CN1038997A - Produce the method for hydrochloric acid and soda ash with ammonium chloride - Google Patents
Produce the method for hydrochloric acid and soda ash with ammonium chloride Download PDFInfo
- Publication number
- CN1038997A CN1038997A CN 89105502 CN89105502A CN1038997A CN 1038997 A CN1038997 A CN 1038997A CN 89105502 CN89105502 CN 89105502 CN 89105502 A CN89105502 A CN 89105502A CN 1038997 A CN1038997 A CN 1038997A
- Authority
- CN
- China
- Prior art keywords
- ammonium chloride
- ammonia
- hydrochloric acid
- sulfuric acid
- temperature
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/05—Preparation from ammonium chloride
- C01B7/055—Preparation of hydrogen chloride from ammonium chloride
Abstract
Add a small amount of initiator with aqueous sulfuric acid and make ammonium chloride resolve into hydrogenchloride and ammonia fully, the hydrogenchloride water absorbs makes the hydrochloric acid that concentration is 25-33%.The rate of recovery is up to more than 95%.Ammonia absorbs with salt solution and is used to make alkali, and the rate of recovery is up to more than 95%.
Description
Produce a large amount of ammonium chlorides in the basic industry, and ammonium chloride not the high-quality chemical fertilizer, so the ammonia of it being handled to reclaim wherein is used for making alkali production usually.Present most factory still uses milk of lime (Ca(OH) 2) handle, generate the calcium chloride discharging, with the passing of time be piled into the mountain, be commonly called as " white sea ", not only waste resource, also contaminate environment.The new recovery method of many country's researchs.
Have document to carry, the country that has uses lime carbonate and aqueous sodium persulfate solution and ammonium chloride reaction for reclaiming ammonia, make ammonia regeneration under boiling temperature, but process reaction speed is slow, NH
4The CL rate of decomposition is low, is generally 50-80%, and ammonia recovery also has only 50-60%, deficiency in economic performance.Do not find better recovery method as yet from document.
The present invention uses aqueous sulfuric acid in the presence of initiator, is heated to certain temperature and makes ammonium chloride decompose generation hydrogenchloride and ammonia fully.The hydrogenchloride water absorbs and generates hydrochloric acid, and ammonia absorbs the generation ammoniated brine with salt solution and sends to system alkali.Concrete grammar as: with concentration is the 18-75%(quality) sulfuric acid and the initiator that is made into by SODIUMNITRATE, manganous sulfate and ammonium sulfate mix, ammonium chloride is added in this solution stir then.
As three kinds of materials of initiator, its consumption is the thousandth of ammonium chloride add-on, and the ammonium chloride add-on determines according to sulfuric acid concentration and consumption, and the method for specifically determining is that to calculate by the mol ratio of two materials be NH
4CL: H
2SO
4=1: 1-4.
Mixed liquor under agitation being heated up, just begin to have hydrogenchloride to overflow when temperature reaches 45 ℃ of left and right sides, is 5-10 ℃ clear water absorption with this gas temperature, makes the technical hydrochloric acid that concentration is 25-33%; Temperature rises to 98 ℃ of left and right sides hydrogenchloride and all overflows, and can continue to heat up after checking true no hydrogenchloride to make the solution boiling, and temperature just has ammonia to overflow about 104 ℃ of this moments greatly, absorbs it with salt solution, makes ammoniated brine and sends to system alkali.Ammonia was all overflowed when temperature rose to 118 ℃ of left and right sides.Clearly not having the i.e. reaction of ammonia effusion through cermet of inspection finishes.Solution is cooled to about 30 ℃, add chlorination more again by carrying out said process.
Aqueous sulfuric acid and initiator do not change in fact in reaction process, have only some impurity and silt particle wherein residual, thus can use repeatedly, treat impurity silt particle accumulation too much or the acid solution amount can clear up and add when significantly reducing.Embodiment 1: with 689 gram 25% sulfuric acid with as the NaNo of initiator
3, MnSO
4(NH
4) each 0.07 gram of SO4 mixes in the container of the belt stirrer of packing into, adds ammonium chloride 68.9 grams, makes it mix and all dissolvings, is heated to 45 ℃ then and begins to have HCL to overflow, and its importing is equipped with in the container of clear water to absorb, and just generates hydrochloric acid.The clear water temperature is 5-10 ℃, reaches 25-30% up to brine concentration, and hydrogenchloride has been arranged about 98 ℃.Continue heating up then begins to have ammonia to emit 104 ℃ of left and right sides solution boilings, is that 20-30 ℃ salt solution absorbs and generates ammoniated brine and send to system alkali with temperature, and temperature reaches 118 ℃ of left and right sides ammonias effusions and finishes.
Embodiment 2: squeeze in the reactor of band stirring with 15.6 ton 25% sulfuric acid with as each 1.58 kilograms of mixing of three kinds of materials of initiator, add 1.58 tons of ammonium chlorides then, make its dissolving, be heated to then and begin to have hydrogenchloride to overflow about 45 ℃, with roots blower gas is got to that temperature is housed is that 5-10 ℃ clear water absorbs in the still, make the hydrochloric acid that concentration is 25-30%, temperature reaches 98 ℃ of left and right sides HCL and has arranged.Close HCL this moment and absorb still and open and inhale ammonia still valve, continue to heat up at 104 ℃ of left and right sides solution boiling beginning to discharge ammonias, with roots blower ammonia is got to and inhaled the ammonia still and absorb it with giving the salt solution for preparing earlier, ammonia excretion finishes in the time of 118 ℃ greatly.Brine temp is 20-30 ℃.The ammoniated brine for preparing is sent to and is absorbed CO
2To produce heavy alkali.
Claims (3)
1, a kind ofly produce the method for hydrochloric acid and soda ash with ammonium chloride, it is characterized in that adding initiator with aqueous sulfuric acid makes ammonium chloride decompose fully at a certain temperature, degradation production is recycled.
2,, it is characterized by its concentration of aqueous sulfuric acid in the 18-75%(quality according to the said method of claim 1) between, initiator is by SODIUMNITRATE (NaNO
3), manganous sulfate (MnSO
4) and ammonium sulfate ((NH
4) 2SO
4), formulated, the consumption of these three kinds of materials is 1/4th of ammonium chloride add-on, the mol ratio of the ammonium chloride of adding and sulfuric acid consumption is NH
4CL: H
2SO
4=1: 1-4, said temperature is 45 °-118 ℃ scope.
3, according to the said method of claim 2, it is characterized by temperature and divide two stages, 45-98 ℃ is the hydrogenchloride effusion stage, 104-118 ℃ is that ammonia is overflowed the stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105502 CN1011582B (en) | 1989-08-15 | 1989-08-15 | Preparation of hydrochloric acid and sodium carbonate by using ammonium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105502 CN1011582B (en) | 1989-08-15 | 1989-08-15 | Preparation of hydrochloric acid and sodium carbonate by using ammonium chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1038997A true CN1038997A (en) | 1990-01-24 |
| CN1011582B CN1011582B (en) | 1991-02-13 |
Family
ID=4856234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105502 Expired CN1011582B (en) | 1989-08-15 | 1989-08-15 | Preparation of hydrochloric acid and sodium carbonate by using ammonium chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011582B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944291B (en) * | 2006-10-17 | 2010-12-29 | 自贡鸿鹤化工股份有限公司 | Method for teating heavy alkali filter liquid in synthesizing alkali producing method |
| CN102992268A (en) * | 2012-10-31 | 2013-03-27 | 四川大学 | Technology for producing hydrogen chloride by using calcium chloride and sulfuric acid |
| CN106882767A (en) * | 2017-01-16 | 2017-06-23 | 淮阴师范学院 | A kind of new chloride and strong sulfuric acid response prepared for hydrogen chloride from rate controlling with from stirred reactor and method |
| CN112499587A (en) * | 2020-11-30 | 2021-03-16 | 洪湖市一泰科技有限公司 | Synergistic treatment method for by-products generated in production process of methyldichlorophosphine and diethyl methylphosphonite |
-
1989
- 1989-08-15 CN CN 89105502 patent/CN1011582B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944291B (en) * | 2006-10-17 | 2010-12-29 | 自贡鸿鹤化工股份有限公司 | Method for teating heavy alkali filter liquid in synthesizing alkali producing method |
| CN102992268A (en) * | 2012-10-31 | 2013-03-27 | 四川大学 | Technology for producing hydrogen chloride by using calcium chloride and sulfuric acid |
| CN106882767A (en) * | 2017-01-16 | 2017-06-23 | 淮阴师范学院 | A kind of new chloride and strong sulfuric acid response prepared for hydrogen chloride from rate controlling with from stirred reactor and method |
| CN106882767B (en) * | 2017-01-16 | 2019-03-12 | 淮阴师范学院 | A kind of novel chloride and strong sulfuric acid response for hydrogen chloride preparation from rate controlling with from stirred reactor and method |
| CN112499587A (en) * | 2020-11-30 | 2021-03-16 | 洪湖市一泰科技有限公司 | Synergistic treatment method for by-products generated in production process of methyldichlorophosphine and diethyl methylphosphonite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1011582B (en) | 1991-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104211099B (en) | Resource recycling method of industrial phosphogypsum waste residues | |
| CN105271310B (en) | Chlorination-process titanium-white high-salt wastewater comprehensive utilization method | |
| US20200239325A1 (en) | Systems and Methods to Treat Flue Gas Desulfurization Waste to Produce Ammonium Sulfate and Calcium Carbonate Products | |
| CN101830859B (en) | Production method of isocyanuric acid | |
| CN106277005B (en) | A kind of method that ice crystal, calcium carbonate and sodium sulphate are reclaimed in the resource from calcium fluoride sludge | |
| CN104692436B (en) | It is a kind of by coal ash for manufacturing for cryolite method | |
| CN106365189B (en) | A kind of method of comprehensive utilization of white residue soil | |
| CN102275947A (en) | Method for preparing potassium fluoborate by using mixed acid containing hydrogen fluoride | |
| CN101134590A (en) | Method for producing aluminun fluoride with combined production of white carbon black and ammonia sulfate | |
| CN1038997A (en) | Produce the method for hydrochloric acid and soda ash with ammonium chloride | |
| US3549317A (en) | Process for utilizing fluorosilicic acid | |
| CN101323452A (en) | Method for preparing precipitated silica with boron sludge | |
| CN110437169B (en) | Preparation method of sodium dichloroisocyanurate | |
| CN103980214B (en) | The processing method of waste gas waste water in a kind of sym-closene production process | |
| CN106986360A (en) | The method that calcic magnesium carbonate thing ore deposit prepares magnesium hydroxide | |
| CN206720759U (en) | For preparing the device of ice crystal | |
| CN113603127B (en) | Method for concentrated sulfuric acid treatment of calcium chloride wastewater and co-production of chemical gypsum | |
| CN114455612A (en) | Novel process for preparing soda ash byproduct gypsum by using sodium sulfate and carbon dioxide as raw materials | |
| CN105947985B (en) | A kind of chlorine dioxide preparation method of recyclable sodium acid sulfate | |
| CN115353125A (en) | Preparation method of sodium carbonate | |
| CN106995216A (en) | The preparation method and device of ice crystal | |
| CN104310450B (en) | Ammonia process produce produce during cryolite containing ammonia waste treatment method | |
| CN113479985A (en) | Method for transformation deamination of ammonia nitrogen wastewater | |
| CN113912234B (en) | Sewage treatment method for producing titanium dioxide by using chlorination process | |
| CN106629781B (en) | A kind of preparation method of potassium sulfate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 19941104 Decision number of declaring invalidation: 508 |