CN107758699A - The preparation method of sodium acid carbonate - Google Patents
The preparation method of sodium acid carbonate Download PDFInfo
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- CN107758699A CN107758699A CN201710994656.3A CN201710994656A CN107758699A CN 107758699 A CN107758699 A CN 107758699A CN 201710994656 A CN201710994656 A CN 201710994656A CN 107758699 A CN107758699 A CN 107758699A
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- preparation
- sodium
- acid carbonate
- sodium acid
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/10—Preparation of bicarbonates from carbonates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Abstract
The present invention relates to the preparation method of sodium acid carbonate, belong to chemical field.The technical problems to be solved by the invention are to provide the preparation method of sodium acid carbonate, and this method comprises the following steps：Ammonium hydrogencarbonate and/or carbonic acid ammonia are added into vanadic acid saturated aqueous solution of sodium, reaction terminates rear separation of solid and liquid, collects solid, produces.Sodium acid carbonate can easily be prepared using the inventive method, production cost is low, environment-friendly, and the high purity more than 96% of products obtained therefrom, has significant social and economic benefit.
Description
Technical field
The present invention relates to the preparation method of sodium acid carbonate, belong to chemical field.
Background technology
At present, the technique for preparing sodium acid carbonate typically uses sodium sulphate or sodium chloride as raw material, using ammonium hydrogencarbonate as reaction
Thing.For example patent document CN104445287A discloses a kind of method using converting waste caustic soda for sodium acid carbonate in gas cleaning：Profit
Contain finite concentration Na with what is generated after salkali waste and flue solid/liquid/gas reactions, mixing, washing2SO4Cleaning solution, then with ammonium hydrogen carbonate react
And sodium acid carbonate is obtained, including prepare metabisulfite solution, prepare sodium acid carbonate and purify three steps, realize and utilize salkali waste
Waste gas, the purpose of the treatment of wastes with processes of wastes against one another are administered, but also can obtain and be worth higher Sodium bicarbonate product, so the energy is not only saved,
Pollution is reduced, the cost of gas cleaning is also reduced and avoids the secondary pollution of gas cleaning, thoroughly solve salkali waste pair
The pollution of environment, social benefit are very notable.
In addition, document《Saltcake double decomposition circulation process sodium acid carbonate new technology》Report using saltcake as raw material, using multiple
The method that the new technology of Decomposition Cycle prepares sodium acid carbonate, optimum process condition is found out with orthogonal design, product quality meets
GB1606-79 regulation.
So far, there is not yet preparing the relevant report of sodium acid carbonate using sodium vanadate as raw material.
The content of the invention
It is an object of the invention to provide the preparation method of sodium acid carbonate.
The invention provides the preparation method of sodium acid carbonate, comprise the following steps：Added into vanadic acid saturated aqueous solution of sodium
Ammonium hydrogencarbonate and/or carbonic acid ammonia, reaction terminate rear separation of solid and liquid, collect solid, produce.
Further, it is micro to occur in solution when sodium vanadate solution concentration or sodium vanadate crystallization being prepared into saturated solution
Crystal is advisable.
Further, ammonium hydrogencarbonate and/or carbonic acid ammonia add in powder form.
Further, in ammonium hydrogencarbonate and/or carbonic acid ammonia carbanion molal quantity：Sodium ion molal quantity in sodium vanadate
=(1~3)：3.
Further, reaction temperature is 20~50 DEG C.
Further, the reaction time is 30~60min.
Further, reaction is passed through carbon dioxide after terminating and refiltered.
Further, the time that is passed through of carbon dioxide is 30~60min.
Further, it is dried after collecting solid.
Further, solid is in 40~50 DEG C of drying.
The invention provides a kind of preparation method of sodium acid carbonate, has advantages below：
1st, sodium acid carbonate can easily be prepared using the inventive method, production cost is low, environment-friendly, Er Qiesuo
Obtain the high purity more than 96% of product.
2nd, the inventive method can dock vanadium chromium slag process for extracting vanadium, with sodium vanadate solution caused by vanadium chromium slag process for extracting vanadium or
Sodium vanadate crystallization prepares sodium acid carbonate for raw material, has not only reclaimed sodium resource therein, and sodium resource can return again to calcining process, section
About production cost, moreover, sodium vanadate is after carrying sodium, the preparation of favourable later stage vanadium product.
Embodiment
The raw material that is used in the specific embodiment of the invention, equipment are known product, are obtained by buying commercially available prod.
The invention provides the preparation method of sodium acid carbonate, this method comprises the following steps：To vanadic acid saturated aqueous solution of sodium
Middle addition ammonium hydrogencarbonate and/or carbonic acid ammonia, reaction terminate rear separation of solid and liquid, collect solid, produce.
Inventor optimize vanadium chromium slag process for extracting vanadium precipitation process when, original trial with ammonium hydrogen carbonate in the basic conditions
Precipitation, the precipitation for as a result finding to separate out not is precipitation target product ammonium metavanadate, but the sodium acid carbonate of high-purity, so as to provide
A kind of simple and easy method for preparing sodium acid carbonate.Wherein, if reaction raw materials vanadic acid sodium water solution is unsaturated, in reaction solution
It is difficult to separate out precipitation, sodium acid carbonate yield can be caused to be greatly reduced.
Further, after above-mentioned reaction terminates, carbon dioxide is passed through, then carries out separation of solid and liquid, can further improve carbon
The yield of sour hydrogen sodium.
Embodiment 1 prepares sodium acid carbonate using the inventive method
Vanadic acid sodium water solution 1000ml (wherein TV=32g/l, Na+=65g/l), 240ml is concentrated into, has crystallization in solution
Thing occurs, and stopping concentration, adds ammonium hydrogencarbonate powder 74.42g, in 20 DEG C of reaction 30min of normal temperature, is passed through carbon dioxide and continues instead
30min is answered, is filtered, washs in 40 DEG C of drying, obtains sodium acid carbonate 67.2g, measures sodium acid carbonate purity as 96.5%.
Embodiment 2 prepares sodium acid carbonate using the inventive method
Vanadic acid sodium water solution 200ml (wherein TV=22g/l, Na+=45g/l), 100ml is concentrated into, has crystallization in solution
Thing occurs, and stops concentration, adds carbonic acid ammonia powder 37.5g, reacts 60min at 50 DEG C, is passed through carbon dioxide and continues to react
60min, filter, washing, in 50 DEG C of drying, obtain sodium acid carbonate 27.8g, measure sodium acid carbonate purity as 96.7%.
Embodiment 3 prepares sodium acid carbonate using the inventive method
Sodium vanadate crystal 50g (wherein TV=11.43g, Na=22g), add 50ml water to stir, be configured to dense band crystallization
The saturated solution of thing, ammonium hydrogencarbonate powder 75.5g is added, reacts 60min at 50 DEG C, be passed through carbon dioxide and continue to react 60min,
Filtering, wash in 50 DEG C of drying, obtain sodium acid carbonate 68.3g, measure sodium acid carbonate purity as 96.1%.
Embodiment 4 prepares sodium acid carbonate using the inventive method
Sodium vanadate crystal 1000g (wherein TV=22.86%, Na=44%), add 1000ml water to stir, be configured to dense
Saturated solution with crystal, carbonic acid ammonia powder 612.17g is added, react 30min at 20 DEG C, be passed through carbon dioxide and continue to react
30min, filtering, wash in 40 DEG C of drying, obtain sodium acid carbonate 1285g, measure sodium acid carbonate purity as 96.0%.
Claims (8)
1. the preparation method of sodium acid carbonate, it is characterized in that：Comprise the following steps：Bicarbonate is added into vanadic acid saturated aqueous solution of sodium
Ammonia and/or carbonic acid ammonia, reaction terminate rear separation of solid and liquid, collect solid, produce.
2. preparation method as claimed in claim 1, it is characterized in that：Carbanion rubs in ammonium hydrogencarbonate and/or carbonic acid ammonia
That number：Sodium ion molal quantity=(1~3) in sodium vanadate：3.
3. preparation method as claimed in claim 1 or 2, it is characterized in that：Reaction temperature is 20~50 DEG C.
4. the preparation method as described in claims 1 to 3 any one, it is characterized in that：Reaction time is 30~60min.
5. preparation method as claimed in claim 1, it is characterized in that：Reaction is passed through carbon dioxide after terminating and refiltered.
6. preparation method as claimed in claim 5, it is characterized in that：The time that is passed through of carbon dioxide is 30~60min.
7. preparation method as claimed in claim 1, it is characterized in that：It is dried after collecting solid.
8. preparation method as claimed in claim 7, it is characterized in that：Solid is in 40~50 DEG C of drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994656.3A CN107758699A (en) | 2017-10-23 | 2017-10-23 | The preparation method of sodium acid carbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994656.3A CN107758699A (en) | 2017-10-23 | 2017-10-23 | The preparation method of sodium acid carbonate |
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| Publication Number | Publication Date |
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| CN107758699A true CN107758699A (en) | 2018-03-06 |
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| CN201710994656.3A Pending CN107758699A (en) | 2017-10-23 | 2017-10-23 | The preparation method of sodium acid carbonate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3313593A (en) * | 1962-08-23 | 1967-04-11 | African Explosives & Chem | Process for the production of sodium carbonate and hydrochloric acid and/or chlorine |
| CN103172089A (en) * | 2011-12-20 | 2013-06-26 | 索尔维公司 | Method for preparing sodium bicarbonate |
| CN103420416A (en) * | 2012-05-15 | 2013-12-04 | 攀钢集团攀枝花钢钒有限公司 | Ammonium metavanadate preparation method |
| CN105986131A (en) * | 2014-12-29 | 2016-10-05 | 湖州欧美化学有限公司 | Method for preparing ammonium metavanadate from vanadium-containing material |
| CN107760868A (en) * | 2017-11-06 | 2018-03-06 | 中南大学 | A kind of method that vanadium, chromium and sodium carbonate salt are separated and recovered in the liquid from Leaching of Vanadium from Vanadium slag |
-
2017
- 2017-10-23 CN CN201710994656.3A patent/CN107758699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3313593A (en) * | 1962-08-23 | 1967-04-11 | African Explosives & Chem | Process for the production of sodium carbonate and hydrochloric acid and/or chlorine |
| CN103172089A (en) * | 2011-12-20 | 2013-06-26 | 索尔维公司 | Method for preparing sodium bicarbonate |
| CN103420416A (en) * | 2012-05-15 | 2013-12-04 | 攀钢集团攀枝花钢钒有限公司 | Ammonium metavanadate preparation method |
| CN105986131A (en) * | 2014-12-29 | 2016-10-05 | 湖州欧美化学有限公司 | Method for preparing ammonium metavanadate from vanadium-containing material |
| CN107760868A (en) * | 2017-11-06 | 2018-03-06 | 中南大学 | A kind of method that vanadium, chromium and sodium carbonate salt are separated and recovered in the liquid from Leaching of Vanadium from Vanadium slag |
Non-Patent Citations (1)
| Title |
|---|
| MIECZVSLAW TRVPUC等: "Solubility Investigations in the NaV03 + NH4HC03 + NH4V03 + NaHC03 + H20 system", 《POLISH JOURNAL OF CHEMICAL TECHNOLOGY》 * |
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Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |