Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A process for producing genuine salt products by transferring powder salt to crystals

A process and crystal transformation technology, which is applied in the shape preparation of alkali metal halides, etc., can solve the problems of secondary evaporation crystallization and evaporation equipment, long production process, occupation of genuine industrial salt market, etc., and achieve low dissolution rate , Good effect of crystal transformation, and the effect of increasing the crystal growth temperature

Active Publication Date: 2021-09-07
江苏苏盐井神股份有限公司 +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The powder salt is recrystallized after dissolving, the production process is long and complicated;
[0004] 2) Dissolving and recrystallizing powder salt, secondary evaporation crystallization, high energy consumption, high direct production cost, uneconomical
[0005] 3) Secondary evaporation crystallization evaporation equipment and its supporting equipment are many, the equipment investment is high, and the operating cost is high
[0006] 4) The powder salt market has a small capacity, and it is not economical to treat it as a defective product, and it also occupies the genuine industrial salt market

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
  • A process for producing genuine salt products by transferring powder salt to crystals
  • A process for producing genuine salt products by transferring powder salt to crystals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A powder salt, particle size distribution: 5% of 80-mesh sieve, 15% of 80-100 mesh sieve, 80% of 100-mesh sieve. Through the method of the present invention, powdery sodium chloride is crystal-transformed and industrial salt process method is crystal-transformed. Saturated original halogen is used as the crystal transformation system solution, saturated brine (containing about 305g / L NaCl, NaSO 4 About 14g / L) after salt washing, go to the mixing tank and mix with powder salt to make salt slurry (solid-liquid volume ratio 30%), and the uniformly mixed salt slurry enters the beating and crystal conversion tank, the speed is 100 rpm, and the solid-liquid ratio is controlled 30%, crystal cultivation for 10 hours, the temperature of the mother liquor in the system is 85°C, and the salt slurry is separated by the first-stage cyclone. , the underflow crystal-containing mother liquor is sent to the feeding and mixing process for circulation, and the concentrated salt slurry se...

Embodiment 2

[0044] A kind of powder salt, particle size distribution: 5% of 80-mesh sieve, 15% of 80-100 mesh sieve, 80% of 100-mesh sieve, through the powdery sodium chloride crystal conversion industrial salt process method of the present invention. . After preheating to 90°C, saturated original halogen (containing about 295g / L NaCl, NaSO 4About 18g / L) is used as the crystal transformation system solution. After the saturated brine is washed with salt, go to the mixing tank and mix with powder salt to make salt slurry (solid-to-liquid ratio 10%). / min, the solid-liquid ratio is controlled at 10%, the crystal is cultivated for 16 hours, the temperature of the mother liquor in the system is 70°C, the salt slurry is separated through the first-stage cyclone, and the mother liquor and fine crystals are returned to the second-stage cyclone to continue separation, and the second-stage cyclone Most of the clear night is discharged from the top flow, and the crystal-containing mother liquor in...

Embodiment 3

[0046] A kind of powder salt, particle size distribution: 10% of the 100-mesh sieve, 90% of the 100-mesh sieve; through the powdery sodium chloride crystal conversion industrial salt process method of the present invention, the crystal conversion treatment. After preheating at 95°C, saturated original halogen (containing about 295g / L NaCl, NaSO 4 About 18g / L) is used as the crystal transformation system solution. After the saturated brine is washed with salt, go to the mixing tank and mix with powder salt to make salt slurry (solid-to-liquid ratio 10%). / min, the solid-liquid ratio is controlled at 10%, the crystal is cultivated for 16 hours, the temperature of the mother liquor in the system is 70°C, the salt slurry is separated through the first-stage cyclone, and the mother liquor and fine crystals are returned to the second-stage cyclone to continue separation, and the second-stage cyclone Most of the clear night is discharged from the top flow, and the crystal-containing ...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a process for producing genuine salt products through powder salt conversion to crystal, which comprises the steps of powder salt premixing, beating and crystal conversion, genuine product separation, salt washing, dehydration and drying. The technical method of the present invention directly converts powdered salt from fine crystals to coarse crystals, does not need evaporation, saves energy consumption, and has low production costs.

Description

technical field [0001] The invention relates to a process for producing authentic salt products through powder salt transformation, which belongs to the field of salt production technology and is mainly suitable for powder salt productization treatment. Background technique [0002] At present, in the vacuum salt production process, the powdery sodium chloride collected by the dry dust collector for drying bed tail gas treatment has a large amount of dust during use due to the fine particle size of the powdered salt, which is harmful to operators and the environment; The impurity content is high, and the processing cost is high; the use range of powder salt is narrow, and the market capacity is small. At present, when the powder salt cannot be digested by the market, and cannot be processed as a defective product, it can only be poured into the original brine to dissolve and make brine, and then evaporated again to make salt, which wastes energy, and the reproduction cost is...

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 Patents(China)
IPC IPC(8): C01D3/22C01D3/24
Inventor 曹军宋茜茜董秀芳刘凯郭云云杜乐意
Owner 江苏苏盐井神股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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