Title: Formic acid and sodium sulfate producing method
Application Number: 95112584 Application Date: 1995.12.09
Publication Number: 1153767 Publication Date: 1997.07.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01D5/02,C07C51/02,C07C53/06
Applicant(s) Name: Chen Guangsheng Address: 421001
Inventor(s) Name: Wang Zelin
Attorney & Agent:
Abstract:
     The present invention relates to a formic acid and sodium sulfate producing method with sodium formate and sulfuric acid as raw material. The said method has the merits of simple equipment, low power consumption, high formic acid yield and high sodium sulfate quality. It features that product is separated in solid-liquid separator to produce solid sodium sulfate and the liquid material is vacuum evaporated in evaporator to result in formic acid gas, which is condensated in condensator to produce formic acid liquid.
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