Title: Compound trace fertilizer produced by the new method of comprehensive utilization of burnt coal ash
Application Number: 89106813 Application Date: 1989.09.12
Publication Number: 1050180 Publication Date: 1991.03.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/00
Applicant(s) Name: Huang Yulong Address: 255436
Inventor(s) Name:
Attorney & Agent:
Abstract:
     method for utilizing coal ash and cinder which is exhansted from coal-fired power plant ot other coal-fired furnaces is characterized by preparing a compound trace fertilizer which is made of coal ash and cinder mixing with the fertilizers contained nitrogen, phosphate, potash and reacting together. These elements of P, K, S, SiO2, Ca Mg, Mo, Fe, Cu, Zn, B, Na, Se contained in coal ash which are necessary for growth of crops can be sufficiently utilized. Said compound trace fertilizer is a non-damp, non-lumping granular fertilizer. Because various elements can be promoted each other and adsorbed by croops, the availability of nutrient of the fertilizer can be increased over 8-10% compared with single nittogenous or phosphate fertilizer. This method has good economic benefity, to produce one ton fertilizer can utilize coal ash and cinder one third, and reducing environmental pollution.
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