GB1349089A - Production of surface-coated oxide particles - Google Patents

Production of surface-coated oxide particles

Info

Publication number
GB1349089A
GB1349089A GB3290771A GB1349089DA GB1349089A GB 1349089 A GB1349089 A GB 1349089A GB 3290771 A GB3290771 A GB 3290771A GB 1349089D A GB1349089D A GB 1349089DA GB 1349089 A GB1349089 A GB 1349089A
Authority
GB
United Kingdom
Prior art keywords
precipitated
pressure
tio
oxide particles
pigment
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
GB3290771A
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.)
Evonik LIL Ltd
Original Assignee
Laporte Industries Ltd
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 Laporte Industries Ltd filed Critical Laporte Industries Ltd
Publication of GB1349089A publication Critical patent/GB1349089A/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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C09C3/063—Coating
    • 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
    • C09C1/36—Compounds of titanium
    • C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1349089 Coated oxide particles LAPORTE INDUSTRIES Ltd 13 July 1972 [13 July 1971] 32907/71 Headings C1N and C1A Pigmentary oxide particles are surface coated with oxycompounds by precipitation under hydrothermal pressure conditions at a temperature of at least 140‹ C., preferably not above 275‹ C. The oxycompound may contain Be, Mg, Ca, Ba, B, Al, Si, Sn, Pb, Sb, Bi, Ti, Zr, Hf, Nb, Ta, Mn, Zn, or Ce. Hydrous oxides may be precipitated by hydrolysis of TiCl 4 , SnCl 4 , ZnCl 2 , Ca acetate, Al 2 (SO 4 ) 3 or titanyl Al sulphate. Oxysalts may be precipitated from two or more compounds, e.g. a borate; Zn silicate from ZnSO 4 and Na silicate; Ti phosphate from TiCl 4 and Na 3 PO 4 ; or Sn and Al may be precipitated together from SnCl 4 and Al 2 (SO 4 ) 3 . Several layers may be deposited, e.g. TiO 2 may first be precipitated from titanyl Al sulphate with NaOH and the Al may then be precipitated under pressure; alternatively, a first coating may be precipitated under pressure and a second coating precipitated by adjusting the pH. Some surface reaction may occur, e.g. to produce Ca titanate on TiO 2 . The process may be carried out in a stirred, rocking, or rotating autoclave. Pressure may be augmented by introducing air or N 2 . Further reagents may be introduced through pressure locks. After precipitation, the pigment may be subjected to a hydrothermal pressure treatment at a temperature of at least 50‹ C., as described in Specification 1,336,292. The pressure in the autoclave may be used to convey the pigment to the next treatment stage. The exemplified pigment is TiO 2 ; others mentioned are Cr and Fe oxides.
GB3290771A 1971-07-13 1972-07-13 Production of surface-coated oxide particles Expired GB1349089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3290771 1971-07-13

Publications (1)

Publication Number Publication Date
GB1349089A true GB1349089A (en) 1974-03-27

Family

ID=10345792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3290771A Expired GB1349089A (en) 1971-07-13 1972-07-13 Production of surface-coated oxide particles

Country Status (7)

Country Link
AU (1) AU460033B2 (en)
BE (1) BE786202A (en)
CA (1) CA972906A (en)
DE (1) DE2234519A1 (en)
FR (1) FR2145595B1 (en)
GB (1) GB1349089A (en)
NL (1) NL7209712A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885034A (en) * 1986-08-23 1989-12-05 Metallgesellschaft Aktiengesellschaft Method of making a composite TiO2 pigment
US5215948A (en) * 1990-07-30 1993-06-01 Tioxide Group Services Limited Ceramic green bodies
US5338354A (en) * 1992-06-24 1994-08-16 Tioxide Group Services Limited Composite pigmentary material
WO2004018568A1 (en) * 2002-08-08 2004-03-04 Kronos International, Inc. Method for surface treatment of a titanium dioxide pigment
CN110903681A (en) * 2019-12-18 2020-03-24 龙蟒佰利联集团股份有限公司 Preparation method of super-weather-resistant titanium dioxide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151343A1 (en) * 1981-12-24 1983-07-07 Merck Patent Gmbh, 6100 Darmstadt PEARL SHINE PIGMENTS WITH IMPROVED LIGHT RESISTANCE, THEIR PRODUCTION AND THEIR USE
DE3535818A1 (en) * 1985-10-08 1987-04-09 Merck Patent Gmbh GLOSSY AND ENAMELABLE PEARL PIGMENTS

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885034A (en) * 1986-08-23 1989-12-05 Metallgesellschaft Aktiengesellschaft Method of making a composite TiO2 pigment
US5215948A (en) * 1990-07-30 1993-06-01 Tioxide Group Services Limited Ceramic green bodies
US5338354A (en) * 1992-06-24 1994-08-16 Tioxide Group Services Limited Composite pigmentary material
AU661582B2 (en) * 1992-06-24 1995-07-27 Tioxide Group Services Limited Composite pigmentary material
WO2004018568A1 (en) * 2002-08-08 2004-03-04 Kronos International, Inc. Method for surface treatment of a titanium dioxide pigment
CN1296439C (en) * 2002-08-08 2007-01-24 克罗内斯国际公司 Method for surface treatment of a titanium dioxide pigment
CN110903681A (en) * 2019-12-18 2020-03-24 龙蟒佰利联集团股份有限公司 Preparation method of super-weather-resistant titanium dioxide

Also Published As

Publication number Publication date
NL7209712A (en) 1973-01-16
FR2145595B1 (en) 1977-04-01
AU4421472A (en) 1974-01-10
BE786202A (en) 1972-11-03
CA972906A (en) 1975-08-19
DE2234519A1 (en) 1973-01-25
AU460033B2 (en) 1975-04-10
FR2145595A1 (en) 1973-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee