exported
necessary
filter press
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Filterpress
Generated on 2026-04-16
Natural Language Definition
EN
A filter press is a filter that applies mechanical compression force to enhance the separation of substances through a pressurized filtration process.
PT-BR
Uma prensa filtrante é um filtro que aplica força de compressão mecânica para melhorar a separação de substâncias através de um processo de filtração pressurizada.
Formal Axioms
Semi-formal (Aristotelian)
Every filter press is a filter that has a pressure mechanism as part and participates in mechanical compression processes.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(FilterPress(x) → Filter(x) ∧ ∃p(PressureMechanism(p) ∧ hasComponentPartAtAllTimes(x,p)) ∧ ∃proc(MechanicalCompressionProcess(proc) ∧ participatesIn(x,proc)))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: FilterPress
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-08"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000194 rdf:type owl:Class ; # FiltrationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000510 # FiltrationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000510 # FiltrationProcess
] ;
rdfs:label "filtration function"@en ;
rdfs:label "função de filtração"@pt-br .
### Process type
:COPI_0000510 rdf:type owl:Class ; # FiltrationProcess
rdfs:subClassOf :COPI_0000006 ; # MechanicalSeparation
rdfs:label "filtration process"@en ;
rdfs:label "processo de filtração"@pt-br .
:COPI_0000006 rdf:type owl:Class . # MechanicalSeparation
:COPI_0000510 # FiltrationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000040 # PortionOfSolid
] .
### Equipment universal: FilterPress
:COPI_0000268 rdf:type owl:Class ; # FilterPress
rdfs:subClassOf :COPI_0000081 ; # Filter
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000194 # FiltrationFunction
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasComponentPartAtAllTimes ;
owl:someValuesFrom :COPI_0000725 # FilterMedium
] ;
rdfs:label "filter press"@en ;
rdfs:label "prensa filtrante"@pt-br ;
iof-av:naturalLanguageDefinition "A filter press is a filter that applies mechanical compression force to enhance the separation of substances through a pressurized filtration process."@en ;
skos:definition "A filter press is a filter that applies mechanical compression force to enhance the separation of substances through a pressurized filtration process."@en ;
iof-av:naturalLanguageDefinition "Uma prensa filtrante é um filtro que aplica força de compressão mecânica para melhorar a separação de substâncias através de um processo de filtração pressurizada."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every filter press is a filter that has a pressure mechanism as part and participates in mechanical compression processes."@en ;
iof-av:firstOrderLogicAxiom "∀x(FilterPress(x) → Filter(x) ∧ ∃p(PressureMechanism(p) ∧ hasComponentPartAtAllTimes(x,p)) ∧ ∃proc(MechanicalCompressionProcess(proc) ∧ participatesIn(x,proc)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Using necessary conditions because this is classified as 'both' functional and constructive. The structural differentia (pressure mechanism and compression process) involves specific mechanical configurations that are harder to make sufficient under Open World Assumption without detailed engineering specifications."@en ;
skos:definition "[ISO 15926-4] A <FILTER PRESS> is a <FILTER> and a <PRESS(machine)> intended to separate substance through compression"@en ;
skos:definition "[SLB Glossary] A pressurized cell, fitted with a filter medium, used for evaluating filtration characteristics of a drilling fluid while it is either static or stirred."@en ;
skos:definition "[OnePetro] Usually a DE filter."@en .
:COPI_0000725 rdf:type owl:Class ; # FilterMedium
rdfs:subClassOf iof-core:MaterialArtifact ;
rdfs:label "meio filtrante"@pt-br ;
rdfs:label "filter medium"@en .
# Disjointness: FilterPress and Centrifuge
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000268 :COPI_0000225 ) . # FilterPress, Centrifuge
# Disjointness: FilterPress and Hydrocyclone
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000268 :COPI_0000301 ) . # FilterPress, Hydrocyclone
Axiomatization Decision Log
1
Identity-Giving Function
Function class
FiltrationFunction
⊑ DesignedFunction
Realized in
FiltrationProcess
⊑ MechanicalSeparation
The identity-giving function is FiltrationFunction - separating substances through filtration. This is already established for the parent class Filter in the enriched ontology, and all definitions consistently describe separation as the core purpose.
2
Genus Determination
Filter
Filter is the most specific appropriate superclass and is already enriched in our ontology with FiltrationFunction and Separator genus. The ISO 15926 definition explicitly states 'A FILTER PRESS is a FILTER', making this the direct genus. Filter is more specific than the generic Separator class.
3
Necessary Parts
| Part class | Parent | Relation |
|---|---|---|
| FilterMedium | MaterialArtifact | hasComponentPartAtAllTimes |
These parts are necessary for any filter press to perform pressurized filtration - the pressure mechanism enables compression, the filter cell contains the pressurized process, and the filter medium performs the separation.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— containing suspended solids or particles requiring separation
Outputs (O)
PortionOfFluid
— filtrate - clarified fluid
PortionOfSolid
— filter cake - concentrated solids
Transformation (T)
mechanical compression-enhanced separation of suspended solids from fluid through filter medium
Filter press transforms one mixed fluid stream into separate liquid and solid streams through mechanical compression, distinguishing it from passive filtration processes.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Using necessary conditions because this is classified as 'both' functional and constructive. The structural differentia (pressure mechanism and compression process) involves specific mechanical configurations that are harder to make sufficient under Open World Assumption without detailed engineering specifications.
Disjointness Axioms
centrifuge
hydrocyclone
C4: centrifuge, hydrocyclone. Filter press uses mechanical compression through a filter medium, while centrifuge uses rotational force and hydrocyclone uses fluid dynamics - these are incompatible separation mechanisms.
Cross-Standard Observations
ISO 15926 provides the most complete definition emphasizing dual nature as filter and press. SLB focuses on drilling fluid applications with evaluation/testing context. OnePetro reference to 'DE filter' (diatomaceous earth) suggests specific filtration medium subtype.
