Titanium Compounds for Catalytic Glass Surfaces

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current methods for producing catalytically active surfaces in glass and ceramic processing are complex, expensive, and require the use of fine TiO2 particles, which have limitations in photocatalytic activity and safety concerns, while existing solutions for improving catalytic and photocatalytic properties are costly and labor-intensive.

Innovation Solution

The use of titanium-containing minerals, solid titanates, zirconates, zirconium silicates, aluminum titanates, and zirconium aluminotitanates as solid compounds or mixtures, added to ceramic or glass compositions, which are processed conventionally without the need for laborious solution preparation, enabling the creation of catalytically and photocatalytically active surfaces without significant changes in optical properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fine TiO2 particles are used to produce catalytically active surfaces, then photocatalytic activity is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvephotocatalytic activityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent changes the physical state parameter of titanium compounds from fine particulate form to solid compound form. This parameter change eliminates the need for complex solution preparation while maintaining catalytic activity, as the solid compounds can be directly incorporated into ceramic and glass compositions during conventional processing.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces expensive fine TiO2 particles with more economical solid titanium compounds such as titanium-containing minerals, solid titanates, zirconates, and zirconium silicates. These alternative materials achieve comparable photocatalytic effects at lower cost and with simpler processing.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Reliability

If fine TiO2 particles are used to produce catalytically active surfaces, then photocatalytic activity is improved, but production cost increases

Engineering Contradiction:
Improvephotocatalytic activityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent substitutes costly fine TiO2 particles with inexpensive solid titanium compounds including naturally occurring minerals and industrial byproducts. This substitution maintains the desired photocatalytic functionality while significantly reducing material costs and eliminating the need for expensive solution preparation processes.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent changes the form parameter from fine particles requiring solution preparation to solid compounds suitable for direct incorporation. This parameter change eliminates labor-intensive processing steps and reduces overall production costs while preserving catalytic performance.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If fine TiO2 particles are used to produce catalytically active surfaces, then catalytic properties are improved, but process complexity increases

Engineering Contradiction:
Improvecatalytic propertiesVSAvoidprocess complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent changes the physical form parameter from fine particles to solid compounds, which fundamentally simplifies the processing workflow. The solid compounds can be directly mixed into ceramic and glass compositions during conventional manufacturing without requiring separate solution preparation, filtration, or drying steps.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The solid titanium compounds serve multiple functions simultaneously: they provide catalytic activity, act as fluxes during firing, and integrate into the base composition without requiring separate processing steps. This self-service approach eliminates the need for complex multi-step solution preparation processes.

Inventive Principle:
Principle #25Self-service

4Ease of manufacture

If solid titanium compounds are used instead of fine TiO2, then manufacturing simplicity is improved, but photocatalytic activity may be reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidphotocatalytic activity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent employs composite material strategies by combining solid titanium compounds with ceramic and glass base compositions. The titanium compounds undergo phase transformations during firing to form catalytically active phases that maintain photocatalytic activity. The composite structure allows the solid compounds to contribute both structural and functional properties.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent utilizes phase transitions of titanium compounds during the firing process. The solid titanium-containing compounds undergo phase changes at elevated temperatures to form crystalline phases with high catalytic activity, such as rutile or anatase structures, thereby maintaining photocatalytic functionality despite the initial solid compound form.

Inventive Principle:
Principle #36Phase transitions

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for the cost-effective and simplified production of catalytically and photocatalytically active surfaces with enhanced properties, such as improved pollutant degradation and surface hardness, while avoiding the use of fine TiO2 and maintaining optical properties, thus overcoming the limitations of existing methods.

Implementation Method 1

under the process-related temperature influence, these are apparently converted into the catalytically active, complex species through melting phase and/or sintering reactions

Methodology Applied
Scientific EffectPhase transformation: Phase Change

Implementation Method 2

under the process-related temperature influence, these are apparently converted into the catalytically active, complex species through melting phase and/or sintering reactions

Methodology Applied
Scientific EffectSintering: Sintering

Implementation Method 3

catalytically active surfaces, in particular a photocatalytically active surface

Methodology Applied
Scientific EffectPhotocatalysis: Photo-oxidation

Data Source

PatentEP3819281A1Use of titanium compounds
Publication Date: 2021.05.12 N TEC GMBH
  • EP3819281A1 patent drawingFigure 1~5
  • EP3819281A1 patent drawingFigure 6~11
  • EP3819281A1 patent drawingFigure 12~15

AI summary

The present invention relates generally to the use of at least one compound from the group consisting of a titanium-containing mineral, a solid titanate, a titanium silicate, a zirconate, a zircon silicate, an aluminum titanate, a zircon titanate and a zircon aluminatitanate, or a solid composition or mixture thereof prepared from these for producing catalytically active surfaces, and to products resulting from this use.