CN107903350A - The method that spent acid amount in positive resin production process is reduced using gradient dilution method - Google Patents
The method that spent acid amount in positive resin production process is reduced using gradient dilution method Download PDFInfo
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- CN107903350A CN107903350A CN201711187771.6A CN201711187771A CN107903350A CN 107903350 A CN107903350 A CN 107903350A CN 201711187771 A CN201711187771 A CN 201711187771A CN 107903350 A CN107903350 A CN 107903350A
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- 239000002253 acid Substances 0.000 title claims abstract description 80
- 239000011347 resin Substances 0.000 title claims abstract description 31
- 229920005989 resin Polymers 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003113 dilution method Methods 0.000 title claims abstract description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 96
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 241001566735 Archon Species 0.000 claims abstract description 11
- 238000010790 dilution Methods 0.000 claims abstract description 11
- 239000012895 dilution Substances 0.000 claims abstract description 11
- 239000012452 mother liquor Substances 0.000 claims abstract description 11
- 239000003729 cation exchange resin Substances 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 2
- -1 stir 10-60 minutes Substances 0.000 claims 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 10
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 10
- 239000003456 ion exchange resin Substances 0.000 description 6
- 229920003303 ion-exchange polymer Polymers 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/34—Introducing sulfur atoms or sulfur-containing groups
- C08F8/36—Sulfonation; Sulfation
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of method that spent acid amount in positive resin production process is reduced using gradient dilution method, include the following steps：In cation exchange resin manufacturing process is produced, choose in gel-type or macroporous type Archon input sulfonating reaction kettle and carry out sulfonating reaction；It is 92% sulfuric acid to add and be configured to concentration with the in line mother liquor acid or 60-70% dilute sulfuric acid solutions of 105% concentrated sulfuric acid and recycling, is used as sulfonating reaction acid；After completing sulfonating reaction, gradient dilution, cleaning resin, obtain positive resin product.It is that 92% sulfuric acid is used as sulfonating reaction acid that the present invention, which takes and adds 105% concentrated sulfuric acid to be configured to concentration using mother liquor and dilute acid supplement, diluted acid uses the method that gradient dilution is applied mechanically in addition, dilute acid concentration can be made to concentrate on >=70%, it is recycled into making positive resin or reach the concentration range that other fields use, so as to achieve the purpose that to economize on resources, reduce spent acid and discharge.
Description
Technical field
It is particularly a kind of that sun is reduced using gradient dilution method the invention belongs to fine chemistry industry macromolecule resin synthetic material field
The method of spent acid amount during production of resins.
Background technology
Ion exchange resin develops rapidly so far from the sixties in last century, because being that one kind can show ion exchanging function
High molecular material, and its application technology development mutually promote, interdepend always, become feature separation material in each field the sixth of the twelve Earthly Branches
The first choice of material and indispensable material, demand mesh benefit is poly- to be increased.With the fast development of China's economic, China's current the sixth of the twelve Earthly Branches becomes full generation
The producing country of boundary's ion exchange resin maximum, wherein cation exchange resin output account for larger ratio.Ion exchange resin
Be by the macromolecule matrix of cross-linked structure with so-called fixed ion and Yi Li the Key of many cation exchange groups of chemical bonds
And fixed ion combine symbol it is opposite ion composition.Counter ion can dissociate in the solution, and under certain conditions may be used
Exchange reaction occurs for the ion identical with other symbols.Because ion-exchange reactions is generally reversible, become under certain condition
The ion changed can desorb, and ion exchange resin is returned to original ionic species again, thus ion exchange resin by exchange and
Regeneration can recycle.Be widely used scope.
The ion exchange resin overwhelming majority used at present be all using styrene (St) and divinylbenzene (DVB) copolymer as
Matrix, cation exchange resin are with chemical bonds sulfonic acid group (- SO on the macromolecule matrix of cross-linked structure3H) exchange
The resin of group, is obtained with the 92% above-mentioned copolymerization sphere of sulfuric acid sulfonation, because most usually on each phenyl ring of copolymer
A sulfonic acid group can only be introduced, the exchange capacity of 5mmol/g.d or so can only be obtained, reacts the sour and few of consumption.It is big absolutely
Part acid is because being washed with water resin after sulfonating reaction, it is necessary to overcome and prevent from discharging higher dilution because water and sulfuric acid meet to produce
Thermal conductivity cause polymerization bead splits broken and intensity and is affected, it is necessary to is progressively slowly diluted with water, by polymeric beads inside and outside and sulfuric acid
Equalization of concentration displacement of successively decreasing cleans out, and thus produces the diluted acid of substantial amounts of various concentrations, and these diluted acids are reduced because of concentration
Sulfonating reaction cannot be directly used in again, can only neutralize discharge, thus, not only cause the larger wasting of resources, but also make at waste water
Reason also becomes cumbersome, or even influences normal production run, and its spent acid is comprehensively utilized, reducing waste is the work
The important topic that skill must be properly settled.
The content of the invention
It is above-mentioned existing in cation exchange resin manufacturing process to solve and improving for the above-mentioned deficiency of the prior art
The defects of present in the Waste Sulfuric Acid comprehensive utilization of generation and technical problem, according to an embodiment of the invention, it is desirable to provide a kind of St-
The method for reducing spent acid amount in positive resin production process in DVB systems positive resin production process using gradient dilution method.
According to embodiment, spent acid amount in a kind of reduction positive resin production process using gradient dilution method provided by the invention
Method, includes the following steps：
In cation exchange resin manufacturing process is produced, gel-type or macroporous type Archon (styrene St- diethyls are chosen
Alkene benzene DVB polymerize bead, and wherein DVB accounts for weight ratio and carries out sulfonating reaction 7%) to put into sulfonating reaction kettle；
Add and be configured to concentration with 105% concentrated sulfuric acid and the in line mother liquor acid or 60-70% dilute sulfuric acid solutions of recycling as 92%
Sulfuric acid, uses as sulfonating reaction acid；
After completing sulfonating reaction, according to the following 1. or 2. described processing gradients dilution, cleaning resin, positive resin production is obtained
Product；
1. material input set is washed in kettle, sulfate liquor is put into mother liquor acid basin；The sulfuric acid that concentration is 60% is filled
Full set washes kettle, stirs 10-60 minutes, is transported to liquid in the set acid basin that concentration is 70% after static, concentration is 70%
The sour basin of set is transported in spent acid basin after being full of for matching somebody with somebody 92% or taking out；Continue concentration washing kettle full of set for 50% sulfuric acid,
Liquid, is transported in the set acid basin that concentration is 60% by stirring 10-60 minutes after static；Again by concentration be 40% sulfuric acid
Kettle is washed full of set, is stirred 10-60 minutes, is transported to liquid in the set acid basin that concentration is 50% after static；It is by concentration
30% sulfuric acid washes kettle full of set, stirs 10-60 minutes, is transported to liquid in the set acid basin that concentration is 40% after static；
The sulfuric acid that concentration is 20% is washed into kettle full of set again, is stirred 10-60 minutes, liquid is transported to 30% set acid storage after static
In tank；The sulfuric acid that concentration is 10% is washed into kettle full of set, is stirred 10-60 minutes, it is 20% that liquid is transported to concentration after static
Set acid basin in；The sulfuric acid that concentration is 7% is washed into kettle full of set again, stirs 10-60 minutes, is transported to liquid after static
Concentration is in 10% set acid basin；Continue the sulfuric acid that concentration is 5% washing kettle full of set, stir 10-60 minutes, after static
Liquid is transported in the set acid basin that concentration is 7%；The sulfuric acid that concentration is 3% is squeezed into set again to wash in kettle, while is added few
Water is measured, after washing kettle full of set, is stirred 10-60 minutes, is transported to liquid in the set acid basin that concentration is 5% after static；Will be dense
The sulfuric acid spent for 1% is squeezed into set and is washed in kettle, while adds relatively large water, after washing kettle full of set, stirs 10-60 minutes, after static
Liquid is transported in the set acid basin that concentration is 3%；Substantial amounts of water is squeezed into set again to wash in kettle, after washing kettle full of set, stirring
10-60 minutes, liquid is transported in the set acid basin that concentration is 1% after static；Finally resin is cleaned with substantial amounts of water dry
Only；
2. material input set is washed in kettle, sulfate liquor is put into mother liquor acid basin；By the sulfuric acid that concentration is 60%
It is driven into set and washes interior kettle, after washing kettle full of set, stir 10-60 minute, it is sour that liquid is transported to the set that concentration is 70% after static
In basin, concentration is transported in spent acid basin after being full of for 70% set acid basin for matching somebody with somebody 92% or taking out；According to 1. described
Technique, concentration press 60%, 50%, 30%, 10%, 5%, 1% gradient, dilution, cleaning resin respectively.
Relative to the prior art, in order to achieve the purpose that it is comprehensively utilized, discharge capacity is reduced as far as possible, according to different process
The change of section acid concentration, spent acid in positive resin production process is efficiently used using gradient dilution method；The acid of different periods is merged
Collect, form some concentration gradients, with dilute with dense, to meet requirement of the different periods to acid concentration in technique, so circulation can
The spent acid to be discharged is set to be finally reached a higher concentration (about>70%) collect or discharge.So the i.e. sulfuric acid of this concentration
Circulating and recovering can be prepared with high-concentration sulfuric acid (such as 105%) and makes (92%) acid produced needed for positive resin, and can reach it
The sulfuric acid concentration ranges that its field (such as chemical industry, chemical fertilizer, plating, papermaking, sulfate production, water treatment agent) uses, so as to reach
It is a kind of simple and easy to do, widely used, of low cost, side of excellent to the purpose for the spent acid discharge that economizes on resources, reduces
Method.
Usually in cation exchange resin manufacturing process, general concentration is that 98% sulfuric acid adds water to be configured to concentration to be
92% acid carries out sulfonating reaction with Archon (St-DVB systems).The present invention is used concentration as 105% concentrated sulfuric acid and mother liquor and gradient
It is 92% sulfuric acid to dilute 70% grade of the diluted acid compound concentration applied mechanically, through test of many times with production verification to ' Archon ' sulfonating reaction
Do not influenced with final product quality, and because of the raising of acid concentration, relative to using 98% acid, the diluted acids for consuming low concentration, can subtract more
Few high amount of concentrated sulfuric acid usage amount, the burden of cost and wastewater treatment to reducing product have all been contributed.In addition pair no matter
Be to gel-type Archon (St-DVB systems) or macroporous type Archon (St-DVB systems) progress sulfonating reaction, ladder using the present invention
Spend dilution method, the diluted acid that various concentrations gradient shelves are simply respectively adopted according to the performance of ' Archon ' carries out recycled, finally with>
70% concentration discharges reuse and sale, added sulfuric acid can be made circularly to use to large extent, reaches reduction acid consumption
With the purpose for reducing spent acid discharge, the requirement of clean manufacturing and resource reutilization is realized, it is great to energy-saving justice meaning.While because
The acid solution of various concentrations gradient shelves adds in order, can control the steady release of acid and water ' heat of dilution ', can both ensure product quality,
Required dilution, scavenging period can be shortened again.Required equipment also can be controlled easily using DCS system, made technology controlling and process and set
Received shipment row, simple operation are efficient.
Embodiment
With reference to specific embodiment, the present invention is further explained.These embodiments are interpreted as being merely to illustrate this hair
It is bright rather than limit the scope of the invention.After the content of the invention recorded has been read, those skilled in the art can
To be made various changes or modifications to the present invention, these equivalence changes and modification equally fall into the model that the claims in the present invention are limited
Enclose.
Embodiment 1
In cation exchange resin manufacturing process is produced, choosing gel-type Archon, (St-DVB polymerize bead, wherein DVB
Weight ratio is accounted for carry out sulfonating reaction in 7%) 950 kilograms input 5000L sulfonating reaction kettles.
Add and matched somebody with somebody with 105% concentrated sulfuric acid, 98% concentrated sulfuric acid of replacement and the in line mother liquor acid or 60-70% dilute sulfuric acid solutions that recycle
It is 5300 kilograms of 92% sulfuric acid that concentration, which is made, is used as sulfonating reaction acid.
After completing sulfonating reaction, according to Summary 1. described technique, using gradient dilution, cleaning resin
(the diluted acid input amount per class is 5300 kilograms), obtains 001x7 positive resin products.
The 1. continuous 5 batches large-scale production product 001x7 positive resin product quality results of table
Embodiment 2
In cation exchange resin manufacturing process is produced, choosing macroporous type Archon, (St-DVB polymerize bead, wherein DVB
Weight ratio is accounted for carry out sulfonating reaction in 7%) 600 kilograms input 5000L sulfonating reaction kettles.
Add and matched somebody with somebody with 105% concentrated sulfuric acid, 98% concentrated sulfuric acid of replacement and the in line mother liquor acid or 60-70% dilute sulfuric acid solutions that recycle
It is 4800 kilograms of 92% sulfuric acid that concentration, which is made, is used as sulfonating reaction acid.
After completing sulfonating reaction, according to the described technique of Summary 2., using gradient dilution, cleaning resin
(the diluted acid input amount per class is 4800 kilograms), obtains D001 positive resin products.
The 2. continuous 5 batches large-scale production product D001 positive resin product quality results of table
Claims (2)
1. a kind of method that spent acid amount in positive resin production process is reduced using gradient dilution method, it is characterized in that, including following step
Suddenly：
In cation exchange resin manufacturing process is produced, choose in gel-type or macroporous type Archon input sulfonating reaction kettle and carry out
Sulfonating reaction；
It is 92% sulphur to add and be configured to concentration with the in line mother liquor acid or 60-70% dilute sulfuric acid solutions of 105% concentrated sulfuric acid and recycling
Acid, uses as sulfonating reaction acid；
After completing sulfonating reaction, according to the following 1. or 2. described processing gradients dilution, cleaning resin, positive resin product is obtained；
1. material input set is washed in kettle, sulfate liquor is put into mother liquor acid basin；The sulfuric acid that concentration is 60% is full of set
Kettle is washed, is stirred 10-60 minutes, is transported to liquid in the set acid basin that concentration is 70% after static, the set acid that concentration is 70%
Basin is transported in spent acid basin after being full of for matching somebody with somebody 92% or taking out；Continue concentration washing kettle full of set for 50% sulfuric acid, stir
10-60 minutes, liquid is transported in the set acid basin that concentration is 60% after static；The sulfuric acid that concentration is 40% is full of again
Set washes kettle, stirs 10-60 minutes, is transported to liquid in the set acid basin that concentration is 50% after static；It is 30% by concentration
Sulfuric acid washes kettle full of set, stirs 10-60 minutes, is transported to liquid in the set acid basin that concentration is 40% after static；Again will be dense
Spend and wash kettle full of set for 20% sulfuric acid, stir 10-60 minutes, liquid is transported in 30% set acid basin after static；Will
The sulfuric acid that concentration is 10% washes kettle full of set, stirs 10-60 minute, and it is sour for 20% set that liquid is transported to concentration after static
In basin；The sulfuric acid that concentration is 7% is washed into kettle full of set again, is stirred 10-60 minutes, liquid is transported to concentration after static is
In 10% set acid basin；Continue the sulfuric acid that concentration is 5% washing kettle full of set, stirring 10-60 minutes, it is static after by liquid
It is transported in the set acid basin that concentration is 7%；The sulfuric acid that concentration is 3% is squeezed into set again to wash in kettle, while adds a small amount of water, is filled
After full set washes kettle, stir 10-60 minutes, be transported to liquid in the set acid basin that concentration is 5% after static；It is 1% by concentration
Sulfuric acid squeeze into set and wash in kettle, while add relatively large water, after washing kettle full of set, stir 10-60 minutes, it is static after by liquid
It is transported in the set acid basin that concentration is 3%；Substantial amounts of water is squeezed into set again to wash in kettle, after washing kettle full of set, stirs 10-60
Minute, liquid is transported in the set acid basin that concentration is 1% after static；Finally resin is cleaned up with substantial amounts of water；
2. material input set is washed in kettle, sulfate liquor is put into mother liquor acid basin；The sulfuric acid that concentration is 60% is squeezed into
Wash interior kettle to set, after washing kettle full of set, stir 10-60 minute, it is static after by liquid be transported to concentration for 70% set acid basin
Interior, the set acid basin that concentration is 70% is transported in spent acid basin after being full of for matching somebody with somebody 92% or taking out；According to the 1. described technique,
Concentration presses 60%, 50%, 30%, 10%, 5%, 1% gradient, dilution, cleaning resin respectively.
2. the method according to claim 1 that spent acid amount in positive resin production process is reduced using gradient dilution method, it is special
Sign is that gel-type or macroporous type Archon polymerize bead for St-DVB, and wherein DVB accounts for weight ratio as 7%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289938A (en) * | 2018-10-30 | 2019-02-01 | 扬州金珠树脂有限公司 | The separation of sulfuric acid and the method for covering sour reuse in a kind of ion exchange resin hydrolyzate |
| CN111659335A (en) * | 2020-06-15 | 2020-09-15 | 浙江普尔树脂有限公司 | Cation exchange resin sulfuric acid recovery and reuse equipment and process |
| CN118994461A (en) * | 2024-09-12 | 2024-11-22 | 南京大学 | Preparation method of solvent-free cation exchange resin pretreated by acid jacket |
| CN119306876A (en) * | 2024-12-16 | 2025-01-14 | 扬州金珠树脂有限公司 | A method for producing macroporous ion exchange resin without swelling agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333088A (en) * | 2000-07-11 | 2002-01-30 | 拜尔公司 | Sullfonation method |
-
2017
- 2017-11-24 CN CN201711187771.6A patent/CN107903350A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333088A (en) * | 2000-07-11 | 2002-01-30 | 拜尔公司 | Sullfonation method |
Non-Patent Citations (3)
| Title |
|---|
| A.T.阿美林著，时昭涵等翻译: "《接触法制造硫酸》", 30 September 1958, 化学工业出版社 * |
| 周小雅主编: "《制剂工艺与技术(第二版)》", 31 August 2009, 中国医药科技出版社 * |
| 盛兆琪等: "阳离子交换树脂生产中废酸的回收利用及树脂质量控制", 《化工环保》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289938A (en) * | 2018-10-30 | 2019-02-01 | 扬州金珠树脂有限公司 | The separation of sulfuric acid and the method for covering sour reuse in a kind of ion exchange resin hydrolyzate |
| CN111659335A (en) * | 2020-06-15 | 2020-09-15 | 浙江普尔树脂有限公司 | Cation exchange resin sulfuric acid recovery and reuse equipment and process |
| CN118994461A (en) * | 2024-09-12 | 2024-11-22 | 南京大学 | Preparation method of solvent-free cation exchange resin pretreated by acid jacket |
| CN119306876A (en) * | 2024-12-16 | 2025-01-14 | 扬州金珠树脂有限公司 | A method for producing macroporous ion exchange resin without swelling agent |
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Application publication date: 20180413 |