Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > Production and manufacturing method and process flow of red pill

[Chemical Knowledge]：Production and manufacturing method and process flow of red pill

Read： 1096 Time：13months ago Source：Transform the World with Simplicity

The manufacturing method
of Hongdan
1. Introduction

Hongdan as an important chemical production raw material, is widely used in antirust pigments, plastics, rubber, ceramics and other fields. Its manufacturing method involves multiple chemical reactions and process steps. Therefore, it is of great significance to master the manufacturing method of red pill to improve product quality and production efficiency. This article will introduce the manufacturing method of red Dan in detail, including raw material preparation, reaction process, post-treatment and other process steps.

2. raw material preparation

1. white lead: white lead grinding into fine powder, sieving spare.
2. Nitric acid: use industrial grade nitric acid with a concentration of about 65%.
3. Water: Use deionized water to ensure pure water quality.

3. reaction process

1. lead white and nitric acid reaction: lead white powder slowly added to nitric acid, while stirring, make it fully reaction. The reaction produces lead nitrates.
2. pH value control: adjust the pH value of the reaction solution to a certain range with deionized water to fully dissolve the lead nitrate.
3. Crystallization: The reaction solution is cooled to a certain temperature to crystallize the nitrate of lead.
4. Filtration and washing: The crystals were separated by filtration and washed with deionized water to remove impurities.

4. post-treatment

1. Drying: Put the filter cake in a drying oven and dry to constant weight at a certain temperature.
2. Grinding and sieving: Grind the dried crystals into fine powder and sift for later use.
3. Packing: pack the red Dan powder in a sealed container, pay attention to moisture and sunscreen.
Precautions for
5.

1. During the entire manufacturing process, the temperature and pH value should be strictly controlled to ensure the smooth progress of the reaction and the stability of product quality.
2. Pay attention to safety during operation, avoid contact with skin and inhalation of gas.
3. Wastes generated in the production process should be properly disposed of to avoid pollution to the environment.

6. Quality Control

In order to ensure the quality of Hongdan products, the following aspects of quality control are required:

1. Chemical composition analysis: regularly detect the content of lead, nitrogen and other key elements in Hongdan products to ensure that they meet relevant standards.
2. Physical performance testing: the particle size distribution, color, density and other physical properties of Hongdan products are tested to meet the requirements of different application fields.
3. Impurity control: Strictly monitor the impurities that may be introduced during the production process to ensure product purity.

through the above manufacturing methods and quality control measures, can produce high-quality red Dan products, for the chemical production of raw materials to provide a stable supply of raw materials.

Previous： Production and manufacturing method and process of sulfur dioxide

Next： Manufacturing method and process flow of zirconia

News Categories