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 processing

Info

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
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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
Application number
DET30391D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DET30391D priority Critical patent/DE497693C/en
Application granted granted Critical
Publication of DE497693C publication Critical patent/DE497693C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment 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)

P A T E N T A N S P R U C H : verfahren zur beschleunigten Sedimentation schwer absetzbarer Aufschlämmungen der Erzaufbereitung usw. mit Ausnahme von Kohlenaufschlämmungen, gekennzeichnet durch den Zusatz wäßriger Lösungen von Leim unrl Stärkearten in Mengen von 1 bis 5 mg pro Liter der Aufschlämmungen. P A T E N T A N S P R U C H: procedure for accelerated sedimentation hard-to-settle slurries from ore processing, etc. with the exception of coal slurries, characterized by the addition of aqueous solutions of glue and types of starch in quantities from 1 to 5 mg per liter of the slurries.
DET30391D 1925-05-23 1925-05-23 Process for the accelerated sedimentation of difficult to settle slurries in ore processing Expired DE497693C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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