Storage and production process of sodium formate
Apr 10, 2021
Sodium formate is non-toxic to human body. It is non corrosive and nonflammable. Generally, it is safe to store, hygroscopic and easy to decompose. Attention should be paid to moisture-proof during storage and transportation. In case of moisture absorption and caking, the product property will not be changed. It can be used normally after crushing.
At present, the production process of sodium formate by synthetic method is mainly divided into the following types: Using CO in calcium carbide tail gas or yellow phosphorus tail gas to synthesize sodium formate, using coke to make gas to synthesize sodium formate, using CO in ammonia feed gas to produce sodium formate, coal gasification of carbon monoxide and sodium hydroxide to synthesize sodium formate, and optimizing the packaging process of coal gasification of carbon monoxide and sodium hydroxide to synthesize sodium formate turn
The carbon monoxide gas and nitrogen from the previous process are heated to 140 ~ 150 ℃ and enter the synthesis reactor. In the synthesis reactor, carbon monoxide reacts with sodium hydroxide to form sodium formate solution. After pressure relief, the mixture of sodium formate solution, nitrogen and trace carbon monoxide gas is put into the rotary liquid separator for gas-liquid separation. The sodium formate solution is pumped into the storage tank for use, and the mixed gas is discharged into the large tank Qi.
The centrifuged sodium formate solution is blown to a hot air dryer for drying, and qualified sodium formate products are obtained for packaging. As the main product is sodium formate, it is generally considered that the process is specialized in the production of sodium formate. The utility model has the advantages that the yield of formic acid is high because it does not contain other alcohols. The chroma with purity above 97% is also good and the export volume is large.
Manufacturers: Dongying Shuntong, Shanxi plain, etc. One is produced by disproportionation process of traditional production of neopentyl glycol. Advantages: high content of neopentyl glycol. Because of the low price and black color, most manufacturers produce formic acid after extracting neopentyl glycol. Manufacturers: Shandong Yongliu, Shandong Dongchen, Zibo Shaohua, etc.
The other is disproportionation improved process, also known as neopentyl glycol methanol process. (in China, Shandong Research Institute of chemical industry independently developed. Internationally, it is also a unique technology in China.) Advantages: white color, high content, and not caking, wide range of applications. The export volume is large. Manufacturer: Jinan AIFUTE, Shandong kangteweiye. One is produced by traditional technology. Advantages: low price, light yellow color. Manufacturers: Hubei Yihua, Ruiyang chemical, etc.
One is purified on the basis of traditional process. Advantages: white color, high content, large export volume. Manufacturer: Yuntianhua. S26in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37 / 39wear suitable gloves and eye / face protection. R36 / 37 / 38 irritating to eyes, respiratory system and skin.
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