CN100577559C - Method for producing barium selenate - Google Patents
Method for producing barium selenate Download PDFInfo
- Publication number
- CN100577559C CN100577559C CN200710031192A CN200710031192A CN100577559C CN 100577559 C CN100577559 C CN 100577559C CN 200710031192 A CN200710031192 A CN 200710031192A CN 200710031192 A CN200710031192 A CN 200710031192A CN 100577559 C CN100577559 C CN 100577559C
- Authority
- CN
- China
- Prior art keywords
- precipitation
- acid
- tin anhydride
- add
- water
- 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.)
- Active
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a method for producing barium selenate. The invention comprises the following steps: (1) weighing 200-250 g of selenium dioxide, adding into 1.5-2L of water, and stirring to completely dissolve the selenium dioxide in the water; (2) adding 150-180 g of sodium hydroxide into the selenium dioxide aqueous solution obtained in the step (1), and uniformly stirring; then adding 400-600 g barium chloride and 100-200 g oxidant, stirring to make them completely react and produce precipitate; (3) carrying out acid washing on the precipitate obtained in the step (2); the using amount of the acid is 15-25 g; (4) and carrying out filter pressing, drying and crushing on the precipitate after the acid washing to obtain a finished product. The production process has the advantages of simple equipment, high capacity of single set of equipment and low production cost; high utilization rate of selenium as raw material.
Description
Technical field
The present invention relates to a kind of production method of barium selenate.
Technical background
Barium selenate is a kind of white crystalline powder, orthorhombic structure, and density 4.75g/cm3, thermal degradation is dissolved in hydrochloric acid, is insoluble to nitric acid, is slightly soluble in water.Being mainly used in glass work, being the special glass additive, be used to improve glass properties, is a kind of important chemical material.
The production technique of main barium selenate has selenic acid barium carbonate method and nitrate of baryta sodium selenate method both at home and abroad at present.
Above-mentioned two kinds of production technique mainly exist production cost higher, the shortcoming that the utilization ratio of raw material selenium is low.
Summary of the invention
The objective of the invention is to overcome the defective that prior art exists, provide a kind of efficiently, the production method of barium selenate cheaply.
For achieving the above object, the present invention has taked following technical scheme:
The production method of barium selenate comprises following technological step:
(1) take by weighing 200～250g tin anhydride and add in the water of 1.5～2L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 150～180g sodium hydroxide, stirs; Add 400～600g bariumchloride and 100～200g oxygenant again, stir, make it to react completely, generate precipitation;
(3) precipitation that reaction in (2) step is obtained is carried out pickling;
Related washing acid is nitric acid, hydrochloric acid, sulfuric acid, formic acid, acetate etc.; The consumption of the acid that adds is 15～25g;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
In the technique scheme, related oxygenant is sodium perchlorate, sodium chlorate, potassium permanganate, hydrogen peroxide etc.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts the bariumchloride synthesis method to produce barium selenate; Production technique of the present invention has that equipment is simple, and single complete equipment production capacity is big, and production cost is low; The advantage of the utilization ratio height of raw material selenium (can reach more than 99%).
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Embodiment 1
The production method of barium selenate comprises following technological step:
(1) take by weighing the 200g tin anhydride and add in the water of 1.5L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 150g sodium hydroxide, stirs; Add 400g bariumchloride and 100g sodium perchlorate again, stir, make it to react completely, generate precipitation;
(3) hydrochloric acid of the precipitation adding 15g that reaction in (2) step is obtained carries out pickling;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
Embodiment 2
The production method of barium selenate comprises following technological step:
(1) take by weighing the 220g tin anhydride and add in the water of 1.8L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 160g sodium hydroxide, stirs; Add 500g bariumchloride and 150g hydrogen peroxide again, stir, make it to react completely, generate precipitation;
(3) hydrochloric acid of the precipitation adding 19g that reaction in (2) step is obtained carries out pickling;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
Embodiment 3
The production method of barium selenate comprises following technological step:
(1) take by weighing the 250g tin anhydride and add in the water of 2L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 180g sodium hydroxide, stirs; Add 600g bariumchloride and 200g potassium permanganate again, stir, make it to react completely, generate precipitation;
(3) nitric acid of the precipitation adding 25g that reaction in (2) step is obtained carries out pickling;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
Claims (4)
1. the production method of barium selenate is characterized in that: comprise following technological step:
(1) take by weighing 200～250g tin anhydride and add in the water of 1.5～2L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 150～180g sodium hydroxide, stirs; Add 400～600g bariumchloride and 100～200g oxygenant again, stir, make it to react completely, generate precipitation;
(3) precipitation that reaction in (2) step is obtained is carried out pickling; The consumption of acid is 15～25g;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
2. the production method of barium selenate according to claim 1 is characterized in that: comprise following technological step:
(1) take by weighing the 220g tin anhydride and add in the water of 1.8L, stirring makes tin anhydride soluble in water fully;
(2) the tin anhydride aqueous solution that obtains in (1) step adds 160g sodium hydroxide, stirs; Add 500g bariumchloride and 150g oxygenant again, stir, make it to react completely, generate precipitation;
(3) hydrochloric acid of the precipitation adding 19g that reaction in (2) step is obtained carries out pickling;
(4) precipitation after the pickling is promptly made finished product through press filtration, oven dry and after pulverizing.
3. the production method of barium selenate according to claim 1, it is characterized in that: washing acid related in (3) step is nitric acid, hydrochloric acid, sulfuric acid, formic acid or acetate.
4. the production method of barium selenate according to claim 1 and 2, it is characterized in that: related oxygenant is sodium perchlorate, sodium chlorate, potassium permanganate or hydrogen peroxide in (2) step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710031192A CN100577559C (en) | 2007-10-31 | 2007-10-31 | Method for producing barium selenate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710031192A CN100577559C (en) | 2007-10-31 | 2007-10-31 | Method for producing barium selenate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101177250A CN101177250A (en) | 2008-05-14 |
| CN100577559C true CN100577559C (en) | 2010-01-06 |
Family
ID=39403701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710031192A Active CN100577559C (en) | 2007-10-31 | 2007-10-31 | Method for producing barium selenate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100577559C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101905A (en) * | 2017-04-24 | 2017-08-29 | 阳谷祥光铜业有限公司 | A kind of method of Se content in measure impure selenium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384047A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Synthesis of several metal selenides and tellurides as semiconductor material |
-
2007
- 2007-10-31 CN CN200710031192A patent/CN100577559C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384047A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Synthesis of several metal selenides and tellurides as semiconductor material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101905A (en) * | 2017-04-24 | 2017-08-29 | 阳谷祥光铜业有限公司 | A kind of method of Se content in measure impure selenium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101177250A (en) | 2008-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102756131B (en) | Preparation method for micro-order platy silver powder | |
| CN101708835B (en) | Production method of high-purity zinc phosphate | |
| CN104944400A (en) | Technology for preparing iron phosphate through hydrolytic method | |
| CN103408041B (en) | The production technique of Quilonum Retard | |
| CN104163449A (en) | Preparation method of gamma-copper iodide | |
| CN104084598A (en) | Production method for solar cell high-density monodisperse silver powder | |
| WO2023142672A1 (en) | Preparation method for high-purity iron phosphate and use thereof | |
| CN104070180A (en) | Production method for high-density silver powder for solar cell conductive silver paste | |
| CN101348431B (en) | Method for producing low lead light density granular calcium citrate | |
| CN102153056B (en) | Technology for continuously producing hydrazine hydrate | |
| CN101525752B (en) | Clean production method for high-purity cobaltosic oxide powder | |
| CN103303879A (en) | Preparation method of high-purity tellurium dioxide powder | |
| CN101844793A (en) | Production technique of high-activity plating-grade copper oxide | |
| CN100577559C (en) | Method for producing barium selenate | |
| CN103318976B (en) | A kind of technique being prepared tricobalt tetroxide by cobalt-carrying solution | |
| CN101224901A (en) | Continuous preparation method of high-purity magnesium hydroxide | |
| CN102674256A (en) | Method for preparing high-purity chlorine dioxide and sodium chlorite by ferrous sulfide method | |
| CN101723420B (en) | Method for preparing thermocompressed polycrystalline magnesium fluoride powder | |
| CN102085483A (en) | Novel catalyst for urea method hydrazine hydrate production process | |
| CN114314643A (en) | Preparation method and application of calcium stannate | |
| WO2023019746A1 (en) | Low-cost preparation method for magnesium-aluminum hydrotalcite | |
| CN101172584A (en) | Production process of zincium selenious acid | |
| CN101987727B (en) | Preparation method of pH standard reagent disodium hydrogen phosphate | |
| CN105460984A (en) | Preparation method for nickel hydroxide quantum dot | |
| CN102556975B (en) | Method for preparing sodium chlorite by zinc sulfide method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG VITAL RARE MATERIAL CO., LTD. Free format text: FORMER NAME: QINGYUAN VITAL RARE MATERIAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 511500 Qingyuan province Qingxin County town of industrial zone (next to the Dam Road) Patentee after: Guangdong Vital Rare Material Co., Ltd. Address before: 511500, Guangdong, Qingyuan province Qingxin County Town Industrial Zone Patentee before: Vital Materials Co., Limited |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220519 Address after: No. 1116-1, building 1, Dianzhong Business Plaza, Dianzhong new area, Kunming, Yunnan 650212 Patentee after: Kunming forerunner New Material Technology Co.,Ltd. Address before: 511500 Industrial Zone, wo Yun town, Qingxin County, Qingyuan, Guangdong (beside the fish dam road) Patentee before: FIRST RARE MATERIALS Co.,Ltd. |