1926 produced high-quality' Red Triangle' brand soda ash, and won the gold medal of Philadelphia International Expo in the same year, and 1930 won the gold medal of Belgian Commerce and Industry Expo.
1937, the Japanese invaders invaded Tanggu, and all colleagues in the soda plant moved southward to Laolongba, Wutongqiao, Qianwei County, Sichuan Province, and renamed it' New Tanggu' to build Yonglichuan Plant and open up Huaxi Chemical Industry Base.
194 1 year, under the painstaking research and repeated experiments of Dr. Hou, a new process combining ammonia synthesis with ammonia-alkali process-'Hou Shi alkali process' (combined alkali process) was invented.
Tanggu was liberated in 1949, and the soda plant was reborn and its production was developed. 1952, soda plant officially implemented public-private partnership, becoming the first public-private partnership enterprise in China. From 1970 to 1978, the first phase of the' combined alkali production' project was invested by the state, and the water source project, slag discharge project, edible alkali project and self-provided high-voltage thermal power station project were completed. During the period of 1994, four energy-saving transformations were carried out on the second-phase slag yard, synthetic ammonia, steamed ammonia and heavy soda ash by using the low-interest loan from the Asian Development Bank, which reduced the production cost and improved the economic benefit.
Tianjin Soda Plant now covers an area of 4.69 million square meters, mainly producing 22 kinds of products such as soda ash, heavy soda ash, ammonium chloride, compound fertilizer, recycled salt, baking soda, sodium metasilicate, synthetic ammonia, edible carbon dioxide, 74% calcium tablets, carbon oxygen, argon, water quality stabilizer and snow remover. Among them, six products were awarded the titles of excellent department and excellent city respectively, and soda ash won the international gold medal for four consecutive times and the national gold medal for three times.
Since the reform and opening up, Tianjin Alkali Plant has aimed at the international advanced level, and adopted a large number of energy-saving, efficient and large-scale alkali-making equipment and a large number of computers in management through independent development and introduction, and the degree of automation control has reached the domestic leading level.
At the same time, Tianjin Soda Plant, based on the principle of "comprehensive management and environmental protection", made efforts to increase production without increasing losses during the reconstruction and expansion of the enterprise, and successively carried out dust removal, waste gas and waste liquid recovery treatment on some major production equipment, so that the discharge was always lower than the national standard.