CN106587679A - Building gypsum powder produced by salt gypsum and preparation method thereof - Google Patents
Building gypsum powder produced by salt gypsum and preparation method thereof Download PDFInfo
- Publication number
- CN106587679A CN106587679A CN201611107758.0A CN201611107758A CN106587679A CN 106587679 A CN106587679 A CN 106587679A CN 201611107758 A CN201611107758 A CN 201611107758A CN 106587679 A CN106587679 A CN 106587679A
- Authority
- CN
- China
- Prior art keywords
- gypsum
- parts
- plaster
- bunt
- auxiliary agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
- C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/468—Purification of calcium sulfates
Abstract
The invention discloses a building gypsum powder produced by salt gypsum and a preparation method of the building gypsum powder produced by the salt gypsum. The building gypsum powder is prepared from 250 to 290 parts of salt gypsum, 15 to 25 parts of promoters and 20 to 25 parts of additives in parts by weight, wherein the promoters are prepared from 3 to 7 parts of diethylenetriamine penta(methylene phosphonic acid) heptasaodium, 5 to 7 parts of ketobutyric acid sodium salt, 5 to 7 parts of sodium metatitantate, and 10 to 12 parts of potassium diformate in parts by weight, and the additives are prepared from 36.5 to 51.5 parts of zinc powder, 35 to 45 parts of quartz powder and 10.5 to 12.5 parts of aluminosilicate in parts by weight. According to the invention, the salt gypsum is used for producing the building gypsum powder, thereby changing waste into valuables, reducing pollution and protecting environment, and the produced building gypsum powder is greatly improved all in mechanical strength, waterproof properties, humidity resistance and service life.
Description
Technical field
The present invention relates to plaster of Paris production technical field, and in particular to a kind of building gypsum plaster of utilization bunt gypsum production
And preparation method thereof.
Background technology
Bunt gypsum is the waste residue of Salt production, and its main component is the calcium sulphate dihydrate containing a large amount of Sodium Chloride.Due to system
Salt process evaporation rate is high, and calcium sulfate nucleation rate is high, and precipitation Gypsum Fibrosum granularity is little, and median particle diameter is about 4-6 microns, specific surface area
Greatly, therefore to bunt gypsum washed with Isolating chlorinated sodium become it is extremely difficult and wash separating technology energy consumption it is too high, this
So that bunt gypsum is difficult to recycle.Current each salt manufacturing factory a large amount of bunt gypsums discharged every year or the gully for being poured over land, or
Person piles up by the sea, gives free rein to ablation, severe contamination soil and ocean, destroys ecological environment, therefore how to become bunt gypsum
Waste be changed into values, resource again come use be urgent need to resolve problem.
On the other hand, with the development of Building Trade in China, the demand of building gypsum plaster is increasing, also increases to ore deposit
The exploitation dynamics of stone Gypsum Fibrosum.But the exploitation of excessive Ore Gypsum Fibrosum brings sagging risk to mining area ground, can also be to Gypsum Fibrosum
The groundwater resources in mining area are polluted, and hence with bunt gypsum the good method that building gypsum plaster is energy-conserving and environment-protective is manufactured.
And when making gypsum hardenite using building gypsum plaster at present, in order to ensure that slurry has certain mobility,
The water yield mixed in the whipping process of Gypsum slurry is higher than the water yield required for theory, after gypsum slurry is hardened, unnecessary water
Divide and escaped from gypsum hardenite, so as to generate substantial amounts of space and pore, these holes are mutually communicated, as long as Gypsum Fibrosum is hard
Change body surface face and touch moisture, moisture will be penetrated into quickly inside it, and migration can be repeated in gypsum hardenite,
Cause gypsum hardenite water absorption rate larger.The dissolubility of calcium sulphate dihydrate is larger in the hydrated product of building gypsum plaster, and crystal
The heat stability of contact point is not high, it is easy to which corrosion occurs in the presence of water, destroys crystal structure, makes the strong of gypsum hardenite
Degree and hardness decline.In sum, gypsum hardenite made by building gypsum plaster has in use low intensity, prevents
The problem of water, humidity resistance difference, so as to the construction material that result in plastering causes service life low because of durability deficiency
Problem.
The content of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of building gypsum plaster of utilization bunt gypsum production
And preparation method thereof, using bunt gypsum produce building gypsum plaster, so as to turn waste into wealth, reduce pollution, environmental protection, made by build
Mechanical strength, water resistance, humidity resistance and the service life for building Gypsum Fibrosum powder is greatly improved.
The technical solution adopted in the present invention is：A kind of building gypsum plaster of utilization bunt gypsum production, the plaster of Paris
Powder is made up according to parts by weight of 250-290 part bunt gypsums, 15-25 parts auxiliary agent and 20-25 part additives, and the auxiliary agent is pressed
It is by the sodium of five methene phosphine of 3-7 parts diethylenetriamine seven, 5-7 part butanone acid sodium-salts, 5-7 parts meta-titanium perborate and 10- according to parts by weight
12 parts of Potassium biformates are made, the additive according to parts by weight be by 36.5-51.5 part zinc powders, 35-45 parts silica flour and
10.5-12.5 part aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, weighs according to aforementioned proportion and chooses each thing
Material, then auxiliary agent and additive are prepared respectively, auxiliary agent is added thereto to after then bunt gypsum is mixed with water, after agitated, sedimentation
Isolate calcium plaster to realize washing bunt gypsum, then the calcium plaster for obtaining is put in plate and frame type filter-press in 0.3-
Plaster block is press-filtered out under 0.35Mpa pressure, is then crushed plaster block, obtain gypsum powder of the particle diameter less than 0.3mm,
Roasting is carried out after again gypsum powder is mixed with additive, the product for finally obtaining roasting carries out fine grinding, is finely ground to particle diameter not
Product is obtained more than 0.134mm；
The concrete operations for preparing auxiliary agent are as follows：Take the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and diformazan
It is put in reactor under the conditions of 75-85 DEG C after sour potassium mixing and reacts 65min, reacted product is dried at 40-45 DEG C
10-15min, then it is 0.3-0.4mm that dried product is crushed to into particle diameter, obtains auxiliary agent.
The concrete operations for preparing additive are as follows：According to weight ratio take 36.5-51.5 part zinc powders, 35-45 parts silica flour and
Particle diameter is crushed to after the mixing of 10.5-12.5 parts aluminosilicate less than 0.2mm, additive is obtained.
The concrete operations washed to bunt gypsum are as follows：Bunt gypsum is put into as its weight 4-5 times and temperature is 60-70
DEG C water in mix after obtain mixture, then add in mixture again and auxiliary agent and stir 30-35min, so that in bunt gypsum
The Sodium Chloride for containing is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settles 30-35min, and top is contained
The solution of Sodium Chloride is discharged, and obtains calcium plaster.
The concrete operations of the roasting are as follows：In the condition that temperature is 85-105 DEG C after gypsum powder is mixed with additive
Lower roasting 2-2.5h.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 4-6 part sodium tungstates.
And for example, the additive also contains 5-7 part aluminium oxidies.
Compared with prior art, the invention has the advantages that：
First, can turn waste into wealth, reduce pollution, environmental protection using bunt gypsum production Gypsum Fibrosum powder, and industrial residue is carried out
Cycling and reutilization, it is possible to reduce the exploitation to Ore Gypsum Fibrosum, saves ore resource；
2nd, auxiliary agent is added during washing to bunt gypsum, the sodium of five methene phosphine of diethylenetriamine seven in auxiliary agent can have
Effect reduces adhesion of the sodium chloride crystal on calcium sulphate dihydrate surface, so as to accelerate the dissolution velocity of Sodium Chloride, improves dissolving
Efficiency, the meta-titanium perborate in auxiliary agent effectively facilitates the dissolving of the sodium of five methene phosphine of diethylenetriamine seven and strengthens the first of diethylenetriamine five
The degree of scatter of the fork sodium of phosphine seven, auxiliary agent can also improve dissolubility of the Sodium Chloride in water, so can reduce to bunt gypsum simultaneously
Water consumption in the technique washed, and reduce washing process energy resource consumption.Auxiliary agent enables bunt gypsum to be loosely dispersed in
In water, Sodium Chloride is faster separated with sulfate dihydrate sodium, improve detersive efficiency, and make clean result more preferably, it is time saving and energy saving；
3rd, when the building gypsum plaster prepared using the present invention makes gypsum hardenite, the zinc powder contained in additive is so that Gypsum Fibrosum
The quantity of through hole is substantially reduced in hardenite pore, so that its surface touches water during gypsum hardenite use
Timesharing, moisture will not be penetrated into quickly inside it, and migration will not be repeated in gypsum hardenite, reduce Gypsum Fibrosum hardening
Body water absorption rate, improves the water resistance and water resistance of gypsum hardenite；
4th, building gypsum plaster of the present invention generates that many crystalline sizes are little, the little crystalline substance that draw ratio is big in heat evolution velocity
Body is interspersed between big crystal, improves the intensity of gypsum hardenite.Using Gypsum Fibrosum made by building gypsum plaster of the present invention
Hardenite intensity is high, and waterproof, humidity resistance are good, are used as construction material durability length, long service life.
5th, the preparation method of building gypsum plaster of the present invention is simple, with low cost, and the product quality of production is stablized.Roasting
Additive is added during burning, promotes calcium sulfate crystal whiskers respectively to homoepitaxial, form the flourishing network structure of every whisker, carried
High calcium sulphate crystal intensity, and then greatly improve the building gypsum plaster intensity of production.
Specifically apply mode
With reference to specific embodiment, the present invention is further elaborated, and protection scope of the present invention is not limited to following enforcement
Example.Implement process, condition, reagent of the present invention etc., in addition to the following content for specially referring to, be the universal knowledege of this area
And common knowledge, the present invention is not particularly limited content.
Embodiment 1
A kind of building gypsum plaster of utilization bunt gypsum production, the building gypsum plaster according to parts by weight be by 250 parts of bunt gypsums,
15 parts of auxiliary agents and 20 parts of additives are made, the auxiliary agent according to parts by weight be by 3 parts of sodium of five methene phosphine of diethylenetriamine seven,
5 parts of butanone acid sodium-salts, 5 parts of meta-titanium perborates and 10 parts of Potassium biformates are made, and the additive is by 36.5 parts according to parts by weight
Zinc powder, 35 parts of silica flours and 10.5 parts of aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, comprises the following steps：
Step one, weigh that to choose each material standby as raw material according to aforementioned proportion；
Step 2, take from standby raw material the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and dioctyl phthalate
It is put in reactor after potassium mixing and reacts 65min under the conditions of 75 DEG C, reacted product is dried into 10min at 40 DEG C, then
It is 0.3mm that dried product is crushed to into particle diameter, obtains auxiliary agent, standby；
Step 3, taking from standby raw material be crushed to particle diameter less than 0.2mm after the mixing of zinc powder, silica flour and aluminosilicate,
Additive is obtained, it is standby；
Step 4, take from standby raw material bunt gypsum and be put into as 4 times of its weight and temperature be mix in 60 DEG C of water after obtain
Mixture, then adds obtained auxiliary agent in step 2 in mixture, together stirs 30min and keeps mixture temperature to be 60
DEG C, so that the Sodium Chloride contained in bunt gypsum is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settle
30min, the solution that Sodium Chloride is contained on top is discharged, and obtains calcium plaster, standby；
Step 5, the calcium plaster obtained in step 4 is put in plate and frame type filter-press it is press-filtered out Gypsum Fibrosum under 0.3Mpa pressure
Block, is then crushed plaster block, obtains gypsum powder of the particle diameter less than 0.3mm, standby；
Step 6, will be in temperature after the gypsum powder that obtained in step 5 and the additive mix homogeneously obtained in step 3
Roasting 2h under conditions of 85 DEG C, obtains product after roasting, standby；
Step 7, product after the roasting obtained in step 6 is finely ground to particle diameter less than 0.134mm, is obtained by bunt gypsum life
The building gypsum plaster of product.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 4 parts of sodium tungstates, to realize that further speed up Sodium Chloride separates with sulfate dihydrate sodium.
And for example, the additive also contains 5 parts of aluminium oxidies, to promote calcium sulfate crystal whiskers respectively to homoepitaxial.
Embodiment 2
A kind of building gypsum plaster of utilization bunt gypsum production, the building gypsum plaster according to parts by weight be by 260 parts of bunt gypsums,
17 parts of auxiliary agents and 22 parts of additives are made, the auxiliary agent according to parts by weight be by 4 parts of sodium of five methene phosphine of diethylenetriamine seven,
5.5 parts of butanone acid sodium-salts, 5.5 parts of meta-titanium perborates and 10.5 parts of Potassium biformates are made, the additive according to parts by weight be by
40.5 parts of zinc powders, 37 parts of silica flours and 11 parts of aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, comprises the following steps：
Step one, weigh that to choose each material standby as raw material according to aforementioned proportion；
Step 2, take from standby raw material the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and dioctyl phthalate
It is put in reactor after potassium mixing and reacts 65min under the conditions of 77 DEG C, reacted product is dried into 11min at 42 DEG C, then
It is 0.3mm that dried product is crushed to into particle diameter, obtains auxiliary agent, standby；
Step 3, taking from standby raw material be crushed to particle diameter less than 0.2mm after the mixing of zinc powder, silica flour and aluminosilicate,
Additive is obtained, it is standby；
Step 4, take from standby raw material bunt gypsum and be put into as 4 times of its weight and temperature be mix in 63 DEG C of water after obtain
Mixture, then adds obtained auxiliary agent in step 2 in mixture, together stirs 31min and keeps mixture temperature to be 62
DEG C, so that the Sodium Chloride contained in bunt gypsum is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settle
31min, the solution that Sodium Chloride is contained on top is discharged, and obtains calcium plaster, standby；
Step 5, the calcium plaster obtained in step 4 is put in plate and frame type filter-press it is press-filtered out Gypsum Fibrosum under 0.32Mpa pressure
Block, is then crushed plaster block, obtains gypsum powder of the particle diameter less than 0.3mm, standby；
Step 6, will be in temperature after the gypsum powder that obtained in step 5 and the additive mix homogeneously obtained in step 3
Roasting 2h under conditions of 90 DEG C, obtains product after roasting, standby；
Step 7, product after the roasting obtained in step 6 is finely ground to particle diameter less than 0.134mm, is obtained by bunt gypsum life
The building gypsum plaster of product.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 4.5 parts of sodium tungstates, to realize that further speed up Sodium Chloride separates with sulfate dihydrate sodium.
And for example, the additive also contains 5.5 parts of aluminium oxidies, to promote calcium sulfate crystal whiskers respectively to homoepitaxial.
Embodiment 3
A kind of building gypsum plaster of utilization bunt gypsum production, the building gypsum plaster according to parts by weight be by 270 parts of bunt gypsums,
20 parts of auxiliary agents and 23 parts of additives are made, the auxiliary agent according to parts by weight be by 5 parts of sodium of five methene phosphine of diethylenetriamine seven,
6 parts of butanone acid sodium-salts, 6 parts of meta-titanium perborates and 11 parts of Potassium biformates are made, and the additive is by 44 parts of zinc according to parts by weight
Powder, 40 parts of silica flours and 11.5 parts of aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, comprises the following steps：
Step one, weigh that to choose each material standby as raw material according to aforementioned proportion；
Step 2, take from standby raw material the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and dioctyl phthalate
It is put in reactor after potassium mixing and reacts 65min under the conditions of 80 DEG C, reacted product is dried into 13min at 43 DEG C, then
It is 0.4mm that dried product is crushed to into particle diameter, obtains auxiliary agent, standby；
Step 3, taking from standby raw material be crushed to particle diameter less than 0.2mm after the mixing of zinc powder, silica flour and aluminosilicate,
Additive is obtained, it is standby；
Step 4, take from standby raw material bunt gypsum and be put into as 5 times of its weight and temperature be mix in 65 DEG C of water after obtain
Mixture, then adds obtained auxiliary agent in step 2 in mixture, together stirs 33min and keeps mixture temperature to be 65
DEG C, so that the Sodium Chloride contained in bunt gypsum is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settle
33min, the solution that Sodium Chloride is contained on top is discharged, and obtains calcium plaster, standby；
Step 5, the calcium plaster obtained in step 4 is put in plate and frame type filter-press it is press-filtered out Gypsum Fibrosum under 0.33Mpa pressure
Block, is then crushed plaster block, obtains gypsum powder of the particle diameter less than 0.3mm, standby；
Step 6, will be in temperature after the gypsum powder that obtained in step 5 and the additive mix homogeneously obtained in step 3
Roasting 2.5h under conditions of 95 DEG C, obtains product after roasting, standby；
Step 7, product after the roasting obtained in step 6 is finely ground to particle diameter less than 0.134mm, is obtained by bunt gypsum life
The building gypsum plaster of product.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 5 parts of sodium tungstates, to realize that further speed up Sodium Chloride separates with sulfate dihydrate sodium.
And for example, the additive also contains 6 parts of aluminium oxidies, to promote calcium sulfate crystal whiskers respectively to homoepitaxial.
Embodiment 4
A kind of building gypsum plaster of utilization bunt gypsum production, the building gypsum plaster according to parts by weight be by 280 parts of bunt gypsums,
23 parts of auxiliary agents and 24 parts of additives are made, the auxiliary agent according to parts by weight be by 6 parts of sodium of five methene phosphine of diethylenetriamine seven,
6.5 parts of butanone acid sodium-salts, 6.5 parts of meta-titanium perborates and 11.5 parts of Potassium biformates are made, the additive according to parts by weight be by
48.5 parts of zinc powders, 42 parts of silica flours and 12 parts of aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, comprises the following steps：
Step one, weigh that to choose each material standby as raw material according to aforementioned proportion；
Step 2, take from standby raw material the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and dioctyl phthalate
It is put in reactor after potassium mixing and reacts 65min under the conditions of 83 DEG C, reacted product is dried into 14min at 44 DEG C, then
It is 0.3mm that dried product is crushed to into particle diameter, obtains auxiliary agent, standby；
Step 3, taking from standby raw material be crushed to particle diameter less than 0.2mm after the mixing of zinc powder, silica flour and aluminosilicate,
Additive is obtained, it is standby；
Step 4, take from standby raw material bunt gypsum and be put into as 5 times of its weight and temperature be mix in 67 DEG C of water after obtain
Mixture, then adds obtained auxiliary agent in step 2 in mixture, together stirs 34min and keeps mixture temperature to be 67
DEG C, so that the Sodium Chloride contained in bunt gypsum is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settle
34min, the solution that Sodium Chloride is contained on top is discharged, and obtains calcium plaster, standby；
Step 5, the calcium plaster obtained in step 4 is put in plate and frame type filter-press it is press-filtered out Gypsum Fibrosum under 0.34Mpa pressure
Block, is then crushed plaster block, obtains gypsum powder of the particle diameter less than 0.3mm, standby；
Step 6, will be in temperature after the gypsum powder that obtained in step 5 and the additive mix homogeneously obtained in step 3
Roasting 2.5h under conditions of 100 DEG C, obtains product after roasting, standby；
Step 7, product after the roasting obtained in step 6 is finely ground to particle diameter less than 0.134mm, is obtained by bunt gypsum life
The building gypsum plaster of product.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 5.5 parts of sodium tungstates, to realize that further speed up Sodium Chloride separates with sulfate dihydrate sodium.
And for example, the additive also contains 6.5 parts of aluminium oxidies, to promote calcium sulfate crystal whiskers respectively to homoepitaxial.
Embodiment 5
A kind of building gypsum plaster of utilization bunt gypsum production, the building gypsum plaster according to parts by weight be by 290 parts of bunt gypsums,
25 parts of auxiliary agents and 25 parts of additives are made, the auxiliary agent according to parts by weight be by 7 parts of sodium of five methene phosphine of diethylenetriamine seven,
7 parts of butanone acid sodium-salts, 7 parts of meta-titanium perborates and 12 parts of Potassium biformates are made, and the additive is by 51.5 parts according to parts by weight
Zinc powder, 45 parts of silica flours and 12.5 parts of aluminosilicates are made.
The preparation method of the building gypsum plaster of described utilization bunt gypsum production, comprises the following steps：
Step one, weigh that to choose each material standby as raw material according to aforementioned proportion；
Step 2, take from standby raw material the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate and dioctyl phthalate
It is put in reactor after potassium mixing and reacts 65min under the conditions of 85 DEG C, reacted product is dried into 15min at 45 DEG C, then
It is 0.4mm that dried product is crushed to into particle diameter, obtains auxiliary agent, standby；
Step 3, taking from standby raw material be crushed to particle diameter less than 0.2mm after the mixing of zinc powder, silica flour and aluminosilicate,
Additive is obtained, it is standby；
Step 4, take from standby raw material bunt gypsum and be put into as 5 times of its weight and temperature be mix in 70 DEG C of water after obtain
Mixture, then adds obtained auxiliary agent in step 2 in mixture, together stirs 35min and keeps mixture temperature to be 70
DEG C, so that the Sodium Chloride contained in bunt gypsum is soluble in water, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settle
35min, the solution that Sodium Chloride is contained on top is discharged, and obtains calcium plaster, standby；
Step 5, the calcium plaster obtained in step 4 is put in plate and frame type filter-press it is press-filtered out Gypsum Fibrosum under 0.35Mpa pressure
Block, is then crushed plaster block, obtains gypsum powder of the particle diameter less than 0.3mm, standby；
Step 6, will be in temperature after the gypsum powder that obtained in step 5 and the additive mix homogeneously obtained in step 3
Roasting 2.5h under conditions of 105 DEG C, obtains product after roasting, standby；
Step 7, product after the roasting obtained in step 6 is finely ground to particle diameter less than 0.134mm, is obtained by bunt gypsum life
The building gypsum plaster of product.
More than based on technical scheme, can more than on the basis of further improved：
Such as, the auxiliary agent also contains 6 parts of sodium tungstates, to realize that further speed up Sodium Chloride separates with sulfate dihydrate sodium.
And for example, the additive also contains 7 parts of aluminium oxidies, to promote calcium sulfate crystal whiskers respectively to homoepitaxial.
Claims (7)
1. the building gypsum plaster that a kind of utilization bunt gypsum is produced, it is characterised in that：The building gypsum plaster is according to parts by weight
It is made up of 250-290 part bunt gypsums, 15-25 parts auxiliary agent and 20-25 part additives, the auxiliary agent is by 3- according to parts by weight
7 parts of sodium of five methene phosphine of diethylenetriamine seven, 5-7 part butanone acid sodium-salts, 5-7 parts meta-titanium perborate and 10-12 part Potassium biformates are made,
The additive is by 36.5-51.5 part zinc powders, 35-45 parts silica flour and 10.5-12.5 part aluminosilicates according to parts by weight
Make.
2. the building gypsum plaster that a kind of utilization bunt gypsum as claimed in claim 1 is produced, it is characterised in that：The auxiliary agent also contains
There are 4-6 part sodium tungstates.
3. the building gypsum plaster that a kind of utilization bunt gypsum as claimed in claim 1 is produced, it is characterised in that：The additive is also
Containing 5-7 part aluminium oxidies.
4. the preparation method of the building gypsum plaster for being produced using bunt gypsum as claimed in claim 1, it is characterised in that according to power
Profit requires that the ratio described in 1 is weighed and chooses each material, then prepares auxiliary agent and additive respectively, after then bunt gypsum is mixed with water
It is added thereto to auxiliary agent, isolates calcium plaster to realize washing bunt gypsum after agitated, sedimentation, then by the Gypsum Fibrosum for obtaining
Slurry is put in plate and frame type filter-press and is press-filtered out plaster block under 0.3-0.35Mpa pressure, is then crushed plaster block, obtains
Gypsum powder of the particle diameter less than 0.3mm, then roasting is carried out after gypsum powder is mixed with additive, finally roasting is obtained
Product carries out fine grinding, is finely ground to particle diameter and obtains product less than 0.134mm；
Wherein, the concrete operations for preparing auxiliary agent are as follows：Take the sodium of five methene phosphine of diethylenetriamine seven, butanone acid sodium-salt, meta-titanium perborate
65min is reacted with being put in reactor under the conditions of 75-85 DEG C after Potassium biformate mixing, by reacted product at 40-45 DEG C
Under be dried 10-15min, then dried product is crushed to into particle diameter for 0.3-0.4mm, obtain auxiliary agent.
5. the preparation method of the building gypsum plaster for being produced using bunt gypsum as claimed in claim 4, it is characterised in that preparation adds
Plus the concrete operations of agent are as follows：36.5-51.5 part zinc powders, 35-45 parts silica flour and 10.5-12.5 part sial are taken according to weight ratio
Particle diameter is crushed to after hydrochlorate mixing less than 0.2mm, additive is obtained.
6. the preparation method of the building gypsum plaster for being produced using bunt gypsum as claimed in claim 4, it is characterised in that to salt stone
The concrete operations that cream is washed are as follows：By bunt gypsum be put into for its weight 4-5 times and temperature to mix in 60-70 DEG C of water after
Mixture is obtained, is then added in mixture again and auxiliary agent and is stirred 30-35min, so that the Sodium Chloride contained in bunt gypsum is molten
Yu Shuizhong, so as to calcium sulphate dihydrate be separated with Sodium Chloride, then settles 30-35min, and top is contained into the solution row of Sodium Chloride
Go out, obtain calcium plaster.
7. the preparation method of the building gypsum plaster for being produced using bunt gypsum as claimed in claim 4, it is characterised in that the roasting
The concrete operations of burning are as follows：After gypsum powder is mixed with additive temperature be 85-105 DEG C under conditions of roasting 2-2.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107758.0A CN106587679B (en) | 2016-12-06 | 2016-12-06 | A kind of building gypsum plaster and preparation method thereof using bunt gypsum production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107758.0A CN106587679B (en) | 2016-12-06 | 2016-12-06 | A kind of building gypsum plaster and preparation method thereof using bunt gypsum production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106587679A true CN106587679A (en) | 2017-04-26 |
| CN106587679B CN106587679B (en) | 2019-02-26 |
Family
ID=58595071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107758.0A Active CN106587679B (en) | 2016-12-06 | 2016-12-06 | A kind of building gypsum plaster and preparation method thereof using bunt gypsum production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106587679B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341022A (en) * | 2020-11-24 | 2021-02-09 | 浙江壮硕建材有限公司 | Bottom layer plastering gypsum for regenerative building and preparation method thereof |
| CN112341023A (en) * | 2020-11-24 | 2021-02-09 | 浙江壮硕建材有限公司 | Surface plastering gypsum for regenerative building and preparation method thereof |
| WO2021104531A1 (en) * | 2019-12-27 | 2021-06-03 | 河南理工大学 | Composite reinforced gypsum material and method for preparation thereof |
| WO2022214897A1 (en) * | 2021-04-07 | 2022-10-13 | Knauf Gips Kg | Methods of removing chloride from gypsum having high level of chloride salt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221489C (en) * | 2002-03-15 | 2005-10-05 | 同济大学 | Process for preparing plastering gypsum |
| CN101475328B (en) * | 2009-01-20 | 2011-03-30 | 天津科技大学 | Gypsum rotating crystal excitant and use for producing construction gypsum from marine gypsum |
| JP2011168469A (en) * | 2010-02-17 | 2011-09-01 | Nbl Material Kk | Waste gypsum regeneration processed material |
| CN105271856A (en) * | 2015-11-04 | 2016-01-27 | 赵云龙 | Alpha-high strength gypsum production system and application thereof |
-
2016
- 2016-12-06 CN CN201611107758.0A patent/CN106587679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221489C (en) * | 2002-03-15 | 2005-10-05 | 同济大学 | Process for preparing plastering gypsum |
| CN101475328B (en) * | 2009-01-20 | 2011-03-30 | 天津科技大学 | Gypsum rotating crystal excitant and use for producing construction gypsum from marine gypsum |
| JP2011168469A (en) * | 2010-02-17 | 2011-09-01 | Nbl Material Kk | Waste gypsum regeneration processed material |
| CN105271856A (en) * | 2015-11-04 | 2016-01-27 | 赵云龙 | Alpha-high strength gypsum production system and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104531A1 (en) * | 2019-12-27 | 2021-06-03 | 河南理工大学 | Composite reinforced gypsum material and method for preparation thereof |
| CN112341022A (en) * | 2020-11-24 | 2021-02-09 | 浙江壮硕建材有限公司 | Bottom layer plastering gypsum for regenerative building and preparation method thereof |
| CN112341023A (en) * | 2020-11-24 | 2021-02-09 | 浙江壮硕建材有限公司 | Surface plastering gypsum for regenerative building and preparation method thereof |
| WO2022214897A1 (en) * | 2021-04-07 | 2022-10-13 | Knauf Gips Kg | Methods of removing chloride from gypsum having high level of chloride salt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106587679B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106587679A (en) | Building gypsum powder produced by salt gypsum and preparation method thereof | |
| CN104355584B (en) | A kind of cement-base infiltration crystallization type architectural waterproof material | |
| CN102925956B (en) | Method for preparing calcium sulfate hemihydrate whiskers by taking ardealite as main raw material | |
| CN103641392B (en) | A kind of formula of environmental protection brick and production method thereof | |
| CN112811858B (en) | Full-solid waste foam concrete and preparation method thereof | |
| CN108178567A (en) | A kind of alkali slag cement concrete of 3D printing and preparation method thereof | |
| CN104671716A (en) | Method for producing aerated concrete blocks with recycled micropowder | |
| CN106430273A (en) | Method for preparing anhydrous calcium sulfate filler by using phosphogypsum | |
| CN102167558A (en) | Excitant for exciting activity of industrial waste residues of phosphorite ore as well as preparation method and application thereof | |
| CN104891908A (en) | C60 micro-expansive and self-compacted concrete | |
| CN106830866A (en) | Water proof type Ardealite block and preparation method thereof | |
| CN103864455A (en) | Method for yellow phosphorus slag base aerated building blocks | |
| CN107098653A (en) | A kind of environment-friendlyroad road face brick and preparation method thereof | |
| CN103819218B (en) | Method for producing aerated concrete block from iron tailings | |
| CN107814537A (en) | The method for preparing non-sintered pavement bricks with the residual ash of aluminium lime-ash | |
| CN110204237A (en) | The production method of cement retarder | |
| CN107540285A (en) | A kind of method for preparing Abrasive glass dust building mortar using discarded oyster shell | |
| CN106587678B (en) | A kind of reclaimed gypsum powder and preparation method thereof for construction wall | |
| CN107573006A (en) | A kind of fiber reinforcement magnesium oxysulfide red mud plate and preparation method | |
| CN104211368B (en) | A kind of light-weight hollow-brick and preparation method thereof | |
| CN103693908A (en) | Inorganic coating mortar taking ore smelting slag as main raw material and preparation method thereof | |
| CN108569886A (en) | Alkaline residue aglite composite architectural materials and preparation method thereof | |
| CN101948332A (en) | Steam-curing-free foam concrete building block and preparation method thereof | |
| CN107445532A (en) | Over cure electrolytic manganese residues concrete and preparation method thereof | |
| CN107892539A (en) | The pavement bricks prepared with the latter secondary aluminium ash of fine grinding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |