Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of inhibitor and smog, applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problems of secondary pollution, inapplicable dust inhibitors, and ineffective solidification of dust, so as to prevent re-dusting and be easy to promote , the effect of convenient source
Active Publication Date: 2017-08-11
SICHUAN WANAN DENDROBIUM IND DEV
View PDF10 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0007] Based on the technical problems existing in the background technology, the present invention proposes a haze inhibitor and its preparation method, aiming to solve the problems that dust cannot be effectively solidified and the existing dust inhibitors are not suitable for municipal facilities or will cause secondary pollution. Problems, ensure that it does not affect municipal facilities and travel safety after use, can be absorbed by plants, can be naturally degraded after entering water bodies, and does not cause harm to aquatic organisms
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0035] Preparation of CPAM:
[0036] In the reaction kettle equipped with stirrer, thermometer, reflux condenser and gas conduit, add the designed amount of AM and DMC (fixed mass ratio is AM:DMC=3:1~4:1), urea, EDTA-2Na and Deionized water, at a speed of 60r / min, pass through N 2 Stir for 30min;
[0037] The metered redox initiator (fixed mass ratio is (NH 4 ) 2 S 2 o 8 :NaHSO 3 =1:1) was formulated into a 1% aqueous solution, added to the reactor, and a certain amount of AIBN was added at the same time; the reaction temperature was raised to 30°C, and at a speed of 60r / min, the 2 Stir for 30min; stop feeding N 2 , quickly seal the reactor, react at 30°C for 3.5h, adjust the reaction temperature to 50°C, and continue to stand for 2h to obtain a transparent jelly product; place the jelly in an oven at 60°C for 48h, and dry the The solid is pulverized to obtain powdered CPAM.
[0038] The preparation process of a typical cationic polyacrylamide is described as follows:...
Embodiment 1
[0043] 5kg CPAM, 1kg CaCl 2 , 3kg polyethylene glycol-200, 2kg sodium lauryl sulfate and 89kg tap water were added in a 200L reactor, dissolved and mixed evenly under stirring conditions, to obtain the smog inhibitor.
Embodiment 2
[0045] 7kg CPAM, 2kg CaCl 2 , 4kg of glycerin, 1kg of sodium dodecylsulfonate and 86kg of tap water were added to a 200L reactor, dissolved and mixed evenly under stirring conditions to obtain the smog inhibitor.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a haze inhibitor. The haze inhibitor comprises cationic polyacrylamide, a calcium salt, polyol or polyacid salt, a penetrant and water. The cationic polyacrylamide (CPAM) used in the invention has good water solubility, fast dissolving speed, strong water absorption and strong water retention, and can maintain the humidity of an application position; the CPAM has various reactive groups, and the CPAM and various substances, such as aerosol and tiny dusts in air undergo an affinity action to adsorb, agglomerate and coagulate the various substances in order to form block substances, so afresh dust flying is prevented; the calcium salt and the polyol or polyacid salt used in the invention respectively have good moisture retention, have a bridging effect in the formula, and can well link particles; the haze inhibitor can be absorbed by plants, has no damages to vegetations and dose not cause secondary pollution to environment; and a preparation method of the haze inhibitor is simple, can be locally implemented in municipal administration and environmental protection works, and is easy to promote.
Description
technical field [0001] The invention relates to the technical field of environmental protection, in particular to a haze inhibitor and a preparation method thereof. Background technique [0002] Smog has always been accompanied by people's production and living activities, which will have a serious impact on the human body. With the intensification of human activities, smog is getting worse. In most parts of northern my country and parts of the Sichuan Basin, smog has seriously affected people's lives and endangered people's physical and mental health, and even life safety. Relevant national departments have invested a lot of funds and energy in the control of smog, and introduced many control measures, which have achieved certain results, but the smog is still serious. [0003] There is a phenomenon that deserves special attention, that is, after rain and humid and cold air, the smog suddenly decreases, and the air quality immediately becomes good or even excellent. Howe...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more