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1. WO2010078820 - TITANIA COMPOSITE AND PREPARING METHOD THEREOF

Publication Number WO/2010/078820
Publication Date 15.07.2010
International Application No. PCT/CN2009/076255
International Filing Date 30.12.2009
IPC
C01G 23/053 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
23Compounds of titanium
04Oxides; Hydroxides
047Titanium dioxide
053Producing by wet processes, e.g. hydrolysing titanium salts
C01F 11/46 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS
11Compounds of calcium, strontium, or barium
46Sulfates
C09C 1/02 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
1Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
02Compounds of alkaline earth metals or magnesium
C09C 1/36 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
1Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
36Compounds of titanium
C09C 3/06 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
3Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
06Treatment with inorganic compounds
CPC
C01F 11/462
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
11Compounds of calcium, strontium, or barium
46Sulfates
462Sulfates of Sr or Ba
C01G 23/047
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
23Compounds of titanium
04Oxides; Hydroxides
047Titanium dioxide
C01P 2002/72
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
70defined by measured X-ray, neutron or electron diffraction data
72by d-values or two theta-values, e.g. as X-ray diagram
C01P 2004/03
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
01depicted by an image
03obtained by SEM
C01P 2004/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
30extending in three dimensions
32Spheres
C01P 2004/62
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
62Submicrometer sized, i.e. from 0.1-1 micrometer
Applicants
  • 重庆科昌科技有限公司 CHONGQING KECHANG TECHNOLOGY CO., LTD. [CN]/[CN] (AllExceptUS)
  • 华东 HUA, Dong [CN]/[CN] (UsOnly)
  • 刘正涛 LIU, Zhengtao [CN]/[CN] (UsOnly)
Inventors
  • 华东 HUA, Dong
  • 刘正涛 LIU, Zhengtao
Agents
  • 北京市浩天知识产权代理事务所 HYLANDS LAW FIRM
Priority Data
200910103012.606.01.2009CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) TITANIA COMPOSITE AND PREPARING METHOD THEREOF
(FR) COMPOSITE DE DIOXYDE DE TITANE ET PROCÉDÉ POUR LE PRÉPARER
(ZH) 一种复合二氧化钛及其制备方法
Abstract
(EN) A titania composite and a preparing method thereof are provided. The titania composite comprises an inner core and a coating film layer, wherein the inner core is a barium sulfate crystal and/or a strontium sulfate crystal, with a subsphaeroidal shape, having a particle size of less than 1 µm and whiteness of more than 98%, and the coating film layer is nano rutile titania. The preparing method thereof comprises the following steps: (a) preparing barium sulfate or strontium sulfate; (b) coating treatment; (c) subjecting the titania composite to a high-temperature heat treatment; and (d) subjecting the titania composite to a post treatment. The subsphaeroidal titania composite is obtained by chemically synthesizing a subsphaeroidal submicron barium sulfate or strontium sulfate and then hydrolyzing and coating thereon to form a coating film layer of titania and make it grow evenly. The particle size of the titania composite is small, and the particle size distribution range of the titania composite is controllable.
(FR) L'invention concerne un composite de dioxyde de titane et un procédé pour le préparer. Le composite de dioxyde de titane comprend un cœur interne et une couche de film de revêtement, le cœur interne étant constitué d'un cristal de sulfate de baryum et/ou d'un cristal de sulfate de strontium, avec une forme sub-sphéroïde, dont la taille de particule est inférieure à 1 µm et la blancheur supérieure à 98 %, et le film de revêtement étant constitué de dioxyde de titane sous forme nano rutile. Le procédé de préparation du composite comprend les étapes suivantes : (a) préparation de sulfate de baryum ou de sulfate de strontium; (b) traitement de revêtement; (c) soumission du composite de dioxyde de titane à un traitement thermique à haute température; et (d) soumission du composite de dioxyde de titane à un post-traitement. Le composite de dioxyde de titane sub-sphéroïde est obtenu par synthèse chimique de sulfate de baryum ou de sulfate de strontium sub-sphéroïde de taille inférieure au micron, puis hydrolyse et dépôt pour former une couche de film de revêtement de dioxyde de titane et en le faisant croître uniformément. La taille de particules du composite de dioxyde de titane est petite, et l'intervalle de distribution de tailles de particules du composite de dioxyde de titane est contrôlable.
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