Method for continuously producing ferric salt crystals
A crystal and iron salt technology, which is applied in the field of continuous production of iron salt crystals, can solve the problems of easy crystallization, sticking and blocking the discharge pipe
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] A method for continuously producing iron salt crystals, comprising the steps of:
[0020] S1. Concentrate the ferric chloride solution to a concentration of 58%~64%, transfer to the crystallization kettle, cool to below 37°C, add 1~2kg of seed crystals per ton of concentrated solution, and start the stirring paddle;
[0021] S2. When a small amount of crystals appear, that is, when the crystal content in the solid-liquid mixture is 3% to 8%, open the discharge pump and the circulation pipeline valve;
[0022] S3. When the amount of crystals accounts for 30% to 60% of the total weight, close the circulation pipeline valve, open the discharge valve, and discharge the material to the centrifuge. At the same time, transfer the concentrated ferric chloride solution into the crystallization kettle to make the crystallization kettle The feed flow rate and output flow rate are kept consistent, the volume V of the crystallization tank, the flow rate is 0.8~1.2V / h, and the contin...
Embodiment 2
[0026] A method for continuously producing iron salt crystals, comprising the steps of:
[0027] S1. Concentrate the ferrous chloride solution to a concentration of 34%~50%, transfer to the crystallization kettle, turn on the stirring paddle, and cool to below 25°C;
[0028] S2. When a small amount of crystals appear, that is, when the crystal content in the solid-liquid mixture is 3% to 8%, open the discharge pump and the circulation pipeline valve;
[0029] S3. When the amount of crystals accounts for 30% to 60% of the total weight, close the circulation pipeline valve, open the discharge valve, and discharge the material to the centrifuge. At the same time, transfer the concentrated ferrous chloride solution into the crystallization kettle to make the crystallization kettle The feed flow rate and the discharge flow rate are consistent, the volume V of the crystallization tank is 0.5~1.0V / h, and the continuous production of ferrous chloride tetrahydrate crystals is realized;...
Embodiment 3
[0033] A method for continuously producing iron salt crystals, comprising the steps of:
[0034] S1. Concentrate the ferrous sulfate solution to a concentration of 20%~23%, transfer to the crystallization kettle, turn on the stirring paddle, and cool to below 5°C;
[0035] S2. When a small amount of crystals appear, that is, when the crystal content in the solid-liquid mixture is 3% to 8%, open the discharge pump and the circulation pipeline valve;
[0036] S3. When the amount of crystals accounts for 15% to 25% of the total weight, close the circulation pipeline valve, open the discharge valve, and discharge the material to the centrifuge, and simultaneously transfer the concentrated ferrous sulfate solution into the crystallization kettle to make the crystallization kettle The feed flow rate and the discharge flow rate are kept consistent, the crystallization tank volume V, the flow rate is 0.5~1.0V / h, and the continuous production of ferrous sulfate heptahydrate crystals is...
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