WO2001046087A2 - Düngemittel, ionenaustauscher sowie verfahren zu ihrer herstellung - Google Patents
Düngemittel, ionenaustauscher sowie verfahren zu ihrer herstellung Download PDFInfo
- Publication number
- WO2001046087A2 WO2001046087A2 PCT/DE2000/004599 DE0004599W WO0146087A2 WO 2001046087 A2 WO2001046087 A2 WO 2001046087A2 DE 0004599 W DE0004599 W DE 0004599W WO 0146087 A2 WO0146087 A2 WO 0146087A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ion
- functional groups
- fertilizer
- substance
- structures
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/19—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/13—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/016—Modification or after-treatment of ion-exchangers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Definitions
- Fertilizers with their most important ingredients nitrogen, phosphate, potash, whereby nitrogen plays the most important role here as the "engine” of plant growth, are indispensable for an economically working agriculture.
- nitrogen is predominantly obtained from air using energy-intensive compression using the Haber-Bosch process and is then available as mineral nitrogen.
- Mineral nitrogen is immediately available to the plant roots as soon as it is present in the soil or plant substrate. This type of mineral nitrogen forces exact time and quantity metering, since too much nitrogen is not absorbed by the plants and thus immediately escapes into the deeper layers of the earth and is therefore lost for the actual plant growth.
- An alternative to mineral fertilizers are organic fertilizers, in which the nitrogen is only released in a microbial environment, whereby microorganisms convert the organic substance containing nitrogen in small portions into nitrogen that can be used by plants.
- Organic fertilizers are primarily horn meal, bone meal, certain synthetically produced and natural ureas, but more recently, for example, also ground fruits such as peas, fruit kernels (grapes), press cakes from oil extraction, shell material from fruits (nuts), but also fibrous materials Stems or leaves of plants used.
- these newer organic fertilizers have such a low nitrogen content (up to 5% by weight) that they can only be mixed with higher-content substances of the first category or by mixing with or soaking in liquid minerals result in recognizable effective fertilizers.
- Another object of the present invention is to provide ion exchangers with an increased number of functional groups and / or structures capable of ion exchange and / or ion trapping compared to conventionally known ion exchangers.
- the fertilizer according to the invention as claimed in claim 1 is characterized by at least one biodegradable base body with functional groups and / or structures capable and / or capturing for ion exchange, on which ions which are directly or indirectly beneficial for plant growth, preferably nitrate, ammonium, phosphate, Magnesium and / or potassium ions are attached.
- the fertilizer according to the invention according to claim 2 is characterized by at least one soil-compatible basic body with functional groups and / or structures capable of and or capable of ion exchange, on which anions, preferably nitrate ions, which are directly or indirectly beneficial for plant growth, are attached.
- the fertilizer is used to fertilize plants.
- the inventive method for producing a fertilizer for plants contains the
- the ion exchanger according to the invention with functional groups and / or structures capable of ion exchange and / or ion binding is characterized in that the number of functional groups and / or structures capable of ion exchange and / or ion binding is increased by chemical conversion and / or by radiation chemical treatment ,
- This ion exchanger according to the invention is produced by, in the case of at least one substance with functional groups and / or structures capable of ion exchange and / or ion binding, the number of functional groups and / or structures capable of ion exchange and / or ion binding by chemical conversion and / or radiation chemical Treatment is increased.
- Wastewater treatment plants, biogas plants and the like Get out, and to those in question
- Bodies are docked via ion-exchanging and / or trapping substances.
- the invention not only provides improved fertilizers and ion exchangers, but it is also possible to achieve significant cost reductions in wastewater treatment, both in the running water treatment costs and in the investment volume.
- the invention offers the advantage that inexpensive starting materials or waste materials from agricultural and industrial production can be used.
- the ions that are docked onto the fertilizers according to the invention must either be those that are directly beneficial to plant growth, such as, for example, ammonium, potassium or magnesium ions, but they can also be ions that only become active after, for example provide microbial conversion beneficial ions for the growth of plants.
- the best-known example here is the nitrate ion, which is only available to plants after conversion into ammonium ion.
- the ions are charged organic compounds which, for example, only release ions which are beneficial for plants when they are biodegraded, or are at least partially converted into such ions.
- One of the decisive advantages of the fertilizers according to the invention is that, if appropriately designed, for example by means of selected urea types such as isobutylidene diurea, they also allow metered delivery of nitrogen components which are then gradually or continuously available to plants. This is already achieved, among other things, by the choice of the material composition and the design of the base body. Furthermore, due to the design and material composition of the body, predominantly as a capillary porous structure, there are already optimal conditions for the desired rapid or slow decomposition of the organic nitrogen components by the corresponding microflora of the soil.
- plannable bodies for example with integrated aggregate materials, with proportions such as carbamate nitrogen, phosphate and potash in them, meet the basic requirements of agriculture with the combination fertilizer that then results from the nitrate intake.
- they when applied, they can also have soil-improving properties due to humus-forming substances, such as cellulose. It has been shown to be particularly favorable when used after taking up nitrates from fluids that the nitrate fertilizers obtained in this way usually show the least release of N 0 in% of the fertilized nitrogen into the atmosphere; eg ⁇ 1% compared to conventional organic fertilizers.
- the possible combinations of the materials in the base bodies and the functional groups and / or structures, as well as the functional additives intended for certain areas of application, can be used, e.g. by varying the pH value, the selection of a wide variety of ingredients in fluids with respect to the preferred ion types. It is also possible to separate biomolecules such as proteins, nucleic acids, dyes and the like, or inorganic ones such as chromium ions, phosphate ions, chlorine ions.
- the additives can also be used for sterilization or disinfection, e.g. Realize over calcium hydroxide or potassium permanganate.
- the technical realization of the bodies for the necessary ion absorption can take the form of loose powder, foam, foamed natural or synthetic polymers cross-linked with natural polymers, compacted pellets, gels, granules, extruded strands, or in any other geometrical shape, also as, for example, an injection molded part, or also incorporated into fibrous biological or synthetic piles, in bulk, paper-like or as a textile structure, e.g. B. arranged as a mechanically processed flat fleece, as well as combinations of all such forms of representation.
- the composition is also dependent on the question of whether the ions are absorbed from drinking, waste water or industrial water. Porous and spatially global structures are preferred as the base body.
- base material a so-called base material
- functional support with functional groups and / or structures capable of or capturing ion exchange.
- further component in the form of organic and / or aggregate materials, usually consisting predominantly of fiber structures, plant components and / or their derivatives, and / or one or more inorganic materials such as, for example, clay (s), soil (s), Lava, clay mineral (s), feldspar, layered silicate (s), stone (s), stone powder (s), slag (s), metal (s) mineral (s) and / or molecular sieves.
- Descendants of fiber structures and plant components are e.g. to understand chemically modified fiber or plant components or individual components made of fibers or plants.
- An example of such a descendant is e.g. Lignin, e.g. occurs in large quantities in papermaking.
- Ion types available This applies in particular to the anions for phosphates, sulfates and chlorine; for the cations for calcium, gastric, potassium and sodium.
- a kind of cation exchange with such partially natural functional aggregate materials, such as laminate silicates such as bentonites, for example Ca ++ for trivalent heavy metal ions or Na + for water hardness Ca ++, etc.
- the body can also be supplemented with functional or partially stimulating, active ingredient-releasing additives, in particular because of the possible subsequent uses, e.g. Enzymes, surfactants or certain ureas for later faster or slower breaking of the basic body and / or by e.g. on the wall quality and thickness as well as on humidity or temperature, thus can be designed depending on the time, e.g. Microcapsules produced by sulfoethyl cellulose, with, for example, fungi, vitamins, sterilizing agents, plant hormones, insecticides, pesticides, fungicides, nematicides, or microorganisms in the capsules and / or filter bodies, as well as time-controlled functional elements and the like.
- functional or partially stimulating, active ingredient-releasing additives e.g. Enzymes, surfactants or certain ureas for later faster or slower breaking of the basic body and / or by e.g. on the wall quality and thickness as well as on humidity or temperature, thus can be designed depending on the time
- Aggregate materials and aggregates can be larger in volume than the actual base body.
- the further components which are contained in the fertilizer according to the invention in addition to the actual base body have the additional advantage that they can be chosen or designed so that they either deliver decomposition products containing active substance when they are biodegraded and / or serve as storage for active substances can.
- a fertilizer according to the invention which is based on a protein as the base body, will be microbially decomposed in the soil and itself act as a nitrogen source.
- Layered silicates as an example of inorganic additives are known, for example, that they themselves have a certain natural Have ion exchange or ion trapping property and can therefore also serve as an active ingredient storage.
- the base body preferably consists of a biologically compatible, usually degradable base material which is or is combined with the function carriers described later.
- the following are preferably used as the base material for the base body:
- lignin lignin derivatives, modified lignins (e.g. functionalized lignins); - polysaccharides, polysaccharide derivatives, modified polysaccharides, (functionalized polysaccharides);
- the molecular weights of the base materials can vary in a wide range from oligomeric to polymeric forms.
- the molecular weight distribution can be polydisperse.
- the function holder or the functionalizing groupings it can be one or more of the following basic exchange groups:
- - pyridine derivatives e.g. 4-vinyl pyridine, 2- (2aminoethyl) pyridine. et al .;
- Acrylamide derivatives e.g. Trimethylene ammonium propylacrylamide chloride, methylene bis aryl amide;
- Alkylamine derivative for example, quaternary polyethyleneimine, tetramethyldipopylenetriamine, methyldipropylenetriamine, NN'-dimenthylporpandiamine, N- Methylporpane diamine, polyethylene polyamine, substances with triethyl ammonium.
- Guanidine derivative e.g., N, N'-dicyclguanidine, N, N'-dicylclohexyl-N "-benzylguanidine, bis (benzylidenamino) guanidine, bis (poctyloxybenzylidenamino) -guanidine;
- Trialzole derivatives e.g. 3-amino-l, 2,4-triazole-modified resins
- the functional group or groups can be fixed by direct chemical reaction in and / or on the base bodies and / or bound to or in at least one of the possible further components or additive materials.
- crosslinkers or molecular weight expanders can be used.
- These materials preferably consist of one of the basic body materials mentioned, e.g. Lignin-based flocculants, such as from protein-based film formers.
- Crosslinkers can also be other bifunctional or polyfunctional compounds, preferably those used in the food sector, e.g. Glutaraldehyde.
- a particular advantage of the fertilizers according to the invention is that when designing the ion-exchanging or ion-trapping substances, the question of possible regenerability need not be addressed at all.
- the ion binding capacities can also be further increased according to the invention by means of radiation-chemical functionalization.
- the chemical conversion and the radiation chemical treatment can be applied cumulatively and in any suitable time sequence.
- the radiation-chemical treatment is carried out with a (starting) substance with a certain degree of ion-binding capacity, it was surprisingly found that an unexpected increase in the ion-binding capacity was found by irradiation with suitable rays, in particular with electromagnetic waves and with particle radiation.
- the radiation chemical treatment is carried out with a (starting) substance in the presence of suitable monomers or short-chain compounds, there is also surprisingly a marked increase in the ion-binding capacity of the treated substance.
- 4-vinylpyridine, dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate are examples of suitable monomeric compounds which are suitable for significantly increasing the anion binding capabilities of the (starting) substance.
- Dimethylallylammoniumchlorid, 2-methoxyacryloxyethyltrialkylammonium, trimethyl methacrylimide and trimethylamine-4-vinylbenzimide called.
- Acrylic acid and methacrylic acid may be mentioned here as examples of monomeric compounds which are suitable for significantly increasing the cation-binding capabilities of the (starting) substance.
- suitable short-chain compounds only the di-, tri- or tetra-functional urethane acrylates and the aliphatic urethane acrylates should be mentioned here.
- the biodegradability of the fertilizer or the ion exchanger is to be retained, it is advantageous if it binds predominantly momoner or short-chain compounds to the body. It has surprisingly been found that this is also the case with appropriate radiation-chemical treatment using electromagnetic Radiation or particle radiation, in particular using gamma rays, can be achieved. Surprisingly, it was also found here that by cleverly selecting monomers and / or short-chain compounds, mixed functionalizations for anions and cations can be achieved, ie surprisingly good amphoteric fertilizers or ion exchangers were obtained which could not previously be prepared by conventional means.
- the starting material and any monomers and / or short-chain compounds added play an important role in the choice of suitable radiation and its dosage.
- Due to the radiation chemical treatment e.g. Gamma radiation can increase the volume of the treated substance. Depending on the starting material, this can be quite advantageous, since the surface of the substance is thus increased overall and the surface available for ion exchange or for ion binding is also increased.
- a body for one of the preferred solutions from a needled mixture of flax and hemp fibers (which was chosen in the present example because of its different stability in a damp environment).
- an anchor group has been added, which enables these resins to be attached to the base material and thereby increase the ionic docking points.
- This anchor group preferably consists of an unsaturated structure, which can be prepared, for example, by N-alkylation of secondary amines with olefins and formaldehyde for the subsequent quaternization of the tertiary amine obtained by means of a radiation-chemical functionalization, predominantly with gamma rays. From the result, they have Groups for the docking of ions increased significantly and the absorption capacity of nitrates increased by 30-50% compared to a non-radiation-treated material.
- Example 2 In a second experiment, tests were carried out with fiber pellets and so-called cockroaches from hemp production, in which, in addition to the anion-binding resins, anchor groups for the functional resins, but by purely chemical reaction (e.g. aldehydes, via reactions to so-called Schiff bases).
- the additional docking points increased the absorption capacity by approx. 20% compared to those without anchor groupings.
- biocompatible or biodegradable base materials that have proven to be particularly suitable for the intended application are lignin products and proteins such as e.g. Gelatin, preferably also combinations of ligands and proteins.
- Lignin powder was impregnated with a quaternized methacrylate monomer and functionalized by radiation chemistry, then purified and introduced into a fluid to absorb the ions.
- the capacity uptake of these anions also depends on the content of the functionalized monomer.
- gelatin was impregnated with a quaternized methyl diethylbutylene amine and treated with radiation. A significant increase in the ion absorption capacity was also achieved here.
- lignin or protein e.g. by treatment with glutaraldehyde, e.g. as a coating for solid substrates such as clay minerals, cockroaches, straw fibers, sponges. These are first coated with proteins and fixed by crosslinking this coating with glutaraldehyde in order to subsequently functionalize them using radiation chemistry.
- glutaraldehyde e.g. as a coating for solid substrates such as clay minerals, cockroaches, straw fibers, sponges.
- Base material was impregnated with conventional radiation-chemically crosslinkable monomers without quaternary ammonium groups to increase and standardize the chemical reactivity, and then a quaternary compound was coupled via a group-specific coupling reaction.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU33595/01A AU3359501A (en) | 1999-12-22 | 2000-12-22 | Fertilizer, ion exchanger and method for the production thereof |
| DE10084011T DE10084011D2 (de) | 1999-12-22 | 2000-12-22 | Düngemittel, Ionenaustauscher sowie Verfahren zu ihrer Herstellung |
| EP00991550A EP1252123A2 (de) | 1999-12-22 | 2000-12-22 | Düngemittel, ionenaustauscher sowie verfahren zu ihrer herstellung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19962197.7 | 1999-12-22 | ||
| DE1999162197 DE19962197A1 (de) | 1999-12-22 | 1999-12-22 | Absorber, vorzugsweise Stoff zur Aufnahme und/oder zum Austausch von Ionen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001046087A2 true WO2001046087A2 (de) | 2001-06-28 |
| WO2001046087A3 WO2001046087A3 (de) | 2002-02-14 |
Family
ID=7933927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2000/004599 Ceased WO2001046087A2 (de) | 1999-12-22 | 2000-12-22 | Düngemittel, ionenaustauscher sowie verfahren zu ihrer herstellung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1252123A2 (de) |
| AU (1) | AU3359501A (de) |
| DE (2) | DE19962197A1 (de) |
| WO (1) | WO2001046087A2 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016077954A1 (en) * | 2014-11-17 | 2016-05-26 | East China University Of Science And Technology | Biopesticide compositions and methods for their preparation and use |
| CN109241607A (zh) * | 2017-09-27 | 2019-01-18 | 山东农业大学 | 基于相关向量机的配比变量施肥离散元模型参数标定方法 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311734A (zh) * | 2017-05-09 | 2017-11-03 | 天长市翔净蔬菜种植发展有限公司 | 一种泥胡菜的高产有机缓释肥 |
| CN107311735A (zh) * | 2017-05-09 | 2017-11-03 | 天长市翔净蔬菜种植发展有限公司 | 一种竹叶菜的高缓释有机复合肥 |
| CN107216187A (zh) * | 2017-05-09 | 2017-09-29 | 天长市翔净蔬菜种植发展有限公司 | 一种苤蓝的有机高产缓释肥 |
| CN107098751A (zh) * | 2017-05-09 | 2017-08-29 | 天长市翔净蔬菜种植发展有限公司 | 一种九层塔的高产高质有机缓释肥 |
| CN107118020A (zh) * | 2017-05-12 | 2017-09-01 | 天长市翔净蔬菜种植发展有限公司 | 一种马齿苋的高产缓释有机复合肥 |
| CN107311736A (zh) * | 2017-05-12 | 2017-11-03 | 天长市翔净蔬菜种植发展有限公司 | 一种黑芥高产高缓释性有机复合肥 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH410872A (de) * | 1959-12-28 | 1966-04-15 | Glaxo Group Ltd | Ionenaustauscher |
| SE329915B (de) * | 1965-04-02 | 1970-10-26 | Pharmacia Ab | |
| US3725528A (en) * | 1971-02-18 | 1973-04-03 | Yissum Res Dev Co | Quantitative ion exchange process for clay |
| FR2187804B2 (fr) * | 1972-06-09 | 1975-03-07 | Inst Textile De France | Cellulose echangeuse d'anions et son application au traitement de certaines eaux de rejet industrielles |
| JPS5622840B2 (de) * | 1972-09-09 | 1981-05-27 | ||
| DD133788A1 (de) * | 1977-12-02 | 1979-01-24 | Wolfgang Alber | Verfahren zur verwertung von lignin oder ligninhaltigem material |
| DE3048357A1 (de) * | 1980-12-20 | 1982-07-15 | Erbslöh & Co, Geisenheimer Kaolinwerke, 6222 Geisenheim | Verfahren zur herstellung eines anionenaustauschers und dessen verwendung |
| JPS5927752B2 (ja) * | 1981-03-09 | 1984-07-07 | 滋 古川 | 肥効促進剤製造方法 |
| DE3209224A1 (de) * | 1982-03-13 | 1983-09-15 | Basf Ag | Verfahren zur herstellung von unloeslichen, nur wenig quellbaren polymerisaten von basischen vinylheterocyclen und deren verwendung |
| DD280698A1 (de) * | 1983-03-16 | 1990-07-18 | Adw Ddr | Verfahren zur herstellung von ionenaustauschern auf cellulosebasis |
| JPH0659409B2 (ja) * | 1987-10-06 | 1994-08-10 | 義明 本里 | 架橋グルコマンナンイオン交換体 |
| GB9100276D0 (en) * | 1991-01-07 | 1991-02-20 | E J Godwin Peat Ind Limited | Plant growth medium |
| JPH0779593B2 (ja) * | 1991-03-18 | 1995-08-30 | 悦子 須郷 | 動物飼育用材料およびその製造方法 |
| DE19609864A1 (de) * | 1996-03-13 | 1997-09-18 | Basf Ag | Verfahren zur Herstellung von wasserlöslichen Copolymerisaten aus wenigstens einem wasserlöslichen N-Vinyllactam und wenigstens einem hydrophoben Comonomeren |
| US6048908A (en) * | 1997-06-27 | 2000-04-11 | Biopore Corporation | Hydrophilic polymeric material |
-
1999
- 1999-12-22 DE DE1999162197 patent/DE19962197A1/de not_active Withdrawn
-
2000
- 2000-12-22 WO PCT/DE2000/004599 patent/WO2001046087A2/de not_active Ceased
- 2000-12-22 AU AU33595/01A patent/AU3359501A/en not_active Abandoned
- 2000-12-22 EP EP00991550A patent/EP1252123A2/de not_active Withdrawn
- 2000-12-22 DE DE10084011T patent/DE10084011D2/de not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016077954A1 (en) * | 2014-11-17 | 2016-05-26 | East China University Of Science And Technology | Biopesticide compositions and methods for their preparation and use |
| CN109241607A (zh) * | 2017-09-27 | 2019-01-18 | 山东农业大学 | 基于相关向量机的配比变量施肥离散元模型参数标定方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3359501A (en) | 2001-07-03 |
| EP1252123A2 (de) | 2002-10-30 |
| DE10084011D2 (de) | 2002-11-07 |
| WO2001046087A3 (de) | 2002-02-14 |
| DE19962197A1 (de) | 2001-07-05 |
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