DE749635C - Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water - Google Patents

Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water

Info

Publication number
DE749635C
DE749635C DEE55110D DEE0055110D DE749635C DE 749635 C DE749635 C DE 749635C DE E55110 D DEE55110 D DE E55110D DE E0055110 D DEE0055110 D DE E0055110D DE 749635 C DE749635 C DE 749635C
Authority
DE
Germany
Prior art keywords
foam
fresh water
floated
production
pure carbon
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
DEE55110D
Other languages
German (de)
Inventor
Dr Phil Wilhelm Schaefer
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.)
ERZ U KOHLE FLOTATION GmbH
Original Assignee
ERZ U KOHLE FLOTATION GmbH
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 ERZ U KOHLE FLOTATION GmbH filed Critical ERZ U KOHLE FLOTATION GmbH
Priority to DEE55110D priority Critical patent/DE749635C/en
Application granted granted Critical
Publication of DE749635C publication Critical patent/DE749635C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B03D1/06—Froth-flotation processes differential

Landscapes

  • Physical Water Treatments (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Description

Verfahren zur Herstellung von Reinstkohle nach dem Schaumschwimmverfahren, bei dem die Schaumerzeugnisse in mehreren Stufen unter ständiger Frischwasserzufuhr nachgeschwommen werden Die Erfindung betrifft ein Verfahren zur Herstellung von Reinstkohle nach dem Schaumschwimmverfahren, bei dem die Schaumerzeugnisse in mehreren Stufen unter ständiger Fri.schwasserzufuhr nachgeschwommen werden, wie es in dein Hauptpatent 746 179 beschrieben ist. Gemäß dem Hauptpatent werden die Schaumerzeugnisse vor jeder Nachreinigungsstufe auf Vakuumfiltern entwässert, anschließend daran in Frischwasser aufgeschlämmt und ein- oder mehrfach nachgeschwommen. Das Verfahren nach dem Hauptpatent, d. h. die Zwischenentwässerung der Schaumerzeugnisse auf Vakuumfiltern, wird im allgemeinen dann anzuwenden sein, wenn eine gröbere Zerkleinerung der Kohle vor der Schaumschwimmaufbereitung, z. B. auf unter o,6 mm ausreicht. In weiterer Ausgestaltung des Gedankens des Hauptpatents wird gemäß der Erfindung vorgeschlagen, die Entwässerung .der Schaumerzeugnisse vor jeder Nachreinigungsstufe auf einer Schleuder vorzunehmen. Eine solch;. Zwischenentwässerung wird vorzugsweise für feiner aufgeschlossene Kohle von beispielsweise unter o,2 mm anzuwenden sein. Die -Verwendung von Schleudern zum Entwässern ist an sich bekannt. Ihre Anwendung im Rahmen der im Hauptpatent unter Schutz gestellten Kombination im Austausch gegen Vakuumfilter ergibt eine wesentliche Verbesserung und Vereinfachung der bisher bekannten Verfahren, da durch die zwischengeschaltete Entwässerung das in der Trübe emulgierte Schwimmittel sowie auch die kolloidalen Bestandteile und gegebenenfalls auch gelöste Salze entfernt werden. Es ist dabei weiter von Vorteil, wenn die Gewebespannungen der Schleuder so gewählt werden, dar die aschenreicheren Feinstschlämme mit dem Filtrateva'sser'-abgelien. -Process for the production of pure carbon according to the foam swimming process, in which the foam products in several stages with a constant supply of fresh water The invention relates to a method for producing Pure carbon according to the foam swimming process, in which the foam products in several Steps can be swum under constant supply of fresh water, as it is in your Main patent 746 179 is described. According to the main patent, the foam products dehydrated on vacuum filters before each post-cleaning stage, then in Fresh water slurried and swum once or several times. The procedure according to the main patent, d. H. intermediate drainage of foam products on vacuum filters, will generally be used when a coarser crushing of the coal before the foam swim preparation, e.g. B. is sufficient to less than 0.6 mm. In further Development of the idea of the main patent is proposed according to the invention, the dewatering of the foam products before each post-cleaning stage on one To make a sling. One such ;. Intermediate drainage is preferred for finer digested coal of, for example, less than 0.2 mm must be used. The usage from centrifuging to dewatering is known per se. Your application within the Combination protected in the main patent in exchange for vacuum filter results in a significant improvement and simplification of the previously known processes, as the floating agent emulsified in the sludge due to the interposed dewatering as well as the colloidal components and possibly also solved Salts are removed. It is also advantageous when the tissue tension the centrifuge can be chosen so that the ash-rich fine sludge with the Filtratevasser'-drained. -

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Reinstkohle nach dem SchaumSchwimmverfahren, bei dem die Schaumerzeugnisse i» mehreren Stufen unter ständiger Frischwasserzufuhr nachgeschwommen werden gemäß Hauptpatent 746 179, dadurch gekennzeichnet, daß die Entwässerung der Schaumerzeugnisse vor jeder Nachreinigungsstufe auf einer Schleuder erfolgt. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: :>Flotation< von 1Tayer und Schranz, 1931, S. 189 Absatz 1, Zeile 6.PATENT CLAIM: Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water according to main patent 746 179, characterized in that the foam products are dewatered before each subsequent cleaning stage on a centrifuge. To distinguish the subject of the application from the state of the art, the following publication was considered in the granting procedure:> Flotation <by 1Tayer and Schranz, 1931, p. 189, paragraph 1, line 6.
DEE55110D 1941-07-20 1941-07-20 Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water Expired DE749635C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE55110D DE749635C (en) 1941-07-20 1941-07-20 Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE55110D DE749635C (en) 1941-07-20 1941-07-20 Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water

Publications (1)

Publication Number Publication Date
DE749635C true DE749635C (en) 1944-11-28

Family

ID=7082021

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE55110D Expired DE749635C (en) 1941-07-20 1941-07-20 Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water

Country Status (1)

Country Link
DE (1) DE749635C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864833C (en) * 1948-12-31 1953-01-29 Erich Dr-Ing Noetzold Extraction of ultra-pure coal with the least ashes by flotation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864833C (en) * 1948-12-31 1953-01-29 Erich Dr-Ing Noetzold Extraction of ultra-pure coal with the least ashes by flotation

Similar Documents

Publication Publication Date Title
DE749635C (en) Process for the production of pure carbon according to the foam swimming process, in which the foam products are floated in several stages with a constant supply of fresh water
DE623305C (en) Process for the recovery of fibers from waste
DE348769C (en) Process for the production of alkali-free, amorphous silica
DE905479C (en) Process for the treatment of water
DE946433C (en) Process for the production of silica in highly active, voluminous powder form
DE584371C (en) Process for the production of silica solutions
DE544815C (en) Process for the preparation of monoazo dyes
DE501606C (en) Process for the separation of such naturally occurring products which assume colloidal distribution in aqueous suspension
DE371601C (en) Process for cleaning or refining alkaline earth carbonates and magnesium carbonate
DE489314C (en) Process for the production of durable, colloidal solutions of silver or mercury in addition to silver in vegetable and animal oils, fats or their fatty acids
DE897843C (en) Process for the production of a vaccine suitable for the extraction of extremely fine-grained alumina hydrate from alkali aluminate liquors
DE746179C (en) Process for the production of pure carbon using the foam swimming process
DE358679C (en) Process for displacing the washing water from cellulose esters
DE728591C (en) Process for the preparation of monoazo dyes
DE628837C (en) Process for the production of artificial threads or the like from viscose
DE501305C (en) Production of base-exchanging substances that can be used for technology
DE864232C (en) Process for the preparation of native sulfur-containing minerals
DE557228C (en) Extraction of beryllium salts from minerals containing beryllium
DE360687C (en) Process for the production of naphthalene, anthracene and the like Like. From tea oils and similar liquids
DE479225C (en) Process for the production of valuable colorations on cellulose esters and ethers
DE743746C (en) Production of ion exchangers from lignite
DE382923C (en) Process for the production of yellow Kuepen dyes
DE428789C (en) Thicken thin sulfuric acid
DE735414C (en) Process for the production of bitumen-bound lightweight insulation bodies
DE567844C (en) Process for the separation of mixtures of salts of alkali nitrate and ammonium chloride obtained by the reaction of alkali chloride with ammonium nitrate