✦ LIBER ✦
Oxy-ammoniation of Elbistan lignite to produce a nitrogenous fertilizer
✍ Scribed by Kemal Gürüz
- Book ID
- 103089901
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 617 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
✦ Synopsis
Elbistan lignite has been found to contain 50.1 wt% (daf) humic acid. The i.r. spectrum of this lignite, however, indicates the absence of free carboxyl groups. Treatment with mineral acids, however, regenerates the carboxyl groups. A product containing 18.8 wt% N (daf) has been obtained by treatment of HNOJtreated Elbistan lignite in aqueous ammonia for 4 h at 165°C and under oxygen pressure. Water-soluble and active nitrogen tests indicate that such products may have the properties of slowrelease nitrogenous fertilizers.