CN102206174A - Urea hydrogen peroxide disinfectant and preparation method thereof - Google Patents
Urea hydrogen peroxide disinfectant and preparation method thereof Download PDFInfo
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- CN102206174A CN102206174A CN2011100870449A CN201110087044A CN102206174A CN 102206174 A CN102206174 A CN 102206174A CN 2011100870449 A CN2011100870449 A CN 2011100870449A CN 201110087044 A CN201110087044 A CN 201110087044A CN 102206174 A CN102206174 A CN 102206174A
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- hydrogen peroxide
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- urea hydrogen
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Abstract
The invention discloses a urea hydrogen peroxide disinfectant and a preparation method thereof. The finished urea hydrogen peroxide disinfectant is prepared by stirring and mixing urine, hydrogen peroxide, trisodium phosphate, salicylic acid and sodium silicate in a certain weight ratio at a certain temperature. The preparation process of the urea hydrogen peroxide disinfectant is simple and convenient; in reaction time, the rise of a reaction temperature can be controlled and the type of the stabilizer can be changed effectively; the crystallization temperature is changed; and the chlorine dioxide can be used for disinfection in various industries such as hospitals, schools, drinking water and the like, the application range is wide and the effect is obvious.
Description
Technical field
The invention belongs to the sterilizing agent technical field, be specifically related to a kind of carbamide peroxide sterilizing agent and preparation method thereof.
Background technology
Carbamide peroxide [CO (NH
2)
2.H
2O
2] be that hydrogen peroxide is attached to 1: 1 adducts that forms on the urea in the hydrogen bond mode, it is a kind of nontoxic, tasteless white crystalline powder, compare with hydrogen peroxide, Peracetic Acid, SPC-D and other solid peroxides, carbamide peroxide has characteristics such as fungicidal spectrum is wide, sterilizing power is strong, working concentration is low, disinfecting time is short, the no residual toxicity in sterilization back.As the reagent that provides of a kind of solid oxidizing agent and oxygen source, carbamide peroxide can be widely used in fields such as bleaching, weaving, waste treatment, daily-use chemical industry, medicine, agricultural, aquaculture.
At present, hydrogen peroxide and urea reaction synthetic wet processing are generally adopted in the production of carbamide peroxide, hydrogen peroxide and urea 1: 1 (mol ratio) just can be in conjunction with generating solid peroxygen urea on this technology theory, but, the formulation of carbamide peroxide production technique is restricted because of the influence that two kinds of materials are very easily decomposed by solubleness and hydrogen peroxide instability.Can find wherein 2 subject matters by present carbamide peroxide synthetic bibliographical information: behind (1) hydrogen peroxide and the urea synthesis carbamide peroxide, the dilute solution recycle problem of part hydrogen peroxide that still contains in the surplus solution and urea.This is for being that raw material production can be carried out with the high-strength hydrogen peroxide, but the easier decomposition of high-strength hydrogen peroxide, the hydrogen peroxide utilization ratio reduces. for the conventional hydrogen peroxide raw material of concentration 35%, the recycle of hydrogen peroxide mother liquor must be carried out evaporation concentration, but also lacks the theoretical direction of relevant phasor at present; (2) because carbamide peroxide is the high added value fine product, and its production bibliographical information is more, but appropriate processing condition has different versions, and is still waiting to continue research.
Summary of the invention
The object of the invention is the reduction for yield that improves carbamide peroxide and temperature of reaction, and a kind of carbamide peroxide sterilizing agent and preparation method thereof is provided.
The present invention adopts following technical scheme to achieve these goals:
The carbamide peroxide sterilizing agent is characterized in that its constitutive material weight ratio is: urea 59.5%-60%, hydrogen peroxide 37.5%-38.2%, tertiary sodium phosphate 0.3%-0.5%, Whitfield's ointment 0.5%-1%, water glass 1%-1.5%.
The preparation method of described carbamide peroxide sterilizing agent is characterized in that may further comprise the steps:
(1) add in the reactor than urea and hydrogen peroxide by certain raw material weight, stirring reaction, controlled temperature 30-50 ℃, reacted 30-50 minute, in the time of reaction, add hydrogen peroxide, tertiary sodium phosphate, the Whitfield's ointment of certain weight ratio;
(2) reaction finishes back removal product crystallisation by cooling, and Tc is controlled at subzero 10-15 ℃, and crystallization 10-12h obtains finished product.
Beneficial effect of the present invention:
Carbamide peroxide sterilizing agent preparation process of the present invention is easy, the effectively lifting of control reaction temperature in reaction times, changed the kind of stablizer, and improved Tc, this dioxide peroxide can be used for sterilizing in all trades and professions such as hospital, school, tap water, and is of many uses, effect is obvious.
Embodiment
Embodiment: the carbamide peroxide sterilizing agent, its constitutive material weight ratio is: urea 60g, hydrogen peroxide 38ml, tertiary sodium phosphate 0.4g, Whitfield's ointment 1g, water glass 1.5g.
The preparation method of carbamide peroxide sterilizing agent may further comprise the steps:
(1) add in the reactor than urea and hydrogen peroxide by certain raw material weight, stirring reaction, controlled temperature 30-50 ℃, reacted 30-50 minute, in the time of reaction, add hydrogen peroxide, tertiary sodium phosphate, the Whitfield's ointment of certain weight ratio;
(2) reaction finishes back removal product crystallisation by cooling, and Tc is controlled at subzero 10-15 ℃, and crystallization 10-12h obtains finished product.
Claims (2)
1. a carbamide peroxide sterilizing agent is characterized in that its constitutive material weight ratio is: urea 59.5%-60%, hydrogen peroxide 37.5%-38.2%, tertiary sodium phosphate 0.3%-0.5%, Whitfield's ointment 0.5%-1%, water glass 1%-1.5%.
2. the preparation method of the described carbamide peroxide sterilizing agent of claim 1 is characterized in that may further comprise the steps:
(1) add in the reactor than urea and hydrogen peroxide by certain raw material weight, stirring reaction, controlled temperature 30-50 ℃, reacted 30-50 minute, in the time of reaction, add hydrogen peroxide, tertiary sodium phosphate, the Whitfield's ointment of certain weight ratio;
(2) reaction finishes back removal product crystallisation by cooling, and Tc is controlled at subzero 10-15 ℃, and crystallization 10-12h obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100870449A CN102206174A (en) | 2011-04-08 | 2011-04-08 | Urea hydrogen peroxide disinfectant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100870449A CN102206174A (en) | 2011-04-08 | 2011-04-08 | Urea hydrogen peroxide disinfectant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102206174A true CN102206174A (en) | 2011-10-05 |
Family
ID=44695269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100870449A Pending CN102206174A (en) | 2011-04-08 | 2011-04-08 | Urea hydrogen peroxide disinfectant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102206174A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617406A (en) * | 2012-03-12 | 2012-08-01 | 河北科技大学 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| CN107030817A (en) * | 2017-05-19 | 2017-08-11 | 广西金荣纸业有限公司 | A kind of secondary pretreatment immersion liquid B and its application in preparation sinocalamus latiflorus true qualities paper pulp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58167557A (en) * | 1982-03-30 | 1983-10-03 | Nippon Peroxide Co Ltd | Preparation of adduct of urea with hydrogen peroxide |
| CN1470507A (en) * | 2002-07-22 | 2004-01-28 | 李星林 | High-activity stable peroxide carbamid and its preparing method |
| CN1915972A (en) * | 2006-08-07 | 2007-02-21 | 浙江工业大学 | Method for preparing peroxidating urea |
-
2011
- 2011-04-08 CN CN2011100870449A patent/CN102206174A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58167557A (en) * | 1982-03-30 | 1983-10-03 | Nippon Peroxide Co Ltd | Preparation of adduct of urea with hydrogen peroxide |
| CN1470507A (en) * | 2002-07-22 | 2004-01-28 | 李星林 | High-activity stable peroxide carbamid and its preparing method |
| CN1915972A (en) * | 2006-08-07 | 2007-02-21 | 浙江工业大学 | Method for preparing peroxidating urea |
Non-Patent Citations (2)
| Title |
|---|
| 刘瑛，王鸿显: "过碳酰胺稳定剂的筛选研究", 《江苏化工》 * |
| 曹吉林，李梦青: "固体消毒剂过氧化尿素湿法合成", 《过程工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617406A (en) * | 2012-03-12 | 2012-08-01 | 河北科技大学 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| CN102617406B (en) * | 2012-03-12 | 2013-09-04 | 河北科技大学 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| CN107030817A (en) * | 2017-05-19 | 2017-08-11 | 广西金荣纸业有限公司 | A kind of secondary pretreatment immersion liquid B and its application in preparation sinocalamus latiflorus true qualities paper pulp |
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Application publication date: 20111005 |