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Equipment for continuously producing accelerator TMTD and a method for continuously producing accelerator TMTD

A technology of accelerators and equipment, applied in the direction of organic chemistry, can solve problems such as low labor efficiency, product quality differences, and long reaction cycles in intermittent production

Pending Publication Date: 2021-09-14
SHANDONG SUNSINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a continuous production accelerator TMTD equipment and a method for continuous production of the accelerator TMTD, which solves the problems of salty waste water produced by the existing process, long reaction cycle, low labor efficiency of intermittent production, and batch-to-batch failure. There are many defects such as differences in product quality between

Method used

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  • Equipment for continuously producing accelerator TMTD and a method for continuously producing accelerator TMTD
  • Equipment for continuously producing accelerator TMTD and a method for continuously producing accelerator TMTD

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]A continuous production accelerator TMTD equipment includes a high-gravity reactor, a water washing device and a drying device.

[0049] A feed port 711 and an exhaust port 712 are set on the top of the supergravity reactor. The feed port 711 is connected to a dimethylamine metering pump 1, a carbon disulfide metering pump 2, and an ethanol metering pump 3 through pipelines, and each metering pump is connected through a pipeline. Corresponding raw material storage tanks, and dimethylamine flow regulating valve group 4, carbon disulfide flow regulating valve group 5 and ethanol flow regulating valve group 6 are respectively installed on the pipeline, and different raw materials are pumped into the feed port 711 for reaction with respective metering pumps , in order to ensure that the raw materials are evenly mixed, the feed port 711 is equipped with a distributor at the end of the three pipelines, and the exhaust port 712 is connected to the RTO through the pipeline.

[0...

Embodiment 2

[0057] A method for continuous production of accelerator TMTD, using the above-mentioned continuous production of accelerator TMTD equipment, the specific steps include:

[0058] S1, open the feed port of the supergravity reactor 7, the exhaust port 712 and the discharge port 715, open the supergravity reactor 7, open the supergravity reactor jacket 78, the first rotating disk 72, and the second rotating disk 75 , The chilled water inlet and outlet valves of the fixed plate 74.

[0059] S2, open dimethylamine flow regulating valve group 4, carbon disulfide flow regulating valve group 5 and ethanol flow regulating valve group 6, open dimethylamine metering pump 1, carbon disulfide metering pump 2 and ethanol metering pump 3, simultaneously dimethylamine with 0.1L / min (the content of dimethylamine is 40%), carbon disulfide at 0.06L / min and ethanol at 0.20L / min are pumped into the supergravity reactor 7, the reaction temperature of dimethylamine and carbon disulfide is 20-30℃, tw...

Embodiment 3

[0066] A method for continuous production of accelerator TMTD, using the above-mentioned continuous production of accelerator TMTD equipment, the specific steps include:

[0067] S1, open the feed port of the supergravity reactor 7, the exhaust port 712 and the discharge port 715, open the supergravity reactor 7, open the supergravity reactor jacket 78, the first rotating disk 72, and the second rotating disk 75 , The chilled water inlet and outlet valves of the fixed plate 74.

[0068] S2, open dimethylamine flow regulating valve group 4, carbon disulfide flow regulating valve group 5 and ethanol flow regulating valve group 6, open dimethylamine metering pump 1, carbon disulfide metering pump 2 and ethanol metering pump 3, simultaneously dimethylamine with 0.15L / min (dimethylamine content is 40%), carbon disulfide at 0.09L / min and ethanol at 0.40L / min are pumped into the supergravity reactor, the reaction temperature of dimethylamine and carbon disulfide is 20-30℃, dimethylam...

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Abstract

The invention relates to equipment for continuously producing accelerator TMTD and a method for continuously producing the accelerator TMTD. The equipment comprises a supergravity reactor, a washing device and a drying device, wherein a feeding port and an exhaust port are formed in the top of the supergravity reactor, and the feeding port is connected with a dimethylamine metering pump, a carbon disulfide metering pump and an ethanol metering pump through pipelines; a discharge hole is formed in the bottom of the supergravity reactor, and a hydrogen peroxide inlet is also formed between the top and the bottom of the supergravity reactor; the washing device comprises a vacuum belt filter provided with a feeding port, a discharging port and a mother liquor outlet, the feeding port communicates with the discharging port, and the vacuum belt filter is connected with a washing pipe; and the drying device is provided with a drying inlet and a drying outlet, the drying inlet is connected to the discharging port, and an automatic temperature controller is installed in the drying device. The equipment and the method of the invention overcome the defects that salt-containing wastewater is generated, a reaction period is long, the labor efficiency of intermittent production is low, the quality of products in batches is different and the like in the prior art.

Description

technical field [0001] The invention relates to the technical field of production of fine chemical products, in particular to a device for continuously producing accelerator TMTD and a method for continuously producing accelerator TMTD. Background technique [0002] Accelerator TMTD is an ultra-fast accelerator for rubber vulcanization, suitable for natural rubber, synthetic rubber and latex. At present, accelerator TMTD is the most produced variety among thiuram accelerators in China. In addition, the accelerator TMTD can be used as insecticide and fungicide, seed soaking agent and so on in agriculture. [0003] At present, the production of the accelerator TMTD in the industry mainly adopts a two-step process. The condensation of dimethylamine and carbon disulfide and the synthesis of TMTD are carried out in different processes, and the process flow is relatively long. The production of TMTD generally adopts kettle-type intermittent operation. Due to the frequent operatio...

Claims

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Application Information

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IPC IPC(8): C07C333/32
CPCC07C333/32C07C333/14
Inventor 薛香菊刘天宇朱国旭王健王梅芝
Owner SHANDONG SUNSINE CHEM
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