CN1168661C - Method for preparing strontium carbonate - Google Patents
Method for preparing strontium carbonate Download PDFInfo
- Publication number
- CN1168661C CN1168661C CNB021388717A CN02138871A CN1168661C CN 1168661 C CN1168661 C CN 1168661C CN B021388717 A CNB021388717 A CN B021388717A CN 02138871 A CN02138871 A CN 02138871A CN 1168661 C CN1168661 C CN 1168661C
- Authority
- CN
- China
- Prior art keywords
- strontium
- parts
- strontium carbonate
- barium
- soluble
- 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 - Fee Related
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention relates to a method for preparing strontium carbonate. After pulverized, celestite with 30 to 95% of the strontium sulfate content reacts with soluble carbonate to prepare crude strontium carbonate. In the process of the reaction, a barium removing agent is added to restrain barium sulfate from being converted into barium carbonate. Then, the crude strontium carbonate acts with an acidifying reagent to obtain soluble strontium salt solution. After impurities are removed, the strontium salt solution reacts with a carbonizing reagent to prepare the strontium carbonate. The method is characterized in that in the process of the double decomposition reaction between the celestite and the soluble carbonate for preparing the crude strontium carbonate, soluble sulfate is added to restrain the conversion of the strontium sulfate so that the purpose of removing barium can be achieved. That the strontium carbonate is prepared by removing the barium from the celestite by the one-step method is realized. Thereby, the method has the advantages of simple manufacturing process and low fabrication cost of the obtained product.
Description
Technical field
The present invention relates to a kind of method for preparing Strontium carbonate powder, specifically, relate to a kind of method for preparing Strontium carbonate powder from the lazurite single stage method except that barium.
Background technology
Strontium carbonate powder is a kind of important chemical material, has a wide range of applications in many fields such as electronic industry, magneticsubstance, ceramic glaze and special glasss.Strontium carbonate powder prepares by carbon reduction method or double decomposition from lazurite (main component is a Strontium Sulphate).Carbon reduction method just progressively is eliminated owing to produce a large amount of harmful hydrogen sulfide in the production process.To be lazurite and soluble carbon hydrochlorate prepare a kind of method of Strontium carbonate powder by replacement(metathesis)reaction to double decomposition, and little, the constant product quality of its pollution is the method for mainly producing Strontium carbonate powder from now on.If but the content of impurity barium just must be set up independent barium-removing process when higher (barium sulfate content is higher than more than 2%) in process of production in the raw material lazurite, to guarantee that barium content meets national standard in the strontium carbonate product.Thereby this method complex process, and production cost of products is higher.
In August, 1994 the 11st～18 page of " external metallic ore ore dressing " magazine " from the laboratory to plant-scale lazurite ore dressing " article discloses the method that adopts flotation process ore dressing purification lazurite.Can obtain SrSO by the method that is provided
4The concentrate of grade 〉=95%.But for the higher celestite ore of impurity barium content, the barium sulfate content of the above-mentioned concentrate that this method obtains is still higher.With this SrSO
4The concentrate of grade 〉=95% is a raw material, prepares Strontium carbonate powder by above-mentioned double decomposition, must set up above-mentioned independent barium-removing process equally.
Summary of the invention
The present invention provides a kind of method for preparing Strontium carbonate powder at the problems referred to above, and this method technology is simple, and the products obtained therefrom cost is lower.
Technical scheme provided by the invention is: a kind of method for preparing Strontium carbonate powder, with Strontium Sulphate content is that to purify to Strontium Sulphate content according to a conventional method be 75～95wt% for the lazurite of 30～95wt%, get 100 parts of above-mentioned celestite powders that obtain through purification and be broken to 10～150 orders, be scattered in 100～500 parts of water, the ammonia soln that adds 5～35 parts of barium removal agent soluble sulphates or bicarbonate of ammonia, 30～75 parts of soluble carbon hydrochlorates, 60～95 ℃ of reactions 3～12 hours, filter thick Strontium carbonate powder; Ratio in 100 parts of lazurites and 100～200 parts of water is scattered in thick Strontium carbonate powder in the water, adds 45～150 parts of acidizing reagents, reacts 2～5 hours; Filter strontium salt filtrate; The ammoniacal liquor that adds 0.5～5 part of 18～20wt% in filtrate is heated to 60～90 ℃, filters, and 25～50 parts of carbonization reagent are joined in the filtrate, stirs 1～3 hour; Filtration, washing, oven dry promptly get Strontium carbonate powder, and above umber is parts by weight.
Above-mentioned soluble carbon hydrochlorate is yellow soda ash or volatile salt etc.
Above-mentioned barium removal agent is a soluble sulphate, as ammonium sulfate, sodium sulfate or vitriolate of tartar etc.
Above-mentioned acidizing reagent is hydrochloric acid, nitric acid, ammonium chloride or ammonium nitrate etc.
The ammonia soln that above-mentioned carbonization reagent is yellow soda ash, volatile salt or bicarbonate of ammonia etc.
The present invention carries out replacement(metathesis)reaction at lazurite and soluble carbon hydrochlorate and prepares in the process of thick Strontium carbonate powder, adds the conversion that soluble sulphate suppresses Strontium Sulphate, reaches except that the barium purpose, has realized that removing barium from the lazurite single stage method prepares Strontium carbonate powder.Thereby technology of the present invention is simple, and the products obtained therefrom cost is lower.
Embodiment
Strontium Sulphate content in the raw materials used lazurite of the present invention is 30～95%, preferably purifies through ore dressing process before the use, and content brings up to 75～95%, to reduce the manufacturing cost of Strontium carbonate powder.What therefore, below provide is that lazurite after purifying is the embodiment of raw material.
Embodiment 1: get 100 grams and be crushed to 150 purpose lazurites (Strontium Sulphate content is 86%) and be scattered in slurrying in 300 ml waters, add 12 gram sodium sulfate, 52 gram yellow soda ash were heated to 90 ℃ of stirring reactions 3 hours, filtered, washing.Getting filter residue is scattered in 150 ml waters, add 98 gram concentrated hydrochloric acid acidifyings 2 hours, filter, get the ammoniacal liquor that filtrate adds 5 milliliter 18～20%, be heated to 60 ℃ and stirred 30 minutes down, remove by filter throw out, get 51 gram yellow soda ash simultaneously and progressively join in the filtrate, stirred 1 hour, filter, wash, dry, obtain the Strontium carbonate powder product of white, barium carbonate content 1.5%.
Embodiment 2: get 100 grams and be crushed to 100 purpose lazurites (Strontium Sulphate content is 90%) and be scattered in 150 ml waters, add 10 gram ammonium sulfate, stirring pulping; The strong aqua that other gets 42 gram bicarbonate of ammonia, 45 grams 18～20% is made into 150 ml water solution, joins in the lazurite slurries, is heated to 60 ℃ of stirring reactions 5 hours, filters, washs.Get filter residue and be scattered in 100 ml waters, add 66 grams, 65% nitric acid acidifying 2 hours, filter, get the ammoniacal liquor that filtrate adds 5 milliliter 18～20%, be heated to 80 ℃ and stirred 30 minutes down, remove by filter throw out, get 38 gram bicarbonate of ammonia simultaneously, the ammoniacal liquor that adds 20 milliliter 18～20% is made into 100 ml solns, progressively join in the filtrate, stirred 1 hour, filter, wash, dry, obtain the Strontium carbonate powder product of white, barium carbonate content 1.2%.
Embodiment 3: get 100 grams and be crushed to 50 purpose lazurites (Strontium Sulphate content is 82%) and be scattered in 150 ml waters, add 9 gram ammonium sulfate, stirring pulping; The strong aqua that other gets 38 gram bicarbonate of ammonia, 40 grams 18～20% is made into 150 ml water solution, joins in the lazurite slurries, is heated to 60 ℃ of stirring reactions 5 hours, filters, washs.Get filter residue and be scattered in 200 ml waters, add 76 gram ammonium nitrate and be heated to 95 ℃ of acidifyings 4 hours, filter, get the ammoniacal liquor that filtrate adds 5 milliliter 18～20%, be heated to 70 ℃ and stirred 30 minutes down, remove by filter throw out, get 35 gram bicarbonate of ammonia simultaneously, the ammoniacal liquor that adds 20 milliliter 18～20% is made into 100 ml solns, progressively join in the filtrate, stirred 1 hour, filter, wash, dry, obtain the Strontium carbonate powder product of white, barium carbonate content 1.7%.
Embodiment 4: get 100 grams and be crushed to 10 purpose lazurites (Strontium Sulphate content is 92%) and be scattered in slurrying in 300 ml waters, add 15 gram vitriolate of tartar, 51 gram volatile salts were heated to 70 ℃ of stirring reactions 3 hours, filtered, washing.Getting filter residue is scattered in 100 ml waters, add 56.5 gram ammonium chlorides and be heated to 95 ℃ of acidifyings 5 hours, filter, get the ammoniacal liquor that filtrate adds 5 milliliter 18～20%, being heated to 90 ℃ stirred 20 minutes down, remove by filter throw out, get 50 gram volatile salts simultaneously, progressively join in the filtrate, stirred 1 hour, filter, wash, dry, obtain the Strontium carbonate powder product of white, barium carbonate content 1.9%.
Claims (4)
1. method for preparing Strontium carbonate powder, with Strontium Sulphate content is that to purify to Strontium Sulphate content according to a conventional method be 75～95wt% for the lazurite of 30～95wt%, get 100 parts of above-mentioned celestite powders that obtain through purification and be broken to 10～150 orders, be scattered in 100～500 parts of water, add 5～35 parts of barium removal agent soluble sulphates, the ammonia soln of 30～75 parts of soluble carbon hydrochlorates or bicarbonate of ammonia, 60～95 ℃ of reactions 3～12 hours, filter thick Strontium carbonate powder; Ratio in 100 parts of lazurites and 100～200 parts of water is scattered in thick Strontium carbonate powder in the water, adds 45～150 parts of acidizing reagents, reacts 2～5 hours; Filter strontium salt filtrate; The ammoniacal liquor that adds 0.5～5 part of 18～20wt% in filtrate is heated to 60～90 ℃, filters, and 25～50 parts of carbonization reagent are joined in the filtrate, stirs 1～3 hour; Filtration, washing, oven dry promptly get Strontium carbonate powder, and above umber is parts by weight.
2. method according to claim 1 is characterized in that: the soluble carbon hydrochlorate is yellow soda ash or volatile salt, and soluble sulphate is ammonium sulfate, sodium sulfate or vitriolate of tartar.
3. method according to claim 1 and 2 is characterized in that: acidizing reagent is hydrochloric acid, nitric acid, ammonium chloride or ammonium nitrate.
4. method according to claim 1 and 2 is characterized in that: carbonization reagent is the ammonia soln of yellow soda ash, volatile salt or bicarbonate of ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021388717A CN1168661C (en) | 2002-08-02 | 2002-08-02 | Method for preparing strontium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021388717A CN1168661C (en) | 2002-08-02 | 2002-08-02 | Method for preparing strontium carbonate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1394809A CN1394809A (en) | 2003-02-05 |
| CN1168661C true CN1168661C (en) | 2004-09-29 |
Family
ID=4749763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021388717A Expired - Fee Related CN1168661C (en) | 2002-08-02 | 2002-08-02 | Method for preparing strontium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1168661C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987736A (en) * | 2009-08-05 | 2011-03-23 | 天津市化学试剂研究所 | Preparation method of high-purity strontium carbonate |
| CN102399999B (en) * | 2010-09-15 | 2016-01-20 | 有研稀土新材料股份有限公司 | A kind of rare earth and strontium association polymetallic ore comprehensive recycling process altogether |
| CN102050478B (en) * | 2010-12-29 | 2012-04-11 | 重庆邮电大学 | Method for removing barium in strontium salt production |
| CN105776300A (en) * | 2016-01-29 | 2016-07-20 | 常州创索新材料科技有限公司 | Method for preparing high-purity strontium carbonate |
| CN105836780A (en) * | 2016-03-28 | 2016-08-10 | 余国礼 | Method of converting celestite into strontium carbonate under cavitation effect |
| CN108675335B (en) * | 2018-09-03 | 2019-12-31 | 南昌航空大学 | Bionic preparation method of strontium carbonate crystal |
| CN110422866A (en) * | 2019-09-10 | 2019-11-08 | 西昌学院 | The method for preparing strontium carbonate using western rare-earth tailing is climbed |
| CN115637336B (en) * | 2022-10-18 | 2024-01-30 | 中国地质科学院矿产综合利用研究所 | Process for preparing strontium carbonate from high barium strontium ore |
-
2002
- 2002-08-02 CN CNB021388717A patent/CN1168661C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1394809A (en) | 2003-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100542968C (en) | Utilize the method for sodium hydroxide clean production of titanium dioxide | |
| CN1884099A (en) | Method for preparing manganese sulfate by reduction leaching of manganese ore using discard molasses and sulfuric acid | |
| CN114906830B (en) | Method for controllably preparing battery-grade iron phosphate from pyrite cinder | |
| CN1884173A (en) | Method for combined production of gypsum, active carbon, and copperas by using waste sulfuric acid and carbide slag | |
| CN1168661C (en) | Method for preparing strontium carbonate | |
| CN1317191C (en) | Process for preparing high purity strontium carbonate | |
| CN101838007A (en) | Process for preparing nanometer calcium sulfate | |
| CN113774220B (en) | Method for recovering molybdenum, bismuth and vanadium from waste catalysts of acrylic acid and methacrylic acid and esters thereof | |
| CN100532273C (en) | Method for clean production of titanium dioxide by using potassium hydroxide | |
| CN102234127A (en) | Process for preparing nano calcium sulfate | |
| CN117305592A (en) | Method for extracting vanadium from vanadium-containing alkaline residue and synergistic harmless utilization of vanadium-containing alkaline residue and secondary aluminum ash | |
| CN110817935A (en) | Method for preparing high-purity zinc oxide by utilizing zinc renewable resources | |
| CN1264755C (en) | Prepn of chromium subsulfate | |
| CN112939094B (en) | Method for preparing nano cobalt tungstate and recovering crude titanium slag | |
| CN1305946A (en) | Process for preparing feed-class calcium dihydrogen phosphate and high-phosphorus products | |
| CN102126735B (en) | Method for extracting tschermigite from coal gangue or stone coal | |
| CN100375716C (en) | Method of recovering V2O5 from Bayer process mother liquid | |
| CN1313379C (en) | Prepn process of iron red with salfated roasted dreg of sulfur containing aurin ore | |
| CN1034593C (en) | Process for preparing zinc oxide | |
| CN1053412A (en) | The bicarbonate of ammonia neutralisation is produced zinc oxide | |
| CN115504442B (en) | Preparation method of high-purity optical glass additive lithium phosphate | |
| CN1025180C (en) | Method for extracting magnesium oxide from serpentine | |
| KR100329483B1 (en) | Method for preparing nickel compound from waste nickel compound | |
| CN1046880A (en) | The wet method preparation method of multiple antimony product | |
| CN115724453B (en) | Purification and recovery method of ferric phosphate mother liquor |
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 | ||
| 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 |