CN108640300A - A kind of general antisludging agent of salt industry joint production process of salt and salt-cake and its application - Google Patents
A kind of general antisludging agent of salt industry joint production process of salt and salt-cake and its application Download PDFInfo
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- CN108640300A CN108640300A CN201810430761.9A CN201810430761A CN108640300A CN 108640300 A CN108640300 A CN 108640300A CN 201810430761 A CN201810430761 A CN 201810430761A CN 108640300 A CN108640300 A CN 108640300A
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- salt
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- antisludging agent
- production process
- cake
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
Abstract
The invention discloses a kind of general antisludging agents of salt industry joint production process of salt and salt-cake, including organophosphor and high molecular polymer, the high molecular polymer includes hydrolysis of polymaleic anhydride of the molecular weight between 1,000 2,000 ten thousand, terpolymer T15, Antiprex.A, and the organophosphor includes in aminotrimethylenephosphonic acid, ethylenediamine tetramethylene phosphonic acid；The present invention is for the existing technical problem of scale inhibitor for salt manufacture, a kind of efficient general antisludging agent of sal prunella co-generation system is provided, for solving sal prunella co-generation system heat transmission equipment scale problems, the efficient sequestering power of product utilization organic phosphine and the excellent dispersibility of high molecular polymer, can act on salt system and nitre system simultaneously.
Description
Technical field
The present invention is a kind of salt industry technical field more particularly to a kind of general scale inhibition of salt industry joint production process of salt and salt-cake
Agent and its application.
Background technology
In salt manufacturing production, heat exchanger and evaporator fouling be perplex the common problem of each salt making enterprises, once salt making equipment
Fouling will reduce heat transfer efficiency, increase energy consumption, shorten the production cycle.There are three types of methods to solve equipment knot for salt making system at present
Dirty problem：Acid adding neutralization, ultrasonic scale prevention, addition antisludging agent；By production inspection, acid adding and ultrasound wave descaling are to production
Have a degree of negative effect (acid adding can increase the corrosion of equipment, while the quadruple effect brine pH after concentrating can reach 11 again,
Scale formation is still serious；Ultrasound wave descaling is for fine and close, hard calcium carbonate scale without apparent antiscaling effect).Therefore it makes
Mode that salt enterprise generally use addition antisludging agent and regular pickling are combined solves the problems, such as equipment scaling.
Chinese patent application 200910224621.7 discloses a kind of compound resistance being suitable for high hard high-alkali industrial circulating water
Dirty agent is made of 1-hydroxy ethylidene-1,1-diphosphonic acid, poly-aspartate, polymaleic anhydride, polyacrylic acid dispersant；This patented invention
Product by detection, scale inhibition performance is extremely low under the conditions of salt manufacturing, due to be mostly high molecular polymer compounding made of, it is right
The sequestering power of calcium ions and magnesium ions is poor.Chinese patent application 201210311210.3 discloses a kind of scale inhibitor for salt manufacture, is by 2-
Phosphonobutane -1.2.4- tricarboxylic acids, diethylene triamine pentamethylene phosphonic, polymaleic anhydride, acrylic acid-sulfonate-nonionic three
Membered copolymer and deionized water composition；The formula of this patent disclosure, phosphorus content is higher, and after salt making enterprises use, salt matter meets not
The requirement of chlor-alkali plant, ion membrane voltage can gradually rise, and the service life for shortening ionic membrane (according to production inspection, works as system
When salt antisludging agent phosphorus content is more than 3.5%, chlor-alkali plant membrane voltage can steeply rise, and send out alarm).Moreover, because salt system, nitre
System production technique is different, calcium ions and magnesium ions mainly free in salt system, therefore requires to compare to the chelation of antisludging agent
It is high；Nitre system is in several effects in end of whole system, and brine is constantly concentrated by evaporation, and mainly has glauberite dirt and salt in the circulatory system
Dirt, therefore it is required that antisludging agent has extremely strong dispersibility, the polymaleic anhydride molecular weight used in this patent is only 600-800
Ten thousand, the high request of salt making enterprises is not achieved in dispersibility.There are no can be used simultaneously in sal prunella co-generation system on the market at present
Antisludging agent product.
Therefore, in order to solve the above technical problems, simplifying the addition of salt making enterprises antisludging agent, a kind of salt industry sal prunella coproduction
The exploitation of the general antisludging agent of technique is necessary.
Invention content
The purpose of the present invention is to provide a kind of general antisludging agents of salt industry joint production process of salt and salt-cake, solve in above-mentioned background
The problem of proposition.
To achieve the above object, the present invention provides the following technical solutions：
A kind of general antisludging agent of salt industry joint production process of salt and salt-cake, including organophosphor and high molecular polymer, the high score
Sub- polymer includes the hydrolyzed polymaleic anhydride of terpolymer T15, Antiprex.A and molecular weight between 1000-2000 ten thousand
Acid anhydride.
As the further scheme of the present invention, the organophosphor includes aminotrimethylenephosphonic acid, ethylenediamine tetramethylene phosphine
Acid.
As the further scheme of the present invention, the terpolymer T15 is with Epoxysuccinic acid, acrylic acid, acryloyl
Amine substance is copolymerized under conditions of catalyst and initiator obtains according to a certain ratio.
As the further scheme of the present invention, the mass ratio of the organophosphor and high molecular polymer is 1:1-1:8.
As the further scheme of the present invention, the Antiprex.A passes through acrylic acid modified.
As the further scheme of the present invention, the hydrolysis of polymaleic anhydride is synthesized by solvent method.
The above-mentioned general antisludging agent of salt industry joint production process of salt and salt-cake for sal prunella co-generation system halogen transportation pipeline, heats room, pre-
Hot cell, evaporator, the additive amount in smart halogen are 10-25mg/L.
The present invention is using the efficient sequestering power of organic phosphine and the excellent dispersibility of high molecular polymer, in conjunction with organising
The synergistic function mechanism for closing object develops a kind of general antisludging agent of sal prunella co-generation system by a large amount of orthogonal experiment.And
With reference to standard GB/T/T16632-2008 (measurement of water treatment agent scale-inhibiting properties-tosca method), in conjunction with salt making enterprises
Practical condition, simulation evaporating concentration process is in experimental determination product of the present invention and existing scale inhibitor for salt manufacture on the market
Scale-inhibiting properties.Meanwhile determining product with reference to professional standard HG/T3537-2010 (water treatment agent hydroxy ethylene diphosphonic acid)
Total phosphorus content, the experimental results are shown inthe following table：
As can be seen from the table, product of the invention has scale inhibition performance is high, phosphorus content is low etc. compared to existing product
Advantage.Compared to existing technology, product of the invention strictly controls the range of phosphorus content in 1.5%-3.5%, both has height
The sequestering power of effect, and there is extremely strong peptizaiton, it can be good at the high request for meeting sal prunella co-generation system, simplify salt manufacturing
The adding technology of enterprise.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention provides a kind of efficient general scale inhibition of sal prunella co-generation system for the existing technical problem of scale inhibitor for salt manufacture
Agent, for solving sal prunella co-generation system heat transmission equipment scale problems；The efficient sequestering power of product utilization organic phosphine and high score
The excellent dispersibility of sub- polymer can act on salt system and nitre system simultaneously.
Scale inhibition performance of the present invention is high, controls the range of phosphorus content in 1.5%-3.5%, and phosphorus content is low, safe and non-toxic.
Specific implementation mode
Embodiment 1
A kind of general antisludging agent of sal prunella coproduction, is prepared by following mass fraction percentage：
Aminotrimethylenephosphonic acid 10%；Ethylenediamine tetramethylene phosphonic acid 10%；Terpolymer T15 30%；Hydrolyze poly- horse
Carry out acid anhydrides (solvent method synthesizes, and molecular weight is between 1000-2000 ten thousand) 20%；Antiprex.A (acrylic acid modified) 10%；It is remaining
Amount is deionized water.
The above-mentioned general antisludging agent of salt industry joint production process of salt and salt-cake for sal prunella co-generation system halogen transportation pipeline, heats room, pre-
Hot cell, evaporator, the additive amount in smart halogen are 10-25mg/L.
Embodiment 2
A kind of general antisludging agent of sal prunella coproduction, is prepared by following mass fraction percentage：
Aminotrimethylenephosphonic acid 5%；Ethylenediamine tetramethylene phosphonic acid 15%；Terpolymer T15 25%；Hydrolyze poly- horse
Carry out acid anhydrides (solvent method synthesizes, and molecular weight is between 1000-2000 ten thousand) 25%；Antiprex.A (acrylic acid modified) 10%；Its
Surplus is deionized water.
The above-mentioned general antisludging agent of salt industry joint production process of salt and salt-cake for sal prunella co-generation system halogen transportation pipeline, heats room, pre-
Hot cell, evaporator, the additive amount in smart halogen are 10-25mg/L.
Embodiment 3
A kind of general antisludging agent of sal prunella coproduction, is prepared by following mass fraction percentage：
Aminotrimethylenephosphonic acid 15%；Ethylenediamine tetramethylene phosphonic acid 5%；Terpolymer T15 20%；Hydrolyze poly- horse
Carry out acid anhydrides (solvent method synthesizes, and molecular weight is between 1000-2000 ten thousand) 20%；Antiprex.A (acrylic acid modified) 20%；Its
Surplus is deionized water.
The above-mentioned general antisludging agent of salt industry joint production process of salt and salt-cake for sal prunella co-generation system halogen transportation pipeline, heats room, pre-
Hot cell, evaporator, the additive amount in smart halogen are 10-25mg/L.
Embodiment 4
A kind of general antisludging agent of sal prunella coproduction, is prepared by following mass fraction percentage：
Aminotrimethylenephosphonic acid 5%；Ethylenediamine tetramethylene phosphonic acid 20%；Terpolymer T15 30%；Hydrolyze poly- horse
Carry out acid anhydrides (solvent method synthesizes, and molecular weight is between 1000-2000 ten thousand) 25%；Antiprex.A (acrylic acid modified) 20%；Its
Surplus is deionized water.
The above-mentioned general antisludging agent of salt industry joint production process of salt and salt-cake for sal prunella co-generation system halogen transportation pipeline, heats room, pre-
Hot cell, evaporator, the additive amount in smart halogen are 10-25mg/L.
The general antisludging agent of sal prunella co-generation system of the present invention, can be used not only for salt making enterprises, moreover it is possible to light in sugaring, seawater
The frontiers such as change, industrial circulating water are promoted the use of.
Reference standard GB/T/T16632-2008 (measurement of water treatment agent scale-inhibiting properties-tosca method), in conjunction with
Salt making enterprises practical condition, scale-inhibiting properties of the simulation evaporating concentration process in experimental determination product of the present invention.
The scale inhibition performance of above four case study on implementation seen in table has all reached 92% or more, and 4 scale inhibition performance of case study on implementation reaches
It is optimal combination case study on implementation to 95%.
By test in laboratory and production inspection, the general antisludging agent of sal prunella co-generation system of the invention has scale inhibition
The advantages that rate is high, phosphorus content is low, safe and non-toxic, acid and alkali-resistance, high temperature resistant, sal prunella coproduction enterprise only need to be in bittern purifying essence halogen pipeline
Addition 10-25ppm this products (add nitre section antisludging agent) without continuing in nitre system, can meet the production need of salt making enterprises
It asks, salt making system heat transmission equipment 12 months is without scale formation.
Salt mine actual production service condition
The product of the present invention is used in the Li salinization of Hunan Hunan and 92 salinization of Jiangxi, and properties of product are affirmed, is had
Body using effect is following (by taking the Li salinization of Hunan as an example)：
1, changes in process parameters and salt matter
After salinization enterprise uses this product, heating room, the preheating chamber temperature difference, which have, to be obviously improved, system operation a cycle
Heat exchange efficiency is stablized afterwards, and each effect technological parameter is normal；Vaporization chamber falls the reduction of salt block frequency, and brewed brine is boiled the reduction of tank number, reduced
The energy consumption of salt making enterprises；False brush cycle stretch-out, improves salt making enterprises yield；Salt ＆ chemical industry salt content 99.5% with
On, do not receive bad feedback of any downstream chlor-alkali enterprises to salt matter.One production cycle system situation comparison of operation is as follows
Shown in table：
2, heat transmission equipment fouling condition
Salt making enterprises are by dismantling heat transmission equipment inspection, and after the product using the present invention, system operation 12 months, four add
Metal true qualities are presented in hot cell surface, and no scale formation, for heating pipe inner wall without scale formation, scale inhibition effect is excellent；Each heating
Plugging phenomenon in room has apparent reduction, heating room that metal true qualities are presented than before, without any scale formation, salinization enterprise pickling week
Phase extended to 12 months by original 3 months, had saved the cost of pickling, reduces the probability of equipment acid corrosion, extends salt
The production cycle of change.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (8)
1. a kind of general antisludging agent of salt industry joint production process of salt and salt-cake, including organophosphor and high molecular polymer, which is characterized in that
The high molecular polymer includes that the hydrolysis of terpolymer T15, Antiprex.A and molecular weight between 1000-2000 ten thousand is poly-
Maleic anhydride.
2. the general antisludging agent of salt industry joint production process of salt and salt-cake according to claim 1, which is characterized in that the organophosphor
Including aminotrimethylenephosphonic acid, ethylenediamine tetramethylene phosphonic acid.
3. the general antisludging agent of salt industry joint production process of salt and salt-cake according to claim 1, which is characterized in that the ternary is total
Polymers T15 is with Epoxysuccinic acid, acrylic acid, acrylamide substance, according to a certain ratio in the condition of catalyst and initiator
Lower copolymerization obtains.
4. the general antisludging agent of salt industry joint production process of salt and salt-cake according to claim 1, which is characterized in that the organophosphor
Mass ratio with high molecular polymer is 1:1-1:8.
5. the general antisludging agent of salt industry joint production process of salt and salt-cake according to claim 1, which is characterized in that described
Antiprex.A passes through acrylic acid modified.
6. the general antisludging agent of salt industry joint production process of salt and salt-cake according to claim 2, which is characterized in that the hydrolysis is poly-
Maleic anhydride is synthesized by solvent method.
7. a kind of general antisludging agent of salt industry joint production process of salt and salt-cake as described in claim 1, defeated for sal prunella co-generation system
Halogen pipeline, heating room, preheating chamber, evaporator.
8. a kind of general antisludging agent of salt industry joint production process of salt and salt-cake as described in claim 1, the additive amount in smart halogen are
10-25mg/L。
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| CN201810430761.9A CN108640300A (en) | 2018-05-08 | 2018-05-08 | A kind of general antisludging agent of salt industry joint production process of salt and salt-cake and its application |
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Cited By (1)
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| CN109231509A (en) * | 2018-11-15 | 2019-01-18 | 山东泰和水处理科技股份有限公司 | A kind of scale inhibitor for salt manufacture and its application |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190509 Address after: 410005 No. 519 Jianxiang Road, Furong District, Changsha City, Hunan Province Applicant after: HUNAN SALT INDUSTRY CO.,LTD. Applicant after: HUNAN LIGHT INDUSTRY & SALT INDUSTRY GROUP TECHNICAL CENTER CO.,LTD. Address before: 410000 No. 519 Jianxiang Road, Furong District, Changsha City, Hunan Province Applicant before: HUNAN SALT INDUSTRY CO.,LTD. |
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Address after: 410005 No. 519 Hunan Road, Furong district, Hunan, Changsha Applicant after: Xuetian Salt Group Co.,Ltd. Applicant after: HUNAN LIGHT INDUSTRY & SALT INDUSTRY GROUP TECHNICAL CENTER CO.,LTD. Address before: 410005 No. 519 Hunan Road, Furong district, Hunan, Changsha Applicant before: HUNAN SALT INDUSTRY Co.,Ltd. Applicant before: HUNAN LIGHT INDUSTRY & SALT INDUSTRY GROUP TECHNICAL CENTER Co.,Ltd. |
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Effective date of registration: 20211227 Address after: Floor 15, block a, 388 times Sunshine Avenue West, Yuhua District, Changsha, Hunan 410000 Applicant after: Xuetian Salt Group Co.,Ltd. Address before: 410005 No. 519 Jianxiang Road, Furong District, Changsha City, Hunan Province Applicant before: Xuetian Salt Group Co.,Ltd. Applicant before: HUNAN LIGHT INDUSTRY & SALT INDUSTRY GROUP TECHNICAL CENTER CO.,LTD. |
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