Method for separating sodium chloride and sodium bromide by organic solvent
An organic solvent and sodium bromide technology, applied in the field of separation of halogen salts, can solve the problems of high energy consumption, low yield, and difficulty in obtaining pure products, and achieve low operating costs, high recovery rate, and simple separation equipment Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0037] (1) Get the mixed salt of analytical pure reagent sodium chloride and sodium bromide, sodium bromide accounts for 70% of the mixed salt quality, add 4 times of anhydrous methanol, stir at room temperature for 2 hours, filter, filter out the insoluble solid, the solid packed for later use;
[0038] (2) Put the filtrate in the step (1) into the evaporator, heat up and evaporate, the solution temperature in the evaporator is 75°C, and the top temperature is 62°C;
[0039] (3) steam out about 20% of methanol, cool down to 20°C, filter, filter out the crystalline salt, and pack the salt for future use;
[0040] (4) the filtrate in the step (3) is squeezed into the evaporator, and continues to heat up and evaporate;
[0041] (5) steam about 80% of methanol, cool to 20° C., filter to obtain finished product sodium bromide, and apply the filtrate mechanically to the filtrate of the next batch of steps (3);
[0042] (6) Repeat the above steps with the filtered salt in steps (1...
Embodiment 2
[0046] (1) Get the company's cyclization waste salt, mainly sodium chloride and sodium bromide, also contain a small amount of sodium carbonate and sodium sulfate, sodium bromide accounts for 80% of the mixed salt quality, add 5 times of methanol, stir at room temperature for 2 Hour; Filter, filter out insoluble solid, this solid is packed for subsequent use;
[0047] (2) Put the filtrate in the step (1) into the evaporator, heat up and evaporate, the solution temperature in the evaporator is 80°C, and the top temperature is 64°C;
[0048] (3) steam about 30% of methanol, cool down to 20°C, filter, filter out the crystalline salt, and pack the salt for future use;
[0049] (4) the filtrate in the step (3) is squeezed into the evaporator, and continues to heat up and evaporate;
[0050] (5) steam about 70% of methanol, cool to 20°C, filter to obtain finished product sodium bromide, and apply the filtrate to the filtrate of the next batch of steps (3);
[0051] (6) Repeat the ...
Embodiment 3
[0055] (1) Get the mixed salt of analytical pure reagent sodium chloride and sodium bromide, sodium bromide accounts for 75% of the mixed salt quality, add 4.5 times of anhydrous methanol, stir at room temperature for 2 hours, filter, filter out the insoluble solid, the solid packed for later use;
[0056] (2) Put the filtrate in the step (1) into the evaporator, heat up and evaporate, the solution temperature in the evaporator is 70°C, and the top temperature is 60°C;
[0057] (3) steam out about 20% of methanol, cool down to 20°C, filter, filter out the crystalline salt, and pack the salt for future use;
[0058] (4) the filtrate in the step (3) is squeezed into the evaporator, and continues to heat up and evaporate;
[0059](5) steam about 80% of methanol, cool to 20° C., filter to obtain finished product sodium bromide, and apply the filtrate mechanically to the filtrate of the next batch of steps (3);
[0060] (6) Repeat the above steps with the filtered salt in steps (...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com