CN108238607A - A kind of modification processing method of attapulgite - Google Patents
A kind of modification processing method of attapulgite Download PDFInfo
- Publication number
- CN108238607A CN108238607A CN201810097886.4A CN201810097886A CN108238607A CN 108238607 A CN108238607 A CN 108238607A CN 201810097886 A CN201810097886 A CN 201810097886A CN 108238607 A CN108238607 A CN 108238607A
- Authority
- CN
- China
- Prior art keywords
- attapulgite
- temperature
- spare
- processing method
- modifying 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
Abstract
The invention discloses a kind of modification processing methods of attapulgite, include the following steps：（1）Cleaning activation process,（2）High-temperature process,（3）Modifying agent preparation,（4）Immersion treatment,（5）It is dried.The present invention has carried out attapulgite special modification, effectively improves the activity on its surface, enhances the abilities such as its absorption, noise reduction, dispersion, fixation, and then improves the quality that its filling uses, great application value.
Description
Technical field
The invention belongs to new material working process technical fields, and in particular to a kind of modification processing method of attapulgite.
Background technology
Attapulgite is also known as palygorskite, is a kind of clay mineral of zeopan containing Shuifu County for having chain layer structure.It is concave-convex
Stick stone ore object almost various regions all over the world, but the mineral deposit proportion with industrial significance is little, is only limitted to the U.S., China, west
Class's tooth, France, Turkey, Senegal, South Africa, Australia, Brazil, Israel, Saudi Arabia, Switzerland, Britain, Russia
Ross（Irkutsk, Irkutsk）, it is Kirghizstan, Kazakhstan, Ukraine, Armenia, Azerbaijan, white
The states such as Russia, Nepal, according to incompletely statistics, about 1,400,000,000 tons of world's proved reserves.
Attapulgite is a kind of current common filler ingredient, is widely used in fields such as building, light industry, agricultural, weavings,
Such as it can be used as the filler of building coating, levelling agent, thickener, stabilizer, and performance is good, at low cost, can replace tradition
Fine particle calcium carbonate.Its coating application performance obtained is good, not sagging, saves the dosage of titanium dioxide, can also make the filler painted, wallboard material
The filler of material, production ceiling wall slab etc..Although attapulgite has good performance, because of little particle, hydrophily
Etc. factors easily cause dispersion accumulation with macromolecule raw material between compatibility it is bad the problems such as, cause fill using effect still have compared with
Big progress space needs further to improve.
Invention content
The purpose of the present invention is being directed to the problem of existing, a kind of modification processing method of attapulgite is provided.
The present invention is achieved by the following technical solutions：
A kind of modification processing method of attapulgite, includes the following steps：
（1）Clean activation process：
First attapulgite is immersed in the hydrochloric acid solution that mass fraction is 5 ~ 7% and handles 4 ~ 6min, then filters out and is immersed in quality
Handle 6 ~ 8min in the sodium hydroxide solution that score is 8 ~ 10%, finally filter out rinsed with deionized water dry for one time it is spare；
（2）High-temperature process：
By step（1）Treated, and attapulgite is put into progress high-temperature calcination processing in high-temperature calcination stove, controls the temperature of calcining
It is 900 ~ 940 DEG C to spend, and is taken out after 1 ~ 1.5h of processing spare；
（3）It is prepared by modifying agent：
A. lignoceric acid methyl esters and glycerine are put into reaction kettle jointly, then adds in the potassium hydroxide of its gross mass 2 ~ 4%, no
After 22 ~ 24min of disconnected stir process, then octyl phenol polyoxyethylene ether is added in into reaction kettle, while the temperature of reaction kettle is heated
70 ~ 74 DEG C are remained, and the pressure in reaction kettle is risen into 0.25 ~ 0.35MPa, is taken out after being stirred continuously 30 ~ 35min of processing
Modifier A is spare；
B. by tetradecyltrimethylammonium bromide and sodium cetanesulfonate according to weight ratio 1.9 ~ 2.1:1 is put into stirring jointly
In tank, the temperature that heating is kept stirring in tank is 35 ~ 38 DEG C, and modifying agent B is taken out to obtain after being stirred continuously 35 ~ 40min of mixed processing
It is spare；
（4）Immersion treatment：
A. by step（2）Treated, and attapulgite puts into step（3）It impregnates, is stirred continuously in modifier A made from operation a
It is filtered out after 50 ~ 55min of processing spare；
B. will operation a treated that attapulgite puts into step（3）It is impregnated in modifying agent B made from operation b, is stirred continuously place
It is filtered out after 35 ~ 40min of reason spare；
（5）It is dried：
By step（4）Treated, and attapulgite is put into taking-up after 3 ~ 4h of drying process in drying box.
Further, step（3）The molar ratio for operating lignoceric acid methyl esters and the glycerine blending described in a is 2.6 ~ 2.8:1.
Further, step（3）The addition for operating the octyl phenol polyoxyethylene ether described in a is the total matter of lignoceric acid methyl esters
The 28 ~ 30% of amount.
Further, step（4）It is 58 ~ 63 that heating, which keeps the temperature of modifier A, during operating the immersion treatment described in a
℃。
Further, step（4）It is 78 ~ 83 that heating, which keeps the temperature of modifying agent B, during operating the immersion treatment described in b
℃。
Further, step（5）Described in drying process when control drying box in temperature be 110 ~ 120 DEG C.
Then the present invention has carried out it special modification using attapulgite as the matrix composition of filler, wherein first
Two kinds of different modifier As of characteristic and modifying agent B are prepared, wherein modifier A is with lignoceric acid methyl esters, glycerine, octylphenol polyethylene
A kind of haze tallow acid glyceride polyoxyethylene ether activator solution made from the blending of ethylene oxide ether, by the use of it as matrix dressing agent to recessed
Convex stick soil has carried out a modification, has reconciled the amphipathic property of attapulgite's surface, and base has been established for subsequent modification
Plinth, modifying agent B are made with cationic tetradecyltrimethylammonium bromide and anionic sodium cetanesulfonate compounding, are used
It has carried out twice-modified processing as dressing agent is improved to attapulgite, and the reaction for further improving attapulgite's surface is lived
Property and the compatibility between high molecular material matrix, while also improve the absorption, noise reduction, crystallized ability of attapulgite, increase
The quality characteristic that strong filling uses.
The present invention has the following advantages compared with prior art：
The present invention has carried out attapulgite special modification, effectively improves the activity on its surface, enhance its absorption,
The abilities such as noise reduction, dispersion, fixation, and then improve the quality that its filling uses, great application value.
Specific embodiment
Embodiment 1
A kind of modification processing method of attapulgite, includes the following steps：
（1）Clean activation process：
First attapulgite is immersed in the hydrochloric acid solution that mass fraction is 5% and handles 4min, then filters out and is immersed in mass fraction
To handle 6min in 8% sodium hydroxide solution, finally filter out rinsed with deionized water dry for one time it is spare；
（2）High-temperature process：
By step（1）Treated, and attapulgite is put into progress high-temperature calcination processing in high-temperature calcination stove, controls the temperature of calcining
It is 900 DEG C to spend, and is taken out after processing 1h spare；
（3）It is prepared by modifying agent：
A. lignoceric acid methyl esters and glycerine are put into reaction kettle jointly, then adds in the potassium hydroxide of its gross mass 2%, constantly
After stir process 22min, then octyl phenol polyoxyethylene ether is added in into reaction kettle, while the temperature heating of reaction kettle is remained
70 DEG C, and the pressure in reaction kettle is risen into 0.25MPa, be stirred continuously after processing 30min take out modifier A is spare；
B. by tetradecyltrimethylammonium bromide and sodium cetanesulfonate according to weight ratio 1.9:1 is put into agitator tank jointly
Interior, it is 35 DEG C that heating, which is kept stirring temperature in tank, be stirred continuously after mixed processing 35min take out modifying agent B is spare；
（4）Immersion treatment：
A. by step（2）Treated, and attapulgite puts into step（3）It impregnates, is stirred continuously in modifier A made from operation a
It is filtered out after processing 50min spare；
B. will operation a treated that attapulgite puts into step（3）It is impregnated in modifying agent B made from operation b, is stirred continuously place
It is filtered out after reason 35min spare；
（5）It is dried：
By step（4）Treated, and attapulgite is put into taking-up after drying process 3h in drying box.
Further, step（3）The molar ratio for operating lignoceric acid methyl esters and the glycerine blending described in a is 2.6:1.
Further, step（3）The addition for operating the octyl phenol polyoxyethylene ether described in a is the total matter of lignoceric acid methyl esters
The 28% of amount.
Further, step（4）It is 58 DEG C that heating, which keeps the temperature of modifier A, during operating the immersion treatment described in a.
Further, step（4）It is 78 DEG C that heating, which keeps the temperature of modifying agent B, during operating the immersion treatment described in b.
Further, step（5）Described in drying process when control drying box in temperature be 110 DEG C.
Embodiment 2
A kind of modification processing method of attapulgite, includes the following steps：
（1）Clean activation process：
First attapulgite is immersed in the hydrochloric acid solution that mass fraction is 6% and handles 5min, then filters out and is immersed in mass fraction
To handle 7min in 9% sodium hydroxide solution, finally filter out rinsed with deionized water dry for one time it is spare；
（2）High-temperature process：
By step（1）Treated, and attapulgite is put into progress high-temperature calcination processing in high-temperature calcination stove, controls the temperature of calcining
It is 920 DEG C to spend, and is taken out after processing 1.2h spare；
（3）It is prepared by modifying agent：
A. lignoceric acid methyl esters and glycerine are put into reaction kettle jointly, then adds in the potassium hydroxide of its gross mass 3%, constantly
After stir process 23min, then octyl phenol polyoxyethylene ether is added in into reaction kettle, while the temperature heating of reaction kettle is remained
72 DEG C, and the pressure in reaction kettle is risen into 0.3MPa, be stirred continuously after processing 33min take out modifier A is spare；
B. by tetradecyltrimethylammonium bromide and sodium cetanesulfonate according to weight ratio 2.0:1 is put into agitator tank jointly
Interior, it is 37 DEG C that heating, which is kept stirring temperature in tank, be stirred continuously after mixed processing 38min take out modifying agent B is spare；
（4）Immersion treatment：
A. by step（2）Treated, and attapulgite puts into step（3）It impregnates, is stirred continuously in modifier A made from operation a
It is filtered out after processing 53min spare；
B. will operation a treated that attapulgite puts into step（3）It is impregnated in modifying agent B made from operation b, is stirred continuously place
It is filtered out after reason 38min spare；
（5）It is dried：
By step（4）Treated, and attapulgite is put into taking-up after drying process 3.5h in drying box.
Further, step（3）The molar ratio for operating lignoceric acid methyl esters and the glycerine blending described in a is 2.7:1.
Further, step（3）The addition for operating the octyl phenol polyoxyethylene ether described in a is the total matter of lignoceric acid methyl esters
The 29% of amount.
Further, step（4）It is 60 DEG C that heating, which keeps the temperature of modifier A, during operating the immersion treatment described in a.
Further, step（4）It is 80 DEG C that heating, which keeps the temperature of modifying agent B, during operating the immersion treatment described in b.
Further, step（5）Described in drying process when control drying box in temperature be 115 DEG C.
Embodiment 3
A kind of modification processing method of attapulgite, includes the following steps：
（1）Clean activation process：
First attapulgite is immersed in the hydrochloric acid solution that mass fraction is 7% and handles 6min, then filters out and is immersed in mass fraction
To handle 8min in 10% sodium hydroxide solution, finally filter out rinsed with deionized water dry for one time it is spare；
（2）High-temperature process：
By step（1）Treated, and attapulgite is put into progress high-temperature calcination processing in high-temperature calcination stove, controls the temperature of calcining
It is 940 DEG C to spend, and is taken out after processing 1.5h spare；
（3）It is prepared by modifying agent：
A. lignoceric acid methyl esters and glycerine are put into reaction kettle jointly, then adds in the potassium hydroxide of its gross mass 4%, constantly
After stir process 24min, then octyl phenol polyoxyethylene ether is added in into reaction kettle, while the temperature heating of reaction kettle is remained
74 DEG C, and the pressure in reaction kettle is risen into 0.35MPa, be stirred continuously after processing 35min take out modifier A is spare；
B. by tetradecyltrimethylammonium bromide and sodium cetanesulfonate according to weight ratio 2.1:1 is put into agitator tank jointly
Interior, it is 38 DEG C that heating, which is kept stirring temperature in tank, be stirred continuously after mixed processing 40min take out modifying agent B is spare；
（4）Immersion treatment：
A. by step（2）Treated, and attapulgite puts into step（3）It impregnates, is stirred continuously in modifier A made from operation a
It is filtered out after processing 55min spare；
B. will operation a treated that attapulgite puts into step（3）It is impregnated in modifying agent B made from operation b, is stirred continuously place
It is filtered out after reason 40min spare；
（5）It is dried：
By step（4）Treated, and attapulgite is put into taking-up after drying process 4h in drying box.
Further, step（3）The molar ratio for operating lignoceric acid methyl esters and the glycerine blending described in a is 2.8:1.
Further, step（3）The addition for operating the octyl phenol polyoxyethylene ether described in a is the total matter of lignoceric acid methyl esters
The 30% of amount.
Further, step（4）It is 63 DEG C that heating, which keeps the temperature of modifier A, during operating the immersion treatment described in a.
Further, step（4）It is 83 DEG C that heating, which keeps the temperature of modifying agent B, during operating the immersion treatment described in b.
Further, step（5）Described in drying process when control drying box in temperature be 120 DEG C.
Comparative example 1
This comparative example 1 compared with Example 2, eliminates step（3）Modifying agent preparation manipulation a and step（4）At immersion
The corresponding processing operations of reason operation a, method and step all same in addition to this.
Comparative example 2
This comparative example 2 compared with Example 2, eliminates step（3）Modifying agent preparation manipulation b and step（4）At immersion
The corresponding processing operations of reason operation b, method and step all same in addition to this.
Comparative example 3
This comparative example 3 compared with Example 2, by step（4）Operation a and operation b process sequences in immersion treatment are carried out
It is reverse, method and step all same in addition to this.
Control group
Existing Surface Organic Modification of Attapugite processing method, specifically first to attapulgite carry out calcination processing, then by ethyl alcohol,
Silane coupling agent kh550, water are according to weight ratio 1:4:13 carry out being mixed to prepare treatment fluid, and the attapulgite after calcining is immersed in
In treatment fluid, filtered out after ultrasonic disperse processing 30min, drying.
In order to compare effect of the present invention, select with a collection of attapulgite as experimental raw, then respectively with above-mentioned implementation
Example 2, comparative example 1, comparative example 2, comparative example 3, the corresponding method of control group are modified processing, complete laggard
Row attribute test, specific correction data are as shown in table 1 below：
Table 1
| Specific surface area（m2g-1） | Sound-absorption coefficient | |
| Embodiment 2 | 12.4 | 0.63 |
| Comparative example 1 | 10.0 | 0.50 |
| Comparative example 2 | 10.4 | 0.53 |
| Comparative example 3 | 10.9 | 0.58 |
| Control group | 9.1 | 0.46 |
The specific surface area of the present invention treated attapulgite, absorption, acoustic damping characteristic have fine enhancing it can be seen from upper table 1,
Surface-active etc. is corresponding with good improvement, attapulgite modified popularizing value higher that treated.To above-mentioned each
Attapulgite eliminated in structural analysis discovery comparative example 1 processing of modifier A after group process, after losing
The attachment of continuous modification, complex matrix, reduce treatment effect；And comparative example 2 does not carry out follow-up compound be modified again then
Processing, effect promoting is also limited, and comparative example 3 is because modifying agent B component occupies adsorption site, causes modifier A, modification
The ingredient of agent B fails effective compound fixation, equally causes declining to a great extent for performance.
Claims (6)
1. a kind of modification processing method of attapulgite, which is characterized in that include the following steps：
（1）Clean activation process：
First attapulgite is immersed in the hydrochloric acid solution that mass fraction is 5 ~ 7% and handles 4 ~ 6min, then filters out and is immersed in quality
Handle 6 ~ 8min in the sodium hydroxide solution that score is 8 ~ 10%, finally filter out rinsed with deionized water dry for one time it is spare；
（2）High-temperature process：
By step（1）Treated, and attapulgite is put into progress high-temperature calcination processing in high-temperature calcination stove, controls the temperature of calcining
It is 900 ~ 940 DEG C to spend, and is taken out after 1 ~ 1.5h of processing spare；
（3）It is prepared by modifying agent：
A. lignoceric acid methyl esters and glycerine are put into reaction kettle jointly, then adds in the potassium hydroxide of its gross mass 2 ~ 4%, no
After 22 ~ 24min of disconnected stir process, then octyl phenol polyoxyethylene ether is added in into reaction kettle, while the temperature of reaction kettle is heated
70 ~ 74 DEG C are remained, and the pressure in reaction kettle is risen into 0.25 ~ 0.35MPa, is taken out after being stirred continuously 30 ~ 35min of processing
Modifier A is spare；
B. by tetradecyltrimethylammonium bromide and sodium cetanesulfonate according to weight ratio 1.9 ~ 2.1:1 is put into stirring jointly
In tank, the temperature that heating is kept stirring in tank is 35 ~ 38 DEG C, and modifying agent B is taken out to obtain after being stirred continuously 35 ~ 40min of mixed processing
It is spare；
（4）Immersion treatment：
A. by step（2）Treated, and attapulgite puts into step（3）It impregnates, is stirred continuously in modifier A made from operation a
It is filtered out after 50 ~ 55min of processing spare；
B. will operation a treated that attapulgite puts into step（3）It is impregnated in modifying agent B made from operation b, is stirred continuously place
It is filtered out after 35 ~ 40min of reason spare；
（5）It is dried：
By step（4）Treated, and attapulgite is put into taking-up after 3 ~ 4h of drying process in drying box.
A kind of 2. modification processing method of attapulgite according to claim 1, which is characterized in that step（3）It operates in a
The lignoceric acid methyl esters and the molar ratio of glycerine blending are 2.6 ~ 2.8:1.
A kind of 3. modification processing method of attapulgite according to claim 1, which is characterized in that step（3）It operates in a
The addition of the octyl phenol polyoxyethylene ether is the 28 ~ 30% of lignoceric acid methyl esters gross mass.
A kind of 4. modification processing method of attapulgite according to claim 1, which is characterized in that step（4）It operates in a
It is 58 ~ 63 DEG C that heating, which keeps the temperature of modifier A, during the immersion treatment.
A kind of 5. modification processing method of attapulgite according to claim 1, which is characterized in that step（4）It operates in b
It is 78 ~ 83 DEG C that heating, which keeps the temperature of modifying agent B, during the immersion treatment.
A kind of 6. modification processing method of attapulgite according to claim 1, which is characterized in that step（5）Described in
Drying process when control drying box in temperature be 110 ~ 120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097886.4A CN108238607A (en) | 2018-01-31 | 2018-01-31 | A kind of modification processing method of attapulgite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097886.4A CN108238607A (en) | 2018-01-31 | 2018-01-31 | A kind of modification processing method of attapulgite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108238607A true CN108238607A (en) | 2018-07-03 |
Family
ID=62698844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810097886.4A Withdrawn CN108238607A (en) | 2018-01-31 | 2018-01-31 | A kind of modification processing method of attapulgite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108238607A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824037A (en) * | 2018-08-09 | 2018-11-16 | 界首市恒仁服饰有限公司 | A kind of processing method enhancing ramee colouring power |
| CN108852906A (en) * | 2018-07-09 | 2018-11-23 | 安徽衣露士生物科技有限公司 | A kind of hand cleanser that dirt-removing power is strong |
| CN109401130A (en) * | 2018-11-15 | 2019-03-01 | 肥西县创玺建材科技有限公司 | A kind of high-strength corrosion-resisting PVC plastic |
| CN115772322A (en) * | 2021-09-06 | 2023-03-10 | 大禾科技发展(南京)有限公司 | Preparation method of degradable preservative film |
| CN116631675A (en) * | 2023-06-15 | 2023-08-22 | 安徽远征电缆科技有限公司 | Mobile abrasion-resistant and drag-resistant shielded cable with large cross section and flame resistance |
-
2018
- 2018-01-31 CN CN201810097886.4A patent/CN108238607A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852906A (en) * | 2018-07-09 | 2018-11-23 | 安徽衣露士生物科技有限公司 | A kind of hand cleanser that dirt-removing power is strong |
| CN108824037A (en) * | 2018-08-09 | 2018-11-16 | 界首市恒仁服饰有限公司 | A kind of processing method enhancing ramee colouring power |
| CN109401130A (en) * | 2018-11-15 | 2019-03-01 | 肥西县创玺建材科技有限公司 | A kind of high-strength corrosion-resisting PVC plastic |
| CN115772322A (en) * | 2021-09-06 | 2023-03-10 | 大禾科技发展(南京)有限公司 | Preparation method of degradable preservative film |
| CN116631675A (en) * | 2023-06-15 | 2023-08-22 | 安徽远征电缆科技有限公司 | Mobile abrasion-resistant and drag-resistant shielded cable with large cross section and flame resistance |
| CN116631675B (en) * | 2023-06-15 | 2024-03-15 | 安徽远征传导科技股份有限公司 | Mobile abrasion-resistant and drag-resistant shielded cable with large cross section and flame resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108238607A (en) | A kind of modification processing method of attapulgite | |
| CN107804989A (en) | A kind of bentonite filler for construction material manufacture | |
| CN105084930B (en) | A kind of preparation method of the modified fluorine gypsum powder for brushing gypsum | |
| CN105669133B (en) | A kind of waterproof mortar using inorganic mineral as main stuffing | |
| CN109251058A (en) | A kind of ceramic tile antilubricant and preparation method thereof | |
| CN104229854A (en) | Calcium chloride solution producing method | |
| CN105671627B (en) | A method of high-purity dihydrate gypsum whisker is prepared using industrial by-products calcium chloride | |
| CN107324744A (en) | A kind of environment-friendlyroad road face brick and preparation method thereof | |
| CN109534852A (en) | A kind of osmosis type liquid hardening agent and preparation method thereof | |
| CN109822700A (en) | A method of with the composite modified processing bamboo wood of earth solution-glass fibre | |
| CN106904860A (en) | A kind of nano inorganic reinforcing agent | |
| CN108706603A (en) | A kind of nano calcium hydroxide/nano kaoline nanocomposite and preparation method | |
| CN109650834A (en) | A kind of processing method of antiseepage type aerated bricks | |
| CN107096497A (en) | A kind of preparation method of high activity attapulgite | |
| CN110272258A (en) | A kind of high strong water resistant magnesia oxychloride cement and preparation method thereof | |
| CN107235670A (en) | A kind of diatomite heat insulating wall material and preparation method thereof | |
| CN103553293B (en) | Deep dehydration method for solidifying fresh sludge through landfill stabilized sludge incineration residue | |
| CN108484214A (en) | A kind of preparation method of energy-saving wall material | |
| CN108164138A (en) | The method for innocent treatment of medical abraum salt | |
| CN108299935A (en) | A kind of preparation method of the filler of reinforced resin coating intensity | |
| CN108384381A (en) | A kind of preparation method of heatproof noise reduction architectural decoration coating material | |
| CN104261409A (en) | Method for preparing silicon carbide powder serving as organic composite material reinforcement | |
| CN104176957B (en) | A kind of method of redispersable latex powder modification fluorgypsum | |
| CN114163180B (en) | Anti-skid water permeable brick and preparation method thereof | |
| CN105731830A (en) | Preparation method of hydroxyapatite-modified glass fiber |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180703 |