Spray dryer, spray dry method, and polymer powder

A spray dryer and dryer technology, which is used in drying solid materials, heating to dry solid materials, drying, etc., can solve problems such as unsatisfactory industry

Active Publication Date: 2009-04-15
MITSUBISHI CHEM CORP
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, a mechanism for realizing the abov

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
  • Spray dryer, spray dry method, and polymer powder
  • Spray dryer, spray dry method, and polymer powder
  • Spray dryer, spray dry method, and polymer powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0096] Hereinafter, the present invention will be described in more detail through examples, but the present invention is not limited to the above examples.

[0097] Hereinafter, unless otherwise specified, "part" means a mass part, and "%" means a mass percentage.

[0098] (solid content of polymer latex)

[0099] The solid content of the polymer latex was measured in the following procedure.

[0100] 1. Use an electronic balance to measure the mass of the aluminum pan (mass 1).

[0101] 2. Put approximately 10 g of polymer latex into the aluminum pan, and measure the overall mass (mass 2).

[0102] 3. Use a hot air dryer to dry the above sample at 120°C for 2 hours.

[0103] 4. Put the dried sample into the desiccator and cool it down.

[0104] 5. Measure the mass of the sample after cooling (mass 3).

[0105] 6. Calculate the solid content of the polymer latex by the following calculation.

[0106] Solid content of polymer latex=(mass 2-mass 1) / (mass 3-mass 1)×100%

...

manufacture example 1

[0111] Manufacture of polymer latex (A):

[0112] The following raw material mixture was placed in a separable flask (separable frasco) including a thermometer, a cooling pipe, a nitrogen gas introduction pipe, and a stirring blade, and nitrogen replacement was carried out, and then the temperature was raised while stirring.

[0113] Raw material mix:

[0114] Dipotassium alkenyl succinate 1 part

[0115] Methyl methacrylate 80 parts

[0116] Butyl acrylate 20 parts

[0117] n-n-octyl mercaptan 0.03 parts

[0118] 260 parts of deionized water

[0119] When the temperature in the flask reached 45° C., the following initiator mixture was put into the flask to start polymerization. It was kept at 69° C. for 2 hours to complete the polymerization.

[0120] Initiator mix:

[0121] Potassium persulfate 2.0 parts

[0122] 10 parts deionized water

[0123] The obtained polymer latex (A) had a solid content of 26.9%, and a mass average particle diameter of 90 nm.

manufacture example 2

[0125] Manufacture of polymer latex (B):

[0126] The following raw material mixture was placed in a detachable flask including a thermometer, a cooling pipe, a nitrogen gas introduction pipe, and a stirring blade, and after nitrogen substitution, temperature rise was started while stirring.

[0127] Raw material mix:

[0128] Sodium lauryl sulfate 0.0017 parts

[0129] (エマ一ル2Fニニドル: Kao (stock) production)

[0130] 11.9 parts of methyl methacrylate

[0131] Butyl acrylate 5.1 parts

[0132] 52.9 parts of deionized water

[0133] When the temperature in the flask reached 80° C., the following initiator mixture was put into the flask to start polymerization.

[0134] Initiator mix:

[0135] Potassium persulfate 0.006 parts

[0136] 4 parts deionized water

[0137] After 45 minutes from the start of the polymerization, the emulsified dispersion liquid described below was divided into 100 parts and dropped therein. While dropping the emulsified dispersion liquid, the inte...

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
Diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Heightaaaaaaaaaa
Login to view more

Abstract

A dryer having a circular tubular first straight barrel section opened at its both upper and lower ends, a substantially circular conical first cone section contiguously provided at the upper end of the first straight barrel section and upwardly reduced in diameter, a circular tubular second straight barrel section contiguously provided at the upper end of the first cone section, a spray device for spraying a solution or dispersed solution of solids, a flow straightener for straightening the flow of a drying gas, and a gas supply opening for supplying the drying gas. The spray opening of the spray device is placed inside the second straight barrel section. The straightener is placed inside the second straight barrel section, over the spray opening. The gas supply opening is placed above the straightner.

Description

technical field [0001] The present invention relates to a spray dryer used for drying a solid solution or dispersion, a spray drying method using the spray dryer, and a polymer powder obtained by the spray drying method. [0002] This application claims priority based on Patent No. 2006-102934 filed on April 4, 2006, and its content is cited here. Background technique [0003] The method of obtaining dry particles from a solid solution or dispersion using a spray dryer is widely used in the food industry, pharmaceutical industry, and chemical industry. A spray dryer has conventionally been widely used as an apparatus for obtaining dried particles of various materials such as organic materials and inorganic materials. [0004] Figure 4 The conventional spray dryer shown mainly has a drier 100 that can dry a solid solution or a dispersion by spraying a solid solution or a dispersion and supplying a drying gas. [0005] On the upper part of the dryer 100, a spray device 110 ...

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
IPC IPC(8): F26B3/12C08F6/14C08J3/12F26B17/10
CPCC08F6/14C08F6/12F26B3/12C08J3/12F26B17/10
Inventor 面手昌树川部贞治
Owner MITSUBISHI CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap