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Composite water treating agent for industrial circulation cooling water

A technology of circulating cooling water and water treatment agent, used in water/sludge/sewage treatment, complex/solubilizer treatment, scale removal and water softening, etc., to achieve excellent high temperature scale inhibition performance and zinc stabilization ability, increase The effect is obvious and the stability is improved

Active Publication Date: 2006-12-20
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two documents only made a preliminary theoretical study on the single application effect of the specific compound formula containing rare earth elements on the scale or corrosion inhibition in water treatment, and further research is needed to combine the dual synergistic effect of corrosion inhibition and scale inhibition Other compound formulas containing rare earth elements to facilitate practical industrial applications, especially the development of water treatment agent compound formulas for industrial circulating cooling water

Method used

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  • Composite water treating agent for industrial circulation cooling water

Examples

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Effect test

Embodiment 1

[0018] The preparation of composite water treatment agent: with 5mg phosphine carboxylic acid copolymerization compound, 5mg sodium molybdate (as MoO 4 2- meter), 3mg benzotriazole (BTA), 1mg cerium nitrate, 1mg ZnSO 4 ·H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

Embodiment 2

[0020] The preparation of composite water treatment agent: with 3mg phosphine carboxylic acid copolymerization compound, 5mg sodium molybdate (as MoO 4 2- meter), 3mg benzotriazole (BTA), 0.5mg lanthanum nitrate, 1mg ZnSO 4 ·H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

Embodiment 3

[0022] The preparation of composite water treatment agent: with 3mg phosphine carboxylic acid copolymerization compound, 3mg sodium molybdate (as MoO 4 2- meter), 3mg benzotriazole (BTA), 1.5mg praseodymium nitrate, 1mg ZnSO 4 ·7H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

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Abstract

The invention discloses a treating agent of cooling water and composite water in industrial cycle, including the weight or portioning components listed as following: one to ten portion of phosphoric carboxylate copolymerisate; one to ten portion of molybdate calculated according to molybdic acid ion; 0.1 to ten portion of rare-earth element salts; one to five portion of copper inhibitor; zero to five portion of zinc calculated according to zinc ion. This invention is low-phosphorus and environment-friendly type, good quality in antisludging and corrosion inhibit, especially suitable for the harsh water quality of large hard value, large basic value, large PH value, large suspended matter value, and easy to obtain material, explore the application area of using rare-earth element in water treatment, and have greatly active meaning in developing rare earth project of our country.

Description

technical field [0001] The invention relates to a composite water treatment agent, in particular to a composite water treatment agent for industrial circulating cooling water. Background technique [0002] The current industrial circulating cooling water treatment agents mostly use phosphorus-based formulas containing organic phosphonic acids, but organic phosphonic acids contain high phosphorus (30% to 50%), which may lead to eutrophication of waters, promote algae growth, and appear Phosphorus scale, red tide and other phenomena, so the use of organic phosphonic acid water treatment agent is more and more restricted. A new type of water treatment agent with low phosphorus content—phosphonic acid-based carboxylic acid copolymers developed at present can further replace organic phosphonates with high phosphorus content [Xiao Junxia, ​​Mei Ping, Wu Weixia, Duan Mingfeng. Research and application of additives. Progress in fine petrochemical industry. 2004, 5 (1): 47-49], Chin...

Claims

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Application Information

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IPC IPC(8): C02F5/08C02F5/14
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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