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Apparatus, system and method for emulsifying oil and water

A technology of emulsifying water and equipment, applied in chemical instruments and methods, emulsification, mixing methods, etc., can solve problems such as poor sizing efficiency

Active Publication Date: 2012-08-15
SOLENIS TECH CAYMAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] There is still a need in the market for simpler, low cost ASA emulsification equipment that does not cause runnability problems (foam, deposits) in paper machines due to high surfactant loading or poor emulsification quality and / or poor sizing efficiency

Method used

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  • Apparatus, system and method for emulsifying oil and water
  • Apparatus, system and method for emulsifying oil and water
  • Apparatus, system and method for emulsifying oil and water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Feed 150 l / h of water as continuous phase to e.g. Figure 2-4 The first inlet of the venturi device shown. The water feed pressure was 30 bar. The nozzle diameter of the continuous phase (i.e. image 3 The diameter of the nozzle 66 in) is 1 mm. The PREQUEL 20F sizing agent (ASA) dispersed phase was fed by vacuum at 15 kg / h into the suction inlet of the venturi device. The diameter of the mixed phase nozzle (i.e. image 3 The diameter of the middle nozzle 60) is 2 mm. The Venturi velocity in the continuous phase nozzle was 53 m / s. The median particle size of the emulsion was 0.67 μm.

Embodiment 2

[0083] Feed 170 l / h of water as continuous phase to e.g. Figure 2-4 The first inlet of the venturi device shown. The water feed pressure was 30 bar. The nozzle diameter of the continuous phase (i.e. image 3 The diameter of the nozzle 66 in) is 1 mm. The PREQUEL 20F sizing agent (ASA) dispersed phase was fed by vacuum at 27 kg / h into the suction inlet of the venturi device. The diameter of the mixed phase nozzle (i.e. image 3 The diameter of the middle nozzle 60) is 2 mm. The Venturi velocity in the continuous phase nozzle was 60 m / s. The median particle size of the emulsion was 0.67 μm.

Embodiment 3

[0085] Feed 80 l / h of water as continuous phase to e.g. Figure 2-4 The first inlet of the venturi device shown. The water feed pressure was 31 bar. The nozzle diameter of the continuous phase (i.e. image 3 The diameter of the nozzle 66 in) is 0.8mm. The PREQUEL 20F sizing agent (ASA) dispersed phase was fed by vacuum at 8 kg / h into the suction inlet of the venturi device. The diameter of the mixed phase nozzle (i.e. image 3 The diameter of the middle nozzle 60) is 1.6 mm. The Venturi velocity in the continuous phase nozzle was 44 m / s. The median particle size of the emulsion was 0.82 μm.

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Abstract

The invention relates to a device, system and method for emulsifying oil and water, so as to emulsify a gluing agent to be used in the treatment of paper or cardboard, involving feeding a continuous phase under pressure through a nozzle (66) providing a continuous phase of a Venturi device (50) and into a mixing section. A dispersed phase is optionally fed under pressure into the mixing section (80) of the Venturi device. The emulsion formed in the mixing section is channeled through a nozzle (60) for mixed phase and out of the Venturi device. The diameter of the nozzle (60) for a mixed phase of the Venturi device is greater than the diameter of the nozzle (66) for a continuous phase by a ratio greater than 1:1 and less than 4:1.

Description

technical field [0001] The present invention relates to apparatus, systems and methods for emulsifying oil and water, in particular for the preparation of aqueous emulsions of sizing agents for internal or surface sizing of paper and board, or for Inversion of invert emulsion polymer products for the treatment of paper and board. Background technique [0002] Additives used in the paper industry to impart resistance to aqueous penetrants are commonly referred to as sizing agents. The two most common synthetic sizing agents are alkyl ketene dimer (AKD) and alkenyl succinic anhydride (ASA). [0003] AKD and ASA are hydrophobic, water-insoluble materials. These materials can be added to the pulp prior to sheet formation, known as internal sizing, or can be coated on the surface of the formed web, known as surface sizing. For each application, the sizing agent should be well dispersed in the aqueous system to be effective. For this reason, these water-insoluble additives are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/08B01F5/04D21H21/16B01F25/46
CPCD21H17/16D21H17/17D21H21/16B01F23/41B01F25/31243B01F25/312B01F23/40B01F25/30
Inventor O·马尼埃
Owner SOLENIS TECH CAYMAN