Novel scale inhibition and dispersion agent

A scale inhibitor and dispersant, a new type of technology, applied in the field of scale inhibitor, to achieve the effects of stable and reliable process, cost reduction and sufficient sources

Inactive Publication Date: 2011-08-10
TIANJIN TELONG BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to overcome the deficiencies of the prior art, reduce the cost of water treatment chemicals, reduce or avoid the pollution of phosphorus substances to water bodies, and improve the scale inhibition and dispersion performance of water treatment chemicals. scale dispersant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 65 grams of maleic anhydride (purity 99.5%) and 32.5 grams of sulfamic acid (purity 99%) are added in 500 milliliters of four-port glass reaction preparation equipments under stirring state, under CO2 gas protection, begin slow heating, with 30 Heat to 60-80°C in minutes and maintain for 1 hour. Then it takes 1 hour to raise the temperature to 100-110° C. and carry out the ammonolysis reaction for 1 hour. Cool down to 60°C, add 60 grams of water, then add 5 mg each of self-made catalysts TL-A and TL-B, then add 25 grams of sodium hypophosphite (purity 99%), and divide sodium hypophosphite three times at 60°C After the addition was complete, the temperature was raised to 90°C. Under the condition of 90°C, start to add the initiator peroxide dropwise at a constant speed, and the aqueous solution of 21 grams (30%) of the initiator peroxide is added dropwise in 3 hours, and the reaction temperature is controlled at 100-110°C, and then kept at 100-110°C React for 2 hours. ...

Embodiment 2

[0040] Earlier maleic anhydride (purity 99.5%) 72.5 grams and sulfamic acid (purity 99%) 25 grams are added in 500 milliliters of four-port glass reaction preparation equipments under stirring state, under CO Under gas protection, begin to heat slowly, with 30 Heat to 60-80°C in minutes and maintain for 1 hour. Then it takes 1 hour to raise the temperature to 100-110° C. and carry out the ammonolysis reaction for 1 hour. Cool down to 60°C, add 60 grams of water, then add 5 mg each of self-made catalysts TL-A and TL-B, then add 25 grams of sodium hypophosphite (purity 99%), and divide sodium hypophosphite three times at 60°C After the addition was complete, the temperature was raised to 90°C. Under the condition of 90°C, the initiator peroxide was added dropwise at a constant speed, and the aqueous solution of 21 grams (30%) of the initiator peroxide was added dropwise in 3 hours, and the reaction temperature was controlled at 100-110°C, and then kept at 100-110°C React for 2...

Embodiment 3

[0042]First add 60 grams of maleic anhydride (purity 99.5%) and 20 grams of sulfamic acid (purity 99%) into 500ml four-port glass reaction production equipment under stirring, and start to slowly heat under CO2 gas protection for 30 minutes Time to heat to 60-80°C for 1 hour. Then it takes 1 hour to raise the temperature to 100-110° C. and carry out the ammonolysis reaction for 1 hour. Cool down to 60°C, add 60 grams of water, add 17.5 grams of sulfuric acid, then add 5 mg of self-made catalysts TL-A and TL-B, then add 25 grams of sodium hypophosphite (purity 99%), sodium hypophosphite at 60 Under the condition of ℃, the addition was completed three times, and the temperature was raised to 90 ℃. Under the condition of 90°C, the initiator peroxide was added dropwise at a constant speed, and the aqueous solution of 21 grams (30%) of the initiator peroxide was added dropwise in 3 hours, and the reaction temperature was controlled at 100-110°C, and then kept at 100-110°C React f...

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Abstract

The invention discloses a novel scale inhibition and dispersion agent. The novel scale inhibition and dispersion agent with excellent calcium carbonate scale inhibition performance and a certain calcium phosphate scale dispersion performance is prepared from maleic anhydride monomers and sulfamic acid monomers under the action of a catalyst in a peroxide and sodium hypophosphite initiation system. The scale inhibition and dispersion agent product has simple reaction process and stable and reliable technique. No three wastes are discharged, and environment pollution is not caused.

Description

Technical field [0001] The invention relates to a scale inhibitor in the field of industrial water treatment, in particular to a novel scale inhibitor dispersant, which is applied to the scale inhibitor dispersion of industrial circulating cooling water. Background technique [0002] At present, the amount of industrial water is very large, and most of it must be recycled, especially the cooling water for maintaining production. The development and use of industrial water treatment chemicals, especially scale inhibitors and dispersants, is just to meet this need. [0003] There are many varieties of scale inhibitors and dispersants at home and abroad. Phosphorus-based formula products are mainly used to control the deposition of calcium carbonate in circulating cooling water, mainly using inorganic phosphorus such as trisodium phosphate, polyphosphorus such as sodium tripolyphosphate, sodium hexametaphosphate, or Organic phosphine products such as HEDP, ATMP. The use of ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/02C02F5/12
Inventor 高玉国刘金科翟广通
Owner TIANJIN TELONG BIOCHEM
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