Fluorosilicate Synthesis via Low-Temperature Heating
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Solution Overview
Problem
Current methods for synthesizing fluorosilicates and silicates, such as cuspidine and dicalcium sodium fluorosilicate, require high temperatures and are limited to small laboratory scales, making them costly and inefficient for industrial applications, particularly in the production of lubricating powders for steel casting and glass-ceramics.
Innovation Solution
A method involving the heating of a mixture of calcium, sodium, silicon, oxygen, and fluorine compounds between 600°C and 850°C to produce fluorosilicates and silicates, with specific compositional ranges, allowing for the formation of cuspidine and dicalcium sodium fluorosilicate, which can be used in lubricating powders and glass-ceramics, using accessible and cost-effective raw materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional high-temperature synthesis methods are used to produce fluorosilicates and silicates, then the products can be obtained with desired crystalline structure, but the production cost increases and scalability is limited
Solution Approach 1:
The patent changes the temperature parameter from conventional high-temperature (>1000°C) synthesis to a lower temperature range (600-850°C), while adjusting the chemical composition parameters of the starting mixture to compensate. This parameter change enables the same crystalline products (cuspidine and dicalcium sodium fluorosilicate) to be formed under milder, more economical conditions that are scalable to industrial production.
2Reliability
If high-temperature synthesis (>1000°C) is employed to form cuspidine and fluorosilicates, then the desired chemical compounds are produced, but the energy consumption increases and industrial applicability decreases
Solution Approach 1:
The invention changes the thermal parameter from high temperature (>1000°C) to moderate temperature (600-850°C), reducing energy consumption by more than 30%. The chemical composition of the starting materials is optimized to ensure that the desired fluorosilicates and silicates form reliably at these lower temperatures, maintaining product reliability while dramatically improving energy efficiency and industrial applicability.
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 method enables the scalable production of fluorosilicates and silicates under milder conditions, improving the efficiency and cost-effectiveness of lubricating powders for steel casting and enabling the production of functional glass-ceramics with enhanced properties.
Implementation Method 1
A method involving the heating of a mixture of calcium, sodium, silicon, oxygen, and fluorine compounds between 600°C and 850°C to produce fluorosilicates and silicates
Implementation Method 2
heating, at a temperature of between 600°C and 850°C, of a mixture of starting materials, said mixture comprising compounds of Ca, Na, Si, O and F, wherein the products of said method comprise cuspidine and/or dicalcium sodium fluorosilicate
Data Source
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AI summary
The present invention relates to a method for synthesizing fluorosilicates and silicates starting from low-cost raw materials and the use thereof in the sector of solid lubricants for metallurgical castings or glass-ceramics. In particular, the present invention relates to a method for synthesizing fluorosilicates and silicates comprising the cooking, at a temperature comprised between 600°C and 850°C, of a mixture of starting materials, said mixture comprising compounds of Ca, Na, Si, O and F, wherein the mixture of starting materials comprising compounds of Ca, Na, Si, O and F has the following ponderal composition, excluding loss by calcination: Ca (as CaO) 35%-55%, Na (as Na2O) 4%-25%, Si (as SiO2) 15%-45%, F 4%-20%, and wherein the products of said method comprise cuspidine and/or dicalcium sodium fluorosilicate.