DE497693C - Process for the accelerated sedimentation of difficult to settle slurries in ore processing - Google Patents
Process for the accelerated sedimentation of difficult to settle slurries in ore processingInfo
- Publication number
- DE497693C DE497693C DET30391D DET0030391D DE497693C DE 497693 C DE497693 C DE 497693C DE T30391 D DET30391 D DE T30391D DE T0030391 D DET0030391 D DE T0030391D DE 497693 C DE497693 C DE 497693C
- Authority
- DE
- Germany
- Prior art keywords
- slurries
- settle
- difficult
- ore processing
- accelerated sedimentation
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur beschleunigten Sedimentation schwer absetzbarer Aufschlämmungen der Erzaufbereitung Es ist bereits vorgeschlagen worden, zur Beschleunigung der Sedimentation von Aufschlämmungen wäßrigen Extrakte von Caraghenmoos zu verwenden. Die weitere Forschung und die Prüfung weiterer Kolloide hat ergeben, daß auch Leim und Gelatine sowie Stärke in ganz geringen Mengen, etwa 1 bis 5 mg pro Liter Aufschlämmung, als Zusatz zu Erzschlämmen sowie auch Aufschlämmungen aus chemischen Fabriken die Fähigkeit haben. wesentliche Sedimentationsbeschleunigungen herbeizuführen.Process for accelerated sedimentation of slurries that are difficult to settle It has already been proposed to speed up the ore processing Sedimentation of slurries to use aqueous extracts of caraghen moss. Further research and testing of other colloids has shown that glue too and gelatin and starch in very small amounts, about 1 to 5 mg per liter of slurry, as an additive to ore slurries as well as slurries from chemical factories Have ability. bring about significant sedimentation accelerations.
Es ist bereits vorgeschlagen worden, Waschwässer von Kohlen durch verschiedene Salze und Kolloide zu flocken, wobei u. a. It has already been proposed to wash water from coals by means of it to flocculate various salts and colloids, including, inter alia.
Leim und Gelatine genannt wurden. Die Konzentrationsverhältnisse bei diesen bekannten Verfahren sind jedoch ganz andere als die, welche bei Erzaufschlämmungen in Betracht kommen, die in der Fachwelt als schwer absetzbar bekannt sind. Würde man das den Erfindungsgegenstand bildende Verfahren für Erzaufschlämmungen anwenden. deren Konzentrationen so gering sind Die im allgemeinen @ie Kohlenwaschwässer, so wäre las Verfahren nicht anwendbar.Glue and gelatin were named. The concentration ratios at however, these known processes are quite different from those used with ore slurries come into consideration, which are known in the professional world to be difficult to dispose of. Would to use the subject method for ore slurries. whose concentrations are so low The generally @ie coal washing waters, so the procedure would not be applicable.
Die bei den bekannten Verfahren angegebenen Gelatine- und Leimmengen betragen ein Vielfaches derjenigen Menge, die für die beschleunigte Sedimentation von Erzaufschlämmungen in Betracht kommen. Derartig große Mengen würden für Erzaufschlämmungen keine beschleunigte, sondern infolge der Schutzkolloidwirkung eine verzögerte Sedimentation herbeiführen. The amounts of gelatin and glue specified for the known processes are a multiple of the amount required for accelerated sedimentation ore slurries. Such large quantities would be used for ore slurries not accelerated, but rather delayed sedimentation due to the protective colloid effect bring about.
Als Beispiel für einen in der Praxis ausgeführten Versuch sei folgendes angegeben: Es wurden 0,51 eines 10%igen Ilseder Eisentonschlammes in einem 500 ccm Standgefäß durch 1 mg Lederleim in 1,5 Minuten, durch 2 mg Gelatine in 2 Minuten und durch 2 mg lösliche Stärke ebenfalls in 2 Minuten geklärt, während ohne diese Zusätze erst nach 35 Minuten eine unvollkommene Klärung stattfand. The following is an example of an experiment carried out in practice stated: There were 0.51 of a 10% igen Ilseder Eisentonschlammes in a 500 ccm 1 mg leather glue in 1.5 minutes, 2 mg gelatine in 2 minutes and cleared by 2 mg of soluble starch also in 2 minutes while without this Additions took place only after 35 minutes an imperfect clarification.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET30391D DE497693C (en) | 1925-05-23 | 1925-05-23 | Process for the accelerated sedimentation of difficult to settle slurries in ore processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET30391D DE497693C (en) | 1925-05-23 | 1925-05-23 | Process for the accelerated sedimentation of difficult to settle slurries in ore processing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE497693C true DE497693C (en) | 1930-05-10 |
Family
ID=7555550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET30391D Expired DE497693C (en) | 1925-05-23 | 1925-05-23 | Process for the accelerated sedimentation of difficult to settle slurries in ore processing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE497693C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1052321B (en) * | 1954-06-23 | 1959-03-12 | Basf Ag | Process for sedimentation of solids in coal washing water |
DE1063993B (en) * | 1955-06-28 | 1959-08-27 | Basf Ag | Process for accelerating the sedimentation of solids suspended or colloidally dissolved in water |
DE1114151B (en) * | 1954-01-14 | 1961-09-28 | Dow Chemical Co | Process for flocculating finely divided solids from suspensions |
DE1122461B (en) * | 1954-06-22 | 1962-01-25 | Dow Chemical Co | Process for concentrating and separating finely divided solid bodies from aqueous suspensions |
DE1129424B (en) * | 1957-10-28 | 1962-05-17 | Union Carbide Corp | Process for the coagulation of carbonaceous solids from an aqueous suspension |
-
1925
- 1925-05-23 DE DET30391D patent/DE497693C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1114151B (en) * | 1954-01-14 | 1961-09-28 | Dow Chemical Co | Process for flocculating finely divided solids from suspensions |
DE1122461B (en) * | 1954-06-22 | 1962-01-25 | Dow Chemical Co | Process for concentrating and separating finely divided solid bodies from aqueous suspensions |
DE1137401B (en) * | 1954-06-22 | 1962-10-04 | Dow Chemical Co | Process for concentrating and separating finely divided solids from their aqueous suspensions |
DE1052321B (en) * | 1954-06-23 | 1959-03-12 | Basf Ag | Process for sedimentation of solids in coal washing water |
DE1063993B (en) * | 1955-06-28 | 1959-08-27 | Basf Ag | Process for accelerating the sedimentation of solids suspended or colloidally dissolved in water |
DE1129424B (en) * | 1957-10-28 | 1962-05-17 | Union Carbide Corp | Process for the coagulation of carbonaceous solids from an aqueous suspension |
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