NO752196L - - Google Patents
Info
- Publication number
- NO752196L NO752196L NO752196A NO752196A NO752196L NO 752196 L NO752196 L NO 752196L NO 752196 A NO752196 A NO 752196A NO 752196 A NO752196 A NO 752196A NO 752196 L NO752196 L NO 752196L
- Authority
- NO
- Norway
- Prior art keywords
- titanium
- acid
- fluoride
- digester
- iron
- Prior art date
Links
- 239000002253 acid Substances 0.000 claims description 83
- 238000000034 method Methods 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 70
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 65
- 229910052719 titanium Inorganic materials 0.000 claims description 40
- 239000010936 titanium Substances 0.000 claims description 40
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 39
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 33
- 239000004408 titanium dioxide Substances 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 28
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 22
- 238000001556 precipitation Methods 0.000 claims description 20
- 239000002244 precipitate Substances 0.000 claims description 19
- 238000009835 boiling Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- -1 fluoride ions Chemical class 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 12
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- USEGOPGXFRQEMV-UHFFFAOYSA-N fluoro hypofluorite titanium Chemical compound [Ti].FOF USEGOPGXFRQEMV-UHFFFAOYSA-N 0.000 claims description 7
- 150000003609 titanium compounds Chemical class 0.000 claims description 5
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 150000002506 iron compounds Chemical class 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 61
- 229910052742 iron Inorganic materials 0.000 description 29
- 241000196324 Embryophyta Species 0.000 description 25
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 18
- 230000029087 digestion Effects 0.000 description 17
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- 235000011167 hydrochloric acid Nutrition 0.000 description 13
- 235000013980 iron oxide Nutrition 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 8
- 229910052731 fluorine Inorganic materials 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 7
- 238000004090 dissolution Methods 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical class Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005352 clarification Methods 0.000 description 6
- 238000010924 continuous production Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000010923 batch production Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009918 complex formation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical group [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 3
- 238000007885 magnetic separation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 150000003608 titanium Chemical class 0.000 description 3
- 241001253169 Asystasia gangetica Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229960002050 hydrofluoric acid Drugs 0.000 description 2
- FZGIHSNZYGFUGM-UHFFFAOYSA-L iron(ii) fluoride Chemical compound [F-].[F-].[Fe+2] FZGIHSNZYGFUGM-UHFFFAOYSA-L 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 150000003891 oxalate salts Chemical class 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910017356 Fe2C Inorganic materials 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910010415 TiO(OH) Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- JCDAAXRCMMPNBO-UHFFFAOYSA-N iron(3+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Ti+4].[Fe+3].[Fe+3] JCDAAXRCMMPNBO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
- C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
- C22B34/1245—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a halogen ion as active agent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPB792074 | 1974-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO752196L true NO752196L (US06811534-20041102-M00003.png) | 1975-12-23 |
Family
ID=3765939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO752196A NO752196L (US06811534-20041102-M00003.png) | 1974-06-21 | 1975-06-20 |
Country Status (16)
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ181123A (en) * | 1975-06-30 | 1979-12-11 | Univ Melbourne | Treatment of mineralcontaining materials with an acid in the presence of fluoride ion |
| US4359449A (en) * | 1980-12-15 | 1982-11-16 | Occidental Research Corporation | Process for making titanium oxide from titanium ore |
| US4390365A (en) * | 1980-12-15 | 1983-06-28 | Occidental Research Corporation | Process for making titanium metal from titanium ore |
| US4470847A (en) * | 1982-11-08 | 1984-09-11 | Occidental Research Corporation | Process for making titanium, zirconium and hafnium-based metal particles for powder metallurgy |
| WO1984004759A1 (en) * | 1983-05-25 | 1984-12-06 | Oabrand Pty Ltd | Extraction of metals from ores |
| WO1985000160A1 (en) * | 1983-06-27 | 1985-01-17 | Occidental Research Corporation | Process for making titanium metal from titanium ore |
| WO1986000610A1 (en) * | 1984-07-03 | 1986-01-30 | Occidental Research Corporation | Group ivb transition metal based metal and processes for the production thereof |
| BR8703766A (pt) * | 1987-07-20 | 1989-01-31 | Mamore Mineracao E Metalurgica | Processo para a abertura de minerios |
| GB8812759D0 (en) * | 1988-05-28 | 1988-06-29 | Tioxide Group Plc | Fine particulate material |
| US5597515A (en) * | 1995-09-27 | 1997-01-28 | Kerr-Mcgee Corporation | Conductive, powdered fluorine-doped titanium dioxide and method of preparation |
| WO2002022895A1 (fr) * | 2000-09-12 | 2002-03-21 | Mitsui Mining & Smelting Co., Ltd. | Procede de production de metal ou d'un compose de metal comprenant un processus de traitement au fluor et matiere premiere utilisee dans celui-ci |
| BR0304443B1 (pt) * | 2003-10-28 | 2012-08-21 | processo para obtenção de concentrados de titánio com elevado teor de tio2 e baixo teor de radionuclìdeos a partir de concentrados mecánicos de anatásio. | |
| WO2011094858A1 (en) | 2010-02-04 | 2011-08-11 | Neomet Technologies Inc. | Process for the recovery of titanium dioxide and value metals by reducing the concentration of hydrochloric acid in leach solution and system for same |
| CA3012343C (en) | 2010-02-18 | 2019-12-31 | Brav Metal Technologies Inc. | Process for the recovery of metals and hydrochloric acid |
| CA2789095C (en) | 2010-02-18 | 2018-03-06 | Neomet Technologies Inc. | Process for the recovery of gold from an ore in chloride medium with a nitrogen species |
| WO2019213723A1 (en) * | 2018-05-11 | 2019-11-14 | Mineração Floresta S/A | Process for production of titanium dioxide pigment by means of hydrochloric acid digestion of titanium contaning raw materials in the presence of a fluorine based substance |
| JP2023164773A (ja) * | 2020-09-18 | 2023-11-14 | 石原産業株式会社 | フッ化アルカリ金属塩の回収方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2113946A (en) * | 1936-11-06 | 1938-04-12 | Nat Lead Co | Preparation of pure titanium dioxide |
| US2333663A (en) * | 1942-05-02 | 1943-11-09 | Sherwin Williams Co | Manufacture of titanium oxide pigments |
| US2622964A (en) * | 1949-01-14 | 1952-12-23 | Nat Lead Co | Method for hydrolyzing titaniferous solutions |
| US2576483A (en) * | 1949-01-14 | 1951-11-27 | Nat Lead Co | Method for solubilizing titaniferous materials |
| US2812237A (en) * | 1952-01-31 | 1957-11-05 | Horizons Titanium Corp | Preparation of alkali metal fluotitanates |
| US2694617A (en) * | 1952-06-10 | 1954-11-16 | Horizons Titanium Corp | Production of titanium fluorides |
| US3167516A (en) * | 1962-12-13 | 1965-01-26 | Paul R Brayton | Process for the production of heatresistant pigments and paints containing said pigments |
| JPS4918330B1 (US06811534-20041102-M00003.png) * | 1969-02-08 | 1974-05-09 |
-
1974
- 1974-06-21 AU AU82233/75A patent/AU8223375A/en not_active Expired
-
1975
- 1975-01-01 AR AR259280A patent/AR206033A1/es active
- 1975-06-13 IN IN1170/CAL/1975A patent/IN144884B/en unknown
- 1975-06-13 ZA ZA00753802A patent/ZA753802B/xx unknown
- 1975-06-16 GB GB2556775A patent/GB1469383A/en not_active Expired
- 1975-06-17 NL NL7507208A patent/NL7507208A/xx unknown
- 1975-06-18 SE SE7507019A patent/SE7507019L/xx unknown
- 1975-06-19 FI FI751846A patent/FI751846A/fi not_active Application Discontinuation
- 1975-06-19 DE DE19752527397 patent/DE2527397A1/de active Pending
- 1975-06-20 JP JP50075429A patent/JPS5133713A/ja active Pending
- 1975-06-20 IT IT68603/75A patent/IT1036349B/it active
- 1975-06-20 BE BE157521A patent/BE830459A/xx unknown
- 1975-06-20 NO NO752196A patent/NO752196L/no unknown
- 1975-06-20 BR BR5028/75D patent/BR7503913A/pt unknown
- 1975-06-23 FR FR7519520A patent/FR2275558A1/fr active Granted
- 1975-06-23 US US05/589,129 patent/US4058393A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL7507208A (nl) | 1975-12-23 |
| FR2275558B1 (US06811534-20041102-M00003.png) | 1978-12-08 |
| AR206033A1 (es) | 1976-06-23 |
| GB1469383A (en) | 1977-04-06 |
| JPS5133713A (US06811534-20041102-M00003.png) | 1976-03-23 |
| BR7503913A (pt) | 1976-07-06 |
| IN144884B (US06811534-20041102-M00003.png) | 1978-07-22 |
| DE2527397A1 (de) | 1976-01-08 |
| US4058393A (en) | 1977-11-15 |
| AU8223375A (en) | 1976-12-23 |
| SE7507019L (sv) | 1975-12-22 |
| FR2275558A1 (fr) | 1976-01-16 |
| BE830459A (fr) | 1975-10-16 |
| ZA753802B (en) | 1976-05-26 |
| IT1036349B (it) | 1979-10-30 |
| FI751846A (US06811534-20041102-M00003.png) | 1975-12-22 |
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