U.S. patent application number 13/580224 was filed with the patent office on 2013-01-03 for filter.
Invention is credited to Evgeniy Petrovich Osinenko.
Application Number | 20130000654 13/580224 |
Document ID | / |
Family ID | 44649440 |
Filed Date | 2013-01-03 |
United States Patent
Application |
20130000654 |
Kind Code |
A1 |
Osinenko; Evgeniy
Petrovich |
January 3, 2013 |
FILTER
Abstract
The invention relates to filtering systems having high adsorbent
and filtering properties. A filter comprising an adsorbent powder
placed in a nonwoven material, wherein an adsorbent powder of
0.01-10 .mu.m, or 0.01-40 .mu.m, or 0.01-100 .mu.m, or 40-100
.mu.m, or 40-500 .mu.m, or 40-1000 .mu.m, or 100-500 .mu.m, or
100-1000 .mu.m, or 100-2000 .mu.m, or 1000-2000 .mu.m particles
size is placed in a nonwoven filtering material with a density of
50-1500 kg/m.sup.3 through impregnating said nonwoven filtering
material with aqueous suspension containing the adsorbent, which is
prepared in a ratio as one part of water and one part of the
adsorbent or in such a ratio that enables the aqueous suspension
containing the adsorbent to impregnate said nonwoven filtering
material.
Inventors: |
Osinenko; Evgeniy Petrovich;
(Tomsk, RU) |
Family ID: |
44649440 |
Appl. No.: |
13/580224 |
Filed: |
March 3, 2011 |
PCT Filed: |
March 3, 2011 |
PCT NO: |
PCT/RU11/00134 |
371 Date: |
August 21, 2012 |
Current U.S.
Class: |
131/331 |
Current CPC
Class: |
B01J 20/28011 20130101;
B01D 2239/0407 20130101; B01J 20/324 20130101; B01J 20/3208
20130101; B01J 20/28004 20130101; B01J 20/3236 20130101; B01J
20/28028 20130101 |
Class at
Publication: |
131/331 |
International
Class: |
A24D 3/06 20060101
A24D003/06 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 19, 2010 |
RU |
2010110433 |
Claims
1. A filter comprising an adsorbent powder placed in a nonwoven
material, wherein an adsorbent powder of 0.01-10 .mu.m, or 0.01-40
.mu.m, or 0.01-100 .mu.m, or 40-100 .mu.m, or 40-500 .mu.m, or
40-1000 .mu.m, or 100-500 .mu.m, or 100-1000 .mu.m, or 100-2000
.mu.m, or 1000-2000 .mu.m particles size is placed in a nonwoven
filtering material with a density of 50-1500 kg/m3 through
impregnating said nonwoven filtering material with aqueous
suspension containing the adsorbent, which is prepared in a ratio
as one part of water and one part of the adsorbent or in such a
ratio that enables the aqueous suspension containing the adsorbent
to impregnate said nonwoven filtering material.
2-3. (canceled)
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a U.S. national stage application of the
PCT application PCT/RU2011/000134 filed on 3 Mar. 2011, whose
disclosure is incorporated herein in its entirety by reference,
which PCT application claims priority of a Russian Federation
application RU2010110433 filed on 19 Mar. 2010.
FIELD OF THE INVENTION
[0002] The invention relates to filtering systems having high
adsorbent and filtering properties. The invention is intended for
filtering gases and solutions.
BACKGROUND OF THE INVENTION
[0003] Adsorbents and nonwoven materials are currently used in
filters. An adsorbent having high adsorbing capacity is placed in
the nonwoven materials. Nonwoven materials are used to hold the
adsorbent particles in gaseous and liquid flows and also as a
filter to entrap substances of micron size.
[0004] It is obvious, when the surface area per unit volume of an
adsorbent in the filter is larger then the adsorption level is
higher. Adsorbent surface area may be enlarged by means of two
known methods: a) increasing the amount of an adsorbent in the
filter, or b) using a fine-powder adsorbent of micron size.
However, filter manufactures do not use or cannot use the aforesaid
methods since the increase of the amount of an adsorbent in a
filter or usage of a fine-powder adsorbent of micron size:
[0005] Reduces filter efficiency, while rising the excessive filter
pressure to increase filtration under the same filtering efficiency
is not cost-effective and/or viable and/or feasible,
[0006] Adsorbent is not trapped in the nonwoven material.
[0007] It is known a cigarette filter, consisting of an acetate
fiber with an adsorbent placed inside --see
http://en.wikipedia.org/wiki/Cigarette_filter. The drawback of said
embodiment is the low filtration of harmful substances due to the
small surface area per unit volume of an adsorbent in the
filter.
[0008] The closest to the technical essence of the given invention,
i.e. the prototype of the invention, aimed at the improvement of
filtration of substances from gases and solutions, is the
international patent application PCT/IB2005/004001
(WO/2006/064371). The drawback of the prototype is the insufficient
level of filtration of harmful substances contained in the
cigarette smoke due to the small surface area per unit volume of an
adsorbent in the filter.
DESCRIPTION OF THE INVENTION
[0009] For the purposes of a proper understanding of terms used in
the present invention the following terminology has been used:
[0010] Adsorbents are artificial and natural materials with large
surface having high capacity properties to adsorb substances from
gases and solutions surrounding an adsorbent. Adsorbing properties
of an adsorbent depend on chemical composition and physical
condition of the surface area, porosity nature and surface area per
unit volume of an adsorbent (i.e a surface area per 1 g of
substance). Among primary adsorbents are charcoal, silica-gels,
alumina-silica-gels, carbon-black, oxides and hydro-oxides of some
metals (mainly, aluminum), sponge metals, natural minerals, clays
(bentonite).
[0011] Nonwoven materials are materials, fabrics and items made of
fiber, filaments and/or other types of natural and/or synthetic
materials without spinning and weaving. Nonwoven materials are
nitron, sintepon, laysan, capron, foam rubber, fiberglass, silica
fiber and basalt fiber and other known nonwoven materials.
[0012] The technical result of the invention is the development of
a new filter, comprising an adsorbent powder placed in a nonwoven
material, with higher filtration level as compared to those known
in the art. The technical result according to the embodiment of the
invention is achieved as follows:
[0013] A filter comprising an adsorbent powder placed in a nonwoven
material, wherein an adsorbent powder of 0.01-10 .mu.m, or 0.01-40
.mu.m, or 0.01-100 .mu.m, or 40-100 .mu.m, or 40-500 .mu.m, or
40-1000 .mu.m, or 100-500 .mu.m, or 100-1000 .mu.m, or 100-2000
.mu.m, or 1000-2000 .mu.m particles size is placed in a nonwoven
filtering material with a density of 50-1500 kg/m.sup.3 through
impregnating said nonwoven filtering material with aqueous
suspension containing the adsorbent, which is prepared in a ratio
as one part of water and one part of the adsorbent or in such a
ratio that enables the aqueous suspension containing the adsorbent
to impregnate said nonwoven filtering material.
DESCRIPTION OF DRAWINGS
[0014] FIGURE attached hereto shows a filtering device intended for
filtrating substances from gases and solutions.
[0015] Said filtering device consists of a cylinder body 1, filter
cover 2, solution inlet 3, solution outlet 4, filtering cassette 5
of nonwoven material, wherein an adsorbent is evenly placed, and a
filter cover 6.
EMBODIMENT OF THE INVENTION
[0016] The principle of operation of the filtering device intended
for filtrating substances from gases and solutions is as follows:
one or several filter cassettes 5, consisting of a nonwoven
material with adsorbent, are inserted into the cylinder body 1
through the filter cover 2. The cover 2 is tightly closed, and then
the gas or solution to be filtered is pumped or flows freely though
the inlet 3. Said gas or solution passes through one or several
filtering cassettes 5 and goes out from the outlet 4 as a
filtrate.
APPLICATIONS OF THE INVENTION
[0017] The invention may be applicable in the filters used for
filtrating substances from gases and solutions.
* * * * *
References