There are three U.S. trona processing methods: ① sesquicarbonate Method: Process for the alkali ore crushed, dissolved, clarification, filtration, evaporation, crystallization, and the crystals separated Na2CO3 · NaHCO3 · 2H2O, calcined, obtained by screening carbonate sodium products. ② sodium carbonate monohydrate law: alkali process in which ore calcination Shandong sodium bicarbonate of soda, then soluble, clear, pressure filtration, evaporation and precipitation Na2CO3 · H2O, then dehydration, drying derived heavy soda. United States Wyoming Green River area companies commonly use this method, the production process is more complicated than sesquicarbonate law. ③ direct carbonation method brine: Searles Lake, California, is mainly used for brine processing. Soda ash, sodium carbonate scientific name, common name soda, soda, washing soda, the chemical formula Na? CO ?, belongs salts soda, sodium carbonate containing water of crystallization ten as colorless crystals, crystal water is unstable, easily weathered, turns white powder Na2CO3, soda ash is a strong electrolyte spot, with continuity and heat stable salts, soluble in water, the solution is alkaline. Soda soda ash manufacturing process from the point of view content, ammonia soda, soda and trona Union law coexist in our country, but mainly in order to Solvay. Ammonia soda, soda are chemical fiber synthetic soda Union law, but there is a big difference between raw material consumption, environmental protection, size and so on. Soda use | Three levels of chemical quality assurance (certified) | soda ash by Chemical Co., Ltd. Jinan three levels. Jinan three ping Chemical Co., Ltd. (www.sanpinghuagong.com) Shandong Jinan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Three-ping Chemical leadership with the staff warmly welcome all inquiries negotiations to create three levels of chemical better future.