CN104650701A - Regeneration method of alkyd resin oil paint waste residues - Google Patents

Abstract

The invention discloses a regeneration method of alkyd resin oil paint waste residues, and belongs to the field of utilization of oil paint waste residues. The method comprises the following steps: dissolving the alkyd resin oil paint waste residues by using ethanol with the concentration of 95 percent at first; adding dodecylbenzene sulfonic acid, methylmorpholine and dibutyltin dilaurate in a certain proportion; uniformly stirring; performing pressure reduction and distillation; cooling; and mechanically extruding out and cutting off to obtain a solid-state alkyd resin oil paint finished product. According to the method, the alkyd resin oil paint waste residues are used as productive raw materials, so that the alkyd resin oil paint waste residues are subjected to hazard-free and resource effective treatment, and the production cost of the alkyd resin oil paint can also be reduced.

Description

Alkyd paint slag regenerating process

Technical field

The invention belongs to paint slag and utilize field, particularly relate to a kind of alkyd paint slag regenerating process.

Background technology

One class coating of alkyd paint to be the Synolac made with polyvalent alcohol, polyprotonic acid and dry vegetable oil be main film forming matter, can be widely used in the covering with paint of building, bridge, boats and ships, vehicle, instrument, instrument etc.

Although the widespread use of alkyd paint, the alkyd paint waste residue thereupon produced also gets more and more.At present, the treatment process of alkyd paint waste residue generally has two kinds: landfill and burning.Landfill is process solid waste the simplest method, but its not only floor space is large, waste a large amount of land resources, and easily cause environmental pollution; Alkyd paint waste residue can obtain heat energy or electric energy by burning disposal, but due to this method to its combustion equipment require high, easily produce secondary pollution in combustion.

Above two kinds for the treatment of processs are not that alkyd paint waste residue is innoxious, the most effective processing mode of resource utilization.

Summary of the invention

The invention provides a kind of alkyd paint waste residue that can make and obtain alkyd paint slag regenerating process that is fully innoxious, recycling treatment.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A kind of alkyd paint slag regenerating process, comprises the steps:

First the foreign material in alkyd paint waste residue are removed, then 95% ethanol is joined alkyd paint waste residue for 2:1 in mass ratio, stir after alkyd paint waste residue is dissolved completely, and then add Witco 1298 Soft Acid, methylmorpholine and dibutyl tin dilaurate, stir, at 65 DEG C, underpressure distillation 15min, obtains product of distillation, when being cooled to 40 DEG C, extrude through machinery and cut off, obtaining solid alcohol acid resin paint finished product;

Wherein, the mass ratio of described alkyd paint waste residue and Witco 1298 Soft Acid is 8:2, and the mass ratio of described alkyd paint waste residue and methylmorpholine is 12:1, and the mass ratio of described alkyd paint waste residue and dibutyl tin dilaurate is 6:1.

Owing to adopting technique scheme, the present invention has following beneficial effect:

The present invention for raw materials for production with alkyd paint waste residue, both can make alkyd paint waste residue obtain effective process that is innoxious, resource utilization, can be reduced again the production cost of alkyd paint.

Embodiment

Below in conjunction with specific examples, the invention will be further described:

First the foreign material in 100kg alkyd paint waste residue are removed, then 200kg95% ethanol joins alkyd paint waste residue, stir after alkyd paint waste residue is dissolved completely, and then add 25kg Witco 1298 Soft Acid, 8.3 kg methylmorpholines and 16.7 kg dibutyl tin dilaurates, stir, at 65 DEG C, underpressure distillation 15min, obtains product of distillation, when being cooled to 40 DEG C, extrude through machinery and cut off, obtaining solid alcohol acid resin paint finished product.

Former for alkyd paint paint and the alkyd paint performance that obtains after reclaiming with alkyd paint waste residue are detected respectively, result is as table 1.

Table 1

From above-mentioned table 1, can find out, regenerate according to the present invention the alkyd paint obtained and can reach performance from the former paint bought back on the market.

Claims (1)

1. an alkyd paint slag regenerating process, is characterized in that comprising the steps:

First the foreign material in alkyd paint waste residue are removed, then 95% ethanol is joined alkyd paint waste residue for 2:1 in mass ratio, stir after alkyd paint waste residue is dissolved completely, and then add Witco 1298 Soft Acid, methylmorpholine and dibutyl tin dilaurate, stir, at 65 DEG C, underpressure distillation 15min, obtains product of distillation, when being cooled to 40 DEG C, extrude through machinery and cut off, obtaining solid alcohol acid resin paint finished product;

Wherein, the mass ratio of described alkyd paint waste residue and Witco 1298 Soft Acid is 8:2, and the mass ratio of described alkyd paint waste residue and methylmorpholine is 12:1, and the mass ratio of described alkyd paint waste residue and dibutyl tin dilaurate is 6:1.