The invention provides a formaldehyde elimination agent and a preparation method thereof. The formaldehyde elimination agent comprises a carrier and active components, wherein the carrier is macroporous silica gel with BET (Specific Surface Area) larger than 300 square meters/gram and an average pore size larger than 10 nanometers; the active components are manganese oxides, alkali metal oxides or carbonates and account for 1-20 percent of total weight in terms of metals; and the ratio of the amounts of substances of manganese and alkali metal elements is 1:10-10:1. The formaldehyde elimination agent provided by the invention has the advantages of easiness in preparation, low cost, good using effect, easiness in regeneration after inactivation, good application prospect and great reduction of the using cost of elimination agents.

Formaldehyde elimination agent and preparation method thereof

The invention discloses a method for preparing super-absorbent resin through inverse suspension polymerization. The method comprises the following steps: aminoalcohol compounds are supported or not supported by the carrier and the product is used to remove free formaldehyde in the air. The used formaldehyde remover is non-toxic, is lower in dosage and in cost, and can not cause secondary pollution; and the removing speed of free formaldehyde is high, and the combination of aminoalcohol compounds and free formaldehyde is very stable so that formaldehyde can not be released to cause secondary pollution.

Method for efficiently adsorbing free formaldehyde

The invention discloses an indoor methanol remover formula which comprises the following components: 100 parts of adsorbent carrier, 16-72 parts of ethylene group urea, 4-5 parts of accelerant and 2-4 parts of essence. The formula adopts the ethylene group urea and the adsorbent carrier which are matched for use, the ethylene group urea is loaded on the adsorbent carrier, and when the adsorbent carrier performs physical adsorption on methanol in air, the ethylene group urea loaded on the adsorbent carrier can make a chemical reaction with the methanol to finally convert the methanol into a nontoxic and odorless substance, so that the methanol is thoroughly removed; the formula is convenient to use, low in price, and pollution-free; practice proves that the air quality is obviously improved after use of the formula; and the formula is particularly suitable for daily household use.

Indoor methanol remover formula

The invention discloses an indoor formaldehyde adsorbing material. The indoor formaldehyde adsorbing material comprises, by weight, 80 parts to 120 parts of active carbon, 40 parts to 80 parts of starch, 20 parts to 40 parts of peroxidation urea, 5 parts to 15 parts of sodium hydroxide solutions, 25 parts to 45 parts of nonionic surfactants, 35 parts to 55 parts of deionized water, 2 parts to 12 parts of hydrochloric acid, 10 parts to 30 parts of manganese dioxide, 5 parts to 15 parts of monox, 2 parts to 8 parts of copper oxide, 6 parts to 12 parts of magnesium oxide, 3 parts to 9 parts of polyethylene glycol terephthalate fibers, 2 parts to 8 parts of polypropylene fibers, 1 part to 6 parts of potassium bicarbonate, 2 parts to 6 parts of trishydroxymethylaminomethane and 2 parts to 8 parts of reactant solutions. The invention further discloses a preparation method of the indoor formaldehyde adsorbing material. The prepared indoor formaldehyde adsorbing material has the excellent formaldehyde adsorbing capacity and is high in purification efficiency and free of pollution.

Indoor formaldehyde adsorbing material and preparation method thereof

The invention discloses a household formaldehyde remover and a preparation method thereof. The formaldehyde remover is mainly composed of an adsorbent carrier which carries hydrazide compounds, wherein the weight ratio of the hydrazide compounds to the adsorbent is (0.032-0.144):1. By compounding the hydrazide compounds and adsorbent carrier, the adsorbent carrier performs physical adsorption on the formaldehyde in air, and the formaldehyde chemically reacts with the hydrazide compounds on the adsorbent carrier, so that the formaldehyde is finally converted into the nontoxic smellless substance, thereby thoroughly removing the formaldehyde. The preparation process is very simple: the hydrazide compounds and reaction promoter are prepared into the reactant solution, and the reactant solution is immersed in the adsorbent carrier. The operational process is simple and cheap, and thus, is especially suitable for household daily use.

Household formaldehyde remover and preparation method thereof

An adsorption-absorption reaction type formaldehyde removing agent is composed of adsorption-absorption agent (activated carbon, alumina, diatomite, polyamide or water) for adsorbing and absorbing the formaldehyde from indoor air, and reactant (sodium sulfite and ammonium salt or hydroxy amine hydrochloride) for reacting on adsorbed and absorbed formaldehyde to become non-toxic, no-odor and non-pollution substance.

Li Jingyin

Papers

Adsorption absorption reaction type formaldehyde eliminating agent