A method for preparing dyeing accelerator based on high nitric water
A technology of high nitric water and dye accelerator, applied in the new process of comprehensive utilization of dye accelerator for dyeing and finishing process, sodium sulfate, sodium chloride, can solve the problems of difficult processing, high processing cost, unfavorable environmental protection, etc., and achieve Conducive to storage, saving dosage and improving leveling effect
Active Publication Date: 2016-06-29
CHINASALT JINTAN
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Problems solved by technology
High-nitrate water is used as wastewater for primary brine production, and its discharge is not good for environmental protection. It is relatively difficult to deal with, and the treatment cost is high. If it can be fully reused, it will be of great significance to both production and environmental protection.
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[0015] Experiment 1: the present invention is further described by specific examples below:
[0016] In each embodiment, the pH value of the high nitric water is adjusted to 5, then heated to 80° C., and kept for 2 hours, so that the solid impurities in the high nitric water (especially impurities like calcium carbonate) are rapidly decomposed, and then the gradient After cooling down (10°C / min) to normal temperature (25°C), the high-nitrate water is filtered through a device similar to a microfiltration membrane to remove a small amount of insoluble matter, and finally the treated high-nitrate water can be obtained, and then deionized Water can be used as a dyeing accelerator when mixed in a certain proportion.
[0017] And the ratio of each component in the dyeing accelerator obtained in each embodiment is as shown in table 1 (the unit of each content value in table 1 is mass concentration " g / L "):
[0018] Table 1
[0019]
Sodium chlori...
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The invention belongs to the field of inorganic chemical industry, and in particular relates to a novel comprehensive utilizing process for using sodium chloride and sodium nitrate in high-saltpetre water produced by one-time saline production as a dyeing promoter in the dyeing and finishing process. According to the method, the high-saltpetre water is used as the dyeing promoter during dyeing the dyes, so that the problem of difficult treatment of high-saltpetre water in one-time saline preparation can be solved, and the problem of high cost caused by adding sodium chloride or anhydrous sodium sulphate as the dyeing promoter in the general dyeing process can be also solved; meanwhile, the effect of high-saltpetre water using as the dyeing promoter is superior to that of the general dyeing process product, and moreover, the quantity of the used dyeing promoters can be saved.
Description
technical field [0001] The invention belongs to the field of inorganic chemical industry, and in particular relates to a new process for comprehensive utilization of sodium chloride and sodium sulfate in high-nitrate water produced by primary brine production as dyeing accelerators for dyeing and finishing processes. Background technique [0002] Printing and dyeing auxiliaries generally include printing auxiliaries and dyeing auxiliaries. Among them, dyeing auxiliaries are divided into: dyeing agent, dispersant, leveling agent, color fixing agent, fluorescent whitening agent, softener and so on. The present invention is one of the dyeing agents, which is a reagent used to accelerate the dyeing of dyes, also known as a dyeing accelerator. [0003] Dye accelerator is a compound that can increase the dyeing rate of dyes on fibers, accelerate the dyeing rate, reduce the content of dyes in the raffinate, and obtain higher dyeing depth. The dyeing effect is determined by the am...
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IPC IPC(8): D06P1/673D06P3/66D06P1/38C02F9/10
Inventor 陈留平李伟谢兴胜姚金华
Owner CHINASALT JINTAN