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Method for recycling waste water discharged from zirconium carbonate production plant

A technology for production equipment and wastewater recovery, applied in chemical instruments and methods, zirconium compounds, inorganic chemistry, etc., can solve the problems of unrecycled, unseen recycling methods, and increased load of water treatment equipment, etc. The effect of material washing

Active Publication Date: 2019-09-24
山东广通新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. In the production process, deionized water is used for the preparation of raw material solutions in each step and the pulping of intermediate products after washing, resulting in excessive consumption of deionized water
[0009] 2. The crude zirconium carbonate washing water discharged from the crude zirconium carbonate unit contains a large amount of sulfate and soda ash, which are all discharged without recycling
It leads to the waste of resources of a large amount of deionized water and sodium sulfate and sodium carbonate chemicals carried in the washing water, and also increases the load on the water treatment device
[0010] 3. The zirconium carbonate washing water and filtered mother liquor discharged from the zirconium carbonate product device are all discharged without recycling
Also do not see ideal recycling method in the prior art

Method used

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  • Method for recycling waste water discharged from zirconium carbonate production plant
  • Method for recycling waste water discharged from zirconium carbonate production plant
  • Method for recycling waste water discharged from zirconium carbonate production plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of wastewater recycling method discharged from zirconium carbonate production device of the present invention

[0051] The waste water from the crude product zirconium carbonate plant and the product zirconium carbonate plant is used in the basic zirconium sulfate plant to replace ion-free water, used as basic zirconium sulfate washing water and raw material preparation water, and raw material basic zirconium sulfate production in the crude product zirconium carbonate plant Slurry water, the specific operation steps are as follows:

[0052] ①. Basic zirconium sulfate intermediate first stage washing

[0053] The zirconium carbonate washing water discharged from the zirconium carbonate product unit is all collected and used for the first-stage washing of the basic zirconium sulfate intermediate in the intermediate basic zirconium sulfate unit;

[0054] The mass ratio of the basic zirconium sulfate intermediate for the first-stage washing is: basic zirconium sulfa...

Embodiment 2

[0081] The waste water from the crude product zirconium carbonate plant and the product zirconium carbonate plant is used in the basic zirconium sulfate plant to replace ion-free water, used as basic zirconium sulfate washing water and raw material preparation water, and raw material basic zirconium sulfate production in the crude product zirconium carbonate plant Slurry water, the specific operation steps are as follows:

[0082] ①. Basic zirconium sulfate intermediate first stage washing

[0083] The zirconium carbonate washing water discharged from the zirconium carbonate product unit is all collected and used for the first-stage washing of the basic zirconium sulfate intermediate in the intermediate basic zirconium sulfate unit;

[0084] The mass ratio of the basic zirconium sulfate intermediate for the first-stage washing is: basic zirconium sulfate in terms of solids: zirconium carbonate washing water=200:500.

[0085] ②.Second stage washing of basic zirconium sulfate i...

Embodiment 3

[0110] The waste water from the crude product zirconium carbonate plant and the product zirconium carbonate plant is used in the basic zirconium sulfate plant to replace ion-free water, used as basic zirconium sulfate washing water and raw material preparation water, and raw material basic zirconium sulfate production in the crude product zirconium carbonate plant Slurry water, the specific operation steps are as follows:

[0111] ①. Basic zirconium sulfate intermediate first stage washing

[0112] The zirconium carbonate washing water discharged from the zirconium carbonate product unit is all collected and used for the first-stage washing of the basic zirconium sulfate intermediate in the intermediate basic zirconium sulfate unit;

[0113] The mass ratio of the basic zirconium sulfate intermediate for the first-stage washing is: basic zirconium sulfate in terms of solids: zirconium carbonate washing water=200:500.

[0114] ②.Second stage washing of basic zirconium sulfate i...

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Abstract

The invention relates to a method for recycling wastewater discharged by zirconium carbonate production devices and belongs to a preparation method of a zirconium compound. The method is characterizedin that wastewater from a crude zirconium carbonate product device and a zirconium carbonate product device is used in a basic zirconium sulfate device to replace deionized water and used as water for basic zirconium sulfate washing, raw material preparation and basic zirconium sulfate material slurry making in the crude zirconium carbonate product device, deionized water consumed by each ton ofzirconium carbonate products is decreased to 6.8 tons or below, 89.8% or above of anhydrous sodium sulfate is saved, 32.8% or above of sodium carbonate is saved, and consumption of raw materials of products is reduced by about 342 yuan / ton in total. Most of zirconium carbonate washing water and filtration mother liquor discharged by the zirconium carbonate product device are recycled. Most of deionized water and chemicals carried by the deionized water are recycled, the production cost is substantially reduced, and the load of a water treatment device is reduced.

Description

technical field [0001] The invention relates to a recycling method for wastewater discharged from a zirconium carbonate production device. A method for the preparation of compounds belonging to zirconium. Background technique [0002] Zirconium carbonate Zr 2 O(CO 3 ).nH 2 O, also known as basic zirconium carbonate ZrO 2 CO 2 ·nH 2 O or zirconium carbonate. It is an important zirconium compound, which is widely used in functional ceramics, structural ceramics, cosmetic antiperspirants, automobile exhaust purification catalysts, water-resistant crosslinking agents for papermaking, paint and ink drier, and is also a relatively economical method for producing ultrafine silica raw materials. [0003] Zirconium carbonate liquid phase precipitation synthesis method has the advantages of simple process control, stable product quality, good activity, etc., and is widely used. The liquid-phase step-by-step precipitation synthesis process uses zirconium oxychloride as the sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G25/00
Inventor 吴振宇
Owner 山东广通新材料有限公司