US 10,519,354 B2 · Porous oil binder and method for the production thereof

Abstract

The invention relates to a hydrophobed porous oil binder in the form of a nonwoven fabric composed of lignocellulose-containing raw materials having a biologically functionalized surface for removing mineral-oil-based contaminants in seas, rivers, inland waters, and stormwater basins or wastewater treatment plants, wherein the density of the oil binder is 10 to 900 kg/m3, the oil binder is 1 to 25 mm thick, the broad surface of the oil binder has a dimension of 9 to 200 cm2, the porosity of the oil binder is 30 to 96%, measured with respect to the total fraction of the oil binder, and the flexural strength of the oil binder is at least 1.5 N/mm2.

Claims10

Dependent claims

A porous oil sorbent in the form of a nonwoven material, comprising fibres formed from lignocellulosic raw materials, wherein:

a) the density of the oil sorbent is 80 to 300 kg/m3,
b) the oil sorbent is 3 to 6 mm thick, wherein thickness of the oil sorbent refers to the length of the shortest edge of the oil sorbent,
c) the large surface of the oil sorbent has a dimension of 9 to 200 cm2,
d) the pore fraction of the oil sorbent is 30% to 96%, wherein the pore fraction is determined in accordance with DIN EN 310, and
e) the bending strength of the oil sorbent is at least 1.5 N/mm2, wherein the bending strength is determined using DIN EN 310.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/915,198Filed 27 Aug 2014

Priority

DE 10 2013 217 01627 Aug 2013

Published

US 2016/0200602 A114 Jul 2016

Granted

31 Dec 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

C09K 3/32
Materials not provided for elsewhere: for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
B01J 20/24
Comprising organic material: naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
B01J 20/28011
Characterised by their physical properties: other properties, e.g. density, crush strength
B01J 20/28038
Membrane, sheet, cloth, pad, lamellar or mat: membranes or mats made from fibers or filaments

Porous oil binder and method for the production thereof

Life of this patent

Porous oil binder and method for the production thereof

Life of this patent

Abstract

Claims10