Efficient, solid, high-temperature-resistant and high-pressure-resistant corrosion and scale inhibitor
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A corrosion and scale inhibitor, high temperature resistant technology, used in the field of water treatment to prevent corrosion, improve fluidity, and curb caustic embrittlement
Inactive Publication Date: 2017-07-07
滕文良
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[0019] In order to further illustrate the technical means adopted by the present invention and its effects, the following is a detailed description in conjunction with preferred embodiments of the present invention.
[0020] A high-efficiency solid high-temperature and high-pressure corrosion and scale inhibitor includes: the following components in mass percentages: 20-40% of macromolecular multi-based polymers, 5-20% of aminocarboxylic acids, and 40-60% of sodium carbonate %, sodium hydroxide 0.1-5%; macromolecular multi-base polymers (HA, FA)
[0021] Macromolecular multi-based polymers HA and FA, the basic structure is aromatic ring and alicyclic ring, the ring is connected with carboxyl group, hydroxyl group, hydroxyl group, quinone group, phenol group, ketomethoxy functional group, and metal ion exchange, adsorption, Complexation and chelation, as a "polyelectrolyte" in the dispersion, has coagulation, peptization, and dispersion effects, and is compounded with aminocarb...
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Abstract
The invention relates to an efficient, solid, high-temperature-resistant and high-pressure-resistant corrosion and scale inhibitor. The efficient, solid, high-temperature-resistant and high-pressure-resistant corrosion and scale inhibitor is prepared from, by mass, 20-40% of macromolecule multibase polymers, 5-20% of amino carboxylic acid, 40-60% of sodium carbonate and 0.1-5% of sodium hydroxide; the macromolecule multibase polymers (HA and FA) extracted from papermaking waste, coal mining waste and other waste are adopted, the basic structure is aromatic rings and alicyclic rings, the rings are connected with carboxyl groups, hydroxyl groups, hydroxyl groups, quinonyl groups, phenol groups, ketone methoxy groups and other functional groups, the macromolecule multibase polymers have exchange, adsorption, complexation and chelation effects on metal ions, serve as polyelectrolyte in a dispersion body and have the effects of condensation, peptisation, dispersion and the like, the macromolecule multibase polymers and the amino carboxylic acid such as sodium ethylene diamine tetracetate have complexing properties and are alkaline, and the macromolecule multibase polymers are formed by compounding according to the weight ratio. According to the efficient, solid, high-temperature-resistant and high-pressure-resistant corrosion and scale inhibitor, the anti-corrosion scale inhibition rate is 95% or above, the quality guarantee period is up to 8-10 years, the corrosion and scale inhibitor can be directly thrown into a medium so that the use amount is low, and expensive boiler supporting facilities are replaced.
Description
technical field [0001] The present invention relates to a high-efficiency solid high-temperature and high-pressure corrosion and scale inhibitor, in particular to the technical field of water treatment. Background technique [0002] In the past, most of the water softeners consumed in the market were products containing OH- and phosphate. This is a technology introduced from the former Soviet Union's Science and Technology Committee in the 1950s. At that time, the boiler structure and parameters were relatively simple, and today's use can no longer meet the equipment requirements. In recent years, some water softeners have been developed, some of which have excessive dosage, which is uneconomical, and some are slightly corrosive, and the effect is not good, and users are not satisfied. [0003] OH-type: can reduce the hardness of carbonate and magnesium, has no effect on heavy metal ions, and has no effect on anions, and has anti-corrosion effect on boilers within the effec...
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