Low-conductivity super-long-acting organic base type anti-freezing cooling liquid

A technology of antifreeze coolant and low conductivity, which is applied in the field of organic alkali type antifreeze coolant, low conductivity, and super long-term effect. It can solve the problems of poor solubility of organic carboxylic acid, complicated production process, and easy precipitation, etc. Low attachment rate, high boiling point, satisfying the effect of continuous work

CN102174313BInactive Publication Date: 2014-01-15ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-01-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides low-conductivity super-long-acting organic base type anti-freezing cooling liquid, which comprises the following components in percentage by weight: 15 to 96 percent of anti-freezing agent, 0.05 to 1.5 percent of natural alkaloid, 0.5 to 2.5 percent of hetero-cycloalkane, 0.01 to 0.3 percent of azole component, and the balance of deionized water. In invention, since the natural alkaloid is matched with nonionic organic compounds, the prepared anti-freezing cooling liquid has the characteristics of low freezing point, high boiling point, no scale formation, corrosion protection, high heat efficiency and the like; in addition, the prepared anti-freezing cooling liquid also has ultra-low conductivity which can reach 5 mus / cm and is a few hundredths of the conductivity of a common water cooling medium because the anti-freezing cooling liquid does not contain the components of inorganic salts, organic carboxylic acid and the like. The anti-freezing cooling liquid with ultra-low conductivity can effectively slow up the corrosion on metal parts of a cooling system, and meet the requirement of special conditions such as the cooling of a wind generator set and the like on the insulation safety of the anti-freezing cooling liquid. The anti-freezing cooling liquid realizes environmental protection and ultra-long-acting service, and is particularly suitable for special equipment such as a wind generator set, an imperial sedan engine and the like.
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Description

technical field

[0001] The invention relates to an antifreeze cooling liquid, in particular to a low-conductivity, ultra-long-acting, organic alkali type antifreeze cooling liquid, which belongs to the field of chemical industry. Background technique

[0002] Inorganic antifreeze coolants contain components such as borax, nitrite or amine salts, which have serious corrosion to metal parts, short service life, poor stability, and carcinogenicity. Developed countries have restricted their use. Organic antifreeze coolant has the characteristics of excellent anti-corrosion performance, long-term use, environmental protection and non-toxicity, and is favored by more and more people. Many foreign companies, such as Texaco, ARCO, DOW in the United States, CCI in Japan, and BASF in Germany, have developed all organic antifreeze products and put them on the market.

[0003] The domestic all-organic antifreeze coolant research started relatively late, and the more advanced products a...

Examples

Embodiment 1

[0022] Take 10kg of ethylene glycol, 5kg of propylene glycol, and 83.5kg of deionized water and stir for 5 minutes at room temperature, then add 0.3kg of coucine, 0.95kg of aziridine, and 0.25kg of tolylbenzotriazole in sequence, and mix at 40°C Stir for 30 min until a homogeneous stable solution is formed.

Embodiment 2

[0024] Get 20kg of ethylene glycol, 15kg of propylene glycol, 62kg of deionized water and stir for 5min at room temperature, then add 0.55kg of vincristine, 1.1kg of piperazine hexahydrate and 1.1kg of aziridine, and 0.25kg of mercaptobenzothiazole successively at 40 Stir at ℃ for 30 min until a uniform and stable solution is formed.

Embodiment 3

[0026] Take 55kg of propylene glycol, 44kg of deionized water and stir for 5min at room temperature, then add, arecoline 0.2kg, p-oxazepine 0.5kg, methyl benzotriazole and 3-amino-4,5-dimethyliso 0.15 kg each of oxazole, and stirred at 40°C for 30 min until a uniform and stable solution was formed.