DE458191C - Process for the production of crystallized sulphates of iron, copper, zinc and nickel - Google Patents

Process for the production of crystallized sulphates of iron, copper, zinc and nickel

Info

Publication number
DE458191C
DE458191C DEA49573D DEA0049573D DE458191C DE 458191 C DE458191 C DE 458191C DE A49573 D DEA49573 D DE A49573D DE A0049573 D DEA0049573 D DE A0049573D DE 458191 C DE458191 C DE 458191C
Authority
DE
Germany
Prior art keywords
sulphates
crystallized
iron
zinc
copper
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
DEA49573D
Other languages
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.)
GEORG AGDE DR
Original Assignee
GEORG AGDE DR
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 GEORG AGDE DR filed Critical GEORG AGDE DR
Priority to DEA49573D priority Critical patent/DE458191C/en
Application granted granted Critical
Publication of DE458191C publication Critical patent/DE458191C/en
Priority to DEA60862D priority patent/DE579143C/en
Priority to DEA62864D priority patent/DE579144C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G1/00—Methods of preparing compounds of metals not covered by subclasses C01B, C01C, C01D, or C01F, in general
    • C01G1/10—Sulfates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zur Gewinnung von kristallisierten Sulfaten des Eisens, Kupfers, Zinks und Nickels. In der deutschen Patentschrift 431 581 ist ein Verfahren beschrieben zur Gewinnung von kristallisierten Sulfaten des Eisens, Kupfers, Zinks und Nickels, darin bestehend, daß man bereits vor dem Abscheiden der Sulfatkristalle durch Ahkühlen der gesättigten Lösung die für den nächsten. Auflösungsprozeß notwendige Schwefelsäure hinzufügt, dabei aber entsprechend dem Prozentgehalt der Lösung an Sulfat bestimmte Temperaturen und bestimmte Konzentrationen in bezug sowohl auf Schwefelsäure als auch auf Sulfate innehält.Process for the production of crystallized sulphates of iron, Copper, zinc and nickel. In the German patent specification 431 581 is a method described for the extraction of crystallized sulphates of iron, copper, zinc and nickel, consisting in the fact that one already has before the deposition of the sulfate crystals by cooling the saturated solution that for the next. Dissolution process necessary Sulfuric acid is added, but according to the percentage of the solution Sulphate certain temperatures and certain concentrations with respect to both Sulfuric acid as well as sulfates.

Es wurde nun gefunden, daß man dieselbe Wirkung einer Ausbeuteerhöhung an kristallisierten Sulfaten durch die Gegenwart von vorher zugegebener Auffrischungsschwefelsäure erzielt, wenn man Lösungen, die noch mehrere Prozente freier Säure enthalten und nicht besonders aufgefrischt sind, auf Temperaturen abkühlt, die wesentlich unter der Durchschnittsaußentemperatur liegen. Infolge der Entnahme der Kristallwassermengen durch die Sulfate wird dann in der Mutterlauge der Gehalt an freier Säure, die ja doch quantitativ in Lösung bleibt, prozentual so hoch und der Gehalt an Sulfat so niedrig, daß die Mutterlauge bei stark verkürzter Lösezeit mit wirtschaftlichem Erfolg wieder zum Lösen von Metallen benutzt werden kann. Beispiel. 1 o cbm = 13 500 kg einer nicht mehr brauchbaren Abfallbeize mit einem Gehalt von 50 Prozent Eisenvitriol und 5 Prozent Schwefelsäure werden auf I' abgekühlt, dann scheiden sich an den vorhandenen 685o kg Eisenvitriol 515o kg ab, es verbleiben in Lösung 170o kg, d. h. nur 1/4 der vorher vorhandenen Menge, das ist ein Prozentgehalt in der Mutterlauge von nur 13,3 Prozent, der Prozentgehalt an Schwefelsäure steigt gleichzeitig von 5 Prozent auf 7,5 Prozent und die Beizzeit geht bei gleicher Beiztemperatur auf 1/3 herunter. Wird die Lösung auf das Ausgangsvolumen der Beize gebracht, so erhält man I1 25o kg Beize mit 15,I Prozent Eisenvitriol.It has now been found that the same effect of increasing the yield of crystallized sulfates is achieved by the presence of previously added refreshing sulfuric acid if solutions which still contain several percent free acid and are not particularly refreshed are cooled to temperatures which are substantially below the average outside temperature . As a result of the removal of the water of crystallization by the sulphates, the content of free acid in the mother liquor, which remains quantitatively in solution, is so high in percentage and the sulphate content is so low that the mother liquor with a greatly reduced dissolving time is economically successful again Solving metals can be used. Example. 1 o cbm = 13,500 kg of a no longer useful Abfallbeize with a content of 50 percent ferrous sulphate and 5 percent sulfuric acid are cooled to I ', then are deposited on the existing 685o kg ferrous sulphate 515o kg, it remain in solution 170o kg, ie only 1/4 of the amount previously available, that is a percentage in the mother liquor of only 13.3 percent, the percentage of sulfuric acid increases from 5 percent to 7.5 percent at the same time and the pickling time goes down to 1/3 at the same pickling temperature. If the solution is brought to the initial volume of the stain, then I1 25o kg stain with 15.1 percent iron vitriol is obtained.

Claims (1)

PATEN TANSPRUCII Verfahren zur Gewinnung von kristallisierten Sulfaten des Eisens, Kupfers, Zinks und Nickels gemäß Hauptpatent ¢31 581, darin bestehend, daß man die heißen gesättigten Lösungen statt auf Zimmertemperaturen abzukühlen, auf Temperaturen abkühlt, die wesentlich unter den Durchschnittsaußentemperaturen liegen.PATEN TANSPRUCII Process for the production of crystallized sulphates of iron, copper, zinc and nickel according to main patent ¢ 31 581, consisting of that one cools the hot saturated solutions instead of to room temperature, cools down to temperatures that are significantly below the average outside temperatures lie.
DEA49573D 1926-12-23 1926-12-23 Process for the production of crystallized sulphates of iron, copper, zinc and nickel Expired DE458191C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEA49573D DE458191C (en) 1926-12-23 1926-12-23 Process for the production of crystallized sulphates of iron, copper, zinc and nickel
DEA60862D DE579143C (en) 1926-12-23 1931-02-22 Process for the extraction of sulphates of iron, copper, zinc and nickel
DEA62864D DE579144C (en) 1926-12-23 1931-07-28 Process for obtaining crystallized sulphates of iron and other heavy metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA49573D DE458191C (en) 1926-12-23 1926-12-23 Process for the production of crystallized sulphates of iron, copper, zinc and nickel

Publications (1)

Publication Number Publication Date
DE458191C true DE458191C (en) 1928-04-02

Family

ID=6936945

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA49573D Expired DE458191C (en) 1926-12-23 1926-12-23 Process for the production of crystallized sulphates of iron, copper, zinc and nickel

Country Status (1)

Country Link
DE (1) DE458191C (en)

Similar Documents

Publication Publication Date Title
DE458191C (en) Process for the production of crystallized sulphates of iron, copper, zinc and nickel
DE575532C (en) Process for the production of potassium bicarbonate
DE531273C (en) Process for the production of solid crystallized monoalkali metal phosphate, in particular ammonium phosphate
DE489651C (en) Process for the production of high percentage dicalcium phosphate
DE530135C (en) Process for the preparation of 1-aminoanthraquinone-2-sulfonic acid
DE566030C (en) Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal
AT114620B (en) Process for the extraction of easily soluble titanium compounds and for the production of the purest titanium acid.
DE579143C (en) Process for the extraction of sulphates of iron, copper, zinc and nickel
DE1205508B (en) Process for the preparation of concentrated sodium dichromate solutions
DE431581C (en) Process for the production of crystallized sulphates of iron, copper, zinc and nickel
DE371045C (en) Process for the extraction of technically valuable substances from alkali bisulphate
DE387284C (en) Process for the production of chlorammonium
DE382089C (en) Procedure for the repeated use of the same amount of soda when breaking down minerals and the like like
DE496438C (en) Process for the production of fine fiber rayon from copper oxide ammonia cellulose solution
DE535252C (en) Process for the processing of hydrochloric iron pickling liquors for ferrous sulfate and hydrochloric acid
DE584702C (en) Process for the production of boric acid
DE485638C (en) Process for the production of chlorides of iron, copper, nickel and other chlorides according to
DE512130C (en) Process for the production of aluminum compounds and phosphoric acid
DE539076C (en) Process for the production of ammonium sulfate by the alternating decomposition of calcium sulfate and ammonium carbonate
DE365892C (en) Process for the conversion of such metals and alloys, which are not or only slowly dissolved by sulfuric acid, into the corresponding sulfates using nitric acid
DE410926C (en) Process for the digestion of chrome iron stone with nitric acid
DE378909C (en) Process for the preparation of 4-oxynaphthalene-1-aryl ketones
DE465926C (en) Production of sodium sulphite and chlorammonium
DE523523C (en) Process for the preparation of 1,2-diaminoanthraquinone
AT153694B (en) Process for the production of ammonium persulphate from solutions by crystallization.