GB393300A - Improvements in the process of preparing from rock phosphate a fertiliser suitable for use on acid or lime deficient soils or on soils rich in iron - Google Patents
Improvements in the process of preparing from rock phosphate a fertiliser suitable for use on acid or lime deficient soils or on soils rich in ironInfo
- Publication number
- GB393300A GB393300A GB3250831A GB3250831A GB393300A GB 393300 A GB393300 A GB 393300A GB 3250831 A GB3250831 A GB 3250831A GB 3250831 A GB3250831 A GB 3250831A GB 393300 A GB393300 A GB 393300A
- Authority
- GB
- United Kingdom
- Prior art keywords
- soils
- acid
- phosphate
- mixture
- fertiliser
- 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
Finely ground tricalcium phosphate is treated with sulphuric acid in amount theoretically necessary to convert it into dicalcium phosphate, a mixture of mono-, di-, and tricalcium phosphates being actually produced. The acid should be of such concentration as to produce a moist crumbly mixture, and must be in sufficient quantity also to react with compounds other than tricalcium phosphate occurring in the mineral. For Nauru phosphate, a specific gravity of 1,39-1,4, or, according to the Provisional Specification, 1,3, may be employed. The mixture may be passed to a den, or over one or a plurality of successive conveyer belts in a chamber wherein fumes evolved are removed by an air current. The cooled product passes to a storage chamber, and may be subsequently ground. Reference has been directed by the Comptroller to Specification 5363/83, [Class 1, Acids, alkalies, &c.].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3250831A GB393300A (en) | 1931-11-24 | 1931-11-24 | Improvements in the process of preparing from rock phosphate a fertiliser suitable for use on acid or lime deficient soils or on soils rich in iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3250831A GB393300A (en) | 1931-11-24 | 1931-11-24 | Improvements in the process of preparing from rock phosphate a fertiliser suitable for use on acid or lime deficient soils or on soils rich in iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393300A true GB393300A (en) | 1933-05-24 |
Family
ID=10339668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3250831A Expired GB393300A (en) | 1931-11-24 | 1931-11-24 | Improvements in the process of preparing from rock phosphate a fertiliser suitable for use on acid or lime deficient soils or on soils rich in iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB393300A (en) |
-
1931
- 1931-11-24 GB GB3250831A patent/GB393300A/en not_active Expired
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