WO1988010246A1 - Procede pour la fabrication d'un ameliorant granuleux - Google Patents

Procede pour la fabrication d'un ameliorant granuleux Download PDF

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Publication number
WO1988010246A1
WO1988010246A1 PCT/DE1988/000365 DE8800365W WO8810246A1 WO 1988010246 A1 WO1988010246 A1 WO 1988010246A1 DE 8800365 W DE8800365 W DE 8800365W WO 8810246 A1 WO8810246 A1 WO 8810246A1
Authority
WO
WIPO (PCT)
Prior art keywords
water glass
substances
sprayed
glass solution
particles
Prior art date
Application number
PCT/DE1988/000365
Other languages
German (de)
English (en)
Inventor
Herbert Hans Wagner
Original Assignee
Deutsche Perlite Gmbh
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 Deutsche Perlite Gmbh filed Critical Deutsche Perlite Gmbh
Publication of WO1988010246A1 publication Critical patent/WO1988010246A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • C09K17/48—Organic compounds mixed with inorganic active ingredients, e.g. polymerisation catalysts
    • C09K17/50—Organic compounds mixed with inorganic active ingredients, e.g. polymerisation catalysts the organic compound being of natural origin, e.g. cellulose derivatives
    • 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
    • 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
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds

Definitions

  • the invention relates to a method for producing a granular soil improvement agent by treating particles made of a porous material with a water glass solution.
  • DE-C234 00 080 describes an agent for the treatment of soils, in particular forest soils, in order to deacidify them.
  • the problems associated with acidification of soils are described in detail in this DE-PS.
  • forest extinction is based not only on acidification of the forest soil, but also on the lack of fertilizers and substances that influence the metabolism of trees and plants, although it has been found that it is not simply sufficient, as with fertilization In agriculture, the missing substances are simply added to forest soils, but it is rather necessary that they are slowly released over periods of a few years and integrated into the complicated and sensitive soil and plant systems, so that a revitalization of environmentally damaged plants and soils, especially forest trees and forest soils is possible.
  • the invention has for its object to provide a process for the preparation of agents by means of which a revitalization of environmentally damaged plants and soils, in particular forest soils, is possible, these agents containing their active ingredients over the longest possible period in the biologically required amounts to deliver, at least over a period of 10 years.
  • the invention is based on the finding that when water glass solution is sprayed onto hot particles, this water glass partially coagulates from a porous material by abrupt water removal, as a result of which silica is precipitated.
  • the highly disperse silicic acid obtained depending on the temperature and spray conditions precipitates in the form of a polysilicic acid on the surface of the porous particles. This polysilicic acid has on its surface
  • Siloxane and silanol groups has a very large BET surface area of up to 280 m 2 / g.
  • This polysilicic acid has complex-forming and sorptive effects on or in the soil and prevents premature washing out of active substances with which the granules according to the invention can be loaded, and moreover represents a nature-identical substitute for the partially destroyed clay minerals, in particular on the intensive root layer.
  • the granules produced by the process according to the invention have the advantage that the neutralizing water glass or the polysilicic acid precipitated by heat coagulation and, if appropriate, additionally applied revitalizing substances adhere firmly to the porous carrier material.
  • porous inorganic substances such as expanded perlite or calcium silicate, are impregnated with water glass solutions and sprinkled for the treatment of acidic soils in the root area of the trees.
  • the water glass is slowly released to neutralize emissions-related acids.
  • the method according to the invention enables the production of a granular soil improvement agent which, owing to the precipitated silica in the soil, has the complex-forming and sorptive effects mentioned over an extremely long period of time, which are not brought about by the known agent.
  • the porous particles used preferably consist of porous inorganic particles, such as porous ceramic particles or foam glass particles, but in particular they consist of Peru teteilchen.
  • Perlite is a volcanic liparite or quartz porphyry glass with many small water inclusions. If this material is heated to over 1000'C, it expands to a light rock foam of 20 times its volume due to water evaporation.
  • the method according to the invention can be carried out in a particularly expedient manner if the water glass solution is sprayed onto the hot pearlite particles immediately after their expansion.
  • the water glass is preferably sprayed on as a concentrated solution, in particular in an amount of 10 to 22 liters per 100 liters of the porous particles.
  • the particles should preferably still have a temperature of 400 to 750 ° C.
  • the water glass solution which preferably consists of a sodium or potassium water glass solution
  • partial coagulation of the water glass and precipitation of polysilicic acid on the particles takes place, which after drying in combination with water glass is present, which is slowly released on or in the soil for neutralization, while the polysilicic acid exerts its effect indicated above.
  • a precipitant such as potassium sulfate may be added to the water glass solution prior to being sprayed onto the hot porous particles, which may increase the amount of polysilicic acid precipitated on the porous particles.
  • the process according to the invention also has the advantage that polysilicic acid is precipitated from the cheap base material, water glass, on the porous particles, which as such is a relatively expensive material and therefore would not be suitable for use on a large scale.
  • These granules produced by the process according to the invention can also be loaded with further revitalizing substances. If these are not temperature sensitive and tolerate the high temperatures of the hot porous particles, they can be sprayed on together with the water glass solution either as separate solutions, powders or granules, which can be used separately or dispersed in the water glass solution. However, if the substances are temperature-sensitive, the hot particles are expediently allowed to cool, for example to temperatures of 200 to 300 ° C., and the additional substances in the form of solutions, powders or granules are then sprayed onto these still moist particles.
  • additional substances can are applied to the granulate particles in succession or in the form of mixtures in the application form mentioned and bond firmly to the finished granules produced in accordance with the invention. Since on the one hand water glass is sparingly water-soluble and on the other hand the precipitated polysilicic acids have a complexing and sorptive effect, these additional substances are only slowly released in the desired manner on or in the soil, so that they can develop their effect in a metered form over longer periods of time. The delayed release can also be promoted in that the additional substances applied are provided with a protective colloid, which can consist, for example, of water glass, which also serves as a binder and dissolution delay agent.
  • a protective colloid which can consist, for example, of water glass, which also serves as a binder and dissolution delay agent.
  • Additional revitalizing substances include dolomite, phosphates, humic acids, growth substances, molasses, and co-precipitated silica and magnesium carbonate.
  • the dolomite is preferably used in a particle size of up to 0.5 mm and should have a minimum magnesium carbonate content of 40% by weight. It is mainly used for gentle buffering of acidified soils and for long-term supply with calcium and magnesium.
  • Humic acids or their salts such as potassium or sodium salts, serve as growth substances and soil improvers for structurally weak soils or soils with low exchange.
  • Humic acid promotes the activity of soil organisms, including earthworms, is free from artificial additives, improves the soil structure directly by loosening heavy soils and indirectly by favoring the production of bacterial adhesives, which bind fine particles to crumbs, and, like silica, also increases it Soil water capacity through direct binding of water to the organic substance or indirectly through structural improvement.
  • humic acid and its salts are also able to store nutrients on their surface in an exchangeable form, which is particularly important for low-clay soils.
  • humic acid and the aforementioned polysilicic acid ensure that the soil can survive dry periods without damage.
  • Kinetin (6-furfurylaminopurine) may be mentioned as growth substances. These growth substances remedy metabolic disorders, especially in trees. Kinetin, which belongs to the kinine family, is one of the most important key substances in the cell biology of plants. It is thermally stable (F. 269 to 271 ° C) and is therefore very suitable for producing the granules according to the invention. late. In particular, it promotes fine rooting of trees and rooting of cuttings, which is important when carrying out reforestation programs.
  • Kinetin can be used especially in combination with indole acetic acid, which is a growth accelerator, and in this combination promotes a slow, i.e. does not grow too quickly and favors the metabolic conditions, thereby preventing nutrient loss and premature exhaustion of crops such as trees.
  • Kinetin also promotes plant cell division and prevents premature aging of plant parts and improves the transfer of photosynthetic products from the leaves and needles to the reserve organs.
  • kinetin In general, very small amounts of kinetin are sufficient to return the trees to their healthy metabolic function without damage in the long term. This effect is achieved in particular when kinetin is embedded in a complex composite of substances such as polysilicic acid and sugars, and this is possible when using the granules according to the invention.
  • potassium phosphate preferably tetrapotassium pyrophosphate
  • phosphate is used as the phosphate in order to supply the soil with the nutrient elements potassium and phosphorus. So that these elements are not washed out of the ground and their mobility is slowed down, it is also expedient if these phosphates are held by the polysilicic acid and released only slowly.
  • the phosphates facilitate the liquefaction of the spray compound and thus enable easy spraying onto the hot porous particles.
  • Molasses ie sugar molasses, contains about 50% sugar in addition to betaine, dextrin, lactic acid and amino acids and is therefore extremely nitrogen-rich. She practices a bio catalytic function especially related to
  • Copper, iron, manganese, magnesium, zinc, cobalt, boron and molybdenum, in particular, are possible as complexed trace elements, which are available in exchangeable form for the application of soil and leaves.
  • EDTA ethylenediaminetetraacetic acid
  • Complexing agents are in particular ethylenediaminetetraacetic acid (EDTA) for these trace elements, the mobility of which can also be slowed down by the polysilicic acid present in the granules according to the invention, since the trace elements are also to be released only slowly and in metered form.
  • Trace elements are important because they have been lost in over-acidified soils due to leaching or when liming soils using, for example, cottage limes, which have a high calcium oxide content, are immobilized and are therefore no longer available for the plants.
  • Another component that can be applied to the granules produced according to the invention consists of co-precipitated silica and magnesium carbonate. In addition to the drying effect, these substances also exert the effects described above and in particular prevent washing out of the active ingredients and nutrients.
  • a combination of additional active substances in the form of granules can also be applied to the granules produced by the ancestor according to the invention in still moist form.
  • Growth substances for example kinetin, and potassium phosphate evaporate gently by spraying to a solid, free-flowing granulate, whereupon these granules are applied to the still moist granules produced according to the invention and, after drying, firmly bond to them.
  • these additional substances are preferably used in the following quantitative ranges:
  • a concentrated cauliflower glass solution with a solids content of 25% by weight in an amount of 600 kg (approx. 4801) is sprayed onto this hot perlite with rapid stirring using spray nozzles or pipe slot pressure sprinklers.
  • dolomite flour (bulk density approx
  • a mixture of 70 kg of magnesium carbonate and 45 kg of silica is then added with the stirrer upright, followed by the addition of 12 kg of trace elements (manganese, magnesium, zinc, cobalt, boron, molybdenum, copper, iron) bound with ethylenediaminetetraacetic acid. Then the mixture is slowly stirred at a temperature of 100 ° C.
  • the free-flowing product obtained is packaged and spread in quantities of 1.5 to 3 tons per hectare of soil and has a duration of action of at least 10 years.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Soil Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

Procédé de fabrication d'un améliorant granuleux par traitement de particules provenant d'une matière poreuse avec une solution de silicate de potassium, et utilisation.
PCT/DE1988/000365 1987-06-25 1988-06-16 Procede pour la fabrication d'un ameliorant granuleux WO1988010246A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3721012A DE3721012C1 (de) 1987-06-25 1987-06-25 Verfahren zur Herstellung eines granulatfoermigen Bodenverbesserungsmittels durch Behandeln von Teilchen aus einem poroesen Material mit einer Wasserglasloesung und Verwendung
DEP3721012.2 1987-06-25

Publications (1)

Publication Number Publication Date
WO1988010246A1 true WO1988010246A1 (fr) 1988-12-29

Family

ID=6330289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000365 WO1988010246A1 (fr) 1987-06-25 1988-06-16 Procede pour la fabrication d'un ameliorant granuleux

Country Status (2)

Country Link
DE (1) DE3721012C1 (fr)
WO (1) WO1988010246A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619359A2 (fr) * 1993-04-08 1994-10-12 Otavi Minen Ag Composition pour améliorer les sols et procédé de sa production
GB2297547A (en) * 1995-02-02 1996-08-07 Robert Irvine A plant growth support medium
AT407154B (de) * 1994-10-13 2001-01-25 Kandler Ewald Isolier- und ausgleichsschüttungsmasse, insbesondere für gefälledämmungen auf flachdächern
EP1296555A2 (fr) * 2000-07-03 2003-04-02 NFT Industries, LLC Produits agricoles a liberation regulee et procedes de fabrication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8801459A (nl) * 1987-06-25 1989-01-16 Perlite Gmbh Strooigoed voor bodemverbetering.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904424A (en) * 1954-06-11 1959-09-15 Peerless Oil And Gas Company Agricultural product and method
DE1075643B (de) * 1960-02-18 Dipl Landw Ernst Seifert Celle und Heinz Lohmann Hamburg Klein flottbek Verfahren zur Herstellung von Düngemitteln
US3034882A (en) * 1959-07-06 1962-05-15 Jr Charles S Renwick Method of making a humus carrier for plant nutrients
US3172752A (en) * 1965-03-09 Article of manufacture for controlled release of an
FR1554809A (fr) * 1966-12-01 1969-01-24
FR2070731A1 (fr) * 1969-12-04 1971-09-17 Henkel & Cie Gmbh

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400080C2 (de) * 1984-01-03 1986-07-10 Herbert Hans 8900 Augsburg Wagner Behandlungsmittel für Böden

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075643B (de) * 1960-02-18 Dipl Landw Ernst Seifert Celle und Heinz Lohmann Hamburg Klein flottbek Verfahren zur Herstellung von Düngemitteln
US3172752A (en) * 1965-03-09 Article of manufacture for controlled release of an
US2904424A (en) * 1954-06-11 1959-09-15 Peerless Oil And Gas Company Agricultural product and method
US3034882A (en) * 1959-07-06 1962-05-15 Jr Charles S Renwick Method of making a humus carrier for plant nutrients
FR1554809A (fr) * 1966-12-01 1969-01-24
FR2070731A1 (fr) * 1969-12-04 1971-09-17 Henkel & Cie Gmbh

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619359A2 (fr) * 1993-04-08 1994-10-12 Otavi Minen Ag Composition pour améliorer les sols et procédé de sa production
EP0619359A3 (fr) * 1993-04-08 1995-02-15 Otavi Minen Ag Composition pour améliorer les sols et procédé de sa production.
AT407154B (de) * 1994-10-13 2001-01-25 Kandler Ewald Isolier- und ausgleichsschüttungsmasse, insbesondere für gefälledämmungen auf flachdächern
GB2297547A (en) * 1995-02-02 1996-08-07 Robert Irvine A plant growth support medium
GB2297547B (en) * 1995-02-02 1999-01-06 Robert Irvine A plant growth support medium
EP1296555A2 (fr) * 2000-07-03 2003-04-02 NFT Industries, LLC Produits agricoles a liberation regulee et procedes de fabrication
EP1296555A4 (fr) * 2000-07-03 2004-04-28 Nft Ind Llc Produits agricoles a liberation regulee et procedes de fabrication

Also Published As

Publication number Publication date
DE3721012C1 (de) 1988-04-28

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