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Dinonyl naphthalene sulfonic acid zinc and preparation method thereof

A technology of zinc dinonylnaphthalenesulfonate and dinonylnaphthalenesulfonic acid, which is applied in the field of zinc dinonylnaphthalenesulfonate and its preparation, can solve the problems of difficult product quality assurance, high production cost, and industrial waste discharge Many problems, such as good oil solubility, excellent anti-emulsification and anti-rust properties, simple and easy preparation method

Inactive Publication Date: 2015-04-22
苏州市浒墅关化工添加剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the use of zinc dinonylnaphthalenesulfonate is relatively common, its production process is relatively rough, the discharge of three industrial wastes is large, the production cost is also high, and the product quality is difficult to be guaranteed.

Method used

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  • Dinonyl naphthalene sulfonic acid zinc and preparation method thereof

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific embodiments.

[0020] Such as figure 1 As shown, a zinc dinonylnaphthalene sulfonate is based on the reaction of nonene with naphthalene under the action of aluminum trichloride as a catalyst to form dinonylnaphthalene, which is then reacted with concentrated sulfuric acid to form dinonylnaphthalenesulfonate Acid, dinonylnaphthalenesulfonic acid and zinc oxide react to produce zinc dinonylnaphthalene xanthate. The material composition and content of zinc dinonylnaphthalene xanthate are:

[0021] Nonene 650-750kg, naphthalene 280-350kg, monononylnaphthalene 300-500kg, aluminum trichloride 35-45kg, 120 solvent oil 400-500kg, concentrated sulfuric acid 1200-1400kg, liquid caustic soda 120-140kg; zinc oxide 220 -250kg.

[0022] A preparation method of zinc dinonylnaphthalenesulfonate, which comprises the following steps:

[0023] 1) Alkylation reaction and sedimentation: The weight ratio of the hyd...

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Abstract

The invention discloses dinonyl naphthalene sulfonic acid zinc and a preparation method thereof, and belongs to the technical field of chemical additive production. According to the preparation method, nonylene is reacted with naphthalene and concentrated sulfuric acid so as to obtain dinonyl naphthalene sulfonic acid; the obtained dinonyl naphthalene sulfonic acid is reacted with zinc oxide so as to obtain dinonyl naphthalene sulfonic acid zinc. The dinonyl naphthalene sulfonic acid zinc comprises, by weight, 650 to 750 parts of nonylene, 280 to 350 parts of naphthalene, 300 to 500 parts of nonyl naphthalene, 35 to 45 parts of aluminium trichloride, 120 to 140 parts of liquid alkali, 400 to 500 parts of solvent naphtha No.120, 1200 to 1400 parts of concentrated sulfuric acid, and 220 to 250 parts of zinc oxide. The preparation method comprises steps of hydrocarbonylation reaction and sedimentation; alkaline washing; distillation; sulfonation; water washing; neutralization and desolventizing; and blending and barreling. The amounts of the ingredients are controlled for production, so that the obtained dinonyl naphthalene sulfonic acid zinc possesses excellent demulsibility, anti-rust property, and oil solubility.

Description

Technical field [0001] The invention belongs to the technical field of chemical additive production, and more specifically, relates to a zinc dinonylnaphthalenesulfonate and a preparation method thereof. Background technique [0002] At present, the dinonylnaphthalene sulfonate series has good anti-corrosion and anti-rust properties, and is widely used in various natural or synthetic lubricating oils as anti-corrosion and rust inhibitors, and dinonylnaphthalene sulfonic acid is a kind of extremely active The compound is mainly used as a catalyst and curing agent for coatings. Because of its obvious effect and reliable quality, it is widely used at home and abroad. At present, although zinc dinonylnaphthalene sulfonate is widely used, its production process is relatively rough, the three industrial wastes are discharged more, and the production cost remains high, and product quality is difficult to guarantee. [0003] Therefore, it is necessary to improve the existing production pr...

Claims

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Application Information

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IPC IPC(8): C07C309/37C07C303/32
Inventor 张静波
Owner 苏州市浒墅关化工添加剂有限公司
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