Efficient and intelligent reaction crystallization device

A reactive crystallization and intelligent technology, which is applied in crystallization separation, solution crystallization, crystallization adjustment/control, etc., can solve the problems of not being able to observe the crystal shape and particle size in real time, and achieve the effect of good shape, stable product, and guaranteed crystal quality

Inactive Publication Date: 2018-03-30
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1
View PDF13 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiency that the existing reaction crystallization automatic control device only automatically regulates a certain operating condition, and cannot observe the crystal morphology and particle size in real time in the high solid content and opaque reaction crystallization system, the present invention provides a high-efficiency, Intelligent reaction crystallization equipment, used for on-line monitoring and automatic control of all operating conditions such as feeding speed, temperature, pH, conductivity, stirring speed and condensate flow inside and outside the kettle during the reaction crystallization process, as well as in high solid content, opaque heat On-line measurement of morphology and particle size distribution of crystal particles in a mold system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient and intelligent reaction crystallization device
  • Efficient and intelligent reaction crystallization device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add the reaction bottom solution in the 10 L reactor, including 9.5 L of pure water, a total of 623 g of nickel sulfate, cobalt sulfate and manganese sulfate solids weighed in a molar ratio of 6:2:2, 0.3 L of ammonia water and 192 g of hydrogen Sodium oxide solid, etc. Prepare a mixed salt solution of nickel sulfate, cobalt sulfate and manganese sulfate with a concentration of 0.8 mol / L at a molar ratio of 6:2:2 and add it to the salt solution tank 1, and add 1.4 mol / L sodium hydroxide solution to the lye tank 2, 1 mol / L ammonia solution is added to the complexing liquid tank 3, and the prepared sulfuric acid solution with a concentration of 1 mol / L is added to the acid liquid tank 4. The inner wall of the reaction kettle 10 is provided with baffles 5, four of which are arranged along the circumferential direction, so as to reduce the directional flow of the liquid and enhance the turbulence. The PLC automatic control system 12 is the automatic control center of the wh...

Embodiment 2

[0036] at 2 m 3Add the reaction bottom liquid in the reaction kettle, including 1940 L pure water, nickel sulfate, cobalt sulfate and manganese sulfate solids weighed in a molar ratio of 8:1:1, a total of 124.6 kg, 60 L ammonia water and 38.4 kg sodium hydroxide solid Wait. Prepare a mixed salt solution of nickel sulfate, cobalt sulfate and manganese sulfate with a concentration of 0.8 mol / L at a molar ratio of 8:1:1 and add it to the salt solution tank 1, and add 1.4 mol / L sodium hydroxide solution to the lye tank 2, 1 mol / L ammonia solution is added to the complexing liquid tank 3, and the prepared sulfuric acid solution with a concentration of 1 mol / L is added to the acid liquid tank 4. The inner wall of the reaction kettle 10 is provided with baffles 5, eight of which are arranged along the circumferential direction, so as to reduce the directional flow of the liquid and enhance the turbulence. The PLC automatic control system 12 is the automatic control center of the wh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a device capable of controlling reaction crystallization process efficiently, intelligently and accurately. The device comprises a main device reaction kettle, a constant temperature water bath device is mounted on the outer side of the main device, a feeding device is mounted on the upper portion of the main device, a stirring device, a pH electrode and a conducting electrode are mounted on the upper portion of the main device; the constant temperature water bath device, the feeding device, the stirring device, the pH electrode, the conducting electrode and the like are connected with a programmable logic controller PLC automatic control system to realize automatic intelligent control, simultaneously particle sizes of the products are in real-time monitored by a on-line particle size measurement system. The device is simple and clear in whole structure, fully automatic measurement, feedback and control during the reaction crystallization process are realized, manual operating cost and manual operating errors are reduced to make the reaction crystallization process perform in a setting reaction condition all the time, accordingly quality and stability of thedesired products are guaranteed.

Description

technical field [0001] The invention relates to the field of automatic control of chemical reaction crystallization, in particular to an efficient and intelligent reaction crystallization equipment. It can be used for quality control of reaction crystallization in chemical industry, advanced materials and pharmaceutical products. Background technique [0002] The core part of lithium-ion batteries is the cathode material. However, the current cathode material precursors have problems such as small crystal tap density, wide particle size distribution, defective morphology, and unstable quality during the large-scale preparation process. Precise on-line monitoring, Automatically adjust the reaction conditions such as feeding speed, temperature, pH, conductivity, and stirring speed in the reaction system to achieve precise control of the reaction crystallization process of the cathode material precursor. [0003] Such as the patent CN105183026B, the invention name is: an autom...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18B01J19/00B01D9/02
CPCB01D9/0063B01D2009/0086B01J19/0006B01J19/18
Inventor 黄青山朱全红肖航杨超
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap