CN102557078A - Method for reducing aluminum impurity content in primary saline water in ionic membrane caustic soda - Google Patents
Method for reducing aluminum impurity content in primary saline water in ionic membrane caustic soda Download PDFInfo
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- CN102557078A CN102557078A CN2011104551442A CN201110455144A CN102557078A CN 102557078 A CN102557078 A CN 102557078A CN 2011104551442 A CN2011104551442 A CN 2011104551442A CN 201110455144 A CN201110455144 A CN 201110455144A CN 102557078 A CN102557078 A CN 102557078A
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Abstract
The invention relates to a method for reducing aluminum impurity content in primary saline water in ionic membrane caustic soda. In the method, two weak-acid acrylic acid series cation exchange resin towers are added behind the primary saline water and used for processing the saline water before the saline water is fed into a chelating resin tower, so that the content of aluminum ions is reduced to a range required by an operation index of an ionic membrane, and the requirements of normal production are met.
Description
Technical field
The present invention relates to a kind of method that reduces aluminium foreign matter content in the salt solution, especially a kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine.
Background technology
In ion film caustic soda, the existence of aluminium in the salt solution can form double salt with silicon-dioxide, calcium ion and sodium ion, is deposited on the cathode side of film, strengthens the resistance of ionic membrane, causes membrane voltage to raise, and makes the decrease in efficiency of ionic membrane, has increased production cost.
Summary of the invention
The invention provides a kind of method of aluminium foreign matter content in the primary brine that reduces in the ion film caustic soda; Behind primary brine, increase by two acidulous acrylic acid's cation exchange resin towers; Aluminum ion in the primary brine is carried out adsorption treatment; Aluminium composition is reduced in the ionic membrane operating index claimed range, met the requirement of ordinary production.
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 400-600 μ g/L; Open fresh feed pump; Slowly open the valve of spinner-type flowmeter below, the maintenance flow is 10-30L/h, opens the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then; Salt solution through spinner-type flowmeter and accurate filter, gets into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2Kg resin and handle under the effect of pump; Salt brine solution after treatment flows out from the bottom of first resin tower; Get into from second exchange resin tower top adverse current and carry out absorption the tower of filling the 2Kg resin and handle, salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
Wherein the ion exchange resin in two resin towers is acidulous acrylic acid's cation exchange resin, is 111, D111,112, one or both models among the KB-1, all can be in Jinan China star resin ltd or chemical plant, Plain, Cangzhou buy.
The present invention adopts the control of technologies such as two exchange resin couplings and flow, can the aluminium composition in the salt solution be reduced to 30-60 μ g/L after processing, and the amount of handling primary brine is the 300-400L/Kg resin, meets the requirement of ordinary production.
Description of drawings
Fig. 1 is a schema of the present invention.
Brine feed groove 1, pump 2, spinner-type flowmeter 3, accurate filter 4,5, the second exchange resin towers 6 of first exchange resin tower, the salt solution groove 7 that connects material, thief hole 8, tensimeter 9.
Embodiment
Embodiment 1:
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 400 μ g/L; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 10L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2Kg111 Zeo-karb and handle, salt brine solution after treatment flows out from the bottom of first resin tower, gets into from second exchange resin tower top adverse current and carries out absorption the tower of filling the 2KgD111 Zeo-karb and handle; Salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
Can the aluminium composition in the salt solution be reduced to 52 μ g/L after the processing, the amount that can handle primary brine is the 334L/Kg resin.
Embodiment 2:
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 500 μ g/L; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 20L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2Kg112 Zeo-karb and handle, salt brine solution after treatment flows out from the bottom of first resin tower, gets into from second exchange resin tower top adverse current and carries out absorption the tower of filling the 2KgKB-1 Zeo-karb and handle; Salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
The aluminium composition of handling in the salt solution of back is reduced to 31 μ g/L, and the amount of handling primary brine is the 395L/Kg resin.
Embodiment 3:
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 600 μ g/L; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 30L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2KgD111 Zeo-karb and handle, salt brine solution after treatment flows out from the bottom of first resin tower, gets into from second exchange resin tower top adverse current and carries out absorption the tower of filling the 2Kg112 Zeo-karb and handle; Salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; When measuring aluminum ion in the salt solution greater than 60 μ g/L; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
Can the aluminium composition in the salt solution be reduced to 36 μ g/L after the processing, the amount that can handle primary brine is the 380L/Kg resin.
Embodiment 4:
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 520 μ g/L; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 35L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of exchange resin tower then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from exchange resin tower top adverse current and to carry out absorption the tower fill 2Kg KB-1 Zeo-karb and handle, salt brine solution after treatment flows out from the bottom of resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after, the resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
The aluminium composition of handling in the salt solution of back is reduced to 68 μ g/L, and the amount of handling primary brine is the 317L/Kg resin.
Embodiment 5:
A kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition of getting from the primary brine workshop after the processing primary brine, open brine feed bottom land valve at 610 μ g/L; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 8 L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of exchange resin tower then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from exchange resin tower top adverse current and to carry out absorption the tower fill 2Kg 111 Zeo-karbs and handle, salt brine solution after treatment flows out from the bottom of resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after, the resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
The aluminium composition of handling in the salt solution of back is reduced to 76 μ g/L, and the amount of handling primary brine is the 272L/Kg resin.
Can find out that from embodiment embodiment 2 effects are best; Embodiment 1 and 3 takes second place, and embodiment 5,6 is not within this patent processing range, and effect is relatively poor; Therefore the two kinds of resin absorption adopting of this patent and the method for flow technology coupling; Aluminium composition in the primary brine is reduced, and it is more to handle the salt water yield, meets the needs of production.
Claims (3)
1. one kind is reduced in the ion film caustic soda method of aluminium foreign matter content in the primary brine, it is characterized by: fill it up with the brine feed groove aluminium composition after the processing of getting from the primary brine workshop at the primary brine of 400-600 μ g/L, open brine feed bottom land valve; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 10-30L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2Kg resin and handle, salt brine solution after treatment flows out from the bottom of first resin tower, gets into from second exchange resin tower top adverse current and carries out absorption the tower of filling the 2Kg resin and handle; Salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
2. a kind of method of aluminium foreign matter content in the primary brine that reduces in the ion film caustic soda as claimed in claim 1; It is characterized by: the ion exchange resin in two resin towers is acidulous acrylic acid's cation exchange resin, is 111, D111; 112, one or both models among the KB-1.
3. a kind of method of aluminium foreign matter content in the primary brine that reduces in the ion film caustic soda as claimed in claim 1 is characterized by: a kind ofly reduce in the ion film caustic soda method of aluminium foreign matter content in the primary brine, fill it up with the brine feed groove aluminium composition after the processing of getting from the primary brine workshop at the primary brine of 500 μ g/L; Open brine feed bottom land valve; Open fresh feed pump, slowly open the valve of spinner-type flowmeter below, the maintenance flow is 20L/h; Open the accurate filter terminal valve afterwards again; Open the terminal valve of 2 exchange resin towers then, salt solution is under the effect of pump, through spinner-type flowmeter; Accurate filter; Get into from first exchange resin tower top adverse current and to carry out absorption the tower of filling the 2Kg112 Zeo-karb and handle, salt brine solution after treatment flows out from the bottom of first resin tower, gets into from second exchange resin tower top adverse current and carries out absorption the tower of filling the 2KgKB-1 Zeo-karb and handle; Salt brine solution after treatment flows out from the bottom of second resin tower, gets into the salt solution groove that connects material; In treating processes; Timing is from the thief hole sampling analysis of second exchange resin tower bottom; Measure aluminum ion in the salt solution greater than 60 μ g/L after; Resin absorption in the resin tower is carried out the manipulation of regeneration continued to the resin in the resin tower and is handled the aluminum ion in the primary brine near saturated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104551442A CN102557078B (en) | 2011-12-31 | 2011-12-31 | Method for reducing aluminum impurity content in primary saline water in ionic membrane caustic soda |
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| CN2011104551442A CN102557078B (en) | 2011-12-31 | 2011-12-31 | Method for reducing aluminum impurity content in primary saline water in ionic membrane caustic soda |
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| CN102557078A true CN102557078A (en) | 2012-07-11 |
| CN102557078B CN102557078B (en) | 2013-11-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342548A (en) * | 2019-07-30 | 2019-10-18 | 南京纳亿工程技术有限公司 | A kind of method that ion film caustic soda primary purification salt water removes sial deep refining |
| CN110790287A (en) * | 2019-12-10 | 2020-02-14 | 昊华宇航化工有限责任公司 | Method for reducing content of aluminum ions in primary brine produced by ionic membrane caustic soda |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150120A (en) * | 1995-10-31 | 1997-05-21 | 邓天洲 | Process for producing alkali and potassium sulfate from bittern containing sulfate |
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2011
- 2011-12-31 CN CN2011104551442A patent/CN102557078B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150120A (en) * | 1995-10-31 | 1997-05-21 | 邓天洲 | Process for producing alkali and potassium sulfate from bittern containing sulfate |
Non-Patent Citations (1)
| Title |
|---|
| 许大轶等: "离子膜法烧碱工艺改进", 《当代化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342548A (en) * | 2019-07-30 | 2019-10-18 | 南京纳亿工程技术有限公司 | A kind of method that ion film caustic soda primary purification salt water removes sial deep refining |
| CN110342548B (en) * | 2019-07-30 | 2024-01-26 | 南京纳亿工程技术有限公司 | Method for deeply refining brine silicon-aluminum removal through one-time refining of ionic membrane caustic soda |
| CN110790287A (en) * | 2019-12-10 | 2020-02-14 | 昊华宇航化工有限责任公司 | Method for reducing content of aluminum ions in primary brine produced by ionic membrane caustic soda |
| CN110790287B (en) * | 2019-12-10 | 2022-05-17 | 昊华宇航化工有限责任公司 | Method for reducing content of aluminum ions in primary brine produced by ionic membrane caustic soda |
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| CN102557078B (en) | 2013-11-27 |
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Address after: 330300 Yangjialing, Yongxiu County, Jiujiang City, Jiangxi Province Patentee after: JIANGXI BLUESTAR XINGHUO ORGANIC SILICONE Co.,Ltd. Address before: 330319 Spark Industrial Park, Yongxiu County, Jiujiang City, Jiangxi Province Patentee before: Jiangxi Star-Fire Silicone Factory of Bluestar New Chemical Materials Co.,Ltd. |