[go: up one dir, main page]

DE361492C - Process for the production of Lithopon with simultaneous extraction of barium hydroxide - Google Patents

Process for the production of Lithopon with simultaneous extraction of barium hydroxide

Info

Publication number
DE361492C
DE361492C DEF47418D DEF0047418D DE361492C DE 361492 C DE361492 C DE 361492C DE F47418 D DEF47418 D DE F47418D DE F0047418 D DEF0047418 D DE F0047418D DE 361492 C DE361492 C DE 361492C
Authority
DE
Germany
Prior art keywords
lithopon
barium hydroxide
production
simultaneous extraction
barium
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
DEF47418D
Other languages
German (de)
Inventor
Dr Christian J Hansen
Dr Walter Strube
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Priority to DEF47418D priority Critical patent/DE361492C/en
Application granted granted Critical
Publication of DE361492C publication Critical patent/DE361492C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/04—Compounds of zinc
    • C09C1/06—Lithopone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Verfahren zur Herstellung von Lithopon unter gleichzeitiger Gewinnung von Bariumhydroxyd. Es wurde die überraschende Bobachtung gemacht, daß sich feste basische Zinksulfate, besonders leicht gefällte Produkte, mit Schwefelbarium in außerordentlich glatter Reaktion. zu emischen von Zinksulfid und _ Bariumsulfat (Lithopon) einerseits, Bariumhydroxyd andererseits umsetzen lassen. Die Umsetzung findet bereits bei gewöhnlicher Temperatur, schneller beim Erwärmen statt.Process for the production of Lithopon with simultaneous extraction of barium hydroxide. The surprising observation was made that solid basic zinc sulfates, particularly easily precipitated products, react extremely smoothly with barium sulphate. to mix zinc sulphide and barium sulphate (Lithopon) on the one hand and barium hydroxide on the other. The reaction already takes place at normal temperature, faster when heated.

Diese Arbeitsweise ist von besonderer technischer Bedeutung, da sie gestattet, das nur schwer zugängliche Bariumhydroxyd in außerordentlich wirtschaftlicher Weise als Nebenprodukt der Lithoponfabrikation zu gewinnen.This way of working is of particular technical importance because it allows barium hydroxide, which is difficult to access, in an extremely economical way Way to be obtained as a by-product of lithopon manufacture.

Beispiel. zoo Gewichtsteile gefälltes basisches Zinksulfat mit einem Gehalt von 28 Prozent Zink und I I Prozent Schwefelsäure werden mit einer gesättigten Lösung von 7z Gewichtsteilen Schwefelbarium unter Erwärmen bis zum Verschwinden des Schwefelbariums gerührt. Die Umsetzung ist bei 7o bis 8o° in kurzer Zeit beendet. Das Reaktionsgemisch wird filtriert und das Filtrat in bekannter Weise auf Bariumhydroxyd, die abfiltrierte Rohfarbe auf fertiges Lithopon verarbeitet. Hierbei wird ein hochwertiges, oxydfreies Lithopon von besonders guten Eigenschaften erhalten. .Example. zoo parts by weight of precipitated basic zinc sulphate with a content of 28 percent zinc and II percent sulfuric acid are stirred with a saturated solution of 7z parts by weight of sulphurous barium with heating until the sulphurous barium disappears. The reaction is completed in a short time at 7o to 8o °. The reaction mixture is filtered and the filtrate is processed in a known manner on barium hydroxide, the filtered raw paint on finished lithopone. A high-quality, oxide-free lithopone with particularly good properties is obtained here. .

Claims (1)

PATENT-ANSYRLTCH Verfahren zur Herstellung von Lithopon unter gleichzeitiger Gewinnung von Bariumhydroxyd, dadurch gekennzeichnet, daß feste basische Zinksulfate mit Schwefelbarium umgesetzt werden.PATENT-ANSYRLTCH Process for the production of Lithopon with simultaneous Extraction of barium hydroxide, characterized in that solid basic zinc sulfates be reacted with sulfur barium.
DEF47418D 1920-07-31 1920-07-31 Process for the production of Lithopon with simultaneous extraction of barium hydroxide Expired DE361492C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF47418D DE361492C (en) 1920-07-31 1920-07-31 Process for the production of Lithopon with simultaneous extraction of barium hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF47418D DE361492C (en) 1920-07-31 1920-07-31 Process for the production of Lithopon with simultaneous extraction of barium hydroxide

Publications (1)

Publication Number Publication Date
DE361492C true DE361492C (en) 1922-10-14

Family

ID=7101611

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF47418D Expired DE361492C (en) 1920-07-31 1920-07-31 Process for the production of Lithopon with simultaneous extraction of barium hydroxide

Country Status (1)

Country Link
DE (1) DE361492C (en)

Similar Documents

Publication Publication Date Title
DE361492C (en) Process for the production of Lithopon with simultaneous extraction of barium hydroxide
DE2156648C3 (en) Process for the preparation of 2- [4,4'-bis- (dimethylaamino) -benzohydryl] -5-dimethylamino-benzoic acid
DE618868C (en) Process for the production of white zinc paints
DE593269C (en) Process for the production of high quality iron oxide red paints with simultaneous production of sodium sulfate
DE368521C (en) Process for the production of tanning substances
DE582039C (en) Process for the production of caramel from starch
DE1276635B (en) Process for the production of potassium sorbate
DE602499C (en) Process for the production of composite titanium pigments
DE358429C (en) Process for the production of gold sulfur
DE744937C (en) Production of pure white zinc white from zinc lye containing magnesium and calcium
DE429179C (en) Process for the production of tanning agents
DE820000C (en) Process for the production of sulfur-containing reaction products from formaldehyde and hydrogen sulfide
DE580829C (en) Process for decarboxylating mono- or polybasic aromatic carboxylic acids
DE557809C (en) Production of alkali thiosulphate solutions
AT117047B (en) Process for the preparation of ethylidene diacetate.
DE567635C (en) Process for the preparation of the disulfuric acid ester of 2-aminoanthrahydroquinone
DE870276C (en) Process for the preparation of a double salt of p-amino-salicylic acid
DE539330C (en) Process for the production of salts of thiodiglycolic acid with alkaline earth metals
DE551776C (en) Process for the production of rhodanides
DE662247C (en) Production of purely monoclinic, light-resistant lead chromate
DE476397C (en) Process for breaking up chrome iron stone
DE556457C (en) Process for the production of rhodane compounds
DE747417C (en) Manufacture of chromium oxide green
AT32644B (en) Process for making a tar soap.
AT85469B (en) Process for the production of artificial tanning agents.