The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2004
Filed:
Mar. 22, 2002
Novihum GmbH, Saalhausen, DE;
Abstract
The invention concerns a method for the production of an organic fertilizer of humic-like nature, by oxidising and ammoniating treatment of lignite, characterised by the fact that lignite is suspended in a aqueous ammoniacal medium of pH>9 to 12 and in this context is partially dissolved and is oxidised at a temperature of 20-100° C. at normal pressure; and the organic fertilizer being obtained as a dispersion in aqueous medium, by thickening, or by drying, with a C/N ratio from 9 to 15. An organic fertilizer as well as its use is described. The process enables the production of an organic fertilizer from lignite distinguished by a humus-like structure and slow-releasing fertilization effect, and its use as such or as an addition to yield-increasing and soil-ameliorating substrates.