CN1007238B - Preparation of barium titanate with ilmenite for use electronic elements - Google Patents
Preparation of barium titanate with ilmenite for use electronic elementsInfo
- Publication number
- CN1007238B CN1007238B CN 86106204 CN86106204A CN1007238B CN 1007238 B CN1007238 B CN 1007238B CN 86106204 CN86106204 CN 86106204 CN 86106204 A CN86106204 A CN 86106204A CN 1007238 B CN1007238 B CN 1007238B
- Authority
- CN
- China
- Prior art keywords
- ilmenite
- batio
- hydrochloric acid
- precipitation
- metatitanic acid
- 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
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention belongs to a method for producing titanium salts, particularly to a method for preparing highly purified BaTiO3 by directly using Pan ilmenite. The method comprises the following steps: firstly, decomposing Pan ilmenite with hydrochloric acid; afterwards, preparing the BaTiO3 with a simple chemical treatment method. The method provided by the present invention is a pioneer in the world and has the advantages of simple production technique and low production cost. In addition, because the method uses a low temperature calcination technology, electric energy can be saved and production apparatus is simplified.
Description
The invention belongs to the production method of titanium salt.
About directly making the method for barium titanate from climbing ilmenite, yet there are no report at home and abroad, and with BaTiO
3For the various porcelain powder of base but is the base mateiral of development electronic industry.The present invention be utilize reserves abundant climb ilmenite, through the simple chemical treatment way, directly make high-purity barium titanate, for the usefulness of the porcelain powder material of preparation used in electronic industry.
The objective of the invention is to seek that a kind of cost is low, technology is simply produced BaTiO
3Method, and the BaTiO that obtains
3, must be highly purified.
In order to make highly purified barium titanate, can decompose with concentrated hydrochloric acid earlier and climb ilmenite (or Guang Xikuang), use tributyl phosphate extracting and separating iron then, promptly getting does not have Fe titanium liquid, and the latter can obtain the metatitanic acid of iron-free after hydrolysis.Use BaCl
2, (NH
4)
2CO
3The metatitanic acid that processing makes obtains the co-precipitation of metatitanic acid and barium carbonate, calcines this precipitation and just can obtain the thinner BaTiO of crystal grain
3
Use method of the present invention to prepare barium titanate, can obtain the product of high purity (spectroscopically pure), can satisfy the specification of quality of the porcelain powder material of producing used in electronic industry fully; Use method of the present invention to produce barium titanate, climb ilmenite and be raw material, can simplify preparation technology, reduce production costs, and because calcining temperature low (being about 900 ℃) can be saved electronics and simplification production unit owing to directly uses.
Embodiment
1. get 200 the gram climb the there-necked flask that ilmenite is put into 2000ml, adding the dense HCl(concentration of 800ml again is 35%), 1ml phosphoric acid, acidolysis is 1 hour under 100～104 ℃ temperature, acidolysis rate can reach more than 95%.
2. the feed liquid after the acidolysis feeds chlorine after cooling, filtering, and makes Fe wherein
2+All be oxidized to Fe
3+(this moment, feed liquid became reddish-brown) goes out Fe with the tributyl phosphate extracting and separating then, and its extraction is in a ratio of 1: 1, can obtain pure titanium liquid after three extractions.
3. above-mentioned pure titanium liquid is put into four-hole boiling flask and be hydrolyzed,, promptly obtain metatitanic acid 100 °～104 ℃ following hydrolysis 2 hours.
4. take by weighing above-mentioned metatitanic acid 150 grams and put into the 1000ml beaker, add water 500ml making beating, add 215 gram BaCl again
22H
2This BaCl of O(
22H
2O has used the 800ml water dissolution), stir a moment once more, drip (NH behind these slurries of low-grade fever
4)
2CO
3Solution promptly obtains the co-precipitation of metatitanic acid and barium carbonate to being alkalescence.
5. with after the above-mentioned precipitation oven dry, put into muffle furnace, calcined 2 hours down, promptly obtain BaTiO at 900 ℃
3Product proves that by analysis its purity can reach the spectroscopically pure (see figure 1), and the crystalline structure of product is cubic crystalline form, and Ba: Ti=0.99: 1(sees Fig. 1).
The drawing explanation: Fig. 1 is BaTiO
3X-ray diffractogram, it is the BaTiO of U.S. TAM company that " mark " word person is wherein arranged
3Sample, unmarked person is BaTiO of the present invention
3Sample.
Test condition is:
Used instrument is: D/max-III AX ray diffraction instrument
Cuka 40KV;40mA
Ds/ss 1
0;Rs 0.15mm
Graphite monochromator Sc is 850V; PHA(120,140)
Claims (3)
1, a kind of manufacturing BaTiO
3Method, it is characterized in that it is to use hydrochloric acid to decompose to climb the feed liquid of Tai Tie Kuang And after hydrochloric acid decomposes can feed chlorine, make Fe wherein
2+Be oxidized to Fe
3+, after with tributyl phosphate Fe being isolated then, hydrolysis is 2 hours under 100 °～104 ℃ temperature, promptly obtains the metatitanic acid of iron-free, uses BaCl again
2, (NH
4)
2CO
3Handle this metatitanic acid, then obtain the co-precipitation of metatitanic acid and barium carbonate, calcine this precipitation and can obtain BaTiO
3
2, according to the said manufacturing of claim 1 BaTiO
3Method, it is characterized in that decomposing when climbing ilmenite with hydrochloric acid, the concentration of used hydrochloric acid is 35%, acidolysis temperature is 100～104 ℃, the acidolysis time is 1 hour.
3, according to the said manufacturing of claim 1 BaTiO
3Method, when it is characterized in that calcining the co-precipitation of metatitanic acid and barium carbonate, its calcining temperature is 900 ℃, calcination time is 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106204 CN1007238B (en) | 1986-09-10 | 1986-09-10 | Preparation of barium titanate with ilmenite for use electronic elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106204 CN1007238B (en) | 1986-09-10 | 1986-09-10 | Preparation of barium titanate with ilmenite for use electronic elements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86106204A CN86106204A (en) | 1988-03-23 |
| CN1007238B true CN1007238B (en) | 1990-03-21 |
Family
ID=4803112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86106204 Expired CN1007238B (en) | 1986-09-10 | 1986-09-10 | Preparation of barium titanate with ilmenite for use electronic elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007238B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036190C (en) * | 1994-04-28 | 1997-10-22 | 西北大学 | High pureness super fined titanate and its sosoloid synthetic process |
| CN107032393A (en) * | 2017-06-05 | 2017-08-11 | 山东东佳集团股份有限公司 | The method that slurries fixation prepares barium metatitanate |
-
1986
- 1986-09-10 CN CN 86106204 patent/CN1007238B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86106204A (en) | 1988-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |