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Method for recycling potassium chloride and organisms from initiator production waste liquid

A technology of initiator and potassium chloride, applied in alkali metal chlorides, chemical instruments and methods, neutralized water/sewage treatment, etc., can solve problems such as environmental pollution and waste of resources, reduce production costs, and eliminate waste of resources , High recovery effect

Active Publication Date: 2014-05-21
乌鲁木齐市华泰隆化学助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a kind of method that reclaims potassium chloride and organic matter from initiator production waste liquid, has overcome above-mentioned deficiency in the prior art, and it can effectively solve initiator peroxidized neodecanoic acid tert-butyl ester, peroxidized neodecanoate, etc. The production waste liquid of cumyl acetate is directly discharged into the sewage treatment system, causing environmental pollution and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, the method for reclaiming potassium chloride and organic matter from the initiator production waste liquid is carried out according to the following steps: the first step is to add the collected initiator production waste liquid in the glass reactor; the second step is to open Stir with a mixer, add hydrochloric acid into the glass reactor to neutralize the initiator production waste liquid, stop stirring after the pH value of the initiator production waste liquid reaches 6.5 to 7.5, and let the initiator stand for 1 to 2 hours. The production waste liquid is divided into upper and lower layers, the upper layer is the oil phase, and the lower layer is the water phase containing potassium chloride; the third step is to place the water phase containing potassium chloride in the lower layer in an evaporation crystallizer with a temperature of 100°C to 105°C Evaporate in the water phase until the mass percentage of potassium chloride in the water phase is 30% t...

Embodiment 2

[0014] Embodiment 2, the method for reclaiming potassium chloride and organic matter from the initiator production waste liquid is carried out according to the following steps: the first step, the initiator production waste liquid that is collected is added in the glass reactor; the second step, open Stir with a mixer, add hydrochloric acid to the glass reactor for neutralization reaction with the initiator production waste liquid, stop stirring after the pH value of the initiator production waste liquid reaches 6.5 to 7.5, and let it stand for 1 hour or 2 hours, the initiator The production waste liquid is divided into upper and lower layers, the upper layer is the oil phase, and the lower layer is the water phase containing potassium chloride; the third step is to place the water phase containing potassium chloride in the lower layer in an evaporation crystallizer with a temperature of 100°C or 105°C Evaporate in the water phase until the mass percentage of potassium chloride...

Embodiment 3

[0015] Embodiment 3, as the optimization of the above embodiment: the waste liquid from the production of the initiator is the waste liquid from the production of tert-butyl neodecanoate; or the waste liquid from the production of the initiator is the waste liquid from the production of cumyl peroxide.

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Abstract

The invention relates to the technical field of initiator production waste liquid recycling, and particularly relates to a method for recycling potassium chloride and organisms from the initiator production waste liquid. The method comprises the following steps of: (I) adding the collected initiator production waste liquid into a glass reaction kettle; and (II) starting a stirrer to stir, adding hydrochloric acid into the glass reaction kettle to conduct a neutralization reaction with the initiator production waste liquid; and when the pH value of the initiator production waste liquid reaches 6.5-7.5, stopping stirring, and standing for 1-2 hours until the initiator production waste liquid is divided into an upper layer and a lower layer. According to the invention, hydrochloric acid is added into the initiator production waste liquid to conduct a neutralization reaction and the reaction liquid is divided into an upper layer and a lower layer after the neutralization reaction, wherein the upper layer consists of organisms, and the aqueous phase containing potassium chloride on the lower layer is evaporated, separated and dried to obtain potassium chloride; and the method provided by the invention has the characteristics of stability and reliability, environmental protection, high recovery rate of potassium chloride and organisms and high purity of potassium chloride, reduces the production cost and avoids resource waste.

Description

technical field [0001] The invention relates to the technical field of initiator production waste liquid recovery, and relates to a method for recovering potassium chloride and organic matter from initiator production waste liquid. Background technique [0002] A large amount of waste liquid can be produced in the synthetic process of initiator peroxy neodecanoate tert-butyl ester and cumyl peroxy neodecanoate, and the main components of waste liquid are potassium chloride of by-product and unreacted organic Raw materials (mainly tert-butyl hydroperoxide and cumene hydroperoxide), each ton of tert-butyl neodecanoate or cumyl peroxydecanoate product produces about one ton of waste liquid , Each ton of waste liquid contains 200kg to 250kg of potassium chloride and 60kg to 120kg of organic matter. At present, the waste liquid is usually discharged into the sewage treatment system, which not only brings adverse effects on the environment, but also wastes scarce potassium chlori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/66C01D3/04C02F103/36
Inventor 张惠斌朱毅
Owner 乌鲁木齐市华泰隆化学助剂有限公司