Title: Refining method for eliminating electrolyzable inorganic salts impurities in organic compounds
Application Number: 90100121 Application Date: 1990.01.05
Publication Number: 1053053 Publication Date: 1991.07.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07B63/00,C07D213/79
Applicant(s) Name: Xiamen Pharmaceutical Factory No. 2 Address: 361004
Inventor(s) Name: Bai Binghou
Attorney & Agent: GAO WEI XIE SONG
Abstract:
     The present method refers to a refining method for eliminating electrolyzable inorganic salts impurities in semi-finished organic product. The finished product is obtained by adding cation-or anion-containing water into semi-finished organic product with agitating, then swing filtered and rinsed with small amt. of cation-or anion-containing water or de-ionized water, or distilled water. The present method can be carried out at ambient temp. without cooling and heating steps. It can increase recovery and greatly reduce water consumption. The present method is suitable for refining semi-finished organic products in medical and chemical industry.
Time: 7