CN109592801A - Slow-release scale inhibitor and preparation method thereof - Google Patents
Slow-release scale inhibitor and preparation method thereof Download PDFInfo
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- CN109592801A CN109592801A CN201811339345.4A CN201811339345A CN109592801A CN 109592801 A CN109592801 A CN 109592801A CN 201811339345 A CN201811339345 A CN 201811339345A CN 109592801 A CN109592801 A CN 109592801A
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- scale inhibitor
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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
- C02F5/12—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 nitrogen
- C02F5/125—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 nitrogen combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
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Abstract
The present invention relates to a kind of slow-release scale inhibitors and preparation method thereof, belong to water-treatment technology field.Slow-release scale inhibitor of the present invention, is prepared from the following raw materials in parts by weight: 5~15 parts of polyhistidine, 3~10 parts of hydroxycarboxylate, 50~80 parts of kaolin, 20~40 parts of micropore quasi-mineral, 3~5 parts of non-water-soluble adhesive.Design is scientific and reasonable for inventive formulation, and biological degradability is good, in the natural environment can fast degradation, avoid antisludging agent discharge to the long-term hazards of environment；It is nontoxic to organism and the mankind simultaneously；The present invention provides a kind of simple and convenient preparation methods simultaneously.
Description
Technical field
The present invention relates to a kind of slow-release scale inhibitors and preparation method thereof, belong to water-treatment technology field.
Background technique
In water treatment field, scale inhibition and inhibition are very important two projects.With the development of new material technology, inhibition
Technology is increasingly mature, but still there is ample room for improvement in scale inhibition field.
Existing antisludging agent is mainly phosphorous organic and inorganic compound and some other organic polymer, main original
Reason is by chelating Ca2+、Mg2+Ion prevents its crystallization, crystal growth is interfered, to prevent scale from generating.Phosphorus-containing compound
There are problems that water pollution also thering is detrimental effect to the health of human body, so that it is very big to cause its application field to receive
Limitation.The problems such as other inorganic polymers, equally there is also eutrophication, degradation difficulty, toxicity.
In addition, existing antisludging agent is ingredient soluble easily in water, dissolved rapidly after being contacted with water, be difficult to control its dosage,
Limit its use on the midget plants such as family's water dispenser.
Summary of the invention
The object of the present invention is to provide a kind of slow-release scale inhibitors, and design is scientific and reasonable for formula, and biological degradability is good, certainly
Energy fast degradation in right environment avoids antisludging agent discharge to the long-term hazards of environment；It is nontoxic to organism and the mankind simultaneously
It is harmless；The present invention provides a kind of simple and convenient preparation methods simultaneously.
The slow-release scale inhibitor, is prepared from the following raw materials in parts by weight: 5~15 parts of polyhistidine, hydroxycarboxylate 3
~10 parts, 50~80 parts of kaolin, 20~40 parts of micropore quasi-mineral, 3~5 parts of non-water-soluble adhesive.
Preferably, be made of the raw material of following weight percentage: 8~12 parts of polyhistidine, hydroxycarboxylate 5~8
Part, 60~70 parts of kaolin, 30~35 parts of micropore quasi-mineral, 3~4 parts of non-water-soluble adhesive.
Preferably, the molecular weight of polyhistidine is 2000-3000.
Preferably, hydroxycarboxylate is sodium citrate, sodium gluconate, potassium tartrate or sodium salicylate etc..
Preferably, micropore quasi-mineral is diatomite or zeolite powder.
Preferably, non-water-soluble adhesive be ethyl cellulose, polyvinylpyrrolidone, polyurethane resin, epoxy resin,
Alkyd resin, unsaturated polyester resin, phenolic resin, acrylic resin, urea resin, melamine resin or silicone resin, preferably
Ethyl cellulose, polyethylene pyrrole network alkanone, polyurethane resin or alkyd resin.
The preparation method of the slow-release scale inhibitor, comprising the following steps:
(1) polyhistidine and hydroxycarboxylate are weighed first according to 1~1.5:1 of mass ratio, and puts into ball mill, ball
Mill 15~30 minutes is uniformly mixed it；
(2) the micropore quasi-mineral with mixture equal quality obtained by step (1) is weighed, investment step (1) obtains mixed
It closes in object, continues ball milling 30~60 minutes, be uniformly mixed it；
(3) mixture in step (2) is put into pelletizer, φ 3~4mm consolidation particle is made, and dry and make it have
Some strength；
(4) weigh with step (3) drying gained particle equal quality kaolin, ball milling 30~45 minutes；By step (3)
In particle obtained as seed grain, put into pelletizer and be granulated, φ 5~6mm particle is made；
(5) it by particle obtained in step (4), is dried at a temperature of 120~180 DEG C, outer layer kaolin, which is formed, to be had by force
The shell of degree；
(6) two times of quality of kaolin of step (5) drying gained particle is weighed, then weighs micropore quasi-mineral, is mixed
Ball milling 30~60 minutes；Using particle obtained in step (5) as seed grain, pelletizer is put into, water-insoluble bonding is added
Agent is granulated, and φ 7~8mm particle is made, and in 150 DEG C of drying to get the slow-release scale inhibitor.
In step (6), the mass ratio of kaolin and micropore quasi-mineral is 2:1~2.
In the slow-release scale inhibitor formula, kaolin, the natural minerals that micropore quasi-mineral is environmental sound；Poly
Histidine, hydroxycarboxylate, non-water-soluble adhesive are substance non-toxic to humans, and polyhistidine is that child must
The amino acid needed, therefore the slow-release scale inhibitor described in this is safe to the human body, it is nontoxic；The polyhistidine, hydroxycarboxylate,
Non-water-soluble adhesive is the product of easy natural degradation, environmentally friendly.
In the slow-release scale inhibitor, the kernel of micropore quasi-mineral mixing polyhistidine and hydroxycarboxylate's formation,
Water imbibition is strong, and kaolin shell is interior in middle level after water suction forms saturated solution kernel, externally keeps hyperosmosis；Middle layer kaolin
Shell has some strength, and has certain permeability, makes kernel polyhistidine and hydroxycarboxylate's slow release, reaches slow
The purpose released；The outer layer micropore quasi-mineral adhesive layer shell has good water penetration and mechanical strength, in protection particle
While internal structure, the rate of release of kernel active principle is further decreased.
Compared with prior art, the invention has the following advantages:
(1) chelation present invention utilizes polyhistidine and hydroxycarboxylate in water makes the Ca in water2+, Mg2 +Equal metal ions are not easy to form the carbonate easily precipitated；Simultaneously because polyhistidine itself is positively charged, to subtle
MgCO3、CaCO3With suction-operated；MgCO is adsorbed3、CaCO3Polyhistidine itself due to carrying positive charge,
Effectively prevent MgCO3、CaCO3The growth of crystal, so that scale be prevented to generate, scale inhibition performance is up to 99% or more；
(2) slow-release scale inhibitor described in, biological degradability is good, can fast degradation in the natural environment, avoid antisludging agent
Discharge the long-term hazards to environment；Simultaneously its effective component be national regulation allow using food additives, to organism with
And the mankind are nontoxic, in addition to alternative traditional antisludging agent and the ideal antisludging agent of safe drinking water；
(3) slow-release scale inhibitor described in scale inhibition effective component slow release in water, solves other antisludging agents dissolution speed
Fast problem is spent, antisludging agent application extension has been arrived into the fields such as the small-sized water treatment facilities of desktop；
(4) preparation method of the slow-release scale inhibitor described in is simple and convenient, easy to industrialized production.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but it is not intended to limit implementation of the invention.
Embodiment 1
(1) polyhistidine and sodium citrate are weighed first, in accordance with mass ratio 1:1, and puts into ball mill, ball milling 20 minutes,
It is uniformly mixed it；
(2) diatomite with mixture equal quality obtained by step (1) is weighed, is put into the mixture that step (1) obtains,
Continue ball milling 40 minutes, is uniformly mixed it；
(3) mixture in step (2) is put into pelletizer, φ 3~4mm consolidation particle is made, and dry and make it have
Some strength；
(4) weigh with step (3) drying gained particle equal quality kaolin, ball milling 45 minutes；By system in step (3)
The particle obtained puts into pelletizer and is granulated, φ 5~6mm particle is made as seed grain；
(5) particle obtained in step (4) is dried at a temperature of 180 DEG C, outer layer kaolin, which is formed, has the outer of intensity
Shell；
(6) two times of quality of kaolin of step (5) drying gained particle is weighed, then weighs diatomite, kaolin and silicon
The mass ratio of diatomaceous earth be 2:1, mixing and ball milling 30 minutes；Using particle obtained in step (5) as seed grain, investment is granulated
Machine is added ethyl cellulose ethanol solution (its quality is equal with polyhistidine quality) and is granulated, φ 7~8mm particle is made, and
In 150 DEG C of drying to get the slow-release scale inhibitor.
Embodiment 2
(1) polyhistidine and sodium gluconate are weighed first, in accordance with mass ratio 1.5:1, and puts into ball mill, ball milling 30
Minute, it is uniformly mixed it；
(2) diatomite with mixture equal quality obtained by step (1) is weighed, is put into the mixture that step (1) obtains,
Continue ball milling 60 minutes, is uniformly mixed it；
(3) mixture in step (2) is put into pelletizer, φ 3~4mm consolidation particle is made, and dry and make it have
Some strength；
(4) weigh with step (3) drying gained particle equal quality kaolin, ball milling 30 minutes；By system in step (3)
The particle obtained puts into pelletizer and is granulated, φ 5~6mm particle is made as seed grain；
(5) particle obtained in step (4) is dried at a temperature of 150 DEG C, outer layer kaolin, which is formed, has the outer of intensity
Shell；
(6) two times of quality of kaolin of step (5) drying gained particle is weighed, then weighs diatomite, kaolin and silicon
The mass ratio of diatomaceous earth be 4:3, mixing and ball milling 40 minutes；Using particle obtained in step (5) as seed grain, investment is granulated
Machine is added polyvinylpyrrolidone ethanol solution (half that its quality is polyhistidine quality) and is granulated, 7~8mm of φ is made
Particle, and in 150 DEG C of drying to get the slow-release scale inhibitor.
Embodiment 3
(1) polyhistidine and sodium salicylate are weighed first, in accordance with mass ratio 1.2:1, and puts into ball mill, ball milling 15 divides
Clock is uniformly mixed it；
(2) zeolite powder with mixture equal quality obtained by step (1) is weighed, is put into the mixture that step (1) obtains,
Continue ball milling 30 minutes, is uniformly mixed it；
(3) mixture in step (2) is put into pelletizer, φ 3~4mm consolidation particle is made, and dry and make it have
Some strength；
(4) weigh with step (3) drying gained particle equal quality kaolin, ball milling 45 minutes；By system in step (3)
The particle obtained puts into pelletizer and is granulated, φ 5~6mm particle is made as seed grain；
(5) particle obtained in step (4) is dried at a temperature of 120 DEG C, outer layer kaolin, which is formed, has the outer of intensity
Shell；
(6) two times of quality of kaolin of step (5) drying gained particle is weighed, then weighs zeolite powder, kaolin and boiling
The mass ratio of mountain flour be 1:1, mixing and ball milling 60 minutes；Using particle obtained in step (5) as seed grain, investment is granulated
Machine is added ethyl cellulose ethanol solution (one third that its quality is polyhistidine quality) and is granulated, 7~8mm of φ is made
Particle, and in 150 DEG C of drying to get the slow-release scale inhibitor.
Comparative example 1
Commercially available scale inhibition particle.
Embodiment 1-3 and the antisludging agent of comparative example 1 are subjected to scale inhibition performance test, scale inhibition performance testing standard is GB/T
16632-2008, test condition and test result is as follows table:
The scale inhibition performance test condition and result of 1 embodiment 1-3 of table and 1 antisludging agent of comparative example
It is seen by test result, the scale inhibition particle of embodiment 1-3 preparation can slowly sustained release effective component, and its resistance
Dirty rate maintains very high level always；Comparative example 1 is market scale inhibition particle on sale, and initial scale inhibition performance is higher, but is hindered
Dirty effect is not lasting enough.
Claims (9)
1. a kind of slow-release scale inhibitor, it is characterised in that be prepared from the following raw materials in parts by weight: 5~15 parts of polyhistidine, hydroxyl
3~10 parts of yl carboxylic acid salt, 50~80 parts of kaolin, 20~40 parts of micropore quasi-mineral, 3~5 parts of non-water-soluble adhesive.
2. slow-release scale inhibitor according to claim 1, it is characterised in that: the molecular weight of polyhistidine is 2000-3000.
3. slow-release scale inhibitor according to claim 1, it is characterised in that: hydroxycarboxylate is sodium citrate, gluconic acid
Sodium, potassium tartrate or sodium salicylate.
4. slow-release scale inhibitor according to claim 1, it is characterised in that: micropore quasi-mineral is diatomite or zeolite powder.
5. slow-release scale inhibitor according to claim 1, it is characterised in that: non-water-soluble adhesive is ethyl cellulose, gathers
Vinylpyrrolidone, polyurethane resin, epoxy resin, alkyd resin, unsaturated polyester resin, phenolic resin, acrylic resin,
Urea resin, melamine resin or silicone resin.
6. slow-release scale inhibitor according to claim 1, it is characterised in that be made of the raw material of following weight percentage: more
It is 8~12 parts of polyhistidyl, 5~8 parts of hydroxycarboxylate, 60~70 parts of kaolin, 30~35 parts of micropore quasi-mineral, water-insoluble
3~4 parts of adhesive.
7. a kind of preparation method of any slow-release scale inhibitor of claim 1-6, it is characterised in that the following steps are included:
(1) first by polyhistidine and hydroxycarboxylate's ball milling 15~30 minutes；
(2) the micropore quasi-mineral with mixture equal quality obtained by step (1), the mixture that investment step (1) obtains are weighed
In, continue ball milling 30~60 minutes；
(3) mixture in step (2) is put into pelletizer, φ 3~4mm consolidation particle is made, and dry；
(4) weigh with step (3) drying gained particle equal quality kaolin, ball milling 30~45 minutes；By system in step (3)
The particle obtained puts into pelletizer and is granulated, φ 5~6mm particle is made as seed grain；
(5) it by particle obtained in step (4), is dried at a temperature of 120~180 DEG C；
(6) two times of quality of kaolin of step (5) drying gained particle is weighed, then weighs micropore quasi-mineral, mixing and ball milling
30~60 minutes；Using particle obtained in step (5) as seed grain, pelletizer is put into, non-water-soluble adhesive is added and makes
φ 7~8mm particle is made in grain, and in 150 DEG C of drying to get the slow-release scale inhibitor.
8. the preparation method of slow-release scale inhibitor according to claim 7, it is characterised in that: in step (1), polyhistidine
Mass ratio with hydroxycarboxylate is 1~1.5:1.
9. the preparation method of slow-release scale inhibitor according to claim 7, it is characterised in that: in step (6), kaolin and micro-
The mass ratio of hole quasi-mineral is 2:1~2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811339345.4A CN109592801A (en) | 2018-11-12 | 2018-11-12 | Slow-release scale inhibitor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811339345.4A CN109592801A (en) | 2018-11-12 | 2018-11-12 | Slow-release scale inhibitor and preparation method thereof |
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| CN109592801A true CN109592801A (en) | 2019-04-09 |
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| CN201811339345.4A Withdrawn CN109592801A (en) | 2018-11-12 | 2018-11-12 | Slow-release scale inhibitor and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157401A (en) * | 2019-05-06 | 2019-08-23 | 中国石油天然气股份有限公司 | Preparation method of controllable long-acting slow-release scale inhibitor capsule |
-
2018
- 2018-11-12 CN CN201811339345.4A patent/CN109592801A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157401A (en) * | 2019-05-06 | 2019-08-23 | 中国石油天然气股份有限公司 | Preparation method of controllable long-acting slow-release scale inhibitor capsule |
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Application publication date: 20190409 |
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