'engrais comprenant des particules d'urée enrobées de sulfate d'ammonium, les particules d'urée enrobées de sulfate d'ammonium comprenant : un noyau d'urée ; un premier enrobage comprenant du sulfate d'urée ; et un second enrobage comprenant du sulfate d'ammonium. L'invention concerne également des procédés pour la fabrication de particules d'urée enrobées de sulfate d'ammonium, comprenant : (a) la combinaison de particules d'urée avec de l'acide sulfurique pour former des particules intermédiaires comprenant un premier enrobage comprenant du sulfate d'urée ; et (b) la combinaison des particules intermédiaires avec de l'ammoniac ou un composé d'ammonium pour former les particules d'urée enrobées de sulfate d'ammonium, les particules d'urée enrobées de sulfate d'ammonium comprenant un noyau d'urée, le premier enrobage comprenant du sulfate d'urée et un second enrobage comprenant du sulfate d'ammonium.