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Class Information
Number: 71/39
Name: Chemistry: fertilizers > Processes and products > Inorganic material > Phosphorus-containing > Phosphates > Acid treatment > Nitric and hydrochloric
Description: Processes wherein the acid supplied is HNO3 or HCl mixed in the liquid state.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7452398 |
Phosphate and potash(PK)-containing compound fertilizer |
Nov. 18, 2008 |
| 7278063 |
Method and system for performing a hardware trace |
Oct. 2, 2007 |
| 5676005 |
Wire-drawing lubricant and method of use |
Oct. 14, 1997 |
| 5098461 |
Phosphatic and nitrogen fertilizers via HNO.sub.3 processing |
Mar. 24, 1992 |
| 4515615 |
Manufacturing and using nitrogen fertilizer solutions on a farm |
May. 7, 1985 |
| 4512794 |
Manufacturing and using nitrogen fertilizer solutions on a farm |
Apr. 23, 1985 |
| 4511389 |
Manufacturing and using nitrogen fertilizer solutions on a farm |
Apr. 16, 1985 |
| T105302 |
Tamper-resistant container |
Apr. 2, 1985 |
| 4323386 |
Method of manufacturing NP- or NPK-containing fertilizers from magnesium containing phosphate |
Apr. 6, 1982 |
| 4308049 |
Process for the absorption of ammonia in acid solutions or slurries |
Dec. 29, 1981 |
| 4177053 |
Method for the production of phosphoric acid with high contents of fertilizer-nutrients |
Dec. 4, 1979 |
| 4175944 |
Removal of fluorine during production of fertilizer |
Nov. 27, 1979 |
| 4073635 |
Process for producing a slurry suitable for the manufacture of a mixed fertilizer containing nitrogen plus phosphorus |
Feb. 14, 1978 |
| 4063920 |
Reducing settling rate of post-precipitate in fertilizer solution by chloride addition |
Dec. 20, 1977 |
| 4043789 |
Process for manufacturing of phosphoric acid |
Aug. 23, 1977 |
| 4008315 |
Process for reducing nitrogen oxide losses from certain slurries and solutions by the addition of phosphate salts |
Feb. 15, 1977 |
| 3993466 |
Fertilizer production |
Nov. 23, 1976 |
| 3967948 |
Purification of phosphoric acid with urea and nitric acid |
Jul. 6, 1976 |
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