Basic Zinc Chloride Particulate Matter for Feed Additives
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Solution Overview
Problem
Existing methods for producing basic zinc chloride as a mineral feed additive result in small particle sizes, leading to fugitive dust and poor flowability, along with increased production costs and wastewater treatment challenges.
Innovation Solution
A method involving the preparation of basic zinc chloride particulate matter with larger particle sizes and sphere-like appearance, achieved through a process using ammonium chloride as an inducer and controlled pH and stirring conditions, ensuring good flowability and minimal wastewater discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid-solid phase synthesis or liquid-liquid phase synthesis is used to produce basic zinc chloride, then the chemical structure is stable and bioavailability is high, but the particle size is small leading to fugitive dust and poor flowability
Solution Approach 1:
The patent changes the physical and chemical parameters of the synthesis process, specifically controlling pH value (8.5-10.5), temperature (60-90°C), and using specific molar ratios of reactants to achieve optimal particle size (D10>100μm, D95>450μm) while maintaining the basic zinc chloride chemical structure and bioavailability
Solution Approach 2:
The patent utilizes phase transition during the synthesis process by controlling the precipitation conditions to form particles with specific size distribution. The controlled crystallization from liquid phase to solid phase, followed by proper drying, achieves the desired particle size range that prevents dust while maintaining chemical integrity
2Ease of operation
If particle size of basic zinc chloride is increased to reduce fugitive dust, then flowability improves, but production cost increases due to additional adhesives or organic inducers
Solution Approach 1:
The patent extracts and eliminates the need for expensive adhesives and organic inducers by optimizing the inorganic synthesis pathway. By controlling the precipitation and drying conditions, the patent achieves large particle size (D10>100μm, D95>450μm) directly from the synthesis process without requiring additional granulation steps or organic additives
Solution Approach 2:
The patent replaces expensive organic inducers and adhesives with inexpensive inorganic reagents and process control. The use of common chemicals like zinc chloride and controlled pH adjustment with inexpensive bases achieves the desired particle morphology at lower cost
3Stability of the object's composition
If basic zinc chloride is produced by existing methods, then the chemical structure is stable, but filtration and washing performances are poor due to small particle size
Solution Approach 1:
The patent optimizes synthesis parameters including pH (8.5-10.5), temperature (60-90°C), and reaction time to control particle growth. This results in particles with D10>100μm and D95>450μm that maintain chemical stability while achieving excellent filtration performance due to the larger particle size and reduced specific surface area
4Productivity
If conventional synthesis methods are used, then basic zinc chloride can be produced, but a large amount of fugitive dust is generated making the production environment adverse
Solution Approach 1:
The patent controls synthesis parameters to produce particles with D10>100μm and D95>450μm, which are large enough to prevent becoming fugitive dust. The optimized particle size distribution maintains production efficiency while eliminating the dust generation problem that plagues conventional methods
5Length of moving object
If organic inducers are added to synthesize large particles, then particle size increases, but wastewater treatment becomes more difficult
Solution Approach 1:
The patent extracts and eliminates organic inducers from the synthesis process, using only inorganic reagents and process control to achieve large particle size. This results in wastewater that is easier to treat and dispose of, removing the environmental burden associated with organic chemical residues
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
The method produces basic zinc chloride particulate matter with a large particle size distribution, excellent flowability, and reduced fugitive dust, while maintaining high zinc content and simplifying wastewater treatment, thus addressing the challenges of existing production methods.
Implementation Method 1
A method involving the preparation of basic zinc chloride particulate matter with larger particle sizes and sphere-like appearance, achieved through a process using ammonium chloride as an inducer and controlled pH and stirring conditions
Implementation Method 2
achieved through a process using ammonium chloride as an inducer and controlled pH and stirring conditions
Implementation Method 3
achieved through a process using ammonium chloride as an inducer and controlled pH and stirring conditions
Data Source
AI summary
A basic zinc chloride particulate matter and a preparation method therefor. The basic zinc chloride particulate matter mainly consists of basic zinc chloride particles. In the basic zinc chloride particulate matter, D10>100 μm, and D95>450 μm. The basic zinc chloride particles do not contain adhesives. The basic zinc chloride particles contained in the basic zinc chloride particulate matter are approximately spherical, and the basic zinc chloride particles with the particle diameter>500 μm in the basic zinc chloride particulate matter accounts for 1% or less of the total mass of the basic zinc chloride particulate matter.