GB357461A - Improvements in or relating to the manufacture and production of fertilizers - Google Patents
Improvements in or relating to the manufacture and production of fertilizersInfo
- Publication number
- GB357461A GB357461A GB1537/31A GB153731A GB357461A GB 357461 A GB357461 A GB 357461A GB 1537/31 A GB1537/31 A GB 1537/31A GB 153731 A GB153731 A GB 153731A GB 357461 A GB357461 A GB 357461A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crude product
- ammonium
- fertilizers
- relating
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
A solid fertilizer is directly produced by mixing a solid superphosphate with the crude product obtained by reacting ammonia and carbon dioxide either as gases or liquids at an elevated temperature and pressure, the crude product usually comprising urea, ammonium carbamate and water, but it may also contain ammonium carbonate and/or ammonium bicarbonate, biuret, &c. The super phosphate may be prepared by treating phosphate rock with a mineral acid, e.g. sulphuric, phosphoric, nitric or hydrochloric acid or mixtures thereof. Additional fertilizing or inert substances may be incorporated in the finished product. Specifications 335,421 and 339,969, [both in Class 2 (iii), Dyes &c.], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US357461XA | 1930-01-17 | 1930-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB357461A true GB357461A (en) | 1931-09-24 |
Family
ID=21884552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1537/31A Expired GB357461A (en) | 1930-01-17 | 1931-01-16 | Improvements in or relating to the manufacture and production of fertilizers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB357461A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439432A (en) * | 1943-09-27 | 1948-04-13 | Du Pont | Ammoniation of fertilizers |
| US2766107A (en) * | 1952-09-22 | 1956-10-09 | Phillips Petroleum Co | Production of granular mixed fertilizers from urea, acid anhydrides and ammonia |
| DE1022239B (en) * | 1955-06-02 | 1958-01-09 | Lentia Gmbh | Process for the production of granulated multi-nutrient fertilizers |
-
1931
- 1931-01-16 GB GB1537/31A patent/GB357461A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439432A (en) * | 1943-09-27 | 1948-04-13 | Du Pont | Ammoniation of fertilizers |
| US2766107A (en) * | 1952-09-22 | 1956-10-09 | Phillips Petroleum Co | Production of granular mixed fertilizers from urea, acid anhydrides and ammonia |
| DE1022239B (en) * | 1955-06-02 | 1958-01-09 | Lentia Gmbh | Process for the production of granulated multi-nutrient fertilizers |
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