CN104262676B - A kind of method recycling polyacrylamide superfines - Google Patents
A kind of method recycling polyacrylamide superfines Download PDFInfo
- Publication number
- CN104262676B CN104262676B CN201410522713.4A CN201410522713A CN104262676B CN 104262676 B CN104262676 B CN 104262676B CN 201410522713 A CN201410522713 A CN 201410522713A CN 104262676 B CN104262676 B CN 104262676B
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- Prior art keywords
- polyacrylamide
- superfines
- fine powder
- add
- dispersant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The present invention relates to a kind of method recycling polyacrylamide superfines, comprise the following steps: the polyacrylamide superfines less than 100 mesh reclaimed is added hydrolyzer, add the sodium carbonate hydrolytic reagent of 2%, hydrolyze 3 hours under the conditions of being placed in 80 DEG C, take out material；Above-mentioned material is added comminutor, adds pelletize dispersant, obtain granular material；Granular material obtained above is inputted drying machine, through being dried to obtain wanted product.The beneficial effects of the present invention is: originally can only undersell less than the polyacrylamide superfines of 100 mesh, the invention provides the method that thin powder recovery utilizes, add the added value of fine powder, the net profit 0.4 ten thousand that realizes per ton, polyacrylamide superfines success backing up hydrolyzer in batches, fine powder conversion ratio is 99.16%, high conversion and do not affect product quality, need not additionally increase pelletize dispersant, will not additionally produce more fine powder, the method is suitable for commercial introduction.
Description
Technical field
The invention belongs to chemical technology field, particularly relate to a kind of method recycling polyacrylamide superfines.
Background technology
Polyacrylamide (PAM) is high molecular weight water soluble polymer, has good fall resistive, is widely used in stone
Oil exploitation.Polyacrylamide can produce substantial amounts of fine particle due to the shearing of comminutor in process of production, and these are tiny
Granule is dried the air inducing of system owing to the loss of moisture can become superfine dust in dry run, dust pelletizing system separates
Out, after using in this course, hydrolysis carries out the technique of twice pelletize and is particularly acute.It addition, dried polypropylene
Amide also can produce substantial amounts of fine powder due to the rolloff of mill and the pipe friction of induced draught system in crushing process.
Particle diameter when polyacrylamide is used by oil field has strict control, it is necessary to control at the 18 above particle size content≤4-5% of mesh,
The 100 following particle size content≤4-5% of mesh.Main cause one is that fine powder exceeds standard and can affect the mobility of product, causes oilfield injection
The ratio of product injection rate and injected water volume of standing is inharmonious, has a strong impact on the mother liquid concentration at the poly-station of note, and causes noting poly-viscosity
Unstable；Two is that in particle diameter, fine powder exceeds standard and can affect the course of dissolution of product.This is because fine powder exceeds standard in note collecting process
Can affect product dispersion in water, cause fine powder to coalesce, agglomerate periphery is surrounded by water, and the inside is honeycomb texture impact
The infiltration of water, thus affect the water-soluble speed of product, it is simply that " flake " that we are usually said.Life of the prior art
Produce producer be usually in crushing process by being provided with 20 mesh, the riddle of 100 mesh sorts out packing and undersells, this
Hui Shi producer profit is affected.
Summary of the invention
It is an object of the invention to provide a kind of method recycling polyacrylamide superfines, improve finished product
Output capacity, makes the fine powder produced in production process obtain effectively recycling.
For realizing above-mentioned goal of the invention, technical scheme is as follows:
A kind of method recycling polyacrylamide superfines, comprises the steps:
1, the polyacrylamide superfines of recovery is proportionally added in the hydrolyzer containing polyacrylamide colloid granule,
Add sodium carbonate hydrolytic reagent, hydrolyze 3 hours under the conditions of 80 DEG C, take out material；
2, above-mentioned material is added comminutor, and add pelletize dispersant, obtain granular material；
3, granular material obtained above is inputted drying machine, through being dried to obtain desired product.
Further, in described step 1, the particle diameter of polyacrylamide superfines is less than 100 mesh.
Further, in described step 1, the additional proportion of polyacrylamide superfines is polyacrylamide colloid granule gross weight
The 2-6% of amount ratio.
Further, in described step 1, the additional proportion of sodium carbonate hydrolytic reagent is polyacrylamide colloid granule gross weight ratio
2%.
The consumption not adding the material granulation dispersant after the hydrolysis of polyacrylamide superfines is 0.6%-0.75%, adds poly-
The usage amount of the material granulation dispersant after acrylamide superfines is 0.65-0.72%；Do not add polyacrylamide ultra-fine
Material after powder hydrolysis is through dried, and drying system fine powder quantum of output is 40kg-55kg/T, adds polyacrylamide and surpasses
Material after fine powder is through dried, and drying system fine powder quantum of output is 40kg-60kg/T；Do not add polyacrylamide to surpass
The fine powder dried material of hydrolysis is after pulverizing, and crushing system fine powder quantum of output is 20kg-30kg/T, adds polypropylene
Material after amide superfines is after pulverizing, and crushing system fine powder quantum of output is 23kg-32kg/T；Do not add polypropylene
Amide superfines hydrolysis sampling Detection viscosity is 71.0Cp-72.5Cp, and degree of hydrolysis is 26.9%-28.1%, adds polypropylene
Amide superfines hydrolysis sampling Detection viscosity is 70.5Cp-73.0Cp, and degree of hydrolysis is 27.2%-28.3%.Illustrate to add and gather
After acrylamide superfines, it is not required to additionally increase the consumption of pelletize dispersant, also will not additionally increase the product of fine powder
Output, the hydrolysis on polyacrylamide colloid granule also will not produce impact.
The present invention has the advantage that with good effect: originally can only be at a low price less than the polyacrylamide superfines of 100 mesh
Sell, the invention provides the method that thin powder recovery utilizes, add the added value of fine powder, per ton realize net profit 0.4
Ten thousand, polyacrylamide superfines success backing up hydrolyzer in batches, fine powder conversion ratio is 99.16%, high conversion and not
Affect product quality, it is not necessary to extra increase pelletize dispersant, will not additionally produce more fine powder, be suitable for commercial introduction.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, but does not limit protection scope of the present invention.
Embodiment 1
Adding 100g acrylamide content in hydrolyzer is the colloidal solid of 23%, adds polyacrylamide superfines
Content is 2%, adds the sodium carbonate of 2% as hydrolytic reagent, hydrolyzes 3 hours at 80 DEG C, takes out material and adds and makes
Grain machine, and add pelletize dispersant, obtain granular material, be dried, after drying in this granular material is placed in baking oven
Weigh, weight 29.595g, solid content: 88.5%, yield is: 97.01%, viscosity: 71.8Cp, degree of hydrolysis: 27.5%,
Water-insoluble: 0.13%.
Embodiment 2
Adding 100g acrylamide content in hydrolyzer is the colloidal solid of 23%, adds polyacrylamide superfines
Content is 3%, adds the sodium carbonate of 2% as hydrolytic reagent, hydrolyzes 3 hours at 80 DEG C, takes out material and adds and makes
Grain machine, and add pelletize dispersant, obtain granular material, be dried, after drying in this granular material is placed in baking oven
Weigh, weight 30.509g, solid content: 89.0%, yield is: 96.98%, viscosity: 72.0Cp, degree of hydrolysis: 27.2%,
Water-insoluble: 0.15%.
Embodiment 3
Adding 100g acrylamide content in hydrolyzer is the colloidal solid of 23%, adds polyacrylamide superfines
Content is 4%, adds the sodium carbonate of 2% as hydrolytic reagent, hydrolyzes 3 hours at 80 DEG C, takes out material and adds and makes
Grain machine, and add pelletize dispersant, obtain granular material, be dried, after drying in this granular material is placed in baking oven
Weigh, weight 31.18g, solid content: 90.2%, yield is: 96.98%, viscosity: 70.5Cp, degree of hydrolysis: 26.9%,
Water-insoluble: 0.16%.
Embodiment 4
Adding 100g acrylamide content in hydrolyzer is the colloidal solid of 23%, adds polyacrylamide superfines
Content is 5%, adds the sodium carbonate of 2% as hydrolytic reagent, hydrolyzes 3 hours at 80 DEG C, takes out material and adds and makes
Grain machine, and add pelletize dispersant, obtain granular material, be dried, after drying in this granular material is placed in baking oven
Weigh, weight 32.8136g, solid content: 88.7%, yield is: 97.02%, viscosity: 69.0Cp, degree of hydrolysis: 28.1%,
Water-insoluble: 0.10%.
Embodiment 5
Adding 100g acrylamide content in hydrolyzer is the colloidal solid of 23%, adds polyacrylamide superfines
Content is 6%, adds the sodium carbonate of 2% as hydrolytic reagent, hydrolyzes 3 hours at 80 DEG C, takes out material and adds and makes
Grain machine, and add pelletize dispersant, obtain granular material, be dried, after drying in this granular material is placed in baking oven
Weigh, weight 33.636g, solid content: 89.5%, yield is: 97.11%, viscosity: 70.0Cp, degree of hydrolysis: 27.7%,
Water-insoluble: 0.13%.
Above embodiments of the invention are described in detail, but described content has been only presently preferred embodiments of the present invention, no
The practical range for limiting the present invention can be considered.All impartial changes made according to the present patent application scope and improvement etc.,
Within all should still belonging to the patent covering scope of the present invention.
Claims (2)
1. the method recycling polyacrylamide superfines, comprises the steps:
(1) the polyacrylamide superfines of recovery is proportionally added into containing polyacrylamide gel
In the hydrolyzer of body granule, add sodium carbonate hydrolytic reagent, under the conditions of 80 DEG C, hydrolyze 3 little
Time, take out material；
(2) above-mentioned material is added comminutor, and add pelletize dispersant, obtain granular substance
Material；
(3) granular material obtained above is inputted drying machine, desired through being dried to obtain
Product；
In described step (1), the particle diameter of polyacrylamide superfines is less than 100 mesh；
In described step (1), the additional proportion of polyacrylamide superfines is polyacrylamide gel
The 2-6% of body granule gross weight ratio.
A kind of polyacrylamide superfines of recycling the most according to claim 1
Method, it is characterised in that: in described step (1), the additional proportion of sodium carbonate hydrolytic reagent is poly-third
The 2% of acrylamide colloidal solid gross weight ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410522713.4A CN104262676B (en) | 2014-09-30 | 2014-09-30 | A kind of method recycling polyacrylamide superfines |
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|---|---|---|---|
| CN201410522713.4A CN104262676B (en) | 2014-09-30 | 2014-09-30 | A kind of method recycling polyacrylamide superfines |
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| CN104262676A CN104262676A (en) | 2015-01-07 |
| CN104262676B true CN104262676B (en) | 2016-10-26 |
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| CN201410522713.4A Expired - Fee Related CN104262676B (en) | 2014-09-30 | 2014-09-30 | A kind of method recycling polyacrylamide superfines |
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| CN111976057A (en) * | 2020-07-27 | 2020-11-24 | 甘肃中科聚合石油科技有限公司 | Polyacrylamide suspending agent granulation recovery unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1022758C (en) * | 1990-06-04 | 1993-11-17 | 中国科学院长春应用化学研究所 | Preparation of high molecular anion type polycrylamide |
| JP3392266B2 (en) * | 1995-08-11 | 2003-03-31 | 日本マイヤー株式会社 | Track plate for spindle guide in torsion race machine |
| CN1084339C (en) * | 1996-06-06 | 2002-05-08 | 山东工业大学 | Method for preparing high molecular wt. anionic polyacrylamide |
| CN1240799A (en) * | 1998-07-06 | 2000-01-12 | 中国石油天然气总公司石油勘探开发科学研究院 | Process for preparing powder-type partially hydrolytic polyacrylamide |
| CN101649022B (en) * | 2009-07-01 | 2011-08-17 | 山东宝莫生物化工股份有限公司 | Preparing method of lowering residual monomer content of ultra high molecular weight anion-type polyacrylamide |
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