Home page

BLOG

Artificial stone market for aluminum hydroxide filling applications

Artificial stone market for aluminum hydroxide filling applications

19

2021

/

11

Effect of Aluminum Hydroxide Flame Retardant on Humidity

Effect of Aluminum Hydroxide Flame Retardant on Humidity

19

2021

/

11

Effect of Temperature on Particle Size of Aluminum Hydroxide Powder

Effect of Temperature on Particle Size of Aluminum Hydroxide Powder

13

2021

/

11

Understanding of Oil Absorption of Aluminum Hydroxide Packing

Understanding of Oil Absorption of Aluminum Hydroxide Packing

13

2021

/

11

How does alumina react to get aluminum hydroxide flame retardant

How does alumina react to get aluminum hydroxide flame retardant

At present, there are many kinds of preparation methods of aluminum hydroxide flame retardant, such as Bayer method, soda lime sintering method, ammonium bicarbonate method, etc. In addition to these three common methods, it can also be prepared by alumina reaction. This is a very complete chemical reaction process. The whole preparation process needs to master certain reaction knowledge. Let's introduce the reaction process to you. Because alumina is an amphoteric oxide that is insoluble in water, and aluminum hydroxide flame retardant is an amphoteric hydroxide that is insoluble in water. They can all be soluble in strong acid and alkali, but they will not be soluble in ammonia water (weak alkali) and will not be soluble in carbonic acid (weak acid). Therefore, the following methods can be used: 1. Dissolve alumina in sulfuric acid to obtain aluminum sulfate solution, and then add excess ammonia to the aluminum sulfate solution to obtain aluminum hydroxide precipitate, which can be filtered, washed and dried. Al2O3 3H2SO4 = Al2(SO4)3 3H2O Al2(SO4)3 6NH3.H2O=2Al(OH)3↓ 3(NH4)2SO4 2. Dissolve alumina in sodium hydroxide to obtain sodium metaaluminate solution, and then pass excess carbon dioxide into the sodium metaaluminate solution to obtain aluminum hydroxide, precipitate, filter, wash and dry. During the preparation process, it should be noted that the purpose of adding excess ammonia and carbon dioxide is to ensure that alumina can be completely converted into aluminum hydroxide flame retardant to obtain a purer product. The above is an introduction to the method of preparing aluminum hydroxide flame retardant by alumina reaction. In fact, the whole reaction process is very easy to master. It mainly uses the chemical principle of substances to make them react with each other. Through the above method, products with high purity can be obtained well, which will help our production and use.

02

2021

/

11

Application of Aluminum Hydroxide in Modified Thermoplastic Industry

Application of Aluminum Hydroxide in Modified Thermoplastic Industry

29

2021

/

10

The role of aluminum hydroxide in the addition of artificial stone

The role of aluminum hydroxide in the addition of artificial stone

29

2021

/

10

Magnesium hydroxide flame retardant performance improvement methods you know?

Magnesium hydroxide flame retardant performance improvement methods you know?

22

2021

/

10

Two categories of magnesium hydroxide flame retardant

Two categories of magnesium hydroxide flame retardant

22

2021

/

10

What kinds of asphalt flame retardants can be divided into on the market

What kinds of asphalt flame retardants can be divided into on the market

Many people have already realized the greater effect of asphalt flame retardants in preventing combustion. They feel that this is a very important flame retardant raw material. What I want to tell you below is which types of flame retardants can be divided.

15

2021

/

10

< 1...7 8 9...34 >

Hefei Zhongke Flame Retardant New Material Co., Ltd

Sales Department Telephone:15905609730
Ministry of Foreign Trade Telephone:13956052398
Comprehensive department Telephone:0551-67712199
Company headquarters address: Hefei Feidong Economic Development Zone Xianghe Road 36
E-mail:hefei@zkxcl.com

Two-dimensional code

WeChat Public Number QR Code

Two-dimensional code

Mobile website QR code

Copyright: Hefei Zhongke Flame Retardant New Material Co., LtdSEO Tags

Business License