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

Separating method of electrolyte and non-electrolyte

A non-electrolyte and separation method technology, applied in semi-permeable membrane separation, chemical instruments and methods, electrodialysis, etc., can solve the problems of reducing the economic feasibility of industrial application of the process, difficult to achieve low-cost operation, and restricting wide application

Inactive Publication Date: 2013-05-15
秦才东
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional distillation or evaporative dehydration process is limited by high energy consumption, and the conventional deacidification, alkali, and salt methods are limited by the low content of acid, alkali, and salt in the mixture, and it is difficult to achieve low-cost operation. The high separation cost restricts the above-mentioned The widespread use of the process, or the reduction of the economic viability of the industrial application of said process

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Under normal temperature and pressure, use a cationic membrane and an anionic membrane (size 40x80 cm) provided by Beijing Tingrun Membrane Technology Development Co., Ltd. to cover the bottom with a 400-mesh commercially available thin-thick nylon filter and hold it up to form a container. The container shape of the aqueous solution, and then close the two containers to form a contact surface, the opening of the contact surface faces downward, and use the clamp to make the anion and cation membranes as close as possible at the contact surface. In order to increase the chance of close contact between the anion and cation membranes, nylon mesh Holes of different sizes are cut out at the corresponding positions of the upper anion and cation membrane, so that the anion and cation membrane forms a partition dialysis device and separates the aqueous solutions in the two parts of the container from each other, in order to always keep the ions in the two parts of the solution fr...

Embodiment 2

[0011] With 100 grams of commercially available alkali lignin powder, 2000 milliliters of the solution is prepared, and its pH value is about 11. This mixed solution was put into the dialysis device among the embodiment 1, and it can be seen that the moisture containing alkali is separated out. When about half of the volume of the water is analyzed, add water to the original volume, and after several dialysis, the alkali content in the alkali lignin solution decreases, and the pH value reaches 9. It can be seen from this example that for the mixture solution containing macromolecular organic acid salts, the hydrolysis of the macromolecular organic acid salts is promoted by continuously adding water, and the alkaline substances in the hydrolyzed products and the moisture in the mixture solution pass through the above-mentioned anion and cation membranes. The dialysis device formed by the partition separates out, and the organic macromolecules or organic macromolecular ions are ...

Embodiment 3

[0013] The anion membrane or the cation membrane in the separator with the slit opening formed by the anion and cation membranes, one of which adopts an anion membrane or a cation membrane that can only or mainly selectively pass through hydroxide ions or selectively pass through hydrogen ions, when When saline aqueous solution (such as seawater or sodium sulfate-containing aqueous solution) is dialyzed through the partition dialysis device, it can only or mainly separate out alkali-containing or acid-containing solution respectively, and the intercepted solution becomes acid-containing or acid-containing. Alkaline solution. If the anion and cation membranes are both anion membranes or cationic membranes that can only or mainly permeate hydroxide ions or hydrogen ions, then what is separated out is mainly desalinated water and concentrated salt solution.

[0014] When specially treating salt solutions (such as sodium sulfate) containing high-valent anion acid radicals, the abo...

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 relates to a separation method of an electrolyte and a non-electrolyte. An anionic membrane is in tight contact with a cationic membrane to form a baffle plate with a downward gap opening so that a mixed solution separates out water through the anionic membrane and the cationic membrane, can be dissociated into an ionic compound material and flows out continuously along the gap opening, and thus water in a mixture of inorganic matters and organic matters containing water and dissolved in water and compounds capable of being dissociated into anions and cations in water are separated out through the anionic membrane and the cationic membrane at a contact interface of the anionic membrane and the cationic membrane with low cost. The separation method can be widely applied to sewage treatment, and processes of dewatering, concentrating, deacidifying, dealkalizing, desalinating and brine-desalinating in an industrial production process.

Description

technical field [0001] The invention relates to a method for separating electrolytes and non-electrolytes, in particular to the combined application of anion and cation membranes, so that compounds (electrolytes) that can be dissociated into anions and cations in water, together with water itself, are separated through the ionic membrane to achieve water retention. And the mutual separation of compounds (electrolytes) that can dissociate into anions and cations in water and compounds that cannot be dissociated into anions and cations (non-electrolytes) in the original mixture. Background technique [0002] In various domestic sewage, catering industry sewage, and various industrial sewage (paper pulping, petrochemical, biochemical, pesticide, textile, leather, dyestuff, paint, etc.) treatment fields, all involve oil, or other organic matter and water, acid, Separation or dehydration concentration of alkali and salt. Especially, when acid hydrolyzing cellulose, hemicellulose...

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
IPC IPC(8): B01D61/42B01D61/24B01D61/44C02F1/44
CPCY02A20/124Y02A20/131
Inventor 秦才东
Owner 秦才东
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