CN105482504A - Method for preparing PVC filling material from phosphogypsum as raw material - Google Patents
Method for preparing PVC filling material from phosphogypsum as raw material Download PDFInfo
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- CN105482504A CN105482504A CN201510846775.5A CN201510846775A CN105482504A CN 105482504 A CN105482504 A CN 105482504A CN 201510846775 A CN201510846775 A CN 201510846775A CN 105482504 A CN105482504 A CN 105482504A
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- phosphogypsum
- filler
- raw material
- make
- pvc material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of phosphogypsum application and concretely relates to a method for preparing a PVC filling material from phosphogypsum as a raw material. The method comprises mixing beta-type semi-hydrated gypsum and anhydrite according to an appropriate ratio, adding stearate into the mixture, carrying out a high temperature mixing reaction process and carrying out mechanical vibration. The method improves modified filler mechanical strength and chemical propertied, relieves compatibility of phosphogypsum and a polymer, has simple processes, is free of special equipment, greatly reduces a cost, improves product performances and improves a phosphogypsum comprehensive utilization ratio.
Description
Technical field
The present invention relates to phosphogypsum Application Areas, be specifically related to a kind of method taking phosphogypsum as raw material and make the filler of PVC material.
Background technology
Phosphogypsum is the solid slag of Phosphate Fertilizer Industry, at present, show according to relevant statistics, the phosphogypsum total amount that China stores up has reached more than 2.5 hundred million tons, and annual newly-increased phosphogypsum quantity discharged is also more than 5,000 ten thousand tons, the rapid growth of phosphogypsum and bulk deposition, not only land occupation resource and cause environmental stress, too increase the economical load of enterprise, and the development of the national economy pressure of China.Therefore, accelerate the comprehensive utilization technique creativity of phosphogypsum, realize turning waste into wealth, turning bane into boon, having become in China's economic construction an important techno-economic policy, is also the problem in the urgent need to address of Faced In Sustainable Development.According to the gist of a document of " State Council is about the notice printing and distributing Circular Economy Development Strategy and Immediate action plan " (No. [2013] 5, promulgated by the State Council), one of resource utilization major construction projects have been listed in the comprehensive utilization of the industrial solid castoff such as phosphogypsum, flyash in, become Establishing Circular Economy Syste m in China, one of vital task of building a resource-conserving and environment-friendly society.
At present, the utilization of phosphogypsum mainly contains the following aspects: 1. make cement setting retarder; 2. Sulphuric acid salt; 3. building materials of gypsum is made; 4. make soil improvement agent etc., but its utilization ratio is only 2%-3%, resource utilization efficiency is lower.Due to phosphogypsum crystal morphology in the form of sheets, be applied to thermotolerance, resistance to impact shock, thermal conductivity and the insulativity etc. that are conducive to improving the soft section bar of polyvinyl chloride in polyvinyl chloride soft section bar filler.
In the prior art, phosphogypsum has the feature of typical laminal filler, as filler effect in the plastic mainly increment reduce costs, can also be used to improve the Young's modulus meeting system, shock strength and flexural strength etc., but the polarity spectrum that phosphogypsum mainly exists the polarity of mineral filler and superpolymer as the application of application particularly in pvc material in the plastic of a kind of novel filler is very large, easily cause the two consistency bad, thus detrimentally affect is brought to the processing characteristics of weighting material and the application properties of goods, and directly phosphogypsum is used as the filler of pvc material, its complete processing is complicated, cost is high, add the comprehensive utilization cost of phosphogypsum on the contrary.
Summary of the invention
The present invention, for solving the problem, provides a kind of low cost, the easy-operating method taking phosphogypsum as raw material and make the filler of PVC material.
Be achieved especially by following scheme:
Take phosphogypsum as the method that raw material makes the filler of PVC material, comprise the following steps:
(1) by phosphogypsum through calcining at constant temperature process, obtain beta-type semi-hydrated gypsum; The semi-hydrated gypsum choosing 30-45%, after secondary clacining process, obtains anhydrite; After being mixed with anhydrite by beta-type semi-hydrated gypsum, obtain batch mixing;
(2) by batch mixing and stearate be 100:(2.5-4 in mass ratio) carry out after high temperature mixes, through vibration treatment 10-15min, obtaining modified filler.
The temperature of described calcining at constant temperature is 150-200 DEG C.
The temperature of described calcining at constant temperature is 180-200 DEG C.
Described secondary clacining adopts the calcining that heats up.
The described speed heating up calcining is 3-5 DEG C/min.
Described high temperature mixing, its temperature is 500-600 DEG C, and mixing time is 10-20min.
Described vibration treatment, its vibrational frequency is 800-1000Hz.
Described modified filler is used as the production filler of PVC plastic.
Beneficial effect of the present invention
Pass through the present invention program, adopt beta-type semi-hydrated gypsum and anhydrite by appropriate proportioning batch mixing, and carry out hybrid reaction by adding stearate, make the physical strength of modified filler, stable chemical nature is improved, and alleviate the compatibility problem of phosphogypsum and high molecular polymer, cooperative mechanical vibration again, makes water in material structure be removed again, and don't destroys its crystal property and structure.Because present invention process is simple, without especial equipment requirements, its cost significantly reduces successively, and the performance of goods improves, and then improves phosphogypsum comprehensive utilization ratio.By carrying out contact angle and activation index experiment to modified filler of the present invention, before untreated phosphogypsum, the all honest explanation of activation index and contact angle: the contact angle of water on modified filler surface becomes large and filler worsened wettability, hydrophobicity increases, modified effect is good, and activation index reaches more than 90%, illustrates and has at most the phosphogypsum surface of 10% to be wetting ability, and then improve problem compatible with hydrophobic polyvinyl chloride resin, contribute to the intensity improving PVC material.
Filler of the present invention not only can be used in the course of processing of PVC material, also can be used in the course of processing of the plastic materials such as PMMA, PE.
Embodiment
Below in conjunction with concrete embodiment, further restriction is done to technical scheme of the present invention, but claimed scope is not only confined to done description.
Embodiment 1
Take phosphogypsum as the method that raw material makes the filler of PVC material, comprise the following steps:
(1) by 10kg phosphogypsum calcination processing at constant temperature 160 DEG C, beta-type semi-hydrated gypsum is obtained; Choosing 3kg beta-type semi-hydrated gypsum, is, after continuing calcination processing under the condition of 4.5 DEG C/min, obtain anhydrite at temperature rise rate; After being mixed with anhydrite by semi-hydrated gypsum, obtain batch mixing;
(2) at temperature is 500 DEG C, after batch mixing is mixed 18min with 0.3kg sodium stearate, then be the vibration treatment 10min of 800Hz through frequency, obtain modified filler.
Measure this modified filler contact angle, contact angle is 105 °, and activation index is 92%.
Embodiment 2
Take phosphogypsum as the method that raw material makes the filler of PVC material, comprise the following steps:
(1) by 10kg phosphogypsum calcination processing at constant temperature 200 DEG C, beta-type semi-hydrated gypsum is obtained; Choosing 4.5kg beta-type semi-hydrated gypsum, is, after continuing calcination processing under the condition of 5 DEG C/min, obtain anhydrite at temperature rise rate; After being mixed with anhydrite by semi-hydrated gypsum, obtain batch mixing;
(2) at temperature is 550 DEG C, by batch mixing with after 0.25kg calcium stearate mixing 15min, then be the vibration treatment 12min of 1000Hz through frequency, obtain modified filler.
Measure this modified filler contact angle, contact angle is 108 °, and activation index is 89%.
Embodiment 3
Take phosphogypsum as the method that raw material makes the filler of PVC material, comprise the following steps:
(1) by 10kg phosphogypsum calcination processing at constant temperature 150 DEG C, beta-type semi-hydrated gypsum is obtained; Choosing 4kg beta-type semi-hydrated gypsum, is, after continuing calcination processing under the condition of 3.5 DEG C/min, obtain anhydrite at temperature rise rate; After being mixed with anhydrite by semi-hydrated gypsum, obtain batch mixing;
(2) at temperature is 600 DEG C, by batch mixing with after 0.35kg stearate mixing 15min, then be the vibration treatment 14min of 880Hz through frequency, obtain modified filler.
Measure this modified filler contact angle, contact angle is 110 °, and activation index is 92%.
Embodiment 4
Take phosphogypsum as the method that raw material makes the filler of PVC material, comprise the following steps:
(1) by 10kg phosphogypsum calcination processing at constant temperature 180 DEG C, beta-type semi-hydrated gypsum is obtained; Choosing 4kg beta-type semi-hydrated gypsum, is, after continuing calcination processing under the condition of 3 DEG C/min, obtain anhydrite at temperature rise rate; After being mixed with anhydrite by semi-hydrated gypsum, obtain batch mixing;
(2) at temperature is 580 DEG C, after batch mixing is mixed 20min with 0.4kg sodium stearate, be the vibration treatment 15min of 900Hz through frequency, obtain modified filler.
Measure this modified filler contact angle, contact angle is 100 °, and activation index is 95%.
Claims (8)
1. be the method that raw material makes the filler of PVC material with phosphogypsum, it is characterized in that, comprise the following steps:
(1) by phosphogypsum through calcining at constant temperature process, obtain beta-type semi-hydrated gypsum; The semi-hydrated gypsum choosing 30-45%, after secondary clacining process, obtains anhydrite; After being mixed with anhydrite by beta-type semi-hydrated gypsum, obtain batch mixing;
(2) by batch mixing and stearate be 100:(2.5-4 in mass ratio) carry out after high temperature mixes, through vibration treatment 10-15min, obtaining modified filler.
2. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, it is characterized in that, the temperature of described calcining at constant temperature is 150-200 DEG C.
3. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1 or 2, it is characterized in that, the temperature of described calcining at constant temperature is 180-200 DEG C.
4. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, it is characterized in that, described secondary clacining adopts the calcining that heats up.
5. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, is characterized in that, the described speed heating up calcining is 3-5 DEG C/min.
6. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, is characterized in that, described high temperature mixing, its temperature is 500-600 DEG C, and mixing time is 10-20min.
7. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, it is characterized in that, described vibration treatment, its vibrational frequency is 800-1000Hz.
8. the method taking phosphogypsum as raw material and make the filler of PVC material as claimed in claim 1, it is characterized in that, described modified filler is used as the production filler of PVC plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846775.5A CN105482504A (en) | 2015-11-29 | 2015-11-29 | Method for preparing PVC filling material from phosphogypsum as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846775.5A CN105482504A (en) | 2015-11-29 | 2015-11-29 | Method for preparing PVC filling material from phosphogypsum as raw material |
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| Publication Number | Publication Date |
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| CN105482504A true CN105482504A (en) | 2016-04-13 |
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| CN201510846775.5A Pending CN105482504A (en) | 2015-11-29 | 2015-11-29 | Method for preparing PVC filling material from phosphogypsum as raw material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009713A (en) * | 2016-05-12 | 2016-10-12 | 贵州开磷磷石膏综合利用有限公司 | Superfine gypsum micro-powder serving as padding for preparation of polymer product and preparation method thereof |
| CN107529537A (en) * | 2017-08-22 | 2018-01-02 | 贵州开磷磷石膏综合利用有限公司 | A kind of manufacture method that PVC fillers are produced with fresh ardealite |
| CN114044639A (en) * | 2021-12-10 | 2022-02-15 | 贵州省建筑材料科学研究设计院有限责任公司 | Water-based polymer modified phosphogypsum powder surface method and modified phosphogypsum powder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203894A (en) * | 1997-09-29 | 1999-01-06 | 黄维栋 | Method for producing white hemihydrate gyp by using phophogypsum |
| CN101423350A (en) * | 2008-11-21 | 2009-05-06 | 江苏省一夫新材料科技有限公司 | Anhydrite cement for building and method for producing the same |
| CN102276228A (en) * | 2011-05-30 | 2011-12-14 | 昆明理工大学 | Preparation method of ardealite recrystallization wall material |
| CN102643065A (en) * | 2011-02-17 | 2012-08-22 | 徐迅 | Phosphogypsum self-leveling material |
| CN103435937A (en) * | 2013-08-28 | 2013-12-11 | 贵州开磷遵义碱厂 | Method for using phosphogypsum as polyvinyl chloride resin filler |
-
2015
- 2015-11-29 CN CN201510846775.5A patent/CN105482504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203894A (en) * | 1997-09-29 | 1999-01-06 | 黄维栋 | Method for producing white hemihydrate gyp by using phophogypsum |
| CN101423350A (en) * | 2008-11-21 | 2009-05-06 | 江苏省一夫新材料科技有限公司 | Anhydrite cement for building and method for producing the same |
| CN102643065A (en) * | 2011-02-17 | 2012-08-22 | 徐迅 | Phosphogypsum self-leveling material |
| CN102276228A (en) * | 2011-05-30 | 2011-12-14 | 昆明理工大学 | Preparation method of ardealite recrystallization wall material |
| CN103435937A (en) * | 2013-08-28 | 2013-12-11 | 贵州开磷遵义碱厂 | Method for using phosphogypsum as polyvinyl chloride resin filler |
Non-Patent Citations (1)
| Title |
|---|
| 罗惠莉等: "硬石膏复合改性研究", 《山东建材》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009713A (en) * | 2016-05-12 | 2016-10-12 | 贵州开磷磷石膏综合利用有限公司 | Superfine gypsum micro-powder serving as padding for preparation of polymer product and preparation method thereof |
| CN106009713B (en) * | 2016-05-12 | 2018-12-04 | 贵州开磷磷石膏综合利用有限公司 | Applied to the ultra-fine Gypsum Fibrosum micropowder and preparation method thereof in macromolecule material product preparation as filler |
| CN107529537A (en) * | 2017-08-22 | 2018-01-02 | 贵州开磷磷石膏综合利用有限公司 | A kind of manufacture method that PVC fillers are produced with fresh ardealite |
| CN114044639A (en) * | 2021-12-10 | 2022-02-15 | 贵州省建筑材料科学研究设计院有限责任公司 | Water-based polymer modified phosphogypsum powder surface method and modified phosphogypsum powder |
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Application publication date: 20160413 |
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