DE36366C - Process for processing lime or calcium carbonate-containing phosphates - Google Patents
Process for processing lime or calcium carbonate-containing phosphatesInfo
- Publication number
- DE36366C DE36366C DENDAT36366D DE36366DA DE36366C DE 36366 C DE36366 C DE 36366C DE NDAT36366 D DENDAT36366 D DE NDAT36366D DE 36366D A DE36366D A DE 36366DA DE 36366 C DE36366 C DE 36366C
- Authority
- DE
- Germany
- Prior art keywords
- lime
- phosphates
- sulphurous
- rock
- treated
- 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 - Lifetime
Links
- 235000021317 phosphate Nutrition 0.000 title claims description 18
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title 2
- 229960003563 Calcium Carbonate Drugs 0.000 title 1
- 229910000019 calcium carbonate Inorganic materials 0.000 title 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 title 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 12
- 235000015450 Tilia cordata Nutrition 0.000 claims description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 11
- 239000011435 rock Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K Iron(III) phosphate Chemical class [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H Tricalcium phosphate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N Calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/02—Pretreatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Treating Waste Gases (AREA)
Description
PATENTSCHRIFTPATENT LETTERING
KLASSE 16: Düngerbereitung.CLASS 16: Fertilizer preparation.
Patcntirt im Deutschen Reiche vom 23. Juni 1885 ab.Licensed in the German Empire on June 23, 1885.
Die vorliegende Erfindung betrifft ein neues Verfahren, um unter Vermittlung von schwefliger Säure den in Rohphosphaten (Schlacken) enthaltenen freien oder kohlensauren Kalk in schwefelsauren Kalk überzuführen.The present invention relates to a new method to under the mediation of sulphurous Acid the free or carbonate of lime contained in rock phosphates (slags) in to transfer sulphate of lime.
Zu diesem Zwecke werden die Rohphosphate eventuell geröstet, gepulvert, mit Wasser angerührt und dann mit schwefliger Säure oder solche enthaltenden Gasen so' lange behandelt, bis sämmtlicher freier oder kohlensaurer Kalk in schwefligsauren umgewandelt ist. Nun dampft man entweder mit oder nach Abfiltriren der überstehenden Flüssigkeit zur Trockne ein und glüht im Luftstrom eventuell unter gleichzeitiger Verwendung von Wasserdampf, bis der schwefligsaure Kalk in schwefelsauren übergeführt ist. Π Aus dem Glührückstand kann mit verdünnter Cd Säure Calciumphosphat ausgelaugt und nach j bekannten Methoden verarbeitet werden.For this purpose the rock phosphates are possibly roasted, powdered, mixed with water and then treated with sulphurous acid or gases containing it until all the free or carbonate of lime has been converted into sulphurous acid. Now, either with or after filtering off the supernatant liquid, it is evaporated to dryness and annealed in a stream of air, possibly with the simultaneous use of steam, until the sulphurous lime is converted into sulphuric acid. Π Calcium phosphate can be leached from the residue on ignition with dilute Cd acid and processed according to known methods.
Enthalten die Rohphosphate einen Theil der Phosphorsäure an Eisen etc. gebunden, so kann man dieselbe von letzterem trennen, indem man entweder die Rohphosphate nach P. R. No. 32096 oder dem vorstehenden Verfahren mit schwefliger Säure behandelt und erst unter Luftabschlufs und dann unter Luftzutritt eventuell unter Verwendung von Wasserdampf glüht oder dasselbe unter Zusatz einer den Eisen- etc. Phosphaten äquivalenten Menge Alkalichlorid ausführt.If the rock phosphates contain part of the phosphoric acid bound to iron, etc., then one can separate the latter from the latter by either adding the rock phosphates P. R. No. 32096 or the above process with sulphurous acid and first with the exclusion of air and then with the admission of air, possibly with the use of steam glows or the same with the addition of an amount equivalent to the iron etc. phosphates Alkali chloride executes.
Endlich kann mart auch eine den Eisen- etc. Phosphaten äquivalente Menge Alkalichlorid zusetzen und die Masse dann nach P. R. No. 32096 oder dem eingangs beschriebenen Verfahren mit schwefliger Säure etc. behandeln, oder man behandelt die Rohphosphate erst mit schwefliger Säure etc. und glüht dann mit Alkalichlorid, eventuell unter Verwendung von Wasserdampf.Finally, mart can also add an amount of alkali metal chloride equivalent to that of iron etc. phosphates and then the mass according to P. R. No. 32096 or the method described above treat with sulphurous acid, etc., or treat the rock phosphates first with sulphurous Acid etc. and then glow with alkali chloride, possibly using Steam.
Während in der ersten dieser Modificationen die Zerlegung der Eisen- etc. Phosphate durch das beim Glühen des Calciumsuliits unter Luftabschlufs entstehende Schwefelcalcium bewirkt wird, erreicht man in den übrigen Modification nen denselben Effect dadurch, dafs das Alkalichlorid mit dem Sulfit, Sulfid und Sulfat des Calciums sic.h zu einer leichtflüssigen Schmelze vereinigt, in welcher nun Calciumchlorid als existirend angenommen werden kann.While in the first of these modifications the decomposition of the iron, etc. phosphates was carried out the calcium sulphide produced when the calcium sulite is annealed in the absence of air the same effect is achieved in the other modifications by adding the alkali metal chloride with the sulphite, sulphide and sulphate of calcium form a fluid melt united, in which calcium chloride can now be assumed to exist.
Dieses wirkt bekanntlich auf Eisen-etc. Phosphate in der Weise ein, dafs die Chloride dieser Schwermetalle neben Calciumphosphat gebildet werden, welche erstere bei Gegenwart von Luft oder Wasserdampf in Oxyde einer-" seits. und Chlor oder Salzsäure andererseits zerfallen.As is well known, this has an effect on iron etc. Phosphates in such a way that the chlorides of these heavy metals are formed alongside calcium phosphate, and the former in the presence of air or water vapor into oxides on the one hand and chlorine or hydrochloric acid on the other disintegrate.
Claims (1)
; a) die Rohphosphate nach P. R. No 32096 oder dem unter 1. angeführten Verfahren mit schwefliger Säure behandelt und erst unter Luftabschlufs, dann unter Luftzutritt eventuell unter Verwendung von Wasserdampf geglüht werden, oder dafs man
b) das unter 2 a) angegebene Verfahren unter Zusatz 'einer den Eisdn- etc. - Phosphaten äquivalenten Menge Alkalichlorid ausführt, oderThe decomposition of iron etc. phosphates contained in rock phosphates etc. with simultaneous or previous conversion of the free or carbonate of lime into sulfuric acid lime through the mediation of sulphurous acid, in that:
; a) the rock phosphates are treated with sulphurous acid according to PR No 32096 or the process listed under 1. and first ignited with the exclusion of air, then with access to air, possibly with the use of steam, or that one
b) carries out the process specified under 2 a) with the addition of an amount of alkali metal chloride equivalent to the ice thin phosphates, or
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE36366C true DE36366C (en) |
Family
ID=312181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT36366D Expired - Lifetime DE36366C (en) | Process for processing lime or calcium carbonate-containing phosphates |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE36366C (en) |
-
0
- DE DENDAT36366D patent/DE36366C/en not_active Expired - Lifetime
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