Acetyl cellulose/Fe-Al oxide composite membrane, and its preparing method and use

A technology of cellulose acetate and iron oxide, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as difficulty in separating error resin particles and soil particles, and achieve leakage prevention, convenient preparation, and easy realization. Effect
CN1309461CInactive Publication Date: 2007-04-11RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2007-04-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a cellulose acetate / iron and aluminium oxide composite film material, its preparation method and application. Said composite film material is formed from 85%-98% of cellulose acetate and 2%-5% of iron / aluminium compound, its thickness is 30-40 micrometers, and it is transparent and has reddish brown colour. Said invention also provides the concrete steps of its preparation method, and said film can be used for determining biological effective state phosphorus in the water and high-gathered trace phosphorus in the water.
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Description

technical field

[0001] The invention relates to an artificial synthetic polymer film for environmental monitoring and pollution control and a preparation method, in particular to a cellulose acetate / iron oxide composite membrane material and a preparation method, and the phosphoric acid of the above-mentioned composite membrane material in a water environment Applications for pre-concentration and removal of salts. Background technique

[0002] A method of separating, grading, purifying and enriching two-component or multi-component solutes and solvents using natural or artificially synthesized polymer films, driven by external energy or chemical potential difference, collectively referred to as membrane separation methods . Synthetic membranes can be divided into organic (polymer) membranes and inorganic membranes, of which the most important membrane materials are organics, ie polymers or macromolecules. The choice of which polymer is used as the membrane material is not...

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
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