One-Stage HTP Production via Rotating Flask Distillation
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Solution Overview
Problem
Existing methods for producing highly concentrated hydrogen peroxide (98%+) are inefficient due to frequent bumping issues in fractional vacuum distillation, requiring two-stage systems, and lack effective condenser control, leading to impurities and process prolongation.
Innovation Solution
A one-stage system for concentration and purification using a rotating flask at an angle with a stationary flask, an adiabatic fractionating column, and a condenser controlled by cooling liquid flow, along with an auxiliary condenser and electromagnetically controlled reflux valve, to manage evaporation and condensation efficiently, eliminating bumping and improving product purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fractional vacuum distillation is used to concentrate hydrogen peroxide to 98%+, then high purity is achieved, but frequent bumping occurs that prolongs the process and reduces efficiency
Solution Approach 1:
The patent applies dynamics by rotating the distillation flask during vacuum distillation. This rotational movement prevents the liquid from stagnating and forming large bubbles that cause bumping, thereby maintaining steady evaporation and improving process efficiency while achieving high purity hydrogen peroxide concentration of 98%+
Solution Approach 2:
The patent utilizes mechanical vibration through the rotation of the distillation flask to disrupt bubble formation and prevent bumping. The rotational motion creates continuous liquid movement that eliminates the conditions for sudden violent boiling, thus maintaining steady distillation progress and improving productivity without compromising purity
2Quantity of substance
If traditional vacuum distillation systems are used, then concentration is achieved, but two-stage systems are required which increase device complexity and process time
Solution Approach 1:
The patent merges the concentration and purification functions into a single integrated vacuum distillation system. By combining these operations in one stage with the rotating flask apparatus, the system eliminates the need for separate two-stage processing, thereby reducing device complexity and shortening overall process time while achieving 98%+ concentration
3Manufacturing precision
If conventional condensers are used without flow control, then condensation occurs, but impurities remain and process time increases
Solution Approach 1:
The patent implements feedback control by monitoring the cooling liquid flow rate through the condenser and adjusting it accordingly. This controlled feedback mechanism ensures optimal condensation conditions that effectively remove impurities while maintaining efficient process progression, thereby achieving high purity products without unnecessary time delays
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 significantly accelerates the hydrogen peroxide concentration process, achieving high purity (98%+) without bumping, reduces process time, and ensures efficient condenser operation, enhancing the stability and purity of the final product.
Implementation Method 1
fractional vacuum distillation performed with a suitable rectifying column
Implementation Method 2
The process is based on vacuum distillation and evaporation
Implementation Method 3
a condenser controlled by the flow rate of the cooling liquid
Implementation Method 4
efficient condenser operation
Implementation Method 5
the evaporation is carried out in a detachable evaporator
Implementation Method 6
heating means
Data Source
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AI summary
The invention relates to a one-stage system for concentration and purification of concentrated hydrogen peroxide, in particular for production of concentrated solution of HTP (High Test Peroxide) grade hydrogen peroxide of concentration of at least 98% for propulsion applications, comprising heating means, a water bath, a rotating flask with a drive in a sloping position at an angle from 105° to 140° with respect to the fractionating column, a condenser, a distillate receiver, characterised in that it additionally comprises a stationary flask (4) placed between the fractionating column (7) and the rotating flask (3) for placing the feedstock, and above the fractionating column (7) and before the condenser (10) it comprises a condenser controlled by the flow rate of the cooling liquid (8), and further behind the condenser (10) and before the stopcock (11) shutting off the main receiver (12) it comprises an auxiliary condenser (13) that from one side is connected to vacuum, and from the other side it is connected to an auxiliary receiver (15), whereas the fractionating column is an adiabatic fractionating column (7), and the final product is received from the flasks (3) and (4). Additionally, the invention comprises a method for production of concentrated solution of hydrogen peroxide, in particular of HTP (High Test Peroxide) grade of concentration of at least 98% for propulsion applications, in a system according to the invention, in which the one-stage process of production of concentrated hydrogen peroxide solution by concentration and purification of hydrogen peroxide solution is carried out.