DE58823C - Process for the production of an artificial, non-blooming stone mass - Google Patents

Process for the production of an artificial, non-blooming stone mass

Info

Publication number
DE58823C
DE58823C DENDAT58823D DE58823DA DE58823C DE 58823 C DE58823 C DE 58823C DE NDAT58823 D DENDAT58823 D DE NDAT58823D DE 58823D A DE58823D A DE 58823DA DE 58823 C DE58823 C DE 58823C
Authority
DE
Germany
Prior art keywords
blooming
production
artificial
mass
magnesium
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 - Lifetime
Application number
DENDAT58823D
Other languages
German (de)
Original Assignee
E. O. schmiel in Leigzig-Gohlis, Sedanstr. 5
Publication of DE58823C publication Critical patent/DE58823C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C04B28/32Magnesium oxychloride cements, e.g. Sorel cement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Finishing Walls (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMTPATENT OFFICE

Die Herstellung künstlicher Steinmasse aus Chlormagnesium bezw. anderen Magnesiumsalzen und gebranntem Magnesit ist bekannt; die bisher dargestellten derartigen Steine leiden indefs an verschiedenen Mängeln, von denen das. sogenannte Ausblühen (Erscheinen von Chlormagnesium etc. an der Oberfläche) und die mangelhafte Beständigkeit der Steine gegen Feuchtigkeit und Witterungseinflüsse, das Bröcklig- und Brüchigwerden hervorzuheben sind. Die Ursachen eines Theiles dieser Mängel scheinen darin zu liegen, dafs das im Handel vorkommende Chlormagnesium u. s. w. mit fremden Salzen verunreinigt ist, welche einer innigen Verbindung der Masse hinderlich sind und die Festigkeit beeinträchtigen. Mittelst nachstehend beschriebenen Verfahrens werden Steine hergestellt, welche obige Mängel nicht zeigen, sondern in Bezug auf Festigkeit und Wetterbeständigkeit vollkommen befriedigen.The production of artificial stone mass from chlorine magnesium bezw. other magnesium salts and burnt magnesite are known; the stones of this type shown so far, however, suffer from various defects, of which so-called blooming (appearance of magnesium chloride etc. on the surface) and the inadequate resistance of the stones to moisture and weathering, that Crumbly and brittle ones are to be emphasized. The causes of some of these defects seem to lie in the fact that the commercially available magnesium chloride and so on are involved foreign salts is contaminated, which are a hindrance to an intimate connection of the mass and affect the strength. Means the procedure described below will be Stones produced, which do not show the above defects, but in terms of strength and Completely satisfy weather resistance.

Behufs Reinigung wird rohes Chlormagnesium zunächst in Wasser gelöst und dann werden die verunreinigenden Metalle (Eisen, Calcium u. s. w.) mittelst beliebiger Fällungsmittel (kieselsaures Natron oder Kali, kohlensaures Natron . oder Kali u. s.w.) gefällt. Durch diese Fällungs- : mittel wird zugleich ein Theil des Magnesiums niedergeschlagen. Der entstandene Magnesium-.niederschlag reifst die fremden Metalle mit nieder und setzt sich gut ab. Hierdurch wird eine chlornatrium -, chlorkalium- etc. haltige Chlormagnesiumlauge erhalten, welche, direct unter Umgehung des Abdampfens mit gebranntem Magnesit versetzt, eine in kurzer Zeit fest werdende Steinmasse erzielt; dasselbe genügt allen obengenannten Anforderungen. (Das Ausblühen etc. dürfte dadurch verhindert werden, dafs die Alkalichloride, welche in dem erzeugten Stein vorhanden sind, mit dem betreffenden Magnesiumsalz Doppelverbindungen bilden.) Zur Herstellung einer besonders homogenen Masse behufs Erzeugung von Abgüssen u. dergl. Gegenstände versetze man endlich die entstandene Steinmasse vor ihrem Erstarren mit feingepulvertem Schwerspath, FeIdspath und ähnlichen Mineralien. Durch diese Fällmassen werden Poren und Luftblasen etc. vermieden, die erzeugte Steinmasse wird daher consistenter und härter und durch ihre Dichtigkeit den Einflüssen von Wasser und Luft, namentlich in ihrem Innern, unzugänglicher.For the purpose of purification, raw magnesium chloride is first dissolved in water and then the contaminating metals (iron, calcium, etc.) are precipitated by means of any precipitating agent (silicic acid soda or potash, carbonate soda or potash, etc.). Through this precipitation: one part is simultaneously depressed the magnesium medium. The resulting magnesium precipitate ripens down the foreign metals with it and settles well. In this way, a chloromagnesium liquor containing sodium chloride, potassium chloride, etc. is obtained, which, by bypassing the evaporation, achieves a stone mass which solidifies in a short time with burnt magnesite; the same thing satisfies all of the above requirements. (Blooming, etc., should be prevented by the fact that the alkali chlorides, which are present in the stone produced, form double compounds with the magnesium salt concerned.) To produce a particularly homogeneous mass for the production of casts and similar objects, one finally relocates the resulting material Stone mass before it solidifies with finely powdered Schwerspath, FeIdspath and similar minerals. These precipitating masses avoid pores and air bubbles etc., the stone mass produced is therefore more consistent and harder and, because of its impermeability, more inaccessible to the influences of water and air, especially inside.

Claims (2)

Patent-AnSprüche:Patent claims: 1. Verfahren zur Herstellung einer künstlichen, nicht ausblühenden Steinmasse, darin bestehend, dafs zu roher Chlormagnesiumlösung Alkaliverbindungen (Kali - oder Natronsilicat, -carbonat etc.) Zugesetzt werden, so dafs mit einem Theil des Magnesiums die fremden Metalle und Kalkverbindungen niedergeschlagen werden und die geklärte Chlornatrium bezw. Chlorkalium etc. enthaltende Lauge mit gebranntem Magnesit versetzt wird.1. Process for the production of an artificial, non-blooming stone mass, consisting of that for crude magnesium chlorine solution alkali compounds (potash or Sodium silicate, carbonate, etc.) are added, so that with a part of the magnesium the foreign metals and lime compounds are precipitated and the clarified Sodium chloride resp. Lye containing calcium chloride etc. with burnt magnesite is moved. 2. Behufs Erhöhung der Homogenität der nach obigem Verfahren erhaltenen Masse der Zusatz von Schwerspath, Feldspath und ähnlichen Mineralien.2. To increase the homogeneity of the mass obtained by the above process the addition of Schwerspath, Feldspar and similar minerals.
DENDAT58823D Process for the production of an artificial, non-blooming stone mass Expired - Lifetime DE58823C (en)

Publications (1)

Publication Number Publication Date
DE58823C true DE58823C (en)

Family

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Family Applications (1)

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DENDAT58823D Expired - Lifetime DE58823C (en) Process for the production of an artificial, non-blooming stone mass

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Country Link
DE (1) DE58823C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014910B (en) * 1955-07-18 1957-08-29 Franz Jakubeit Process for the production of coverings such as stone wood floors
DE1278918B (en) * 1964-12-28 1968-09-26 Goerner & Engels K G Cold casting compound, especially for casting deck and bulkhead penetrations on ships
EP0419449A1 (en) * 1989-09-22 1991-03-27 MAGINDAG Steirische Magnesit-Industrie Aktiengesellschaft Water resistant sorel cement compositions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014910B (en) * 1955-07-18 1957-08-29 Franz Jakubeit Process for the production of coverings such as stone wood floors
DE1278918B (en) * 1964-12-28 1968-09-26 Goerner & Engels K G Cold casting compound, especially for casting deck and bulkhead penetrations on ships
EP0419449A1 (en) * 1989-09-22 1991-03-27 MAGINDAG Steirische Magnesit-Industrie Aktiengesellschaft Water resistant sorel cement compositions

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