GB526857A - Process for the production of sinter phosphates - Google Patents
Process for the production of sinter phosphatesInfo
- Publication number
- GB526857A GB526857A GB9536/39A GB953639A GB526857A GB 526857 A GB526857 A GB 526857A GB 9536/39 A GB9536/39 A GB 9536/39A GB 953639 A GB953639 A GB 953639A GB 526857 A GB526857 A GB 526857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali
- phosphates
- sintering
- met
- class
- 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
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
526,857. Sintering phosphates; double salts. KALI-CHEMIE AKT.-GES. March 27, 1939, No. 9536. Convention date, May 5, 1938. [Class 1 (iii)] In the process described in Specification 242,512, [Class 1(iii)], of calcining a mixture of crude phosphates, alkali metal compounds, and sand in such proportions that 1 mol. of alkali is present per mol. of P 2 0 5 , and a third of the lime bound to the phosphoric acid together with lime present in other forms is bound as calcium orthosilicate, the alkali metal compounds used are entirely or partly replaced by the slag produced in the desulphurization of crude iron with soda. Thus either the slag may be used in such quantity that the full requirements as to silica are met, and those of alkali are made up by addition of sodium carbonate, or in such quantity that the full requirements of alkali are met, and the extra silica thus introduced accounted for by the addition of calcium carbonate. Calcination with sintering is affected at about 1100‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE526857X | 1938-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526857A true GB526857A (en) | 1940-09-26 |
Family
ID=6553115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9536/39A Expired GB526857A (en) | 1938-05-05 | 1939-03-27 | Process for the production of sinter phosphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526857A (en) |
-
1939
- 1939-03-27 GB GB9536/39A patent/GB526857A/en not_active Expired
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