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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Schweppe; Manfred
Address:
Herne, DE
No. of patents:
3
Patents:




Patent Number Title Of Patent Date Issued
4505732 Solid, water-soluble micronutrient mixtures, their preparation and use March 19, 1985
A fertilizer concentrate composition comprising (1) 80-90%, by weight, of water-soluble salts of plant micronutrients, 10-18 mole percent of said salts being in complexed form, and (2) 0.7-1.75%, by weight, of a stabilizer comprising a solid, water-soluble polymer in powder form having
4142885 Method of preparing fertilizers with retarded nutrient release March 6, 1979
An improved process in the preparation of sustained release fertilizer compositions which comprises subjecting a preponderantly water-soluble granular fertilizer composition first to accretive granulation under accretive granulation conditions with a melt, solution or slurry of one or
4104362 Process for the manufacture of ammonium polyphosphate August 1, 1978
Ammonium polyphosphate is manufactured on a continuous basis by reacting gaseous ammonia and aqueous phosphoric acid at elevated temperatures in a one or multiple stage falling film reaction zone in the presence of a diluting gas if desired, using wet phosphoric acid, preferably containi


 
 
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