ES2435103R1 - Waste treatment procedure - Google Patents

Waste treatment procedure Download PDF

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Publication number
ES2435103R1
ES2435103R1 ES201330871A ES201330871A ES2435103R1 ES 2435103 R1 ES2435103 R1 ES 2435103R1 ES 201330871 A ES201330871 A ES 201330871A ES 201330871 A ES201330871 A ES 201330871A ES 2435103 R1 ES2435103 R1 ES 2435103R1
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application
art
documents
date
phosphate
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ES201330871A
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Spanish (es)
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ES2435103A2 (en
ES2435103B1 (en
Inventor
George SNOECK
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Solvay SA
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Solvay SA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/06—Reclamation of contaminated soil thermally
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/004—Sludge detoxification
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C04B28/087—Phosphorus slags
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1325—Hazardous waste other than combustion residues
    • C04B33/1327—Hazardous waste other than combustion residues containing heavy metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Structural Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Procedimiento de tratamiento de desechos. Procedimiento para tratar un desecho que contiene metales pesados no inertizados, según el cual se introduce el primer desecho y un agente de fosfatación rico en fosfatos y/o fosfitos metálicos en un horno de calcinación, y después se calcina allí el primer desecho en presencia del agente de fosfatación.Waste treatment procedure. Procedure for treating a waste containing heavy non-inert metals, according to which the first waste and a phosphate agent rich in phosphates and / or metal phosphites are introduced into a calcination furnace, and then the first waste is calcined there in the presence of the phosphating agent

Claims (2)

OFICINA ESPAÑOLA DE PATENTES Y MARCAS SPANISH OFFICE OF THE PATENTS AND BRAND N.º solicitud: 201330871 Application no .: 201330871 ESPAÑA SPAIN Fecha de presentación de la solicitud: 12.06.2013 Date of submission of the application: 12.06.2013
INFORME SOBRE EL ESTADO DE LA TECNICA REPORT ON THE STATE OF THE TECHNIQUE
Fecha de prioridad: Priority Date:   
51 Int. Cl. : 51 Int. Cl.:
C02F11/00 (2006.01) C02F101/20 (2006.01) C02F11 / 00 (2006.01) C02F101 / 20 (2006.01)
DOCUMENTOS RELEVANTES RELEVANT DOCUMENTS
Categoría Category
56 Documentos citados Reivindicaciones afectadas 56 Documents cited Claims Affected
Y Y
ES 2253444 T3 (SOLVAY) 01.06.2006, páginas 2-6. 1-46 EN 2253444 T3 (SOLVAY) 01.06.2006, pages 2-6. 1-46
Y Y
WO 2007080179 A1 (SOLVAY et al.) 19.07.2007, resumen; ejemplos 1-3. 1-46 WO 2007080179 A1 (SOLVAY et al.) 07/19/2007, summary; Examples 1-3. 1-46
Y Y
US 5860908 A (FORRESTER KEITH EDWARD) 19.01.1999, columnas 2-4; ejemplo 1. 1-46 US 5860908 A (FORRESTER KEITH EDWARD) 19.01.1999, columns 2-4; Example 1. 1-46
Y Y
ES 2244105 T3 (COMMISSARIAT ENERGIE ATOMIQUE) 01.12.2005, reivindicaciones. 1-46 EN 2244105 T3 (COMMISSARIAT ENERGIE ATOMIQUE) 01.12.2005, claims. 1-46
Categoría de los documentos citados X: de particular relevancia Y: de particular relevancia combinado con otro/s de la misma categoría A: refleja el estado de la técnica O: referido a divulgación no escrita P: publicado entre la fecha de prioridad y la de presentación de la solicitud E: documento anterior, pero publicado después de la fecha de presentación de la solicitud Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application
El presente informe ha sido realizado • para todas las reivindicaciones • para las reivindicaciones nº: This report has been prepared • for all claims • for claims no:
Fecha de realización del informe 17.01.2014 Date of completion of the report 17.01.2014
Examinador M. Ojanguren Fernández Página 1/4 Examiner M. Ojanguren Fernández Page 1/4
INFORME DEL ESTADO DE LA TÉCNICA REPORT OF THE STATE OF THE TECHNIQUE Nº de solicitud: 201330871 Application number: 201330871 Documentación mínima buscada (sistema de clasificación seguido de los símbolos de clasificación) C02F Bases de datos electrónicas consultadas durante la búsqueda (nombre de la base de datos y, si es posible, términos de Minimum documentation sought (classification system followed by classification symbols) C02F Electronic databases consulted during the search (name of the database and, if possible, terms of búsqueda utilizados) INVENES, EPODOC, WPI search used) INVENES, EPODOC, WPI Informe del Estado de la Técnica Página 2/4 State of the Art Report Page 2/4 OPINIÓN ESCRITA WRITTEN OPINION Nº de solicitud: 201330871 Application number: 201330871 Fecha de Realización de la Opinión Escrita: 17.01.2014 Date of Completion of Written Opinion: 01.17.2014 Declaración Statement
Novedad (Art. 6.1 LP 11/1986) Novelty (Art. 6.1 LP 11/1986)
Reivindicaciones Reivindicaciones 1-46 SI NO Claims Claims 1-46 IF NOT
Actividad inventiva (Art. 8.1 LP11/1986) Inventive activity (Art. 8.1 LP11 / 1986)
Reivindicaciones Reivindicaciones 1-46 SI NO Claims Claims 1-46 IF NOT
Se considera que la solicitud cumple con el requisito de aplicación industrial. Este requisito fue evaluado durante la fase de examen formal y técnico de la solicitud (Artículo 31.2 Ley 11/1986). The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986). Base de la Opinión.-  Opinion Base.- La presente opinión se ha realizado sobre la base de la solicitud de patente tal y como se publica. This opinion has been made on the basis of the patent application as published. Informe del Estado de la Técnica Página 3/4 State of the Art Report Page 3/4 OPINIÓN ESCRITA WRITTEN OPINION Nº de solicitud: 201330871 Application number: 201330871 1. Documentos considerados.-  1. Documents considered.- A continuación se relacionan los documentos pertenecientes al estado de la técnica tomados en consideración para la realización de esta opinión. The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.
Documento Document
Número Publicación o Identificación Fecha Publicación Publication or Identification Number publication date
D01 D01
ES 2253444 T3 (SOLVAY) 01.06.2006 ES 2253444 T3 (SOLVAY) 06.06.2006
D02 D02
WO 2007080179 A1 (SOLVAY et al.) 19.07.2007 WO 2007080179 A1 (SOLVAY et al.) 07/19/2007
D03 D03
US 5860908 A (FORRESTER KEITH EDWARD) 19.01.1999 US 5860908 A (FORRESTER KEITH EDWARD) 19.01.1999
D04 D04
ES 2244105 T3 (COMMISSARIAT ENERGIE ATOMIQUE) 01.12.2005 EN 2244105 T3 (COMMISSARIAT ENERGIE ATOMIQUE) 01.12.2005
2. Declaración motivada según los artículos 29.6 y 29.7 del Reglamento de ejecución de la Ley 11/1986, de 20 de marzo, de Patentes sobre la novedad y la actividad inventiva; citas y explicaciones en apoyo de esta declaración  2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement El objeto de la presente invención es un procedimiento para tratar un desecho que tiene metales pesados no inertizados que consiste en introducirlo en un horno de calcinación en presencia de un agente de fosfatación que comprende una sales de fósforo de al menos un metal distinto de un metal pesado, que responden a las fórmulas S1, S2 o S3 referentes a grupos mono y polifosfatos, polimetafosfatos y mono y polifosfitos y eventualmente al menos un ácido de fórmula A1 o A2 derivado del fósforo. En reivindicaciones dependientes se especifica que la sal se elige más concretamente entre ortofosfato de calcio, monohidrogenofosfato de calcio, dihidrogeno fosfato de calcio, fosfato tricálcico, las whitlockitas y las apatitas. The object of the present invention is a process for treating a waste having non-inertized heavy metals consisting of introducing it into a calcination furnace in the presence of a phosphating agent comprising a phosphorus salts of at least one metal other than a metal. heavy, which respond to formulas S1, S2 or S3 concerning mono and polyphosphate, polymetaphosphate and mono and polyphosphite groups and possibly at least one acid of formula A1 or A2 derived from phosphorus. In dependent claims it is specified that the salt is more specifically chosen from calcium orthophosphate, calcium monohydrogen phosphate, calcium dihydrogen phosphate, tricalcium phosphate, whitlockites and apatites. El documento D1, citado por el solicitante, divulga un procedimiento de inactivación de lodos que contienen metales pesados y provienen de la expurgación de vías navegables, que consiste en añadir ácido fosfórico antes de la calcinación del lodo y posteriormente dicho producto de calcinación se mezcla con un ligante hidráulico. Document D1, cited by the applicant, discloses a sludge inactivation process that contains heavy metals and comes from the expulsion of waterways, which consists of adding phosphoric acid before the calcination of the sludge and subsequently said calcination product is mixed with a hydraulic binder. El documento D2, también citado por el solicitante, divulga un procedimiento para el tratamiento de residuos que contienen metales pesados que comprende la adición de ácido fosfórico al residuo, la formación de una espuma y la posterior calcinación de la mezcla. En concreto en los ejemplos se divulga el tratamiento de un primer desecho proveniente de residuos de automóviles con ácido fosfórico y otros compuestos que forman una espuma que es calcinada. El producto obtenido en este proceso se añade a un segundo desecho proveniente del dragado de vías navegables al que posteriormente se somete a una fosfatación con ácido fosfórico y calcinación. Document D2, also cited by the applicant, discloses a process for the treatment of residues containing heavy metals comprising the addition of phosphoric acid to the residue, the formation of a foam and the subsequent calcination of the mixture. Specifically in the examples the treatment of a first waste from automobile waste with phosphoric acid and other compounds that form a foam that is calcined is disclosed. The product obtained in this process is added to a second waste from the dredging of inland waterways which is subsequently subjected to phosphoric acid phosphation and calcination. La única diferencia por tanto entre el procedimiento de la presente solicitud y los documentos D1 y D2 del estado de la técnica es el uso de una sal de fosfato como agente de fosfatación para la inmovilización de metales pesados en vez del ácido fosfórico. El problema técnico que subyace de la presente invención es la provisión de un procedimiento para el tratamiento de desechos que contienen metales pesados con un nuevo agente de fosfatación y la solución propuesta por el solicitante es la utilización de un agente de fosfatación a base de sales de fosfato o rocas fosfatadas como las apatitas entre otros. The only difference, therefore, between the process of the present application and documents D1 and D2 of the prior art is the use of a phosphate salt as a phosphating agent for the immobilization of heavy metals instead of phosphoric acid. The underlying technical problem of the present invention is the provision of a method for the treatment of wastes containing heavy metals with a new phosphating agent and the solution proposed by the applicant is the use of a phosphating agent based on salts of phosphate or phosphate rocks like apatites among others. Sin embargo dicha solución ya ha sido propuesta en el documento D3, en el cual se divulga el uso de rocas fosfatadas y polifosfato de sodio con objeto de inmovilizar metales pesados como el plomo en un procedimiento para el tratamiento de cenizas de combustión de residuos con contenidos altos de metales pesados (ver ejemplo 1) . Y también en el documento D4 que divulga el uso de sales de fosfato mono, di o tricálcico, o apatitas para la estabilización de residuos con metales de tipo radiactivo (ver ejemplos). Por lo tanto resultaría obvio para un experto en la materia probar la utilización de un agente de fosfatación como los divulgados en los documentos D3 y D4 para la inmovilización de metales pesados en un procedimiento de tratamiento de desechos con metales pesados. Por lo tanto, a la vista de estos documentos, las reivindicaciones 1 a 46 de la presente solicitud carecen de actividad inventiva (Art. 8.1 LP). However, this solution has already been proposed in document D3, which discloses the use of phosphate rocks and sodium polyphosphate in order to immobilize heavy metals such as lead in a procedure for the treatment of combustion ashes of residues with contents heavy metal heights (see example 1). And also in document D4 which discloses the use of mono, di or tricalcium phosphate salts, or apatites for the stabilization of residues with radioactive type metals (see examples). Therefore, it would be obvious to one skilled in the art to test the use of a phosphating agent such as those disclosed in documents D3 and D4 for the immobilization of heavy metals in a process for treating heavy metal wastes. Therefore, in view of these documents, claims 1 to 46 of the present application lack inventive activity (Art. 8.1 LP). Informe del Estado de la Técnica Página 4/4 State of the Art Report Page 4/4
ES201330871A 2012-06-15 2013-06-12 Waste treatment procedure Expired - Fee Related ES2435103B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP12172295 2012-06-15
EP12172295 2012-06-15
EP12172296 2012-06-15
EP12172296 2012-06-15

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ES2435103A2 ES2435103A2 (en) 2013-12-18
ES2435103R1 true ES2435103R1 (en) 2014-01-27
ES2435103B1 ES2435103B1 (en) 2014-10-08

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BE (1) BE1024034B1 (en)
ES (2) ES2435103B1 (en)
FR (2) FR2991889A1 (en)
NL (2) NL2010974C2 (en)

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CN109158401A (en) * 2018-07-24 2019-01-08 广元揽山环保科技有限公司 Utilize the method for tunnel brick kiln Heat Treatment house refuse carbonization and sludge drying
CN110790542B (en) * 2019-12-09 2022-04-01 北京矿冶科技集团有限公司 Baking-free brick prepared from copper, lead and zinc smelting wastewater sludge and preparation method thereof
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