GB1103577A - Titanium dioxide coating process - Google Patents
Titanium dioxide coating processInfo
- Publication number
- GB1103577A GB1103577A GB3332265A GB3332265A GB1103577A GB 1103577 A GB1103577 A GB 1103577A GB 3332265 A GB3332265 A GB 3332265A GB 3332265 A GB3332265 A GB 3332265A GB 1103577 A GB1103577 A GB 1103577A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- particles
- titanium
- tio2
- oxide
- 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
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 13
- 238000000576 coating method Methods 0.000 title abstract 7
- 239000004408 titanium dioxide Substances 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 5
- 239000002245 particle Substances 0.000 abstract 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 2
- 239000010936 titanium Substances 0.000 abstract 2
- 229910052719 titanium Inorganic materials 0.000 abstract 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 150000001242 acetic acid derivatives Chemical class 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 239000011260 aqueous acid Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 abstract 1
- 150000003841 chloride salts Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
-
- 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
- C09C1/3607—Titanium dioxide
- C09C1/3653—Treatment with inorganic compounds
- C09C1/3661—Coating
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
A process for coating TiO2 pigments with a hydrous oxide of titanium comprises leaching TiO2 particles with an aqueous acid, forming an aqueous dispersion of the TiO2 particles, adding a titanium tetrahalide to the dispersion, heating the mixture to between 80 DEG C. and the boiling point of the liquid and adjusting the pH to a value of 6 to 8, for example by the addition of an alkali metal hydroxide or carbonate or NH4OH. The TiO2 particles are preferably of the rutile modification and have a mean particle size of 0.15 m to 0.35 m . Leaching may be effected with dilute H2SO4 at a pH of not more than 3 at a temperature of 60-90 DEG C. The particles may have other coatings in addition to the titanium oxide coating for example, a coating of an oxide of aluminium, zirconium, cerium, and/or silicon and/or a phosphate coating, which are preferably applied after the titanium oxide coating and the adjustment of the pH. Water-soluble hydrolysable salts of the desired metals, such as sulphates, chlorides, nitrates or acetates may be added to the suspension and the pH raised again to a value of 5 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3332265A GB1103577A (en) | 1965-08-04 | 1965-08-04 | Titanium dioxide coating process |
| FR1583161D FR1583161A (en) | 1965-08-04 | 1966-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3332265A GB1103577A (en) | 1965-08-04 | 1965-08-04 | Titanium dioxide coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1103577A true GB1103577A (en) | 1968-02-14 |
Family
ID=10351446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3332265A Expired GB1103577A (en) | 1965-08-04 | 1965-08-04 | Titanium dioxide coating process |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1583161A (en) |
| GB (1) | GB1103577A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0982379A2 (en) * | 1998-08-28 | 2000-03-01 | Sharp Kabushiki Kaisha | Particle surface-modifying method and particle surface-modifying device |
| WO2002068544A1 (en) * | 2001-02-23 | 2002-09-06 | Millennium Inorganic Chemicals, Inc. | Improved method for manufacturing high opacity, durable pigment |
| CN114163844A (en) * | 2021-12-19 | 2022-03-11 | 中信钛业股份有限公司 | Production method of titanium dioxide pigment with high achromatism and high weather resistance |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3666450D1 (en) * | 1986-02-27 | 1989-11-23 | Kronos Titan Gmbh | Process for improving dioxide pigments by after-treatment |
| AU1128595A (en) * | 1993-11-05 | 1995-05-23 | E.I. Du Pont De Nemours And Company | Lightfast titanium oxide pigment |
-
1965
- 1965-08-04 GB GB3332265A patent/GB1103577A/en not_active Expired
-
1966
- 1966-08-04 FR FR1583161D patent/FR1583161A/fr not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0982379A2 (en) * | 1998-08-28 | 2000-03-01 | Sharp Kabushiki Kaisha | Particle surface-modifying method and particle surface-modifying device |
| EP0982379A3 (en) * | 1998-08-28 | 2001-12-12 | Sharp Kabushiki Kaisha | Particle surface-modifying method and particle surface-modifying device |
| US6491976B2 (en) | 1998-08-28 | 2002-12-10 | Sharp Kabushiki Kaisha | Method for adding hydrophilic groups to the surface of particles |
| WO2002068544A1 (en) * | 2001-02-23 | 2002-09-06 | Millennium Inorganic Chemicals, Inc. | Improved method for manufacturing high opacity, durable pigment |
| US6528568B2 (en) | 2001-02-23 | 2003-03-04 | Millennium Inorganic Chemicals, Inc. | Method for manufacturing high opacity, durable pigment |
| CN114163844A (en) * | 2021-12-19 | 2022-03-11 | 中信钛业股份有限公司 | Production method of titanium dioxide pigment with high achromatism and high weather resistance |
| CN114163844B (en) * | 2021-12-19 | 2022-11-15 | 中信钛业股份有限公司 | Production method of titanium dioxide pigment with high achromatism and high weather resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1583161A (en) | 1969-10-24 |
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