CN101823743A - Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution - Google Patents
Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution Download PDFInfo
- Publication number
- CN101823743A CN101823743A CN 201010169004 CN201010169004A CN101823743A CN 101823743 A CN101823743 A CN 101823743A CN 201010169004 CN201010169004 CN 201010169004 CN 201010169004 A CN201010169004 A CN 201010169004A CN 101823743 A CN101823743 A CN 101823743A
- Authority
- CN
- China
- Prior art keywords
- soda ash
- ammonium chloride
- filter cake
- reaction
- filtrate
- 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.)
- Pending
Links
Images
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Paper (AREA)
Abstract
The invention belongs to the technical field of treatment and utilization of chemical 'three wastes', and particularly relates to a method for co-production of sodium carbonate and ammonium chloride in the preparation of calcium carbonate by waste soda ash solution, which mainly comprises the following steps that: waste ammonia solution and ammonium carbonate are placed in a corrosion-resistant reactor for reaction, and another chemical reaction is carried out simultaneously to generate sodium carbonate and ammonium chloride; the filter cake after filtration is washed, dehydrated, dried, crushed, weighed and packaged, thereby obtaining a calcium carbonate product; and the filtrate then reacts with the original residue filtrate to generate mixture of calcium carbonate and the like; filtration is carried then, the filter cake is washed, spun, dried, crushed, weighed and packaged, thereby obtaining a finished calcium carbonate product, and the filtrate is distilled under reduced pressure, thereby obtaining sodium chloride crystals and ammonium chloride crystals. The invention has the advantages of low production cost, high profit, large market demand and simple process and production equipment, and is a practical method for treatment and utilization. Moreover, the method not only can create considerable economic value, but also can eliminate chemical wastes and control the environmental pollution.
Description
Technical field
The invention belongs to the technical field of soda industry multipurpose use of three types of wastes, especially a kind of method of making lime carbonate coproduction yellow soda ash and ammonium chloride with waste soda ash solution.
Technical background
The ammonia still process of soda industry is an important operation unit in the solvay soda process, and this unitary disadvantage is exactly to need to get rid of a large amount of evaporated waste ammonia liquids in the process of ammonia still process.Will cause no small pollution to physical environment if this waste liquid is handled bad random discharging, therefore, the evaporated waste ammonia liquid of handling and make good use of solvay soda process also is the important link of a step of soda industry.
Chinese patent literature, application number are that 200810129372.9 document discloses a kind of waste soda ash solution and calcium carbide waste slag of utilizing and removes SO
2Method.Utilize the CaCl in the waste soda ash solution
2With the SO in the flue gas
2Reaction generates white CaSO
3Precipitation is emitted HCl, the very low hydrochloric acid of the water-soluble formation concentration of HCl; With the Ca in the calcium carbide waste slag (OH)
2In and HCl, generate CaCl
2And water, CaCl
2Recycle.It is main in sweetening process that consume is Ca (OH) in the calcium carbide waste slag
2If this locality does not have waste soda ash solution, can buy the Calcium dichloride dihydrate (CaCl that produces by waste soda ash solution
22HO), be mixed with CaCl
2Solution.This method removes SO when consuming waste soda ash solution
2,, but consume waste soda ash solution by sulfur removal technology, quantitatively very little, intractable is fallen the waste liquid that soda industry produces.And waste soda ash solution also of no use is at present made the relevant report of the method for lime carbonate coproduction yellow soda ash and ammonium chloride.
Summary of the invention
The invention provides a kind of not only with low cost, be easy to realize, treatment capacity is big, and technology and production unit are simply made the method for lime carbonate coproduction yellow soda ash and ammonium chloride with waste soda ash solution.
To achieve the above object, technical scheme of the present invention is:
A kind of method with waste soda ash solution manufacturing lime carbonate coproduction yellow soda ash and ammonium chloride, manufacturing step is as follows:
Steps A, residue filtrate is dropped in the corrosion-resistant reactor with the ratio of volatile salt with mass ratio 1: 0.66～1.06 in calcium chloride, stir down that reaction generates lime carbonate and ammonium chloride, also another chemical reaction takes place simultaneously in the corrosion-resistant reactor and generate yellow soda ash and ammonium chloride with the ratio of mass ratio 1: 1.44～1.84;
Step B, resultant of reaction in the steps A is obtained filter cake and clear liquor with suction filter one suction filtration;
Step C, filter cake that suction filtration among the step B is obtained successively with centrigugal swing dryer one, moisture eliminator one, pulverizer one, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be the yellow soda ash product;
Step D, clear liquor that suction filtration among the step B is obtained in yellow soda ash again with original residue filtrate in calcium chloride, put in the reactor by mass ratio 1: 0.85～1.25 and to react the mixture that resultant of reaction and original ammonium chloride are formed; Resultant of reaction mainly is lime carbonate and sodium-chlor.
Step e, mixture among the step D is obtained filter cake and clear liquor with suction filter two suction filtrations;
Step F, filter cake that suction filtration in the step e is obtained successively with centrigugal swing dryer two, moisture eliminator two, pulverizer two, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be calcium carbonate product;
Step G, the filtrate that suction filtration in the step e is obtained successively obtain sodium-chlor and ammonia chloride crystal with the underpressure distillation of underpressure distillation device.
The present invention mainly is that the present invention mainly is the evaporated waste ammonia liquid that utilizes solvay soda process, and the main component in the evaporated waste ammonia liquid of solvay soda process is: main components such as calcium chloride, sodium-chlor, lime carbonate, calcium oxide, calcium sulfate, magnesium hydroxide.Other trace ingredientss also are no more than 3～5% and just are used as impurity and can have ignored.The present invention drops into the corrosion-resistant reactor reaction with evaporated waste ammonia liquid and volatile salt, another chemical reaction also takes place at the same time generate yellow soda ash and ammonium chloride; The filter cake of suction filtration through washing dehydration, drying, pulverize, checking the weight is packaged to be calcium carbonate product; Filtrate generates mixtures such as lime carbonate with the original residue filtrate reaction again; Suction filtration again, filter cake through washing dry, dry, pulverize, checking the weight is packaged to be the lime carbonate finished product, filtrate successively obtains sodium-chlor and ammonia chloride crystal through underpressure distillation; Not only production cost is cheap, profit is high in the present invention, the huge market demand, and technology and production unit are simple, and treatment capacity is big; Be a kind of relatively actual processing and utilize method, this method not only can create considerable economic value, but also has eliminated chemical sludge, administered environmental pollution.
Reaction principle of the present invention is:
CaCl
2+(NH
4)
2CO
3＝＝＝＝CaCO
3+2NH
4C1
2NaCl+(NH
4)
2CO
3＝＝＝＝Na
2CO
3+2NH
4Cl
Na
2CO
3+CaCl
2＝＝＝＝CaCO
3+2NaCl
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Wherein:
1---corrosion-resistant reactor, 2---suction filter one, 3---centrigugal swing dryer one, 4---moisture eliminator one, 5---pulverizer one, 6---yellow soda ash product, 7---reactor, 8---suction filter two, 9---centrigugal swing dryer two, 10---moisture eliminator two, 11---pulverizer two, 12---calcium carbonate product, 13---underpressure distillation device, 14---sodium-chlor, 15---ammonia chloride crystal.
Concrete embodiment
Embodiment 1
A kind of method with waste soda ash solution manufacturing lime carbonate coproduction yellow soda ash and ammonium chloride, manufacturing step is as follows:
Steps A, residue filtrate is dropped into corrosion-resistant reactor 1 li with volatile salt with 1: 0.66 ratio of mass ratio in calcium chloride, stir reaction generation lime carbonate and ammonium chloride down, also another chemical reaction takes place simultaneously in the corrosion-resistant reactor and generate yellow soda ash and ammonium chloride with 1: 1.44 ratio of mass ratio;
Step B, resultant of reaction in the steps A is obtained filter cake and clear liquor with suction filter one 2 suction filtrations;
Step C, filter cake that suction filtration among the step B is obtained successively with centrigugal swing dryer 1, moisture eliminator 1, pulverizer 1, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be yellow soda ash product 6;
Step D, clear liquor that suction filtration among the step B is obtained in yellow soda ash again with original residue filtrate in calcium chloride, put into reactor at 1: 0.85 by mass ratio and react for 7 li, the mixture that resultant of reaction and original ammonium chloride are formed; Resultant of reaction mainly is lime carbonate and sodium-chlor.
Step e, mixture among the step D is obtained filter cake and clear liquor with suction filter 28 suction filtrations;
Step F, filter cake that suction filtration in the step e is obtained successively with centrigugal swing dryer 29, moisture eliminator 2 10, pulverizer 2 11, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be calcium carbonate product 12;
Step G, the filtrate that suction filtration in the step e is obtained successively obtain sodium-chlor 14 and ammonia chloride crystal 15 with 13 underpressure distillation of underpressure distillation device.
A kind of method with waste soda ash solution manufacturing lime carbonate coproduction yellow soda ash and ammonium chloride, manufacturing step is as follows:
Steps A, residue filtrate is dropped into corrosion-resistant reactor 1 li with volatile salt with 1: 0.86 ratio of mass ratio in calcium chloride, stir reaction generation lime carbonate and ammonium chloride down, also another chemical reaction takes place simultaneously in the corrosion-resistant reactor and generate yellow soda ash and ammonium chloride with 1: 1.64 ratio of mass ratio;
Step B, resultant of reaction in the steps A is obtained filter cake and clear liquor with suction filter one 2 suction filtrations;
Step C, filter cake that suction filtration among the step B is obtained successively with centrigugal swing dryer 1, moisture eliminator 1, pulverizer 1, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be yellow soda ash product 6;
Step D, clear liquor that suction filtration among the step B is obtained in yellow soda ash again with original residue filtrate in calcium chloride, put into reactor at 1: 1.05 by mass ratio and react for 7 li, the mixture that resultant of reaction and original ammonium chloride are formed; Resultant of reaction mainly is lime carbonate and sodium-chlor.
Step e, mixture among the step D is obtained filter cake and clear liquor with suction filter 28 suction filtrations;
Step F, filter cake that suction filtration in the step e is obtained successively with centrigugal swing dryer 29, moisture eliminator 2 10, pulverizer 2 11, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be calcium carbonate product 12;
Step G, the filtrate that suction filtration in the step e is obtained successively obtain sodium-chlor 14 and ammonia chloride crystal 15 with 13 underpressure distillation of underpressure distillation device.
A kind of method with waste soda ash solution manufacturing lime carbonate coproduction yellow soda ash and ammonium chloride, manufacturing step is as follows:
Steps A, residue filtrate is dropped into corrosion-resistant reactor 1 li with volatile salt with 1: 1.06 ratio of mass ratio in calcium chloride, stir reaction generation lime carbonate and ammonium chloride down, also another chemical reaction takes place simultaneously in the corrosion-resistant reactor and generate yellow soda ash and ammonium chloride with 1: 1.84 ratio of mass ratio;
Step B, resultant of reaction in the steps A is obtained filter cake and clear liquor with suction filter one 2 suction filtrations;
Step C, filter cake that suction filtration among the step B is obtained successively with centrigugal swing dryer 1, moisture eliminator 1, pulverizer 1, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be yellow soda ash product 6;
Step D, clear liquor that suction filtration among the step B is obtained in yellow soda ash again with original residue filtrate in calcium chloride, put into reactor at 1: 1.25 by mass ratio and react for 7 li, the mixture that resultant of reaction and original ammonium chloride are formed; Resultant of reaction mainly is lime carbonate and sodium-chlor.
Step e, mixture among the step D is obtained filter cake and clear liquor with suction filter 28 suction filtrations;
Step F, filter cake that suction filtration in the step e is obtained successively with centrigugal swing dryer 29, moisture eliminator 2 10, pulverizer 2 11, carry out centrifuge dripping, drying, pulverize, checking the weight is packaged to be calcium carbonate product 12;
Step G, the filtrate that suction filtration in the step e is obtained successively obtain sodium-chlor 14 and ammonia chloride crystal 15 with 13 underpressure distillation of underpressure distillation device.
The foregoing description is preferred embodiment of the present invention, is not to be used for limiting the scope of the present invention, so all equivalences of being done with described feature of claim of the present invention and principle change or modify, all should be included within the claim scope of the present invention.
Claims (1)
1. make the method for lime carbonate coproduction yellow soda ash and ammonium chloride with waste soda ash solution for one kind, it is characterized in that: manufacturing step is as follows:
Steps A, residue filtrate is dropped into corrosion-resistant reactor (1) lining with volatile salt with the ratio of mass ratio 1: 0.66～1.06 in calcium chloride, stir down that reaction generates lime carbonate and ammonium chloride, also another chemical reaction take place simultaneously in the corrosion-resistant reactor and generate yellow soda ash and ammonium chloride with the ratio of mass ratio 1: 1.44～1.84:
Step B, resultant of reaction in the steps A is obtained filter cake and clear liquor with suction filter one (2) suction filtration;
Step C, the filter cake that suction filtration among the step B is obtained are used centrigugal swing dryer one (3), moisture eliminator one (4), pulverizer one (5) successively, carry out centrifuge dripping, drying, are pulverized, checking the weight is packaged to be yellow soda ash product (6);
Step D, clear liquor that suction filtration among the step B is obtained in yellow soda ash again with original residue filtrate in calcium chloride, put into reactor (7) lining by mass ratio 1: 0.85～1.25 and react, the mixture that resultant of reaction and original ammonium chloride are formed;
Step e, mixture among the step D is obtained filter cake and clear liquor with suction filter two (8) suction filtrations;
Step F, the filter cake that suction filtration in the step e is obtained are used centrigugal swing dryer two (9), moisture eliminator two (10), pulverizer two (11) successively, carry out centrifuge dripping, drying, are pulverized, checking the weight is packaged to be calcium carbonate product (12);
Step G, the filtrate that suction filtration in the step e is obtained successively obtain sodium-chlor (14) and ammonia chloride crystal (15) with underpressure distillation device (13) underpressure distillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010169004 CN101823743A (en) | 2010-04-30 | 2010-04-30 | Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010169004 CN101823743A (en) | 2010-04-30 | 2010-04-30 | Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101823743A true CN101823743A (en) | 2010-09-08 |
Family
ID=42687943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010169004 Pending CN101823743A (en) | 2010-04-30 | 2010-04-30 | Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101823743A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589863A (en) * | 2019-09-18 | 2019-12-20 | 西部矿业集团有限公司 | Method for rapidly preparing high-purity micro-nano-scale porous metastable vaterite calcium carbonate from ammonia distillation waste liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941860A (en) * | 1956-07-10 | 1960-06-21 | Diamond Alkali Co | Method of producing finely divided caco3 |
| CN1285312A (en) * | 1999-08-22 | 2001-02-28 | 李怀然 | novel process for preparing fodder grade calcium hydrophosphate and by-product calcium carbonate and ammonium chloride by hydrochloric acid method |
| WO2007061073A1 (en) * | 2005-11-25 | 2007-05-31 | New Lime Kenkyusha Co., Inc. | Crossed-disk-, hamburger- or disk-shaped vaterite type calcium carbonate and process for producing the same |
-
2010
- 2010-04-30 CN CN 201010169004 patent/CN101823743A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941860A (en) * | 1956-07-10 | 1960-06-21 | Diamond Alkali Co | Method of producing finely divided caco3 |
| CN1285312A (en) * | 1999-08-22 | 2001-02-28 | 李怀然 | novel process for preparing fodder grade calcium hydrophosphate and by-product calcium carbonate and ammonium chloride by hydrochloric acid method |
| WO2007061073A1 (en) * | 2005-11-25 | 2007-05-31 | New Lime Kenkyusha Co., Inc. | Crossed-disk-, hamburger- or disk-shaped vaterite type calcium carbonate and process for producing the same |
Non-Patent Citations (2)
| Title |
|---|
| 《化工矿物与加工》 20071231 庄斌等 由氯化钙制备纳米碳酸钙研究 第26-28页 1 , 第2期 2 * |
| 《化工科技》 20001231 李国庭等 氯化钙废液制备高纯碳酸钙副产工业氯化铵新工艺 第46-48页 1 第8卷, 第6期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589863A (en) * | 2019-09-18 | 2019-12-20 | 西部矿业集团有限公司 | Method for rapidly preparing high-purity micro-nano-scale porous metastable vaterite calcium carbonate from ammonia distillation waste liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107089675B (en) | A kind of method for the distilled ammonia wastewater recycling that ammonia-soda process soda ash is discharged | |
| CN101654611A (en) | Method for manufacturing snowmelt agent by using shells | |
| CN112125537B (en) | Industrial preparation technology of calcium hydroxide | |
| CN108211759A (en) | The processing method of the salt slurry waste generated in chlorine industry and its application | |
| CN101475328A (en) | Gypsum rotating crystal excitant and use for producing construction gypsum from marine gypsum | |
| CN100551847C (en) | Processing, utilization and the compound method thereof of aluminum fluoride industry fluoride waste | |
| CN101830584A (en) | Method for processing and forming distilled waste liquid of calcined soda with hydrochloric acid | |
| CN100518893C (en) | Method for purifying vanadium-contained stone coal sodium calcinating smoke | |
| CN112520761A (en) | System and method for high-efficiency recycling of flue gas desulfurization by magnesium method | |
| CN103007734B (en) | Application of sugar-mill lime sludge in wet flue gas desulfurization | |
| CN101823745A (en) | Method for producing super-fine light-weighted calcium carbonate, ammonium chloride and carbon powder with waste associated alkali solution and acetylene sludge | |
| CN104147917B (en) | Fume desulphurization method | |
| CN101823743A (en) | Method for co-production of sodium carbonate and ammonium chloride in preparation of calcium carbonate by waste soda ash solution | |
| CN102030353A (en) | Method for preparing gypsum and simultaneously producing sodium sulfate and hydrochloric acid by distilled ammonia waste liquid of sodium carbonate | |
| CN101823757A (en) | Method for preparing calcium sulphate dehydrate co-produced sodium chloride with soda distillery waste | |
| CN103551027B (en) | With the sulphur dioxide absorbent that lime-flue gas method secondary salt slurry is raw material | |
| CN101823747B (en) | Method for producing precipitated calcium carbonate and white carbon black and coproducing sodium chloride and powdered carbon | |
| CN101838005A (en) | Method for producing sodium chloride and carbon powder and co-producing superfine light calcium carbonate and white carbon black | |
| CN101823746B (en) | Method for producing fine precipitated calcium carbonate and white carbon black coproduction sodium chloride and powdered carbon | |
| CN101885504A (en) | Method for producing low-concentration liquid sodium hydroxide and co-producing calcium carbonate by using carbide slag | |
| CN102167384A (en) | Method for preparing precipitated barium sulfate coproduced with hydrochloric acid by using barium mud | |
| CN101830493A (en) | Method for processing waste salt slurry of calcined soda with sodium carbonate and sodium sulfate | |
| CN101823744B (en) | Method for producing light-weighted calcium carbonate, ammonium chloride and carbon powder with waste associated alkali solution and acetylene sludge | |
| CN102001687A (en) | Method for preparing calcium chloride with co-produced sodium chloride and gypsum by using sodium carbonate distillation waste liquor | |
| CN102070173A (en) | Method for preparing anhydrous calcium sulfate to co-produce industrial hydrochloric acid by using pure alkali distilled waste liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100908 |