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What is glauberite precipitation barium sulfate BaSo4 ?

January 6, 2025by sales@grain-size.com0
1

What is glauberite precipitation barium sulfate BaSo4 ?

Mirabilite process is a mature technology, suitable for traditional methods, raw materials of barite and mirabilite, the by-product is sodium sulfide. The specific process is: the barite and pulverized coal are mixed in proportion, and then enter from the end of the baking furnace, and contact with high temperature air flow back flow 1100 ~ 1500 ℃ high temperature reduction reaction, the heat source required for the reaction is burning pulverized coal or heavy oil, making barium sulfide clinker (commonly known as black ash), after immersion settling and clarification, barium sulfide mass concentration is 130 ~ 160 g/L. At the same time, the barium sulfate wastewater (dilute sodium sulfide solution) was put into the nitrification tank and heated to more than 40 ℃ by steam engine. The mixer was started, and the salt salt was input into the tank and continued heating to 90 ℃. The samples were removed with sodium sulfide and the mass concentration of nitrification water was 1.2-1.22g /cm3, and then the nitrification water was kept warm and settled for use. 

01 Physical Properties
Specific gravity: 4.0-4.5
Hardness: moderate
Color: White powder
Gloss: Glass gloss
Magnetic: Non-magnetic
Transparency: Transparent to translucent
Properties: brittle, glassy, transparent to translucent
Shape: uniform fineness, no qualitative white powder or paste
02 Chemical Properties
Acid and alkali resistance and water resistance: good
Solubility: Solubility in water is only 0.0024g/100g water, soluble in hot concentrated sulfuric acid
Chemical stability: Extremely stable, insoluble in water, ethanol and hydrochloric acid
Reactivity: Precipitated barium sulfate is produced by mixing barium sulfide solution with glauber’s solution after adding and removing calcium and magnesium at 80℃. After pumping, filtering, washing and pickling, the pH value is adjusted to 5-6, and then filtered, dried and crushed
03 Advantages
The content of barium sulfate is more than 98%, with high whiteness, no black spots, no impurities, good dispersion and good wettability, excellent acid resistance

Application of salt salt method to precipitate barium sulfate

01 Various coatings
Powder paint, anticorrosive paint, ship paint, roll steel paint, container paint, automobile paint, furniture paint, exterior wall paint, electronic ink ink, color paste
02 color masterbatch
Enhanced masterbatch, degradable plastic, color masterbatch
03 Paper Making
Surface coating agent for papermaking, image printing paper and copper sheet paper
04 Rubber products
Rubber elastomer, tire, etc
05 Modified plastics
High light PP, ABS, PE, PSPA, PPO, PPS, PBT, PET, flame retardant plastics, automotive plastic home appliance shell, film, building materials plastics
06 Others
Optical film, lithium battery diaphragm, battery cathode expansion rod, manufacturing ceramic, enamel material, sizing agent for textile industry, glass products used as clarifying agent, children’s toys, etc

by sales@grain-size.com

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