Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of scrubber and washing device and the method for purifying polyolefin catalyst

A polyolefin catalyst and washing device technology, applied in the field of separation and purification, can solve the problems of large amount of solvent, low washing efficiency, and long washing time, and achieve the effect of small amount of solvent, high washing efficiency, and short washing time

Active Publication Date: 2021-02-05
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to overcome the defects of long washing time, low washing efficiency and large amount of solvent used in the existing process of purifying polyolefin catalysts, and provide a scrubber and washing machine capable of short washing time, high washing efficiency and small amount of solvent. Apparatus and method for purifying polyolefin catalysts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of scrubber and washing device and the method for purifying polyolefin catalyst
  • A kind of scrubber and washing device and the method for purifying polyolefin catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The washing device comprises 4 aforementioned scrubbers connected in series in succession, so that the material (flow rate is 0.4kg / h) enters the washing device from the feed inlet of the second chamber of the first scrubber (after washing, it is discharged from the last scrubber) The third chamber of the washer is discharged from the discharge port), and at the same time, normal hexane (flow rate is 30kg / h) enters the washing device from the feed port of the first chamber of the last scrubber (after being contacted with the material and washed from the first The third chamber of a scrubber is discharged by the discharge port), and the contact time of each scrubber in the scrubber for the material and normal hexane is 3h. After the material is washed, the content of the polyolefin catalyst in the washed material is measured. The content was 43.1% by weight, and the titanium content was 0.23 mg / mL.

Embodiment 2

[0042] The washing device comprises 3 aforementioned scrubbers connected in series in succession, so that the material (flow rate is 0.5kg / h) enters the washing device from the feed port of the second chamber of the first scrubber (after washing, it is washed from the last scrubber) The third chamber of the washer is discharged from the discharge port), and at the same time, normal hexane (flow rate is 25kg / h) enters the washing device from the feed port of the first chamber of the last scrubber (after contacting with the material and washing, from the first The third chamber of a scrubber is discharged by the discharge port), and the contact time of each scrubber in the scrubber for the material and normal hexane is 4h. After the material is washed, the content of the polyolefin catalyst in the washed material is measured. The content was 41.7% by weight, and the titanium content was 0.27 mg / mL.

Embodiment 3

[0044] The washing device comprises 6 aforementioned scrubbers connected in series in succession, so that the material (flow rate is 1kg / h) enters the washing device from the feed inlet of the second chamber of the first scrubber (after washing, from the last scrubber) The third chamber is discharged by the discharge port), and at the same time, normal hexane (flow rate is 30kg / h) enters this washing device from the feed inlet of the first chamber of the last scrubber (after contacting and washing with the material, from the first The third chamber of each scrubber is discharged from the discharge port), the contact time of the material and n-hexane in each scrubber in the washing device is 2h, after the material is washed, the content of polyolefin catalyst in the washed material is measured. It was 42.5% by weight, and the content of titanium was 0.31 mg / mL.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
areaaaaaaaaaaa
areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of separation and purification, and discloses a scrubber, a washing device and a method for purifying polyolefin catalysts. The scrubber includes a first chamber and a second chamber separated by a first partition and a second partition and the third chamber, wherein the first partition is provided with a plurality of small holes that allow the materials in the first chamber to pass through and can prevent most of the materials in the second chamber from entering the first chamber, the second partition The bottom of the plate is provided with an opening, the first chamber and the second chamber are respectively provided with feed ports, and a separation mechanism is provided in the third chamber, and the separation mechanism can make the washed material and the washed agent separation, the third chamber is also provided with at least two outlets for discharging the washed materials and detergent out of the washer respectively. The method of the invention has the advantages of short washing time, high impurity extraction rate and small solvent consumption, and can realize dynamic cycle continuous washing and purification process.

Description

technical field [0001] The invention relates to the field of separation and purification, in particular to a scrubber, a scrubber and a method for purifying a polyolefin catalyst. Background technique [0002] The polyolefin industry is an important symbol of the development of a country's petrochemical industry. Since the new century, the production capacity of the world's polyolefin industry has increased substantially, and the world market is in a state of oversupply. In this situation, only by intensifying research and development efforts and mastering and adopting new process conditions can we effectively reduce costs and improve the added value and competitiveness of the industry. [0003] In the new century, with the pressure of environmental protection and the increasingly tense trend of energy, the green environmental protection in catalyst production has become more important. Developing green and environment-friendly production processes, making full use of ener...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F10/00C08F10/02C08F4/64C08F4/651B01D11/00
CPCB01D11/00C08F10/00C08F10/02C08F4/64C08F4/651
Inventor 孙汝柳过良王宇飞王婧
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com