Method for surface modification of heavy calcium carbonate by utilization of drainage oil

A technology of heavy calcium carbonate and surface modification, applied in the field of surface treatment of non-metallic minerals, to achieve the effects of saving production costs, significant social value, and good promotion value

Active Publication Date: 2015-10-28
广西康利岗石有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After retrieval, there has never been any report on the use of waste oil to synth

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1:

[0019] (1) Centrifuge the waste oil to remove suspended solids, dry and dehydrate, and decolorize with active whites.

[0020] (2) Take 100g of decolorized waste oil, add 50g of water, 0.4g of sodium dodecylbenzene sulfonate, and 3g of 98% concentrated sulfuric acid. Under stirring, heat to reflux at 85°C. After reacting for 4 hours, directly Heat to above 100°C for high-temperature demulsification. After reacting for 10 minutes, pour the hydrolysate into a separatory funnel, and let stand for layering.

[0021] (3) The water layer is released, the oil layer is washed twice with water, and the oil layer is separated with a rotary evaporator at 80°C to remove water and low-boiling fractions to obtain a modifier for surface modification of heavy calcium carbonate. . The acid value of the modifier increased from 0.3349mgKOH / g to 28.8547mgKOH / g.

[0022] (4) Take 100 g of heavy calcium carbonate, add 1000 g of water, and add 4 g of a modifier synthesized by using was...

Example Embodiment

[0023] Example 2:

[0024] (1) Centrifuge the waste oil to remove suspended solids, dry and dehydrate, and decolorize with activated clay.

[0025] (2) Take 100g of decolorized waste oil, add 75g of water, 0.5g of sodium dodecylbenzene sulfonate, and 3g of 98% concentrated sulfuric acid. Under stirring, heat to reflux at 90°C. After reacting for 4 hours, directly Heat to above 100°C for high-temperature demulsification. After reacting for 10 minutes, pour the hydrolysate into a separatory funnel, and let stand for layering.

[0026] (3) The water layer is released, the oil layer is washed twice with water, and the oil layer is separated with a rotary evaporator at 80°C to remove water and low-boiling fractions to obtain a modifier for surface modification of heavy calcium carbonate. . The acid value of the modifier increased from 0.3349mgKOH / g to 28.4475mgKOH / g.

[0027] (4) Take 100 g of heavy calcium carbonate, add 1000 g of water, and add 3 g of a modifier synthesized by using wa...

Example Embodiment

[0028] Example 3:

[0029] (1) Centrifuge the waste oil to remove suspended solids, dry and dehydrate, and decolorize with activated clay.

[0030] (2) Take 100g of decolorized waste oil, add 50g of water, 0.5g of sodium dodecylbenzene sulfonate, and 3g of 98% concentrated sulfuric acid. Under stirring, heat to reflux at 85°C. After reacting for 5 hours, directly Heat to above 100°C for high-temperature demulsification. After reacting for 10 minutes, pour the hydrolysate into a separatory funnel, and let stand for layering.

[0031] (3) The water layer is released, the oil layer is washed twice with water, and the oil layer is separated with a rotary evaporator at 80°C to remove water and low-boiling fractions to obtain a modifier for surface modification of heavy calcium carbonate. . The acid value of the modifier increased from 0.3349mgKOH / g to 32.4599mgKOH / g.

[0032] (4) Take 100 g of heavy calcium carbonate, add 1000 g of water, and add 3 g of a modifier synthesized by using wa...

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
Acid valueaaaaaaaaaa
Sedimentation volumeaaaaaaaaaa
Oil absorption valueaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for surface modification of heavy calcium carbonate by the utilization of drainage oil. A synthesis method of a modifier comprises the following steps: (a) drainage oil is purified and refined; (b) hydrolysis is conducted by the use of the purified and refined drainage oil; and (c) moisture and low-boiling fraction are removed from a hydrolysate by a rotary evaporator so as to obtain the modifier for surface modification of heavy calcium carbonate. By the use of the drainage oil for surface modification of heavy calcium carbonate, surface activity of heavy calcium carbonate can be enhanced, dispersity of heavy calcium carbonate can be raised, and oil-adsorbed value of heavy calcium carbonate can be reduced. The active heavy calcium carbonate prepared by the method can be widely applied in fields of plastic, paint, rubber, papermaking and the like, and can be used as a functional filler. As the modifier used in the invention is synthesized by the use of drainage oil, the technical scheme of the invention is of great significance for waste utilization, food safety, powder modification and the like.

Description

technical field [0001] The patent of the present invention relates to a surface treatment method of non-metallic minerals, in particular to a method for surface modification of heavy calcium carbonate using waste oil. Background technique [0002] Waste oil is a non-edible oil with extremely poor quality and sanitation, and its peroxide value, acid value, moisture, carbonyl value, malondialdehyde and other indicators seriously exceed the standard. Greasy floating matter or the oil obtained by simple processing and refining of leftovers and leftovers in hotels and restaurants; the second is the oil processed and refined from inferior pork, pig offal, and pig skin; the third is the oil used for fried food After the number of times exceeds the specified requirements, it is reused or re-used after adding some new oil to it. Compared with edible oil, the heavy metals and toxins in waste oil seriously exceed the standard, and the peroxide value far exceeds the national standard. ...

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): C09C1/02C09C3/08
Inventor 汤泉曾一文张志周国永梁琼芳
Owner 广西康利岗石有限公司
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