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Snow-melting agent with corrosion inhibition effect on carbon steel and preparation method thereof

A snow-melting agent and corrosion-inhibiting technology, applied in the field of snow-melting agent preparation, can solve the problems of high price and lack of widespread adoption, and achieve the effect of protection from corrosion

Inactive Publication Date: 2018-07-20
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the late 1990s, the research on organic acid salt type deicing agent was mainly carried out, such as the research on the compound formula of sodium acetate, but due to the high price of this type of deicing agent, it was not widely used.

Method used

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  • Snow-melting agent with corrosion inhibition effect on carbon steel and preparation method thereof
  • Snow-melting agent with corrosion inhibition effect on carbon steel and preparation method thereof
  • Snow-melting agent with corrosion inhibition effect on carbon steel and preparation method thereof

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preparation example Construction

[0028] The following combination figure 1 The process route diagram in illustrates the preparation method of the above-mentioned deicing agent of the present invention; Specifically, the preparation method comprises the following steps:

[0029] In step S1, the bulk magnesium chloride hydrate raw material is crushed to a particle size of 2 cm to 5 cm, and then sieved once to obtain a first oversize and a first undersize.

[0030] Specifically, the aperture of the sieve used for primary screening is 20 mesh to 40 mesh.

[0031] Here, the raw material of the hydrated magnesium chloride block is preferably bischofite; in this way, using a large amount of bischofite as a by-product of the salt lake as a raw material, on the one hand, greatly reduces the preparation cost of the deicing agent, and on the other hand, can also reduce a large amount of by-product water. The imbalance of salt lake resources caused by chlormagnesite.

[0032] Preferably, the first sieve material needs ...

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Abstract

The invention discloses a snow-melting agent with a corrosion inhibition effect on carbon steel. The snow-melting agent is prepared from hydrated magnesium chloride and sodium pyrophosphate which aremixed according to the mass ratio of 10:100-15:100 and are granulated. The sodium pyrophosphate is used as a carbon steel corrosion inhibitor; the sodium pyrophosphate of the specific mixture quantityis mixed with hydrated magnesium chloride to obtain the novel snow-melting agent; the snow melting agent has a good corrosion inhibition effect on the carbon steel. Compared with the sodium chloridesnow-melting agent in the prior art, the snow-melting agent has the advantages that the carbon steel is protected from being corroded to the maximum degree. The invention also discloses a preparationmethod of the snow-melting agent with the corrosion inhibition effect on the carbon steel.

Description

technical field [0001] The invention belongs to the technical field of snow-melting agent preparation, and specifically relates to a snow-melting agent with corrosion inhibition effect on carbon steel and a preparation method of the snow-melting agent. Background technique [0002] In terms of research on deicing and snow melting agents, my country began in the middle and late 1990s, mainly to study the main components of deicing and snow melting agents, the proportion of main substances and the use of additives that reduce the impact on the natural ecological environment, and rationally use the main components The purpose of the preparation is to reduce the negative impact of the sodium chloride deicing agent on the surrounding natural ecological environment, such as reducing the corrosion of roads and metals and the impact on animals and plants. In the late nineties of the 20th century, the research on the organic acid salt type deicing agent was mainly carried out, such as...

Claims

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Application Information

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IPC IPC(8): C09K3/18C23F11/18
CPCC09K3/185C23F11/184
Inventor 曾忠民王俊刘志启李丽娟宋雪雪宋富根聂锋姬连敏时东彭小五韩文生张利诚
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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