Title: Method of producing ammonium humate and humic acid with furfural residues
Application Number: 88107216 Application Date: 1988.10.15
Publication Number: 1033388 Publication Date: 1989.06.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07G1/00,C08H5/02,C08H5/04
Applicant(s) Name: Wu Tianyuan Address: 130200
Inventor(s) Name: Ren Fuan
Attorney & Agent: DAN ZHAOQUAN
Abstract:
     This invention is a method of producing ammonium humate and humic acid with furfural residues, the method of producing ammonium humate is: the furfural residues are oxidized with nitric acid to produce humic acid, which undergoes ammoniation treatment with ammonia water to produce ammonium humate. The method of producing humic acid is: the furfural residues are oxidized with nitric acid to produce humic acid, sodium hydroxide (aqueous alkali) is used to soak out humic acid, the separation of residues and liquid is carried out by filtering, and sulphuric acid is added to the liquid for acidification treatment to dissociate out the humic acid, after washing and drying pure humic acid is obtained.
Time: 4