WO1996023584A1 - Materiau d'adsorption - Google Patents

Materiau d'adsorption Download PDF

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Publication number
WO1996023584A1
WO1996023584A1 PCT/DE1996/000162 DE9600162W WO9623584A1 WO 1996023584 A1 WO1996023584 A1 WO 1996023584A1 DE 9600162 W DE9600162 W DE 9600162W WO 9623584 A1 WO9623584 A1 WO 9623584A1
Authority
WO
WIPO (PCT)
Prior art keywords
adsorption material
cellulose
material according
adsorption
mixed
Prior art date
Application number
PCT/DE1996/000162
Other languages
German (de)
English (en)
Inventor
Thomas Kühne
Kurt Böhler
Hans-Dieter Stürmer
Original Assignee
Kuehne Thomas
Boehler Kurt
Stuermer Hans Dieter
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuehne Thomas, Boehler Kurt, Stuermer Hans Dieter filed Critical Kuehne Thomas
Publication of WO1996023584A1 publication Critical patent/WO1996023584A1/fr

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Classifications

    • 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
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives

Definitions

  • the invention relates to an adsorption material for binding liquids and a method for its production.
  • Such an adsorption material is regularly used when liquids have accidentally escaped from a container, for example as a result of an accident, and are to be collected again. This is regularly the case when, for example, tankers filled with oil or petrol are damaged and their contents pour into the environment. The leaked liquid can be bound very effectively with an adsorption material and then easily collected.
  • adsorption material for example, the solidification of sewage sludge, liquid manure, manure or compost.
  • chemically pure sewage sludge can be used as fertilizer in agriculture.
  • Due to their mechanical properties, their use is not easy and can only be a corresponding effort is possible.
  • Attempts to mix sewage sludge with paper sludge, for example, in order to be able to discharge it better, have not achieved the desired success.
  • the disadvantage of this method is that a sewage sludge mixed with paper sludge forms a viscous mass which, after application, forms a layer on the ground which seals off the ground from the oxygen in the air, so that soil life is destroyed.
  • the adsorbent material has cellulose-containing material in fibrillated form.
  • the cellulose-containing material can advantageously consist of cellulose waste from the paper industry.
  • the cellulose-containing material can have lignin-free and lign-containing material.
  • the cellulose old material is fibrillated by squeezing, pulling or cutting. Short, intense, pulsating beats are exerted on the cellulose-containing material.
  • Fibrillation can take place, for example, with a device which contains rotating knives, such as are used, for example, in machines for grinding coffee.
  • the cellulose-containing material is sheared or sheared, for example, by rotating knife-like flat bars by shearing.
  • the processing of the material in the moist to wet state in which it is swollen is particularly advantageous.
  • Such a treatment releases very fine fibers or fibrils of the material in a mechanical manner. In principle, the treatment makes cellulose fibers more diverse Length and strength classes split lengthways.
  • the adsorption material thus produced has very good suction properties.
  • Mineral substances can be added to the cellulose-containing material in a particularly advantageous manner. Lime has proven to be particularly suitable. The formation of granules is greatly improved by the addition of mineral substances. Such a material can be handled very well, which has a very advantageous effect on the transport and a possible application of the material.
  • the mineral substances can be admixed in such a way that the mixture is subjected to a pulsating press when the substance is added or subsequently.
  • the treatment of the mixture with an arrangement in which two interlocking, rotating square arrangements circulate the material has proven to be particularly advantageous.
  • the rotation of the arrangements briefly exerts a pressure on the mixture part located between the four edges, as occurs, for example, in the form of a pulse in the event of a blow. So that the pressure does not become too great, the distance between the surfaces of the intermeshing square that are at times opposed during the rotation should not be less than 1 cm.
  • a speed of the arrangements between 50 and 300 revolutions per minute has proven to be particularly advantageous.
  • Flat bars for example, can be used as the square.
  • the arrangements can be drum-shaped, the square edges interlocking in a tooth-like manner, or, similar to a dough kneading machine, can be intertwined and intermesh accordingly.
  • the material can also be mixed with a binder, such as glue, and the resulting mass can be mixed with burnt or slaked lime and hydroscopic fillers, for example by a treatment corresponding to paper production, and mixed intensively, so that granular, for example matted structures emerge. Very good granulate formation is achieved by adding glue, so that even difficult-to-granulate images -> lig raw material can be used as raw material. Furthermore, the risk of washing out is reduced by adding glue.
  • a binder such as glue
  • the adsorption material according to the invention is a granular and porous granulate. Fibers of various sizes sometimes protrude from the granules. The outstanding fibers cause entanglement and at the same time guarantee a distance between the compact centers of the grains. Such a connection ensures that the adsorption material does not combine to form a tough layer, so that oxygen can penetrate the material.
  • Auxiliary fibers such as polyester or polyurethane can also be added to the cellulose-containing material. This allows the size or the chemical property of the adsorption material to be adjusted.
  • the adsorption material according to the invention can be used in a variety of ways. For example, it can be used for fertilization and soil improvement if it is mixed with organic residues such as sewage sludge, cooking oil, manure, manure or bio-compost and is subjected to partial rotting or composting in a conventional manner, for example in rents or drums.
  • the transfer is advantageously carried out in such a way that the mixture is subjected to pulsating pressing, as occurs, for example, when striking the mixture.
  • Such a treatment is particularly favorable for the formation of granules.
  • the treatment of the mixture with an arrangement in which two rotating flat bar arrangements arranged in a drum-shaped manner mesh with one another has proven to be particularly advantageous.
  • a pressure is briefly exerted on the mixing part located between the flat bars by the rotation of the drums. So that the pressure does not become too great, the distance between the combing flat bars should not be less than 1 cm.
  • a speed of the drums between 50 and 300 revolutions per minute has proven to be particularly advantageous.
  • the arrangement can also be designed in exactly the same way as the arrangement for the admixture of mineral substances.
  • Such double-vortex mixer heads with tail cock geometry alternating with straight mixer spokes of a second double-vortex operator guarantee an intimate constriction of the cellulose-containing material with organic and inorganic materials to form a granulate that does not separate independently, such as depot fertilizer or lime.
  • the adsorption material according to the invention for promoting the germination of seeds, also as nuts or fungal spores, by mixing them with the abovementioned soil conditioner or placing them under a layer formed therefrom and the substrate formed in this way is applied in a suitable manner.
  • the adsorption material according to the invention can be used for acid-binding fertilization in agriculture and forestry by applying the soil improver mentioned or the material obtained on the basis of the soil improver to promote the germination of seeds in accordance with a depot fertilizer on acidified soils.
  • an adsorbent By combining suitably modified fibers of different sizes and adding binders and lime, an adsorbent can be produced, which also achieves a buffering effect with regard to the pH value. It is therefore also suitable for long-term use, so that when mixed with nutrients and lime there is an effect of the greatly delayed release of the nutrients which is otherwise only achieved by so-called depot fertilizers. In particular, this also avoids the known damage to uses by dusty lime, such as in ants in the forest.
  • the adsorption material according to the invention can also be used, for example, in hydrophobicized form.
  • This can be done, for example, by coating the granules very thinly with an oil, such as, for example, silicone oil, so that a so-called polymer-analogous reaction of the Hydroxyl groups of the cellulose are carried out by methylation or esterification or the like.
  • a corresponding effect can also be achieved by mixing in plastic asers, such as polyester.
  • a suction strengthening can be achieved by admixing particularly swellable polymers or mineral or inorganic additives, such as gypsum.
  • the adsorption material according to the invention contains an addition of phosphoric acid esters, such as borax, it can be used as a flame-retardant building material.
  • phosphoric acid esters such as borax
  • it can be used in different ways. So it can be used in particular as an odor, chemical binder or insulation.
  • a raw material containing cellulose such as paper sludge, is strongly fibrillated.
  • An adjuvant containing cellulose such as straw or wood, is weakly fibrillated.
  • the strongly fibrillated raw material is mixed with the weakly fibrillated auxiliary.
  • Lime or an equivalent mineral is added to the mixture.
  • auxiliary fibers such as polyester, can be added to the mixture to influence the size or the chemical property of the end product.
  • the adsorbent obtained in this way can be handled well and is therefore easy to transport to a place of use. At the place of use, the adsorbent is intimately mixed with the liquid or sludge to be bound.
  • Usage components to be incorporated, such as seeds, can also be added to the adsorbent mixed with the liquid or the sludge.
  • Granules are formed by absorbing the liquid or sludge.
  • the granules can optionally be stored in a pack.
  • An end product obtained in this way on the basis of an adsorption material according to the invention can be, for example, a fertilizer, depot limescale, erosion felt or seed carrier.

Abstract

L'invention concerne un matériau d'adsorption pour lier des fluides qui comprend un matériau contenant de la cellulose sous forme fibrillaire. Un procédé de production dudit matériau d'adsorption se caractérise en ce que les fibres de cellulose sont soumises à un traitement par battage sans compression à des fins d'étirage ou à un traitement de coupe.
PCT/DE1996/000162 1995-02-02 1996-02-02 Materiau d'adsorption WO1996023584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995103247 DE19503247A1 (de) 1995-02-02 1995-02-02 Adsorptionsmaterial aus Zellulosefasern sowie Verfahren zu dessen Herstellung
DE19503247.0 1995-02-02

Publications (1)

Publication Number Publication Date
WO1996023584A1 true WO1996023584A1 (fr) 1996-08-08

Family

ID=7752911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000162 WO1996023584A1 (fr) 1995-02-02 1996-02-02 Materiau d'adsorption

Country Status (2)

Country Link
DE (1) DE19503247A1 (fr)
WO (1) WO1996023584A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268139A (zh) * 2011-05-30 2011-12-07 中国科学院理化技术研究所 一种树脂添加剂及其制备方法与应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2250339A1 (fr) * 1998-10-15 2000-04-15 D. Lee Manner Materiau absorbant a action retard

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984980A (fr) * 1972-10-27 1974-08-15
US4374702A (en) * 1979-12-26 1983-02-22 International Telephone And Telegraph Corporation Microfibrillated cellulose
JPS5939789A (ja) * 1982-08-27 1984-03-05 ダイセル化学工業株式会社 肥料造粒方法
US4474949A (en) * 1983-05-06 1984-10-02 Personal Products Company Freeze dried microfibrilar cellulose
EP0202472A1 (fr) * 1985-04-22 1986-11-26 Grain Processing Corporation Produit absorbant non laminé formé à sec
EP0515959A2 (fr) * 1991-05-23 1992-12-02 Hard Ag Granulés et procédé pour les obtenir
EP0612562A1 (fr) * 1993-02-19 1994-08-31 Hokkaido Procédé pour la préparation d'un adsorbant d'huile et dispositif pour sa préparation en continu

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984980A (fr) * 1972-10-27 1974-08-15
US4374702A (en) * 1979-12-26 1983-02-22 International Telephone And Telegraph Corporation Microfibrillated cellulose
JPS5939789A (ja) * 1982-08-27 1984-03-05 ダイセル化学工業株式会社 肥料造粒方法
US4474949A (en) * 1983-05-06 1984-10-02 Personal Products Company Freeze dried microfibrilar cellulose
EP0202472A1 (fr) * 1985-04-22 1986-11-26 Grain Processing Corporation Produit absorbant non laminé formé à sec
EP0515959A2 (fr) * 1991-05-23 1992-12-02 Hard Ag Granulés et procédé pour les obtenir
EP0612562A1 (fr) * 1993-02-19 1994-08-31 Hokkaido Procédé pour la préparation d'un adsorbant d'huile et dispositif pour sa préparation en continu

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 7514, Derwent World Patents Index; Class A97, AN 75-23046W, XP002004643 *
DATABASE WPI Week 8415, Derwent World Patents Index; AN 84-092320, XP002004642 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268139A (zh) * 2011-05-30 2011-12-07 中国科学院理化技术研究所 一种树脂添加剂及其制备方法与应用

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Publication number Publication date
DE19503247A1 (de) 1996-08-08

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