阅读说明：本技术 一种可提高原料资源利用率的氯化石蜡生产工艺 (Chlorinated paraffin production process capable of improving utilization rate of raw material resources ) 是由 鞠其发 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种可提高原料资源利用率的氯化石蜡生产工艺,本发明具体包括以下步骤：S1、原料的初始氯化反应,S2、中级氯化反应,S3、氧含量的检测,S4、氯化石蜡的成形,本发明涉及氯化石蜡生产技术领域。该可提高原料资源利用率的氯化石蜡生产工艺,本发明年产8000吨氯化石蜡、工艺成熟、可靠,可实现既方便又高效的对氯化石蜡进行生产加工,实现通过对氯化石蜡的生产工艺进行优化,来提高氯化石蜡的生产效率和降低氯化石蜡的生产成本,大大提高了氯化石蜡生产工艺生产效率,很好的简化了生产工艺,无需花费生产企业大量生产成本,同时无需花费生产人员大量的工作时间进行生产监管,减轻了生产人员的工作负担。(The invention discloses a chlorinated paraffin production process capable of improving the utilization rate of raw material resources, which specifically comprises the following steps: the method comprises the following steps of S1, initial chlorination reaction of raw materials, S2, middle-grade chlorination reaction, S3, detection of oxygen content, S4 and formation of chlorinated paraffin, and relates to the technical field of chlorinated paraffin production. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources is mature and reliable, 8000 tons of chlorinated paraffin can be produced every year, the chlorinated paraffin can be conveniently and efficiently produced and processed, the production process of the chlorinated paraffin is optimized, the production efficiency of the chlorinated paraffin is improved, the production cost of the chlorinated paraffin is reduced, the production efficiency of the chlorinated paraffin production process is greatly improved, the production process is well simplified, the mass production cost of a production enterprise is not required to be spent, a large amount of working time of production personnel is not required to be spent for production supervision, and the working burden of the production personnel is reduced.)

1. A chlorinated paraffin production process capable of improving utilization rate of raw material resources is characterized by comprising the following steps: the method specifically comprises the following steps:

s1, initial chlorination reaction of raw materials: firstly, adding raw material paraffin oil into a reaction kettle according to a ratio, heating the mixture to 80 ℃ by using steam, introducing chlorine gas, and carrying out chlorination reaction, wherein the reaction of the chlorine gas and the paraffin oil belongs to exothermic reaction, and the temperature in the reaction kettle can be automatically raised to 100 ℃;

s2, intermediate chlorination reaction: immersing a baume densimeter into the reaction solution of the reaction kettle to be detected, controlling the chlorine introduction amount to be 20-22 when the detected baume degree is 0, and observing the color change of the materials in the kettle during the reaction, wherein the chlorine introduction amount and the color change of the materials in the kettle are recorded for 1 time per hour;

s3, detecting the oxygen content: when the chlorination reaction in the step S2 is nearly finished, sampling and measuring baume degree to determine whether the oxygen content reaches the standard;

s4, forming chlorinated paraffin: and (5) when the chlorine content detected in the step (S3) reaches the standard, pumping the reaction material into a refining kettle for air blowing, fully discharging hydrogen chloride gas generated in the chlorination reaction process, and finally adding a stabilizer to fix the color of the chlorinated paraffin to obtain a chlorinated paraffin finished product.

2. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: in the step S1, the chlorine flux is controlled to be between 14 and 16 in the reaction process, namely 1200-1500Nm 3/h.

3. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: the temperature in the reaction kettle in the step S1 is controlled within 100 ℃ and 110 ℃.

4. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: a small bulb is arranged in the reaction kettle in the step S2, the color change of the material can be observed through a glass sight glass of the reaction kettle, and the chlorine introducing amount can be measured through a chlorine flowmeter arranged in the reaction kettle.

5. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: the standard reaching value of baume degree in the step S3 is 1.24-1.26.

6. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: all other time for discharging hydrogen chloride in the step S4 is 55-65min, and the discharged hydrogen chloride tail gas is absorbed and treated by a tail gas absorption device to generate a hydrochloric acid product with a fixed concentration.

7. The chlorinated paraffin production process capable of improving the utilization rate of raw material resources as claimed in claim 1, which is characterized in that: the content of the stabilizer added in the step S4 is 1.5-2.9mL, and the stabilizer is one or a combination of pentaerythritol, xylitol or mannitol.

Technical Field

The invention relates to the technical field of chlorinated paraffin production, in particular to a chlorinated paraffin production process capable of improving the utilization rate of raw material resources.

Background

The chlorinated paraffin is a chlorinated derivative of paraffin, has the advantages of low volatility, flame retardance, good electrical insulation, low price and the like, can be used as a flame retardant and a polyvinyl chloride auxiliary plasticizer, is widely used for producing products such as cable materials, floor materials, hoses, artificial leather, rubber and the like, is applied to additives such as polyurethane waterproof coatings, polyurethane plastic tracks, lubricating oil and the like, is suitable for flame retardance of various products, is widely applied to the industrial fields such as plastics, rubber, fibers and the like as a plasticizer, a surface treatment agent of fabrics and packaging materials, a modifier of bonding materials and coatings, an antiwear agent for high-pressure lubrication and metal cutting processing, a mildew preventive, a waterproof agent and an ink additive, and is divided into a suspension method and a solvent method in the traditional solid chlorinated paraffin production process, but the suspension method has the defects that the water content of the products is difficult to be completely removed, and the solubility and the thermal stability are inferior to those of the solvent method, the solvent method usually carries out two-stage intermittent chlorination reaction, molten paraffin is pre-chlorinated at 95-105 ℃ until the chlorine content is about 40%, then 0.5-6 times of CCl4 solvent is added, the pressure is normal pressure to 6kgf/cm2, the temperature is 70-120 ℃, the reaction time is 12-30 hours, the chlorinated material is washed to pH6.5-7 by water and then is neutralized by alkali to pH7-7.5, direct steam refining can be carried out, the CCl4 stripped out by steam stripping is recycled after condensation separation and drying, and the material after solvent removal is cooled, ground, dried and screened to finally obtain the finished product.

The existing chlorinated paraffin production process is low in production efficiency and complex in production process, needs to spend the mass production cost of production enterprises, cannot realize convenient and efficient production and processing of chlorinated paraffin, cannot realize optimization of the chlorinated paraffin production process to improve the chlorinated paraffin production efficiency and reduce the chlorinated paraffin production cost, needs to spend a large amount of working time of production personnel for production supervision, greatly increases the workload of the production personnel, and is very unfavorable for the production of the chlorinated paraffin of the production enterprises.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a chlorinated paraffin production process capable of improving the utilization rate of raw material resources, and solves the problems that the existing chlorinated paraffin production process is low in production efficiency, complex in production process, and capable of spending mass production cost of production enterprises, cannot realize convenient and efficient production and processing of chlorinated paraffin, cannot realize optimization of the chlorinated paraffin production process to improve the production efficiency of chlorinated paraffin and reduce the production cost of chlorinated paraffin, and needs to spend a large amount of working time of production personnel for production supervision, so that the working burden of the production personnel is greatly increased.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a chlorinated paraffin production process capable of improving utilization rate of raw material resources specifically comprises the following steps:

s1, initial chlorination reaction of raw materials: firstly, adding raw material paraffin oil into a reaction kettle according to a ratio, heating the mixture to 80 ℃ by using steam, introducing chlorine gas, and carrying out chlorination reaction, wherein the reaction of the chlorine gas and the paraffin oil belongs to exothermic reaction, and the temperature in the reaction kettle can be automatically raised to 100 ℃;

s2, intermediate chlorination reaction: immersing a baume densimeter into the reaction solution of the reaction kettle to be detected, controlling the amount of introduced chlorine to be between 20 and 22 when the detected baume degree is 0, paying attention to the color change of the materials in the kettle during the reaction, strengthening the inspection of a chlorine introducing pipeline and chlorine introducing measurement, and recording the color change of the materials in the chlorine introducing pipeline and the chlorine introducing measurement for 1 time per hour;

s3, detecting the oxygen content: when the chlorination reaction in the step S2 is nearly finished, sampling and measuring baume degree to determine whether the oxygen content reaches the standard;

s4, forming chlorinated paraffin: and (5) when the chlorine content detected in the step (S3) reaches the standard, pumping the reaction material into a refining kettle for air blowing, fully discharging hydrogen chloride gas generated in the chlorination reaction process, and finally adding a stabilizer to fix the color of the chlorinated paraffin to obtain a chlorinated paraffin finished product.

Preferably, the step S1 is to control the chlorine amount to be between 14 and 16 during the reaction, namely 1200 and 1500Nm 3/h.

Preferably, the temperature in the reaction kettle in the step S1 is controlled within 100 ℃ and 110 ℃.

Preferably, a small bulb is arranged in the reaction kettle in the step S2, the color change of the material can be observed through a glass sight glass of the reaction kettle, and the chlorine flux can be measured through a chlorine flowmeter arranged in the reaction kettle.

Preferably, the standard reaching value of baume degree in the step S3 is 1.24-1.26.

Preferably, all other time of discharging hydrogen chloride in the step S4 is 55-65min, and the discharged hydrogen chloride tail gas is absorbed by a tail gas absorption device to generate a hydrochloric acid product with a fixed concentration.

Preferably, the content of the stabilizer added in the step S4 is 1.5-2.9mL, and the stabilizer is one or more of pentaerythritol, xylitol or mannitol.

(III) advantageous effects

The invention provides a chlorinated paraffin production process capable of improving the utilization rate of raw material resources. Compared with the prior art, the method has the following beneficial effects: the chlorinated paraffin production process capable of improving the utilization rate of raw material resources specifically comprises the following steps: s1, initial chlorination reaction of raw materials: firstly, adding raw material paraffin oil into a reaction kettle according to a ratio, heating the mixture to 80 ℃ by using steam, introducing chlorine gas, carrying out chlorination reaction, and automatically heating the mixture to 100 ℃ in the reaction kettle because the reaction of the chlorine gas and the paraffin oil belongs to exothermic reaction, S2, and carrying out middle-level chlorination reaction: immersing a baume densimeter into a reaction solution of a tested reaction kettle, controlling the amount of introduced chlorine to be between 20 and 22 when the detected baume degree is 0, paying attention to the color change of materials in the kettle during the reaction, strengthening a chlorine introducing pipeline and the patrol of chlorine introducing measurement, recording the color change of the materials in the chlorine introducing pipeline and the chlorine introducing measurement for 1 time per hour, and detecting S3 oxygen content: when the chlorination reaction in the step S2 is nearly completed, whether the oxygen content reaches the standard is obtained by sampling and measuring the baume degree, S4, forming of chlorinated paraffin: when the chlorine content detected in the step S3 reaches the standard, pumping the reaction material into a refining kettle for air blowing, fully discharging hydrogen chloride gas generated in the chlorination reaction process, finally adding a stabilizer to fix the color of chlorinated paraffin, the invention can obtain the chlorinated paraffin finished product, 8000 tons of chlorinated paraffin is produced every year, the process is mature and reliable, can realize convenient and efficient production and processing of chlorinated paraffin, improves the production efficiency of the chlorinated paraffin and reduces the production cost of the chlorinated paraffin by optimizing the production process of the chlorinated paraffin, greatly improves the production efficiency of the production process of the chlorinated paraffin, well simplifies the production process, does not need to spend the mass production cost of production enterprises, meanwhile, a large amount of working time of production personnel is not needed to be spent for production supervision, and the workload of the production personnel is reduced, so that the production of the chlorinated paraffin of production enterprises is very beneficial.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides five technical solutions: a chlorinated paraffin production process capable of improving utilization rate of raw material resources specifically comprises the following embodiments: