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DE1173445B - Process for the treatment of mineral carbonates with surface-active substances - Google Patents

Process for the treatment of mineral carbonates with surface-active substances

Info

Publication number
DE1173445B
DE1173445B DEO9089A DEO0009089A DE1173445B DE 1173445 B DE1173445 B DE 1173445B DE O9089 A DEO9089 A DE O9089A DE O0009089 A DEO0009089 A DE O0009089A DE 1173445 B DE1173445 B DE 1173445B
Authority
DE
Germany
Prior art keywords
treatment
carbonates
active substances
carbonate
mineral carbonates
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.)
Pending
Application number
DEO9089A
Other languages
German (de)
Inventor
Pierre Auguste Louis Delfosse
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.)
Omya SAS
Original Assignee
Omya SAS
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 Omya SAS filed Critical Omya SAS
Publication of DE1173445B publication Critical patent/DE1173445B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT 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
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02Compounds of alkaline earth metals or magnesium
    • C09C1/021Calcium carbonates

Landscapes

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

Description

Verfahren zur Behandlung mineralischer Carbonate mit oberflächenaktiven Stoffen Gegenstand des Hauptpatents 958 830 ist ein Verfahren zur Behandlung von natürlich vorkommendem Calciumcarbonat, insbesondere von Kreide in Form von sehr feinen Teilchen, auf die jeweils eine oder mehrere sehr fein zerteilte feste Substanzen aufgebracht werden, die durch Oberflächenkräfte auf den Calciumcarbonätteilchen festgehalten werden.Process for the treatment of mineral carbonates with surface-active substances Substances The subject of the main patent 958 830 is a process for the treatment of naturally occurring calcium carbonate, especially chalk in the form of very fine particles, each containing one or more very finely divided solid substances applied by surface forces on the calcium carbonate be held.

Als feste Substanzen wurden unter anderem die höheren Fettsäuren, wie z. B. Stearinsäure, angeführt. Die Modifizierungsstoffe werden in Mengen von 0,1 bis 40 % bei mindestens 80°C mit dem Calciumcarbonat gemahlen.As solid substances, among other things, the higher fatty acids, such as B. stearic acid. The modifiers are used in amounts of 0.1 to 40% ground with the calcium carbonate at at least 80 ° C.

In diesem Patent wurde unter Betonung des Vorteils die feste Aufbringung von höheren Fettsäuren auf natürlich vorkommende Calciumcarbonate unter Bedingungen beschrieben, unter denen die Fettsäure die Kohlensäure ersetzen kann, so daß ein Teil des Calciumcarbonats in ein Calciumsalz der verwendeten höheren Fettsäure oder Fettsäuren umgewandelt wird.In this patent, emphasis was placed on the fixed application from higher fatty acids to naturally occurring calcium carbonates under conditions described, among which the fatty acid can replace the carbonic acid, so that a Part of the calcium carbonate in a calcium salt of the higher fatty acid used or Fatty acids is converted.

Das Hauptpatent betrifft die Behandlung von natürlich vorkommenden Calciumcarbonaten, die Kreide sedimentären Ursprungs sowie kristalline Calciumcarbonate mit Saccharoidstruktur vom Typus des Marmors umfassen.The main patent concerns the treatment of naturally occurring Calcium carbonates, chalk of sedimentary origin and crystalline calcium carbonates with a saccharoid structure of the marble type.

Es wurde nun gefunden, daß man die gleichen Vorteile erzielen kann, wenn man unter den im Hauptpatent beschriebenen Bedingungen Doppelcarbonate des Calciums und Magnesiums, die in der Natur unter dem Namen Dolomit bekannt sind, behandelt. Der Mengenanteil an Calciumcarbonat im Verhältnis zu Magnesiumcarbonat in dem Dolomit ist gleichgültig.It has now been found that the same advantages can be achieved if under the conditions described in the main patent double carbonates des Calcium and magnesium, known in nature as dolomite, treated. The proportion of calcium carbonate in relation to magnesium carbonate in the dolomite is indifferent.

Auch kann man gleiche Ergebnisse erzielen, wenn man von reinem Magnesiumcarbonat ausgeht.You can also achieve the same results if you use pure magnesium carbonate goes out.

Ganz allgemein ist die in dem Hauptpatent beschriebene Behandlung als auf alle Carbonate mineralischer Art, wie z. B. Bariumcarbonat, Strontiumcarbonat, Zinkcarbonat usw., anwendbar erkannt worden. Es ist tatsächlich festgestellt worden, daß es möglich ist, die Kohlensäure dank einer Behandlung der Oberfläche der Carbonate mit höheren Fettsäuren unter den in dem Hauptpatent beschriebenen Bedingungen durch diese Säuren zu verdrängen.The treatment described in the main patent is quite general than on all carbonates of a mineral nature, such as. B. barium carbonate, strontium carbonate, Zinc carbonate, etc., has been recognized as being applicable. It has actually been established that it is possible to carbonate thanks to a treatment of the surface of the carbonates with higher fatty acids under the conditions described in the main patent to displace these acids.

Claims (1)

Patentanspruch: Anwendung des Verfahrens zur Behandlung von natürlichem Calciumcarbonat nach Patent 958 830 auf mineralische Carbonate, insbesondere Dolomit und Magnesiumcarbonate.Claim: Application of the process to the treatment of natural Calcium carbonate according to patent 958 830 on mineral carbonates, especially dolomite and magnesium carbonates.
DEO9089A 1961-11-27 1962-11-24 Process for the treatment of mineral carbonates with surface-active substances Pending DE1173445B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1173445X 1961-11-27

Publications (1)

Publication Number Publication Date
DE1173445B true DE1173445B (en) 1964-07-09

Family

ID=9658278

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO9089A Pending DE1173445B (en) 1961-11-27 1962-11-24 Process for the treatment of mineral carbonates with surface-active substances

Country Status (1)

Country Link
DE (1) DE1173445B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648410A1 (en) * 1976-10-26 1978-04-27 Lucas Industries Ltd Glass fibre reinforced polyester lamp reflector - conttg. lubricant bonded to filler preventing fogging at operating temp.
EP0005904A1 (en) * 1978-04-28 1979-12-12 The Georgia Marble Company Process for producing surface treated particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648410A1 (en) * 1976-10-26 1978-04-27 Lucas Industries Ltd Glass fibre reinforced polyester lamp reflector - conttg. lubricant bonded to filler preventing fogging at operating temp.
EP0005904A1 (en) * 1978-04-28 1979-12-12 The Georgia Marble Company Process for producing surface treated particles

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