CN106732466A - A kind of adsorption reaction type formaldehyde eliminating agent and preparation method thereof - Google Patents

A kind of adsorption reaction type formaldehyde eliminating agent and preparation method thereof Download PDF

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Publication number
CN106732466A
CN106732466A CN201710107338.0A CN201710107338A CN106732466A CN 106732466 A CN106732466 A CN 106732466A CN 201710107338 A CN201710107338 A CN 201710107338A CN 106732466 A CN106732466 A CN 106732466A
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parts
formaldehyde
ticl
reaction
preparation
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戴新伟
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Anhui Eakly Environmental Engineering Co Ltd
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Anhui Eakly Environmental Engineering Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26Synthetic macromolecular compounds
    • B01J20/265Synthetic macromolecular compounds modified or post-treated polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/72Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8668Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • B01J31/38Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39Photocatalytic properties

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention discloses a kind of adsorption reaction type formaldehyde eliminating agent, it is made up of the raw material of following weight portion:6 15 parts of diethanol amine, 56 84 parts of methyl alcohol, 12 28 parts of methyl acrylate, 37 52 parts of montmorillonite, 31 42 parts of trimethylolpropane, 38 parts of p-methyl benzenesulfonic acid, 58 84 parts of diethyl malonate, 27 parts of Anhydrous potassium carbonate, TiCl4 21 36 parts, appropriate hydrochloric acid solution distills appropriate amount of water, appropriate absolute ethyl alcohol.The present invention utilizes the layer structure of montmorillonite, realize the stable curing to titanium deoxide catalyst, improve the photocatalytic degradation efficiency of PARA FORMALDEHYDE PRILLS(91,95), hyperbranched polyurethane intercalation modifying montmorillonite is utilized afterwards, the physical absorption of formaldehyde and chemical reaction are combined, finally formaldehyde is changed into nontoxic, tasteless substance, accomplish to eliminate the purpose of formaldehyde in absorption, reach the effect of quick, lasting purify air.

Description

A kind of adsorption reaction type formaldehyde eliminating agent and preparation method thereof
Technical field
The present invention relates to a kind of formaldehyde scavenger, and in particular to a kind of adsorption reaction type formaldehyde eliminating agent and its preparation side Method.
Background technology
Formaldehyde is a kind of extremely strong bactericide, is widely used in industrial production.Formaldehyde is manufacture synthetic resin, paint, modeling The raw material of material and staple fibre, is the weight of wood-based panel industry manufacture urea-formaldehyde resin adhesive, melamine resin adehsive and phenolic resin glue Want raw material.Formaldehyde is more highly toxic material, and formaldehyde is in second on China's toxic chemical priority acccess control list.Formaldehyde It is defined as carcinogenic by the World Health Organization and causes deformed material, be generally acknowledged allergen, is also prominent potential strong cause Become one of thing.
At present, the main method that people eliminate formaldehyde in indoor air pollution is to use formaldehyde eliminating agent.But existing market The common formaldehyde eliminating agent product of upper sale formaldehyde elimination amount within a certain period of time is limited and persistence of effect is poor, leads to The term of validity of normal these formaldehyde eliminating agents only has several days time.
Wang Xuechuan, Yuan Xuzheng et al. are at it《The synthesis and application of active methylene group class dissaving polymer methanal trapping agent》 It is that raw material is obtained AB by Michael addition reactions with diethanol amine (DEA) and methyl acrylate (MA) in one text2Type monomer, Under Catalyzed by p-Toluenesulfonic Acid, there is ester exchange reaction with trimethylolpropane, be obtained a kind of superbrnaching end-hydroxy it is poly- (amine- Ester), afterwards and diethyl malonate, terminal groups modification is carried out to terminal hydroxy group hyperbranched poly (amine -ester) by ester exchange reaction, so that Active methylene group class dissaving polymer (HPAM) is prepared, formaldehyde can be effectively caught, but its acquisition procedure is slower.
Montmorillonite (MMT) is the two-dimensional layer silicate mineral that a class interlayer has exchangeable cations, with good swollen Swollen property, adsorptivity and cation exchange property, favourable bar is provided for many intercalated materials carry out the compound insertion reaction of interlayer Part.Therefore can be realized using montmorillonite it is immobilized to stablizing for catalyst, while can be used to formaldehyde adsorption, to reach purify air Purpose.
The content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided a kind of adsorption reaction type formaldehyde eliminating agent and preparation method thereof.
A kind of adsorption reaction type formaldehyde eliminating agent, is made up of the raw material of following weight portion:Diethanol amine 6-15 parts, methyl alcohol 56-84 parts, methyl acrylate 12-28 parts, montmorillonite 37-52 parts, trimethylolpropane 31-42 parts, p-methyl benzenesulfonic acid 3-8 parts, Diethyl malonate 58-84 parts, Anhydrous potassium carbonate 2-7 parts, TiCl4 21-36 parts, appropriate hydrochloric acid solution distills appropriate amount of water, anhydrous Appropriate amount of ethanol.
Comprise the following steps that:
(1)Prepare TiCl4Pillaring agent:
By TiCl4It is added in hydrochloric acid solution, with distilled water diluting to Ti4+0.8mol/L and 0.2- are respectively with HCl concentration 0.4mol/L, obtains final product TiCl4Pillaring agent;
(2)Montmorillonite is dispersed in distilled water, above-mentioned TiCl is slowly added dropwise4Pillaring agent, stirring reaction 4-5 hours, adjusts pH value To 2-3, stirring reaction 3-5 hours, centrifugation afterwards with absolute ethanol washing, suction filtration, was washed, dried, at 500 DEG C afterwards Lower calcination product 45-70 minutes, through cooling, grinding, obtains final product Titania Pillared Montmorillonites;
(3)The synthesis of reaction monomers:
Add diethanol amine and methyl alcohol, mixture to be stirred at room temperature to diethanol amine after being completely dissolved in there-necked flask, delay Slow that methyl acrylate is added dropwise, charging is warming up to 30-40 DEG C insulation reaction 3-5 hours, then vacuumizes removing methyl alcohol, obtains after finishing To grease;
(4)The preparation of superbrnaching end-hydroxy Polyurethane modified montmorillonoid:
Step is added in there-necked flask(2)Titania Pillared Montmorillonites, trimethylolpropane and p-methyl benzenesulfonic acid, stirring are mixed Compound 10-25 minutes, 110-120 DEG C is warming up to, starts to stir and be added dropwise step(3)Reaction monomers, 110-130 DEG C of reaction 30- After 50 minutes, continuation is reacted in being transferred to Rotary Evaporators, untill system is bloated there is no bubble, obtains terminal hydroxy group over-expense Change Polyurethane modified montmorillonoid;
(5)Diethyl malonate and catalyst Anhydrous potassium carbonate are added in there-necked flask, after stirring, is to slowly warm up to 95-105 DEG C, start to be slowly added to step(4)Product, charging is finished latter insulation reaction 4-5 hours, then vacuum distillation, takes out true Vacancy is managed, and is obtained final product.
Wherein, the concentration of described hydrochloric acid solution is 2.0mol/L.
Wherein, step(1)Prepare TiCl4During pillaring agent, Ti:HCl mol ratios are 2:1.
Wherein, step(2)Middle drying condition is drying temperature at 65-73 DEG C, drying time 3-6 hours.
Compared with prior art, the present invention has advantages below:
(1)The present invention is prepared for superbrnaching end-hydroxy Polyurethane intercalation modifying montmorillonite, reacts right with diethyl malonate afterwards Polymer carries out blocking modification, and hyperbranched polyurethane is a three-dimensional molecular structure for nearly ball-type, exists in the inside of molecule empty Chamber, PARA FORMALDEHYDE PRILLS(91,95) small molecule has certain suction-operated, while using the absorption property of montmorillonite, by formaldehyde fast Acquisition, absorption On remover, in addition because its a large amount of active methylene group functional group contained can react with formaldehyde, first can be effectively reduced The content of aldehyde.
(2)The present invention realizes the stable curing to titanium deoxide catalyst using the layer structure of montmorillonite, improves to first The photocatalytic degradation efficiency of aldehyde, the physical absorption of formaldehyde and chemical reaction are combined, and finally change into formaldehyde nontoxic, tasteless Material, accomplishes to eliminate the purpose of formaldehyde in absorption, the effect of quick, lasting purify air is reached, to sky when actually used Other poisonous odor gas in gas also have stronger suction-operated, and practical effect is good.
Specific embodiment
A kind of adsorption reaction type formaldehyde eliminating agent, is made up of the raw material of following weight portion:11 parts of diethanol amine, methyl alcohol 63 Part, 24 parts of methyl acrylate, 42 parts of montmorillonite, 37 parts of trimethylolpropane, 4 parts of p-methyl benzenesulfonic acid, 76 parts of diethyl malonate, 6 parts of Anhydrous potassium carbonate, TiCl4 26 parts, appropriate hydrochloric acid solution distills appropriate amount of water, appropriate absolute ethyl alcohol.
Comprise the following steps that:
(1)Prepare TiCl4Pillaring agent:
By TiCl4It is added in hydrochloric acid solution, with distilled water diluting to Ti4+0.8mol/L and 0.3mol/ are respectively with HCl concentration L, obtains final product TiCl4Pillaring agent;
(2)Montmorillonite is dispersed in distilled water, above-mentioned TiCl is slowly added dropwise4Pillaring agent, stirring reaction 4 hours adjusts pH value extremely 2.5, stirring reaction 4 hours, afterwards centrifugation with absolute ethanol washing, suction filtration, is washed, dried afterwards, is forged at 500 DEG C Burn product 60 minutes, through cooling, grinding, obtain final product Titania Pillared Montmorillonites;
(3)The synthesis of reaction monomers:
Add diethanol amine and methyl alcohol, mixture to be stirred at room temperature to diethanol amine after being completely dissolved in there-necked flask, delay Slow to be added dropwise methyl acrylate, charging is warming up to 35 DEG C of insulation reactions 4 hours after finishing, then vacuumize removing methyl alcohol, obtains oil Shape thing;
(4)The preparation of superbrnaching end-hydroxy Polyurethane modified montmorillonoid:
Step is added in there-necked flask(2)Titania Pillared Montmorillonites, trimethylolpropane and p-methyl benzenesulfonic acid, stirring are mixed Compound 20 minutes, is warming up to 115 DEG C, starts to stir and be added dropwise step(3)Reaction monomers, after 120 DEG C are reacted 40 minutes, are transferred to Continue to react in Rotary Evaporators, untill system is bloated there is no bubble, obtain the ester modified illiteracy of superbrnaching end-hydroxy polyamine De- soil;
(5)Diethyl malonate and catalyst Anhydrous potassium carbonate are added in there-necked flask, after stirring, is to slowly warm up to 100 DEG C, start to be slowly added to step(4)Product, charging finishes rear insulation reaction 4 hours, and then vacuum distillation vacuumizes place Reason, obtains final product.
Wherein, the concentration of described hydrochloric acid solution is 2.0mol/L.
Wherein, step(1)Prepare TiCl4During pillaring agent, Ti:HCl mol ratios are 2:1.
Wherein, step(2)Middle drying condition is drying temperature at 65-73 DEG C, drying time 3-6 hours.

Claims (5)

1. a kind of adsorption reaction type formaldehyde eliminating agent, it is characterised in that be made up of the raw material of following weight portion:Diethanol amine 6-15 Part, methyl alcohol 56-84 parts, methyl acrylate 12-28 parts, montmorillonite 37-52 parts, trimethylolpropane 31-42 parts, p-methyl benzenesulfonic acid 3-8 parts, diethyl malonate 58-84 parts, Anhydrous potassium carbonate 2-7 parts, TiCl4 21-36 parts, appropriate hydrochloric acid solution, distilled water is fitted Amount, appropriate absolute ethyl alcohol.
2. the preparation method of a kind of adsorption reaction type formaldehyde eliminating agent according to claims 1, it is characterised in that specific Step is as follows:
(1)Prepare TiCl4Pillaring agent:
By TiCl4It is added in hydrochloric acid solution, with distilled water diluting to Ti4+0.8mol/L and 0.2- are respectively with HCl concentration 0.4mol/L, obtains final product TiCl4Pillaring agent;
(2)Montmorillonite is dispersed in distilled water, above-mentioned TiCl is slowly added dropwise4Pillaring agent, stirring reaction 4-5 hours, adjusts pH value extremely 2-3, stirring reaction 3-5 hours, centrifugation afterwards with absolute ethanol washing, suction filtration, was washed, dried, at 500 DEG C afterwards Calcination product 45-70 minutes, through cooling, grinding, obtain final product Titania Pillared Montmorillonites;
(3)The synthesis of reaction monomers:
Add diethanol amine and methyl alcohol, mixture to be stirred at room temperature to diethanol amine after being completely dissolved in there-necked flask, delay Slow that methyl acrylate is added dropwise, charging is warming up to 30-40 DEG C insulation reaction 3-5 hours, then vacuumizes removing methyl alcohol, obtains after finishing To grease;
(4)The preparation of superbrnaching end-hydroxy Polyurethane modified montmorillonoid:
Step is added in there-necked flask(2)Titania Pillared Montmorillonites, trimethylolpropane and p-methyl benzenesulfonic acid, stirring are mixed Compound 10-25 minutes, 110-120 DEG C is warming up to, starts to stir and be added dropwise step(3)Reaction monomers, 110-130 DEG C of reaction 30- After 50 minutes, continuation is reacted in being transferred to Rotary Evaporators, untill system is bloated there is no bubble, obtains terminal hydroxy group over-expense Change Polyurethane modified montmorillonoid;
(5)Diethyl malonate and catalyst Anhydrous potassium carbonate are added in there-necked flask, after stirring, is to slowly warm up to 95-105 DEG C, start to be slowly added to step(4)Product, charging is finished latter insulation reaction 4-5 hours, then vacuum distillation, takes out true Vacancy is managed, and is obtained final product.
3. a kind of preparation method of the adsorption reaction type formaldehyde eliminating agent according to claims 1,2, it is characterised in that institute The concentration of the hydrochloric acid solution stated is 2.0mol/L.
4. a kind of preparation method of the adsorption reaction type formaldehyde eliminating agent according to claims 2, it is characterised in that step (1)Prepare TiCl4During pillaring agent, Ti:HCl mol ratios are 2:1.
5. a kind of preparation method of the adsorption reaction type formaldehyde eliminating agent according to claims 2, it is characterised in that step (2)Middle drying condition is drying temperature at 65-73 DEG C, drying time 3-6 hours.
CN201710107338.0A 2017-02-27 2017-02-27 A kind of adsorption reaction type formaldehyde eliminating agent and preparation method thereof Pending CN106732466A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108837807A (en) * 2018-06-27 2018-11-20 王秀玲 A kind of material for air purification and preparation method thereof for atmosphere pollution

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1724358A (en) * 2004-07-22 2006-01-25 中国地质大学(北京) Key tech. for preparing titanium dioxide post-ylene-montmorilloid by titanium tetrachloride hydrolysis process
CN102249369A (en) * 2011-04-29 2011-11-23 中国地质大学(武汉) Pumice-carried cyanobacteria scavenger capable of floating on water surface
CN103933930A (en) * 2014-04-21 2014-07-23 康美药业股份有限公司 Application of nano pillared montmorillonite in preparing air purifying agent and preparation method of nano pillared montmorillonite
CN105688798A (en) * 2016-01-29 2016-06-22 常州达奥新材料科技有限公司 Preparation method of photosensitive high-thermal-stability pillar bearing clay material
CN106111143A (en) * 2016-06-27 2016-11-16 郭迎庆 A kind of preparation method of near infrared light catalysis column clay catalyst

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1724358A (en) * 2004-07-22 2006-01-25 中国地质大学(北京) Key tech. for preparing titanium dioxide post-ylene-montmorilloid by titanium tetrachloride hydrolysis process
CN102249369A (en) * 2011-04-29 2011-11-23 中国地质大学(武汉) Pumice-carried cyanobacteria scavenger capable of floating on water surface
CN103933930A (en) * 2014-04-21 2014-07-23 康美药业股份有限公司 Application of nano pillared montmorillonite in preparing air purifying agent and preparation method of nano pillared montmorillonite
CN105688798A (en) * 2016-01-29 2016-06-22 常州达奥新材料科技有限公司 Preparation method of photosensitive high-thermal-stability pillar bearing clay material
CN106111143A (en) * 2016-06-27 2016-11-16 郭迎庆 A kind of preparation method of near infrared light catalysis column clay catalyst

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王雪川 等: "活泼亚甲基类超支化聚合物甲醛捕获剂的合成及应用", 《中国皮革》 *
董梦琴: "纳米二氧化钛/蒙脱土复合材料的制备及其催化活性研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108837807A (en) * 2018-06-27 2018-11-20 王秀玲 A kind of material for air purification and preparation method thereof for atmosphere pollution

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Application publication date: 20170531