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

Treatment method and system for barium fluoride waste containing metal ions

A metal ion and treatment method technology, which is applied in the field of barium fluoride waste treatment, can solve the problems of excessive waste water output, difficult disposal, waste of resources, etc., and achieve the effects of reducing waste treatment costs, significant economic benefits, and realizing recycling

Active Publication Date: 2021-06-29
PERIC SPECIAL GASES CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) As hazardous waste disposal, the cost is high, which will cause waste of resources;
[0007] (2) There is a lot of waste water output, it is difficult to dispose of it, and there may be secondary pollution

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
  • Treatment method and system for barium fluoride waste containing metal ions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Refer to attached figure 1 As shown, the system of barium fluoride waste containing metal ions is installed, the barium fluoride waste containing metal ions and the hydrofluoric acid in the finished product hydrofluoric acid storage tank 1 are respectively added through the pickling kettle 2 feed ports, the first solid-liquid The liquid separated by the separation device 3 is stored in the filtrate storage tank 4; the acidic solid barium fluoride is added through the feeding port of the neutralization kettle 5, and the neutral water and the neutralization alkali are respectively passed through the water inlet of the neutralization kettle 5 and the neutralization alkali The feeding port is added, and the neutral water separated by the solid-liquid separation equipment is stored in the neutral water storage tank 7 and reused through the pipeline. The solid barium fluoride is a pure product; the tail gas passes through the hydrogen fluoride absorption tower 8 and the tail g...

Embodiment 2

[0046] Refer to attached figure 1 As shown, the system of barium fluoride waste containing metal ions is installed, the barium fluoride waste containing metal ions and the hydrofluoric acid in the finished product hydrofluoric acid storage tank 1 are respectively added through the pickling kettle 2 feed ports, the first solid-liquid The liquid separated by the separation device 3 is stored in the filtrate storage tank 4; the acidic solid barium fluoride is added through the feeding port of the neutralization kettle 5, and the neutral water and the neutralization alkali are respectively passed through the water inlet of the neutralization kettle 5 and the neutralization alkali The feeding port is added, and the neutral water separated by the solid-liquid separation equipment is stored in the neutral water storage tank 7 and reused through the pipeline. The solid barium fluoride is a pure product; the tail gas passes through the hydrogen fluoride absorption tower 8 and the tail g...

Embodiment 3

[0048] Refer to attached figure 1 As shown, the system of barium fluoride waste containing metal ions is installed, the barium fluoride waste containing metal ions and the hydrofluoric acid in the finished product hydrofluoric acid storage tank 1 are respectively added through the pickling kettle 2 feed ports, the first solid-liquid The liquid separated by the separation device 3 is stored in the filtrate storage tank 4; the acidic solid barium fluoride is added through the feeding port of the neutralization kettle 5, and the neutral water and the neutralization alkali are respectively passed through the water inlet of the neutralization kettle 5 and the neutralization alkali The feeding port is added, and the neutral water separated by the solid-liquid separation equipment is stored in the neutral water storage tank 7 and reused through the pipeline. The solid barium fluoride is a pure product; the tail gas passes through the hydrogen fluoride absorption tower 8 and the tail g...

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 treatment method and system for barium fluoride waste containing metal ions. The method comprises the following steps of adding the barium fluoride waste containing the metal ions and hydrofluoric acids into a pickling kettle, starting stirring, heating, dissolving the metal ions in the pickling kettle, carrying out solid-liquid separation after stirring is completed, storing filtrates in a filtrate storage tank, and adding acidic barium fluoride solids into a neutralization kettle; adding water into the neutralization kettle, starting stirring and heating, slowly adding alkali for neutralization, adjusting the pH value of the solution to be neutral, then carrying out solid-liquid separation, drying solid barium fluoride to obtain a barium fluoride product, and recycling neutral water; absorbing a hydrogen fluoride tail gas volatilized in the pickling process by an absorption system to become the hydrofluoric acids to be recycled, and discharging the residual tail gas after reaching the standard after being neutralized by alkali liquors. According to the method, the metal ions in the barium fluoride waste are removed in a manner of combining acid pickling with neutralization, the pure barium fluoride product is produced, the cyclic utilization of resources is achieved, the treatment cost of the barium fluoride waste is reduced, and the method has remarkable economic benefits.

Description

technical field [0001] The invention relates to the technical field of solid hazardous waste treatment, in particular to a treatment method and system for barium fluoride waste containing metal ions. Background technique [0002] As an indispensable kind of inorganic fluoride, barium fluoride has been widely used in many industries such as optical fibers for light guides, optical glass, and motor brushes. At the same time, barium fluoride crystal is an excellent high-density optical material. With its excellent scintillation performance and fast time characteristics, it plays an increasingly important role in nuclear medicine, nuclear physics and remote sensing technology. [0003] In many processes in the fine chemical industry and other chemical industries, barium salt is often used as one of the important reaction raw materials to remove fluorine from substances. However, a large amount of barium fluoride waste is often produced during its use, which is doped with a larg...

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): B09B3/00B01D53/78B01D53/68
CPCB09B3/00B01D53/78B01D53/68B01D2257/2047Y02W30/20Y02C20/30
Inventor 苏嘉轩曹红梅李稣领张明杰刘跃旭李林齐航王云飞周志强
Owner PERIC SPECIAL GASES CO LTD
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