About Us

MINEVIK Machinery is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants and beneficiation plants.

large-scale crushing & screening plants and beneficiation plants.

All of our equipment have got ISO international quality system certification, European Union CE certification and Russian GOST certification.

  • In central China-Zhengzhou, covering 140 thousand square meters
  • Win-win cooperation and create more value to customers
  • Exported large quantities and high-end mobile crushing plant and milling equipments to Russia, Kazakhstan, Indonesia, Ecuador, South Africa, Nigeria, Turkey more than 100 countries .

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Our Products

AS a leading global manufacturer of crushing and milling equipment, we offer including quarry, aggregate, grinding production and complete stone crushing plant. We also supply individual crushers and mills as well as spare parts of them.

Services

Our goal is to guarantee the excellent operation equipment with high safety for our customers and minimize the downtime of the machine by predictive maintenance. Kefid service and original accessories can be 100% trusted at the time of maintenance.

SERVICE AND SUPPORT

Minevik service and original accessories can be 100% trusted at the time of maintenance.

ACCESSORIES CENTER

striving to enable customers to get the parts in the nearest place.

SALES MARKET

Our sales market is spread all over more than 100 countries and regions

bleach clay extraction process

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Recycling process of spent bleaching clay: Optimization by

bleaching process of used-oil refining, absorbents such as natural bleaching clay, activated bleaching clay, activated carbon and amorphous silicates are used (Ismadji, et al., 2015Mostly clay-bentonite ). type, which has a high bleaching potential, is used to remove the smell and the color of the product (Yildiz et al., 2004). Spent bleaching

Cited by: 4

Optimization of Bleaching Process Lipid Library

The bleaching clay, for the most part, is one of the most stable variables in the refining process. Figure 15. Factors that can affect the adsorption process. Summary. To the untrained operator, the bleaching process is a simple operation that works merely to improve oil

Processing Edible Oils Penn State Extension

Dec 12, 2013· Bleaching clay is a type of clay dug primarily in the southern United States. It may be either natural clay or activated with an acid wash. Activated clay will attract and hold more compounds than natural clay. Natural clay is used for bleaching of certified organic oils.

Use of bleaching, clays, in processing edible oils

Bleaching of fats and oils is a process where by the clay adsorbent is mixed intimately with the oil under specified conditions to remove unwanted color bodies and other contaminants. This paper describes the process and discusses the parameters and economics involved.

Cited by: 84

CN104830540A Industrial spent bleaching clay leaching

The invention discloses an industrial spent bleaching clay leaching and oil extraction process and an application of regenerated bleaching clay in a pesticide solid preparation. The application comprises the following steps: separating grease and bleaching clay which are stored in the bleaching clay by using decolorized spent bleaching clay in the edible oil and fat industry by virtue of a

Author: 朱金珍, 任鹏, 马敏, 平原

Regeneration of Spent Lubricant Refining Clays by Solvent

翻译此页Abstract

Use of bleaching, clays, in processing edible oils

Bleaching of fats and oils is a process where by the clay adsorbent is mixed intimately with the oil under specified conditions to remove unwanted color bodies and other contaminants. This paper describes the process and discusses the parameters and economics involved.

US6780321B2 Recovery of oil from spent bleached earth

The invention discloses a process to recover oil from spent bleaching earth recovered from vegetable oil refining process. The process involve three sub-processes comprising of reacting the spent bleaching earth with a solvent selected from a group consisting of toluene, acetone, xylene, isopropyl alcohol or n-hexane at a temperature between 35° C. to 50° C.; separating the solids and liquid

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11.25 Clay Processing

11.25 Clay Processing 11.25.1 Process Description1-4 Clay is defined as a natural, earthy, fine-grained material, largely of a group of crystalline hydrous silicate minerals known as clay minerals. Clay minerals are composed mainly of silica, alumina, and water, but they may also contain appreciable quantities of iron, alkalies, and alkaline

Cannabis Extractions: The Complete Guide | by Lucie

Jan 06, 2017· Extraction of cannabis is a simple process, which people have used for centuries. There are many records of people using cannabis tea, hash or tinctures in

Supercritical carbon dioxide extraction of spent bleaching

Mar 01, 1992· Extraction of the clay can be facilitated by crossblending the clay with a diatomaceous earth-based dispersant. The oils recovered by the supercritical fluid extraction (SFE) process have properties (free fatty acid content, Lovibond color ratio, and phosphorus content) similar to those found for degummed-bleached oils.

CN104830540A Industrial spent bleaching clay leaching

The invention discloses an industrial spent bleaching clay leaching and oil extraction process and an application of regenerated bleaching clay in a pesticide solid preparation. The application comprises the following steps: separating grease and bleaching clay which are stored in the bleaching clay by using decolorized spent bleaching clay in the edible oil and fat industry by virtue of a

Regeneration of Spent Lubricant Refining Clays by Solvent

Solvent extraction processes for recovery of oil from spent bleaching clay have been suggested. Solvent extraction provides a higher yield and a better quality of oil than other methods. Some researchers have adopted a mixed approach to regenerate used clay: solvent extraction plus acid washing and/or heat treatment are used in conjunction.

Use of bleaching, clays, in processing edible oils

Bleaching of fats and oils is a process where by the clay adsorbent is mixed intimately with the oil under specified conditions to remove unwanted color bodies and other contaminants. This paper describes the process and discusses the parameters and economics involved.

Refinement, distillation, centrifuge processing, and

Jan 13, 2019· If the refinement process is intended to keep some of the fatty acids, especially the easy to degrade alpha-linoleic acid, a ‘bleaching’ process can be used with a bleaching clay or type of betonite clay, this restores lost electrons to the degraded

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Research Article Regeneration of Spent Lubricant Refining

Zahrani designed extraction experiments on spent bleach-ing clay to recover oil using methyl ethyl ketone (MEK), acetone, petroleum ether, and hexane solvents at optimum conditions. Reactivation of the deoiled clays by calcination was investigated. e bleaching e ciency of the reactivated clays varied between and % [, ]. Nebergall et al.

Color Remediation in BHO Extraction | What is CRC & How to

Achieving color remediation using a CRC is a relatively simple process, as the CRC is simply added on as an additional step in your extraction equipment setup. The desired media is dried and subsequently packed into the column. For simple color remediation the most common media combination is a mix of bentonite clay and silica gel.

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Vegetable Oil Processing US EPA

May 20, 1996· bleaching step, the refined oil is treated with bleach clay and then transferred to a vacuum bleaching tank. Following the bleaching step, the spent clay is filtered from the oil and the refined, bleached oil is ready for the deodorizing step. Prior to the deodorizing step, the bleached oil may be hydrogenated

(PDF) Regeneration of Spent Lubricant Refining Clays by

Step-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and nonpolar solvents were tested, and petroleum

Polishing Dark Extracts: Carbon Scrubbing & Diatomaceous

Sep 22, 2018· To help crafters make that decision this post will explain a simple way to perform the polishing, using activated carbon powder for scrubbing to lighten the color and diatomaceous earth for very fine filtering, provide a side by side comparison of polished and unpolished results from the same extraction, and look at what was lost in the process.

(PDF) Green Extraction Process for Oil Recovery Using

SECE is demonstrated for the extraction of residual oil from spent bleaching clay (SBC, i.e. waste from the palm oil refining processes), as well as from various waste products in the milling

Bleaching clays, mineral adsorbents and catalytic

The most effective bleaching technology for oil and biodiesel purification. A wide range of bentonite bleaching clays (also known as Fuller’s Earth) with various levels of activation. For oil bleaching, color removal and purification of any edible oil including canola, soybean, coconut, palm,

Regeneration of spent bleaching clay by ultrasonic

Request PDF | Regeneration of spent bleaching clay by ultrasonic irradiation and its application in methylene blue adsorption | An effective method that combines solvent extraction with ultrasonic

Oil removal from spent bleaching clay by solvent extraction

Regeneration of spent bleaching clay used in edible oil refining in Saudi Arabia was studied using solvent extraction, boil-off method and calcination. The Solvent extraction method entails the

Use of bleaching, clays, in processing edible oils

Bleaching of fats and oils is a process where by the clay adsorbent is mixed intimately with the oil under specified conditions to remove unwanted color bodies and other contaminants. This paper describes the process and discusses the parameters and economics involved.

Oil and Oilseed Processing II | Oklahoma State University

Today, extraction of specialty and high value oils and recovery of oil from spent bleaching clay are carried out in batch extractors. A rotating drum and a vertical cylindrical kettle equipped with a vapor tight cover and a low speed agitator are two popular batch type extractor designs.

Oil removal from spent bleaching clay by solvent extraction

Regeneration of spent bleaching clay used in edible oil refining in Saudi Arabia was studied using solvent extraction, boil-off method and calcination. The Solvent extraction

(PDF) Green Extraction Process for Oil Recovery Using

SECE is demonstrated for the extraction of residual oil from spent bleaching clay (SBC, i.e. waste from the palm oil refining processes), as well as

[PDF]

Techno-economical Evaluation of Oil Recovery and

more, the disposal of spent bleaching clay in landfills can cause environmental pollution problems in addition to being a source of odors and fire hazards. This paper describes a process for the recovery of oil from spent bleaching clay by solvent extraction followed by reactivation of the deoiled clay by acid treatment.

Color Remediation in BHO Extraction | What is CRC & How to

Achieving color remediation using a CRC is a relatively simple process, as the CRC is simply added on as an additional step in your extraction equipment setup. The desired media is dried and subsequently packed into the column. For simple color remediation the most common media combination is a mix of bentonite clay and silica gel.

Regeneration of spent bleaching clay by ultrasonic

Request PDF | Regeneration of spent bleaching clay by ultrasonic irradiation and its application in methylene blue adsorption | An effective method that combines solvent extraction

(PDF) Regeneration of Spent Lubricant Refining Clays by

Step-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and

Bleaching clays, mineral adsorbents and catalytic

The most effective bleaching technology for oil and biodiesel purification. A wide range of bentonite bleaching clays (also known as Fuller’s Earth) with various levels of activation. For oil bleaching, color removal and purification of any edible oil including canola, soybean, coconut, palm, fish and sunflower oils, and tallow.

Revalorization of Spent Bleaching Earth a Waste from

Apr 30, 2018· In search of an efficient method for the revalorization of spent bleaching earth (SBE), a waste from vegetable oil refinery plant, three different solvent extraction strategies were adopted. Acetone (A), n-hexane (H), and n-hexane/acetone (HA) solvent systems were used for the extraction of the remnant polar and nonpolar organic compounds of the SBE.

What is Activated Clay? (with picture)

Dec 22, 2020· Bleaching clay is used in materials processing in a variety of industries to pull out pigments, as seen for example in paper processing. It can also be used to purify and refine oils by pulling out impurities and pigments and leaving the clean oil behind.

Oil recovery from spent bleaching earth and disposal of

M.A. Sedghamiz, F. Attar, S. Raeissi, Experimental investigation of acid regeneration of spent bleaching clay de-oiled by the in-situ transesterification process at various operating conditions, Process Safety and Environmental Protection, 10.1016/j.psep.2019.01.029, (2019).

Regeneration of Spent Clay in Used Oil Re-refining Process

Results showed that extraction process, using just solvent, is insufficient to recover the bleaching power of the spent clay, needing then a further high temperature treatment.

Carbon Chemistry T-41 Acid Activated Bleaching Clay

Carbon Chemistry T-41 Acid Activated Bleaching Clay Acid-activated bentonite clay ( or activated bleaching clay ) is an excellent filtration media. The clay is rich in carbon, and it has a low pH. This product is most commonly used during oil purification, distillation preparation, pesticide removal, and product improvement (odor removal).

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