EP0029699B1 - Chlorination of titaniferous ore using porous carbon - Google Patents

Chlorination of titaniferous ore using porous carbon Download PDF

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Publication number
EP0029699B1
EP0029699B1 EP80304130A EP80304130A EP0029699B1 EP 0029699 B1 EP0029699 B1 EP 0029699B1 EP 80304130 A EP80304130 A EP 80304130A EP 80304130 A EP80304130 A EP 80304130A EP 0029699 B1 EP0029699 B1 EP 0029699B1
Authority
EP
European Patent Office
Prior art keywords
chlorination
titaniferous material
porous carbon
temperature
titaniferous
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
EP80304130A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0029699A1 (en
Inventor
James P. Bonsack
Fred Schneider, Jr.
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.)
Ineos Pigments USA Inc
Original Assignee
SCM Corp
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
Priority claimed from US06/165,252 external-priority patent/US4310495A/en
Application filed by SCM Corp filed Critical SCM Corp
Publication of EP0029699A1 publication Critical patent/EP0029699A1/en
Application granted granted Critical
Publication of EP0029699B1 publication Critical patent/EP0029699B1/en
Expired legal-status Critical Current

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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
    • C22B34/1218—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 dry processes
    • C22B34/1222—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 dry processes using a halogen containing agent

Definitions

  • Titaniferous materials are often subjected to chlorination as chlorination is an efficient and economical way to obtain a high purity source of titanium for making titanium alloys, titanium compounds, and especially pigmentary titanium dioxide.
  • Several processes have been described in the art for the chlorination of titaniferous materials. Such processes generally react a titanium-containing raw material such as rutile ore or ilmenite ore, with a chlorine-providing material and a carbon reductant at an elevated temperature according to one or both of the following equations:
  • the present invention is a process for the chlorination of titaniferous materials.
  • a mixture of titaniferous material and porous carbon reductant having internal surface due to micropores of less than 2 nm (20 A) is reacted with a chlorine-providing material in a chlorination reaction zone at a temperature of at least 600°C.
  • the present process has been found effective and efficient for substantially chlorinating the titanium values of most titanium-bearing ores. Additionally, at temperatures greater than 800°C. vanadium impurities in the titanium-containing materials can be rendered readily separable from the titanium-containing products.
  • the present invention is a chlorination process.
  • the chlorine-providing material can be chlorine gas, HCI, an organo-chloride or mixture thereof.
  • the chlorine-providing material is used as the fluidizing gas in the process.
  • the gas contain a high percentage of chlorine such that a minimum volume of fluidizing gas can be used and maximum reaction rates obtained.
  • Chlorine gas (C1 2 ) is preferred; however, also organo-chlorides can be used. Highly reactive chlorine sources such as NOCI and selective chlorination agents such as FeCI 2 are not within the scope of the present invention.
  • granular porous carbon reductant and granular titaniferous material are blended together and charged into the fluid-bed reactor.
  • the reactor temperature is raised to a chlorination reaction temperature of at least 600°C. and chlorine-providing gas is introduced into the bottom of the reactor to fluidize the bed and an off-gas product stream is withdrawn from the top of the bed.
  • a further benefit of low-temperature fluid-bed operation of the present process is that no liquid metal chloride impurities are formed in the fluid bed itself. For example, at 600° to 670°C. the fluidized bed and the off-gas products would be below the melting points of normally troublesome calcium, magnesium, and iron chlorides. At conventional operating temperatures of greater than 800°C., liquid chlorides of calcium and magnesium tend to cause bed defluidization.
  • Australian rutile ore containing about 96% Ti0 2 and having a particle size such that substantially all of it would pass through a 40-mesh screen and be retained on a 140-mesh screen was chlorinated by blending with a porous carbon reductant and reacting with chlorine in a fluid-bed reactor.
  • the reactor consisted of a 3-inch diameter quartz tube with a porous quartz gas distributor plate near one end.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP80304130A 1979-11-19 1980-11-18 Chlorination of titaniferous ore using porous carbon Expired EP0029699B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9545779A 1979-11-19 1979-11-19
US95457 1979-11-19
US06/165,252 US4310495A (en) 1980-07-02 1980-07-02 Low-temperature fluid-bed chlorination of titaniferous ore
US165252 1980-07-02

Publications (2)

Publication Number Publication Date
EP0029699A1 EP0029699A1 (en) 1981-06-03
EP0029699B1 true EP0029699B1 (en) 1983-11-23

Family

ID=26790248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304130A Expired EP0029699B1 (en) 1979-11-19 1980-11-18 Chlorination of titaniferous ore using porous carbon

Country Status (4)

Country Link
EP (1) EP0029699B1 (enrdf_load_stackoverflow)
JP (1) JPS56501522A (enrdf_load_stackoverflow)
DE (1) DE3065722D1 (enrdf_load_stackoverflow)
WO (1) WO1981001404A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1231535A (en) * 1982-09-02 1988-01-19 Michael Robinson Process for the chlorination of oxidic materials
US4442076A (en) * 1982-11-17 1984-04-10 Scm Corporation Entrained downflow chlorination of fine titaniferous material
DE4325690A1 (de) * 1993-07-30 1995-02-02 Siemens Ag Verfahren und Einrichtung zur Rückgewinnung von Bestandteilen eines Katalysators
CN109153861A (zh) * 2016-05-19 2019-01-04 艾绿卡资源有限公司 含钛材料细粒的团聚

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1179394A (en) * 1914-06-24 1916-04-18 Titanium Alloy Mfg Co METHOD AND MEANS FOR PRODUCING TITANIUM TETRACHLORID, (TiCl4.)
US2184884A (en) * 1938-04-30 1939-12-26 Pittsburgh Plate Glass Co Treatment of titanium ores
US2761760A (en) * 1955-06-02 1956-09-04 Nat Distillers Prod Corp Process for the manufacture of titanium tetrachloride
US3418074A (en) * 1965-11-17 1968-12-24 Du Pont Process for chlorinating titaniferous ores
US3497326A (en) * 1967-01-18 1970-02-24 Nicolas Soloducha Apparatus for producing titanium tetrachloride and other halides
FR2088510B1 (enrdf_load_stackoverflow) * 1970-05-12 1973-11-23 Sir Soc Italiana Resine Spa
US4017304A (en) * 1972-10-20 1977-04-12 E. I. Du Pont De Nemours And Company Process for selectively chlorinating the titanium content of titaniferous materials
US3977863A (en) * 1973-09-18 1976-08-31 E. I. Du Pont De Nemours And Company Process for selectively chlorinating the titanium content of titaniferous materials
IT1026405B (it) * 1975-01-21 1978-09-20 Centro Speriment Metallurg Materiale carbonioso con elevate caratteristiche di sviluppo e di attivita superficiale e processo per ottenerlo
CA1106141A (en) * 1976-04-12 1981-08-04 Michel Gueguin Process for producing titanium tetrachloride from titanium oxide-bearing material, and product obtained by said process
CA1096177A (en) * 1977-07-21 1981-02-24 James P. Bonsack Chlorination of ilmenite
US4244935A (en) * 1978-04-20 1981-01-13 Aluminum Company Of America Method of forming metal chlorides

Also Published As

Publication number Publication date
JPS56501522A (enrdf_load_stackoverflow) 1981-10-22
DE3065722D1 (en) 1983-12-29
EP0029699A1 (en) 1981-06-03
WO1981001404A1 (en) 1981-05-28

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