Method For Loading Loose Iron Ore Partially Treated By Means Of Superabsorbents

Patent metadata

Field	Value
Publication number	US-2016101949-A1
Application number	US-201414786845-A
Country	US
Kind code	A1
Filing date	Feb 11, 2014
Priority date	Apr 26, 2013
Publication date	Apr 14, 2016
Grant date	—

Abstract

Process of loading the hold of a bulker in which the hold is loaded in succession with part of the ore treated with a superabsorbent polymer (SAP) and part of the ore not treated with a superabsorbent polymer (SAP).

First claim

1 . A process of loading a hold of a bulker in which the hold is loaded in succession with part of ore treated with a superabsorbent polymer and part of ore not treated with any superabsorbent polymer.

2 . The process according to claim 1 , characterized in that the part of the ore treated with the superabsorbent polymer forms a lower layer spread out over an entire bottom of the hold and the untreated part of the ore forms an upper layer.

3 . The process according to claim 1 characterized in that the ore is treated with variable concentrations of superabsorbent polymer.

4 . The process according to claim 1 , characterized in that a volume of ore treated with the superabsorbent polymer represents at the most 70% of a total volume of ore in the hold.

5 . The process according to claim 1 characterized in that the superabsorbent polymer comprises reticulated copolymers based on acrylamide and acrylic acid, partially or totally neutralized and also based on 2-acrylamido-2-methylpropane sulfonic acid partially or totally neutralized and/or monomers of a hydrophobic nature.

6 . The process according to claim 1 characterized in that the superabsorbent polymer contains a population of particles having a size smaller than 1 mm and a population of particles with size included between 1 and 4 mm.

7 . The process according to claim 1 characterized in that the quantity of superabsorbent polymer mixed into the ore is included between 0.05 and 1% by weight.

8 . The process according to claim 1 characterized in that the ore is treated with a superabsorbent polymer and a linear hydrosoluble polymer based on acrylamide.

9 . The process according to claim 8 characterized in that the linear hydrosoluble polymer has a molecular weight in excess of 10 million daltons.

10 . The process according to claim 8 characterised in that the quantity of linear polymer compared to the superabsorbent polymer is included between 1 and 10% by weight.

11 . The process according to claim 2 , characterized in that the untreated part of the ore forms an upper layer spread out over an entire surface of the lower layer.

12 . The process according to claim 5 , characterized in that the superabsorbent polymer comprises at least one of ethoxylated alkyl (meth)acrylates and ethoxylated alkyl (meth)acrylamides

Assignees

• Spcm Sa

Inventors

• Pich René
• Boehm Pascal
• Zakosek Gilles

Classifications

• C22B1/244 Primary

  organic · CPC title

• B65G67/606 Primary

  using devices specially adapted for bulk material · CPC title

• B01J20/264

  derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers · CPC title

• C08F20/06

  Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof · CPC title

• C08F20/56

  Acrylamide; Methacrylamide · CPC title