EP3894069A1 - Adsorbant zéolithique coloré - Google Patents
Adsorbant zéolithique coloréInfo
- Publication number
- EP3894069A1 EP3894069A1 EP19842790.8A EP19842790A EP3894069A1 EP 3894069 A1 EP3894069 A1 EP 3894069A1 EP 19842790 A EP19842790 A EP 19842790A EP 3894069 A1 EP3894069 A1 EP 3894069A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zeolitic
- material according
- pigment
- zeolite
- black
- 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.)
- Withdrawn
Links
- 239000003463 adsorbent Substances 0.000 title claims abstract description 47
- 239000010457 zeolite Substances 0.000 title claims abstract description 36
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 22
- 239000000049 pigment Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 24
- 238000005054 agglomeration Methods 0.000 claims abstract description 20
- 230000002776 aggregation Effects 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 10
- 239000008199 coating composition Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 229960000892 attapulgite Drugs 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 229910052625 palygorskite Inorganic materials 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 5
- 239000000975 dye Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 description 16
- 239000011324 bead Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 6
- 239000002808 molecular sieve Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004040 coloring Methods 0.000 description 4
- 239000007888 film coating Substances 0.000 description 4
- 238000009501 film coating Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004609 Impact Modifier Substances 0.000 description 1
- 244000126010 Pithecellobium dulce Species 0.000 description 1
- 235000002194 Pithecellobium dulce Nutrition 0.000 description 1
- 235000007891 Pithecellobium lobatum Nutrition 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 and the like Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3028—Granulating, agglomerating or aggregating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3042—Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3291—Characterised by the shape of the carrier, the coating or the obtained coated product
- B01J20/3293—Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B3/66361—Section members positioned at the edges of the glazing unit with special structural provisions for holding drying agents, e.g. packed in special containers
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/12—Measures preventing the formation of condensed water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/49—Materials comprising an indicator, e.g. colour indicator, pH-indicator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/80—Aspects related to sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J2220/82—Shaped bodies, e.g. monoliths, plugs, tubes, continuous beds
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/24—Single frames specially adapted for double glazing
Definitions
- the present invention relates to the field of zeolitic adsorbents and more particularly that of agglomerated zeolitic adsorbents used in various dynamic or static applications.
- Zeolite adsorbents also called “molecular sieves”, or more simply “zeolites” are today widely known and find uses in very many diverse and varied fields which range from catalysis to the separation of chemical compounds, based on the adsorption properties of zeolites, whether natural, artificial or synthetic.
- Zeolites are most often aluminosilicates in crystallized form. These alumino-silicate crystals are generally very small crystals, on the order of a few nanometers to a few micrometers, and their handling and use are somewhat delicate.
- Zeolite crystals are thus very often shaped, by various means, by compacting or more generally by agglomeration with a binder called agglomeration binder which can be organic or mineral, for example polymers or clays.
- agglomeration binder which can be organic or mineral, for example polymers or clays.
- the zeolite crystals agglomerated with an agglomeration binder are called "agglomerated zeolitic adsorbents".
- the agglomerated zeolitic adsorbents are of variable sizes, generally between a few micrometers and a few millimeters, and have, thanks in particular to the agglomeration binder, properties of mechanical resistance, in particular of mechanical resistance to crushing and or to l 'quite interesting attrition.
- agglomerated zeolitic adsorbents are used in closed, closed places, so that they are generally not visible to the user. Their appearance and color therefore seem a priori unimportant.
- Agglomerated zeolitic adsorbents are thus commonly in the form of beads or extrudates and of variable color, going from white to brown, passing through shades of gray. There are certain situations, however, for which it would be desirable to have access to zeolitic adsorbents of agglomerated colors, for example blue, red, yellow, green, black, and the like.
- Such agglomerated zeolitic adsorbents having a color different from their "natural" color simply do not exist on the market today. It could however prove to be very useful to be able to have agglomerated zeolitic adsorbents of various colors, and in particular adapted to the specific uses for which they are intended.
- the filming processes known so far are most often carried out using attapulgite type clays and have been shown to be effective in reducing the generation of dust.
- the agglomerates obtained are, however, in the appearance of light beige beads after the activation step at 550 ° C.
- To be able to control the coloration of agglomerates of activated molecular sieves that is to say after the activation step, it is therefore necessary to develop film-coating formulations which lead, after activation, to beads on the one hand generating only little dust, and on the other hand whose possible dust is of well defined and controlled color.
- a coloring domain is defined using the well-known chromaticity coordinates of the L * a * b * system of the CIE (1976), defined as follows:
- the parameter b * represents the value on a blue yellow axis from -120 to +120.
- the coating obtained according to the method of the present invention does not alter, or only slightly, the adsorption properties, and very particularly the capacities d adsorption, in particular water adsorption.
- the present invention relates to a zeolitic adsorbent material comprising:
- zeolitic agglomerate comprising at least one zeolite and at least one agglomeration binder
- agglomerate being coated with a coating comprising at least one pigment.
- the zeolitic adsorbent material, coated with a coating comprising at least one pigment thus has a particular coloration, in particular due to the pigment present in said coating.
- the zeolitic adsorbent material of the present invention has a color whose L * component is preferably between 0 and 80, more preferably between 0 and 60, more preferably between 0 and 50, advantageously between 0 and 40.
- the zeolitic adsorbent material of the present invention has a color whose component a * is between -100 and +100, preferably between -80 and +80, more preferably between -60 and + 60, advantageously between -40 and +40, more advantageously between -20 and +20.
- the zeolitic adsorbent material of the present invention has a color whose component b * is between -100 and +100, preferably between -80 and +80, more preferably between -60 and +60, advantageously between -40 and +40, more advantageously between -20 and +20.
- the zeolitic adsorbent material of the present invention has a color within the following range:
- the coating has a thickness of between 10 pm and 1000 pm, preferably between 10 pm and 300 pm, more preferably between 10 pm and 150 pm, measured with the electron microscope, on a section of zeolitic adsorbent material according to the invention.
- Said at least one zeolite included in the adsorbent material according to the present invention can be any type of adsorbent material, known per se, either of natural, synthetic or artificial origin.
- zeolites which can be put in used in the present invention are the zeolites which have an Si / Al atomic ratio of between 1 and 100, preferably between 1 and 50, more preferably between 1 and 20, very preferably, between 1 and 10, advantageously 1 and 6.
- the zeolites are those having an average particle size is less than 20 ⁇ m, preferably less than 15 ⁇ m and generally and advantageously greater than 0.05 ⁇ m, preferably greater than 0 , 1 pm.
- the average particle size is measured by laser diffraction, for example using a Malvern® Instrument Mastersizer S device, standard NF ISO 13320 (2000).
- the amount of zeolite (s), present in the form of crystals of zeolite (s), is preferably greater than 65%, more preferably still greater than 70% by weight. relative to the total weight of said adsorbent material and this amount is less than 99%, preferably less than 95%, more preferably less than 90%, very preferably less than or equal to 85% by weight relative to the total weight of said adsorbent material.
- the amount of zeolite (s), present in the form of crystals of zeolite (s), is between 65% and 99%, preferably between 65% and 95%, more preferably between 70% and 90%, advantageously between 70% and 85% by weight relative to the total weight of said adsorbent material.
- the material according to the invention comprises an agglomeration binder.
- the agglomeration binder can be of any type known to those skilled in the art, in particular chosen from clays, and mineral binders commonly used in the field of zeolites.
- the agglomeration binder may contain a clay or mixtures of agiles, such as, for example, bentonite, attapulgite, kaolin, and the like, as well as additives intended, for example, to facilitate agglomeration or to improve the hardening of the agglomerates formed.
- the pigments (or dyes) which can be used to coat the material of the present invention can be of very diverse origins, provided that their color corresponds to the desired color for said material, after the implementation steps which will be detailed below, and in particular after the calcination step necessary for the activation of said zeolitic adsorbent material carried out between approximately 450 ° C. and approximately 600 ° C.
- a pigment which can be used in the context of the present invention can have a certain color, which color may be different in the final product, the material after calcination.
- pigments which have been shown to be entirely suitable for the needs of the present invention, mention may be made, on the one hand, of dyes of plant origin, such as those obtained by calcination of different plants, and for example, and without limitation the peach black, the smoke black, the wine black, and on the other hand the dyes of mineral origin, for example, and without limitation the vine black, the mineral black.
- dyes of plant origin such as those obtained by calcination of different plants, and for example, and without limitation the peach black, the smoke black, the wine black, and on the other hand the dyes of mineral origin, for example, and without limitation the vine black, the mineral black.
- the amount of pigment present in the material according to the invention can vary within large proportions, and depends above all on the desired coloration, while minimizing as effectively as possible the possible negative impact on the intrinsic effectiveness of the zeolitic adsorbent material.
- the amount of pigment present in the adsorbent material according to the invention is generally between 0.01% and 10% by weight, preferably between 0.1% and 1% by weight, relative to the total weight of the adsorbent material zeolitic according to the invention.
- the adsorbent material according to the present invention can also comprise one or more additives, commonly used in compounding techniques.
- additives can be chosen from UV stabilizers, antioxidants, impact modifiers, phase change materials, flame retardants, odorants, and others.
- the invention relates to the process for preparing the zeolitic adsorbent material as it has just been defined, said process comprising the following steps:
- step b) coating of the agglomerate prepared and shaped in step a) using a coating composition comprising at least one pigment
- step b) drying the film-coated agglomerate obtained in step b) at a temperature generally between 80 ° C and 200 ° C, for example at about 120 ° C;
- Step a) of agglomeration is quite well known to those skilled in the art and is for example described in FR2424058, for the manufacture of zeolitic agglomerates in the form of beads.
- the coating composition useful in the context of the present invention comprises at least one pigment, and according to a preferred embodiment, the coating composition comprises at least one pigment and at least one binder which is preferably a porous binder .
- the binder is advantageously for example, and in a nonlimiting manner, chosen from clays, such as those commonly used for the preparation of zeolitic agglomerates, and advantageously from bentonite, attapulgite, and kaolin.
- the pigment (s) is advantageously intimately mixed with the binder to form the coating composition which is most often in the form of a more or less pulverulent solid.
- the proportion of pigment (s) in the coating composition varies in large proportions, depending in particular on the desired final color, the particle size of the pigment, and the particle size of the binder.
- the proportion by weight of pigment relative to the total weight of the coating composition is between 1% to 99%, preferably 1% to 50%, more preferably from 1% to 30%.
- a process particularly suitable for the needs of the present invention may consist of spraying a coating formulation on the agglomerate obtained in step a) while still wet. During this operation, it may be desirable or necessary to add a quantity of water in order to ensure the best possible adhesion of the coating composition to the surface of the agglomerate. This amount of water can be easily adapted by a person skilled in the art.
- This filming operation can be carried out in all types of apparatus suitable for such an operation, such as for example a rotating plate, drum, conveyor belt, vibrating conveyor, conveyor and vibrating conveyor, and others.
- drying and activation operations are most often carried out in an oven, rotary ovens being particularly suitable for this type of operation.
- the zeolitic adsorbent material thus obtained comprises a pigment, present in the film coating coating the adsorbent.
- the material according to the invention can thus be used in all the applications for which it is useful, while also presenting the color originating from the pigment present in the coating.
- a material in the form of beads of zeolitic agglomerates of color in particular of dark color, and more particularly of black color, which is completely suitable as a desiccant in double glazing which has metal strips pierced with holes to allow contact of the moisture adsorbent with the air gap present between the two panes of double glazing, and in particular between the two panes of a window called "double glazing".
- the present invention relates to a window equipped with double glazing comprising an agglomerated film-coated zeolitic material with a colored coating as just defined in the description of the present invention .
- Measuring the water adsorption capacity of the activated beads to verify that the film coating does not affect the efficiency of dehydration of the adsorbent material comparing the water adsorption capacities of a film-coated adsorbent material and colorful, according to the invention, with the adsorption capacities of a non-filmed material, in an atmosphere with a humidity level fixed at 10%.
- the method of measuring the water absorption capacity consists in measuring the increase in weight of a sample of material placed in a sealed enclosure at constant humidity and temperature for a sufficient time to reach saturation.
- a sample of about 1 g of beads is placed for 48 hours in an enclosure thermostatically controlled at 25 ° C at 10% humidity, which corresponds to the atmosphere of an aqueous solution of sulfuric acid of density 1 , 554.
- the water adsorption capacity expressed in% by weight is equal to
- the Minolta CR-300 color measurement device is used. Before carrying out the color measurements, a calibration is carried out from a reference color plate supplied with the measuring device. To measure the color of materials, the material is placed in a small cavity where the measurement is made and the material is wedged with a flat glass. The CIE-Lab color measurement is carried out by placing the measurement head flat on the glass and then the color measurement is carried out. The result is displayed after a few seconds on the device screen.
- a zeolitic adsorbent material by agglomerating 3A zeolite crystals (NK30SP from the company Arkema) with an agglomeration binder (clay), at a rate of 25% by weight of agglomeration binder and 75% by weight of zeolite crystals.
- This agglomerated material obtained is film-coated in a rotating plate using a mixture of Zeoclay attapulgite clay (sold by ARKEMA) (70 parts by weight) and natural iron oxide "Vine Black pigment” from the Color Mill (30 parts by weight).
- the film-coated agglomerate is then dried at 200 ° C for 2 hours, then activated at 550 ° C for 1 hour.
- the material obtained is in the form of black beads with an average diameter of 1.3 mm, coated with a film of thickness between 50 ⁇ m and 100 ⁇ m.
- the color of said material is close to black with the following L * a * b * values:
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- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1872873A FR3089823B1 (fr) | 2018-12-13 | 2018-12-13 | Adsorbant zéolithique coloré |
| PCT/FR2019/052916 WO2020120876A1 (fr) | 2018-12-13 | 2019-12-04 | Adsorbant zéolithique coloré |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3894069A1 true EP3894069A1 (fr) | 2021-10-20 |
Family
ID=66542367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19842790.8A Withdrawn EP3894069A1 (fr) | 2018-12-13 | 2019-12-04 | Adsorbant zéolithique coloré |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220032263A1 (fr) |
| EP (1) | EP3894069A1 (fr) |
| CN (1) | CN113164912A (fr) |
| FR (1) | FR3089823B1 (fr) |
| WO (1) | WO2020120876A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240237597A1 (en) * | 2023-01-18 | 2024-07-18 | Daniel Matthews-Ferrero | Porous Self-Watering Planter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1112026A (fr) | 1978-04-27 | 1981-11-10 | John S. Nixon | Machines a fabriquer les boulettes, a cuvette rotative |
| DK280482A (da) * | 1981-06-23 | 1982-12-24 | Takeda Chemical Industries Ltd | Flerlagsglasstruktur og adsorbent dertil |
| US20070122609A1 (en) * | 1999-11-23 | 2007-05-31 | Hiltzik Laurence H | Porous coatings on adsorbent materials |
-
2018
- 2018-12-13 FR FR1872873A patent/FR3089823B1/fr not_active Expired - Fee Related
-
2019
- 2019-12-04 EP EP19842790.8A patent/EP3894069A1/fr not_active Withdrawn
- 2019-12-04 WO PCT/FR2019/052916 patent/WO2020120876A1/fr not_active Ceased
- 2019-12-04 US US17/312,263 patent/US20220032263A1/en not_active Abandoned
- 2019-12-04 CN CN201980082564.5A patent/CN113164912A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020120876A1 (fr) | 2020-06-18 |
| CN113164912A (zh) | 2021-07-23 |
| US20220032263A1 (en) | 2022-02-03 |
| FR3089823B1 (fr) | 2022-07-01 |
| FR3089823A1 (fr) | 2020-06-19 |
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