CN105271342A - Method for preparing alum by utilization of activated clay waste acid mother solution - Google Patents
Method for preparing alum by utilization of activated clay waste acid mother solution Download PDFInfo
- Publication number
- CN105271342A CN105271342A CN201510082725.4A CN201510082725A CN105271342A CN 105271342 A CN105271342 A CN 105271342A CN 201510082725 A CN201510082725 A CN 201510082725A CN 105271342 A CN105271342 A CN 105271342A
- Authority
- CN
- China
- Prior art keywords
- alum
- mother liquor
- spent acid
- acid mother
- atlapulgite
- 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
Abstract
The invention discloses a method for preparing alum by utilization of activated clay waste acid mother solution, and belongs to the waste water processing and inorganic salt preparation technology fields. By utilization of multiple cycles of an activated clay waste acid mother solution and bentonite, dissolved aluminum sulfate reaches a saturation state, then a reaction with ammonium sulfate (potassium sulfate or sodium sulfate) is carried out, and alum with a purity of more than 99.2% is prepared after crystallization for two times. The aluminum element in the activated clay production waste water mother solution is utilized comprehensively, waste water and obtained gypsum reach industrial application requirements, and the foundation is laid for environmental protection and emission reduction of the next production link. In addition, the cost for preparing alum can be lowered and the production cycle can be shortened.
Description
[technical field]
The present invention relates to wastewater treatment and inorganic salt preparing technical field, be specifically related to a kind of method utilizing atlapulgite spent acid mother liquor to prepare alum.
[background technology]
Atlapulgite is mainly used in the decolorizing and refining of mineral oil, vegetables oil and animal grease, is a kind of important petrochemical complex and daily-use chemical industry raw material.Atlapulgite take wilkinite as raw material, and the main wet process acid metallization processes that adopts processes.Its production process comprises: wilkinite aquation, add sulfuric acid activated, washing, dry, pulverize.Because its product acid content is large, need acid content just can be made to be less than 0.2% through repeatedly washing, to reach the requirement of HG/T2569-94 product standard.Different according to method, the wastewater flow rate that water washing process produces has different, but the wastewater flow rate producing the generation of 1t atlapulgite is generally no less than 30-40t.Tai-Ace S 150 mainly containing the generation of wilkinite acidification reaction in this waste water and unreacted sulfuric acid etc., if directly discharge, not only waste a large amount of resources, and can cause serious pollution to environment.
In recent years, for activated clay production waste improvement and recycle and propose certain methods, as limestone vegetation method, carbide slag neutralisation, return acid activation method, and decompose china clay with process industry water conditioner Tai-Ace S 150 with it, dissolve iron filings and manufacture green vitriol etc.These methods, the governing problem solving activated clay production waste preferably had, as limestone vegetation method can make the acidity in waste water be neutralized by adding lime, make sulfate ion, aluminum ion and iron ion etc. form the precipitations such as calcium sulfate, aluminium hydroxide, ironic hydroxide and remove, but these throw outs are become new solid waste because not utilizing; The recycling problem solving resource in activated clay production waste preferably had, be exactly utilize the sulfuric acid in waste water to decompose china clay as decomposed china clay with it with the method for process industry water conditioner Tai-Ace S 150, aluminium in china clay is leached solution, Tai-Ace S 150 is obtained again through purification and impurity removal, evaporative crystallization, separation drying, crushing packing, although this method efficiently utilizes the resource such as sulfuric acid, Tai-Ace S 150 in activated clay production waste, but because the impurity such as iron ion can affect the quality of product Tai-Ace S 150, thus must be removed through purification and impurity removal process.Normal employing activated manganese dioxide method deironing at present, needs expensive manganese salt, causes processing cost higher.
Alum generally comprises: tschermigite (AlNH
4(SO
4)
212H
2o), potassium alum (AlK (SO
4)
212H
2and sodium alum (AlNa (SO O)
4)
212H
2o).
Tschermigite is mainly used in water purification, the aftertreatment of plating, paper industry, the process of tanning and fur, the production of aluminum oxide and corundum, and printing and dyeing industry is used as mordant, is pharmaceutically used as astringent matter, diuretic(s), emetic and cathartic, foodstuff additive etc.The current main production process of this product obtains Tai-Ace S 150 with vitriolization bauxite, then reacts with ammonium sulfate, then through purification, evaporation, crystallisation by cooling, filtration, drying and obtaining.
Potassium alum is mainly used as the hardening agent of film and sensitive paper, water purification settling agent, medical astringent matter and hemostatic agent, printing and dyeing mordant, saleratus raw material, papermaking cementing agent, and tanning agent, produces the raw material of high purity aluminium oxide and other aluminium salt, rubber pange agent, foodstuff additive etc.The current main production process of this product obtains Tai-Ace S 150 with vitriolization bauxite, then reacts with potassium sulfate, then through purification, evaporation, crystallisation by cooling, filtration, drying and obtaining.
Sodium alum chemical name aluminium sodium sulfate is white particulate or powdery.To meet generation carbonic acid gas with sodium bicarbonate, so be commonly used for foodstuff additive saleratus, textile industry be used as mordant, water-resisting agent, can be used for pottery, tanning, papermaking, match, ink in addition, purify waste water, the industry such as refined sugar.The current main production process of this product obtains Tai-Ace S 150 with vitriolization bauxite, then reacts with sodium sulfate, then through purification, evaporation, crystallisation by cooling, filtration, drying and obtaining.
Patent " reclaims the method (patent No.: ZL200910185137.8) producing alum " from activated clay production waste, disclose the sulfuric acid utilized in activated clay production waste, Tai-Ace S 150, react with aluminium hydroxide and strong aqua (potassium hydroxide), filter, evaporate, thick alum, then obtain through purification and impurity removal the alum finished product that purity is greater than 99%.This invention solves Problems existing in the improvement of activated clay production waste and recoverying and utilizing method, has recycled alum, but the method also also exists shortcomings such as production cost is high, the production cycle is long.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of method utilizing atlapulgite spent acid mother liquor to prepare alum, recycles, and produce the problems such as alum cost is high, the cycle is long to solve activated clay production waste process and active substance in prior art.The present invention makes the aluminium element in activated clay production waste mother liquor be fully utilized, also the gypsum of waste water neutralize gained is made to reach the requirement of industrial application, for next production link environmental protection, reduce discharging and fix basis, simultaneously the present invention can reduce the cost preparing alum, shortens the production cycle.
For solving above technical problem, the present invention by the following technical solutions:
Utilize atlapulgite spent acid mother liquor to prepare a method for alum, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the Tai-Ace S 150 in wilkinite is made to be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 75-85 DEG C, and pH value controls at 2.5-4, adds ammonium sulfate or potassium sulfate, then or sodium sulfate reaction generate alum;
S3: the alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid crystallisation by cooling, then press filtration obtains the thick alum of filter cake;
S4: dropped in water by thick alum obtained for step S3, heats to 75-85 DEG C and stirring removes impurity, gained clear liquid crystallisation by cooling again after thick alum is dissolved completely while hot again, and then press filtration obtains alum;
S5: the alum that step S4 is obtained is put in whizzer and removes moisture, namely obtained pure alum.
Preferably, the number of times recycling mother liquor in step S1 is 3-4, and the temperature controlling to dissolve is 95-100 DEG C.
Preferably, in step S2, atlapulgite spent acid mother liquor temperature controls at 78-82 DEG C, and pH value controls at 3-3.5.
Preferably, the method that in step S2, pH value controls is: add bicarbonate of ammonia when pH value is less than 2.5; The atlapulgite spent acid mother liquor that pH value is less than 2.5 is added when pH value is greater than 4.
Preferably, in step S2, when adding ammonium sulfate, the amount of described ammonium sulfate is for making NH in alum
4 +: Al
3+: SO
4 2-molar concentration rate be 1.02-1.12:1:2.02-2.13; When adding potassium sulfate, the amount of described potassium sulfate is for making K in alum
+: Al
3+: SO
4 2-molar concentration rate be 1.02-1.12:1:2.02-2.13; When adding sodium sulfate, the amount of described sodium sulfate is for making Na in alum
+: Al
3+: SO
4 2--molar concentration rate be 1.02-1.12:1:2.02-2.13.
Preferably, in step S3 and S4, the temperature of clear liquid crystallisation by cooling is less than 20 DEG C.
Preferably, the pressure of press filtration in step S3 and S4 is 0.7-1.0MPa, and it is 45%-50% that alum is depressed into water ratio.
Preferably, in step S4, amount of water equals the weight of thick alum.
Preferably, in step S5, the rotating speed of whizzer is 1500-3000r/min.
The present invention has following beneficial effect:
(1) compared with the alum produced by alum and the prior art of industrial raw material production, production cost of the present invention is lower;
(2), compared with the cycle of producing alum with prior art, the production cycle of the present invention is shorter;
(3) not only purity is high for the alum prepared of the present invention, reaches more than 99.2%, and steady quality;
(4) the present invention can aluminium element in effective recycling atlapulgite waste water, and does not increase new element in waste liquor, reaches the object of comprehensive utilization, energy-saving and emission-reduction;
(5) aluminium element obtain comprehensive utilization while, the gypsum of atlapulgite waste water neutralize gained also reaches the requirement of industrial application, for next production link environmental protection, reduce discharging fix basis.
[accompanying drawing explanation]
Fig. 1 prepares alum process flow sheet for utilizing atlapulgite spent acid mother liquor.
[embodiment]
Embodiment 1
Utilize atlapulgite spent acid mother liquor to prepare a method for tschermigite, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 95 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 3 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 75 DEG C, adds bicarbonate of ammonia to above-mentioned mother liquor and makes pH value be 2.5, according to the content of Tai-Ace S 150 in solution, add ammonium sulfate and make NH
4 +: Al
3+: SO
4 2-molar concentration rate be 1.02:1:2.02;
S3: the tschermigite solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 20 DEG C of crystallizations, and then under pressure is 0.7MPa, tschermigite being depressed into water ratio is 45%, obtains the thick tschermigite of filter cake;
S4: in the water of the weight such as the thick tschermigite input that step S3 is obtained, heat after also stirring makes thick tschermigite dissolve completely to 75 DEG C and again remove impurity while hot, gained clear liquid is cooled to 20 DEG C of crystallizations again, then under pressure is 0.7MPa, being depressed into product water ratio is 45%, obtains tschermigite;
S5: it is remove moisture in the whizzer of 1500r/min that the tschermigite obtained by step S4 is put into rotating speed, namely obtained pure tschermigite.
Embodiment 2
Utilize atlapulgite spent acid mother liquor to prepare a method for potassium alum, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 100 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 4 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 85 DEG C, adds to above-mentioned mother liquor the atlapulgite spent acid mother liquor that pH value is 2, makes pH value be 4, add potassium sulfate and make K
+: Al
3+: SO
4 2-molar concentration rate be 1.04:1:2.05;
S3: the potassium alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 18 DEG C of crystallizations, and then under pressure is 1.0MPa, potassium alum being depressed into water ratio is 50%, obtains the thick potassium alum of filter cake;
S4: in the water of the weight such as the thick potassium alum input that step S3 is obtained, heat after also stirring makes thick potassium alum dissolve completely to 85 DEG C and again remove impurity while hot, gained clear liquid is cooled to 18 DEG C of crystallizations again, then under pressure is 1.0MPa, being depressed into product water ratio is 50%, obtains potassium alum;
S5: it is remove moisture in the whizzer of 3000r/min that the potassium alum obtained by step S4 is put into rotating speed, namely obtained pure potassium alum.
Embodiment 3
Utilize atlapulgite spent acid mother liquor to prepare a method for sodium alum, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 97 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 3 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls, at 80 DEG C, to add bicarbonate of ammonia in above-mentioned mother liquor, makes pH value be 3.2, adds sodium sulfate and make Na
+: Al
3+: SO
4 2-molar concentration rate be 1.07:1:2.06;
S3: the sodium alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 16 DEG C of crystallizations, and then under pressure is 0.85MPa, sodium alum being depressed into water ratio is 47.5%, obtains the thick sodium alum of filter cake;
S4: in the water of the weight such as the thick sodium alum input that step S3 is obtained, heat after also stirring makes thick sodium alum dissolve completely to 80 DEG C and again remove impurity while hot, gained clear liquid is cooled to 16 DEG C of crystallizations again, then under pressure is 0.85MPa, being depressed into product water ratio is 47.5%, obtains sodium alum;
S5: it is remove moisture in the whizzer of 2500r/min that the sodium alum obtained by step S4 is put into rotating speed, namely obtained pure sodium alum.
Embodiment 4
Utilize atlapulgite spent acid mother liquor to prepare a method for tschermigite, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 98 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 4 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 78 DEG C, adds to above-mentioned mother liquor the atlapulgite spent acid mother liquor that pH value is 1.8, makes pH value be 3.5, adds ammonium sulfate reaction generation ammonium and makes NH
4 +: Al
3+: SO
4 2-molar concentration rate be 1.08:1:2.08;
S3: the tschermigite solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 20 DEG C of crystallizations, and then under pressure is 0.8MPa, tschermigite being depressed into water ratio is 48%, obtains the thick tschermigite of filter cake;
S4: in the water of the weight such as the thick tschermigite input that step S3 is obtained, heat after also stirring makes thick tschermigite dissolve completely to 78 DEG C and again remove impurity while hot, gained clear liquid is cooled to 20 DEG C of crystallizations again, then under pressure is 0.8MPa, being depressed into product water ratio is 48%, obtains tschermigite;
S5: it is remove moisture in the whizzer of 2000r/min that the tschermigite obtained by step S4 is put into rotating speed, namely obtained pure tschermigite.
Embodiment 5
Utilize atlapulgite spent acid mother liquor to prepare a method for potassium alum, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 96 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 3 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 82 DEG C, adds bicarbonate of ammonia to above-mentioned mother liquor, makes pH value be 3, add potassium sulfate and make K
+: Al
3+: SO
4 2-molar concentration rate be 1.1:1:2.1;
S3: the potassium alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 20 DEG C of crystallizations, and then under pressure is 0.9MPa, potassium alum being depressed into water ratio is 46%, obtains the thick potassium alum of filter cake;
S4: in the water of the weight such as the thick potassium alum input that step S3 is obtained, heat after also stirring makes thick potassium alum dissolve completely to 82 DEG C and again remove impurity while hot, gained clear liquid is cooled to 20 DEG C of crystallizations again, then under pressure is 0.9MPa, being depressed into product water ratio is 46%, obtains potassium alum;
S5: it is remove moisture in the whizzer of 2500r/min that the potassium alum obtained by step S4 is put into rotating speed, namely obtained pure potassium alum.
Embodiment 6
Utilize atlapulgite spent acid mother liquor to prepare a method for sodium alum, comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the temperature controlling solution is 97 DEG C makes the Tai-Ace S 150 in wilkinite be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, according to said method circulate 4 times, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 79 DEG C, add to above-mentioned mother liquor the atlapulgite spent acid mother liquor that pH value is 1, make pH value be 3.5, the sodium sulfate added makes Na
+: Al
3+: SO
4 2-molar concentration rate be 1.12:1:2.13;
S3: the sodium alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid is cooled to 18 DEG C of crystallizations, and then under pressure is 0.8MPa, sodium alum being depressed into water ratio is 50%, obtains the thick sodium alum of filter cake;
S4: in the water of the weight such as the thick sodium alum input that step S3 is obtained, heat after also stirring makes thick sodium alum dissolve completely to 80 DEG C and again remove impurity while hot, gained clear liquid is cooled to 20 DEG C of crystallizations again, then under pressure is 0.8MPa, being depressed into product water ratio is 50%, obtains sodium alum;
S5: it is remove moisture in the whizzer of 3000r/min that the sodium alum obtained by step S4 is put into rotating speed, namely obtained pure sodium alum.
In embodiment, alum purity check the results are shown in following table.
As seen from the above table, the alum purity that the present invention utilizes atlapulgite spent acid mother liquor to prepare the method gained of alum reaches more than 99.2%, and not only purity is high and stable for the alum that this technique is obtained as seen.
The foregoing is only embodiments of the invention, not in order to limit the present invention, all do in the spirit and principles in the present invention any amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. utilize atlapulgite spent acid mother liquor to prepare a method for alum, it is characterized in that: comprise the following steps:
S1: adopt atlapulgite spent acid mother liquor to mix with wilkinite, the Tai-Ace S 150 in wilkinite is made to be dissolved in spent acid mother liquor, again the atlapulgite spent acid Recycling Mother Solution increasing Tai-Ace S 150 concentration is mixed with the wilkinite newly added, until the Tai-Ace S 150 being dissolved in spent acid mother liquor reaches capacity;
S2: the spent acid mother liquor temperature that the Tai-Ace S 150 obtained by step S1 reaches capacity controls at 75-85 DEG C, and pH value controls at 2.5-4, adds ammonium sulfate or potassium sulfate, then or sodium sulfate reaction generate alum;
S3: the alum solution filtered while hot removing impurity that step S2 reaction is generated, gained clear liquid crystallisation by cooling, then press filtration obtains the thick alum of filter cake;
S4: dropped in water by thick alum obtained for step S3, heats to 75-85 DEG C and stirring removes impurity, gained clear liquid crystallisation by cooling again after thick alum is dissolved completely while hot again, and then press filtration obtains alum;
S5: the alum that step S4 is obtained is put in whizzer and removes moisture, namely obtained pure alum.
2. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, is characterized in that, the number of times recycling mother liquor in step S1 is 3-4, and the temperature controlling to dissolve Tai-Ace S 150 is 95-100 DEG C.
3. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, is characterized in that, in step S2, atlapulgite spent acid mother liquor temperature controls at 78-82 DEG C, and pH value controls at 3-3.5.
4. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, is characterized in that, the method that in step S2, pH value controls is: add bicarbonate of ammonia when pH value is less than 2.5; The atlapulgite spent acid mother liquor that pH value is less than 2.5 is added when pH value is greater than 4.
5. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, is characterized in that, in step S2, when adding ammonium sulfate, the amount of described ammonium sulfate is for making NH in alum
4 +: Al
3+: SO
4 2-molar concentration rate be 1.02-1.12:1:2.02-2.13; When adding potassium sulfate, the amount of described potassium sulfate is for making K in alum
+: Al
3+: SO
4 2-molar concentration rate be 1.02-1.12:1:2.02-2.13; When adding sodium sulfate, the amount of described sodium sulfate is for making Na in alum
+: Al
3+: SO
4 2--molar concentration rate be 1.02-1.12:1:2.02-2.13.
6. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, it is characterized in that, in step S3 and S4, the temperature of clear liquid crystallisation by cooling is less than 20 DEG C.
7. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, is characterized in that, the pressure of press filtration in step S3 and S4 is 0.7-1.0MPa, and it is 45%-50% that alum is depressed into water ratio.
8. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, it is characterized in that, in step S4, amount of water equals the weight of thick alum.
9. the method utilizing atlapulgite spent acid mother liquor to prepare alum according to claim 1, it is characterized in that, in step S5, the rotating speed of whizzer is 1500-3000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082725.4A CN105271342A (en) | 2015-02-15 | 2015-02-15 | Method for preparing alum by utilization of activated clay waste acid mother solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082725.4A CN105271342A (en) | 2015-02-15 | 2015-02-15 | Method for preparing alum by utilization of activated clay waste acid mother solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105271342A true CN105271342A (en) | 2016-01-27 |
Family
ID=55141281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510082725.4A Pending CN105271342A (en) | 2015-02-15 | 2015-02-15 | Method for preparing alum by utilization of activated clay waste acid mother solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105271342A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986366A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares ammonia-alum |
| CN106986364A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of activated clay production waste coproduction alum, the method for gypsum |
| CN106986367A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares soda alum |
| CN106986365A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares potassium alum |
| CN107117638A (en) * | 2017-04-13 | 2017-09-01 | 广西隆安瑞丰工贸有限公司 | A kind of method that activated clay production spent acid prepares alum |
-
2015
- 2015-02-15 CN CN201510082725.4A patent/CN105271342A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986366A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares ammonia-alum |
| CN106986364A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of activated clay production waste coproduction alum, the method for gypsum |
| CN106986367A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares soda alum |
| CN106986365A (en) * | 2017-04-13 | 2017-07-28 | 广西隆安瑞丰工贸有限公司 | A kind of method that atlapulgite spent acid mother liquor prepares potassium alum |
| CN107117638A (en) * | 2017-04-13 | 2017-09-01 | 广西隆安瑞丰工贸有限公司 | A kind of method that activated clay production spent acid prepares alum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105293797A (en) | Method for co-production of aluminum potassium sulfate and gypsum through activated clay production mother liquid | |
| CN101671048B (en) | Method for recovering and preparing alum from activated clay production waste liquid | |
| CN105129830A (en) | Method for preparation of potassium alum from activated clay production mother liquor | |
| CN104495899B (en) | A kind of carbide slag and flyash work in coordination with the method for recycling | |
| CN105271342A (en) | Method for preparing alum by utilization of activated clay waste acid mother solution | |
| CN103241754B (en) | Production method of high-purity aluminum oxide | |
| CN103553138A (en) | Comprehensive utilization method for separating, concentrating and purifying manganese sulfate, magnesium sulfate and calcium sulfate in high-salt waste water | |
| CN102703905B (en) | Process for comprehensively utilizing waste tin-stripping solution | |
| CN102491379A (en) | Method for preparing high-purity magnesium oxide with high boron salt lake brine | |
| CN106082516B (en) | Salt separation crystallization process and device | |
| CN102910676B (en) | Preparation method of high-purity vanadium pentoxide | |
| CN101885498A (en) | Method for preparing high-purity magnesium sulfate | |
| CN105293553A (en) | Method for preparing tschermigite by utilizing activated clay production wastewater | |
| CN107511129A (en) | Silicon is reclaimed in a kind of red mud and prepares the method that composite synchronously removes nitrogen phosphorus in water removal | |
| CN105293796A (en) | Method for co-production of sodalumite and gypsum through activated clay production mother liquid | |
| CN113336258A (en) | Method for preparing active copper oxide from sponge copper | |
| CN105502456A (en) | Method for recycling and preparing aluminum ammonium sulfate from activated clay production wastewater | |
| CN103601228A (en) | Method for preparation of chemical raw materials by use of fly ash as raw material | |
| CN105271341A (en) | Method for preparing potassium alum by utilization of activated clay production waste water | |
| CN105384184A (en) | Method for preparing alum from mother solution produced by activated clay | |
| CN101538058B (en) | Low-temperature low-pressure hydro chemical method for recovering aluminum oxide and sodium oxide from red mud | |
| CN103193277A (en) | Method for preparing iron oxide red pigment through copperas | |
| CN108128788A (en) | A kind of method that sodium sulphate is recycled in the waste water from desulphurization denitration | |
| CN216808418U (en) | Sodium sulfate waste water resourceful treatment system | |
| CN106986364A (en) | A kind of activated clay production waste coproduction alum, the method for gypsum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |
|
| RJ01 | Rejection of invention patent application after publication |