acid clay process

  • Alkylphenol synthesis using acid-modified inorganic clay

    Patent USAAlkylphenol synthesis using acid-modified inorganic clay catalysts (US 5 171 896 A) Owner Huntsman Petrochemical LLC Filed 03/05/1992 Est. priority date 03/05/1992 Status Expired due to Fees Abstract Disclosed is a one step method for synthesis of alkylphenols which comprises reacting phenol with the corresponding olefin under adiabatic conditions in the presence

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  • Acid sulfate soils explained Environment land and water

    Acid sulfate soils are safe and harmless when not disturbed. If acid sulfate soils are dug up or drained they come into contact with oxygen. The pyrite in the soil reacts with the oxygen and oxidises. This process turns pyrite into sulfuric acid which can cause damage to the environment and to buildings roads and other structures.

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  • Weathering Clay MineralsTulane University

    An acid is solution that has abundant free H ions. The most common weak acid that occurs in surface waters is carbonic acid. Carbonic acid is produced in rainwater by reaction of the water with carbon dioxide (CO 2) gas in the atmosphere. H is a small ion and can easily enter crystal structures releasing other ions into the water

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  • US Patent for Clay treatment process for white mineral oil

    1. A process for preparing a white oil comprising filtering a white oil feedstock through a filter bed containing an acid-activated clay to produce a white oil wherein the white oil feedstock when subjected to the RCS test produces an acid extract having an ASTM D1500 color of greater than 4.5 and wherein the white oil when subjected to the RCS test produces an acid extract having an

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  • Production Line Out Of Activated Clay

    Actal acid clay catalyst acid activated clay naturally occuring bentonite is activated with acids.During acid activation the interlayer cations are exchanged per protons and other catalytically active cations.Metal ions like al fe are leached out from octahedral layer of clay.As a result clay becomes acidic and porous.Learn more.

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  • Weathering Clay MineralsTulane University

    An acid is solution that has abundant free H ions. The most common weak acid that occurs in surface waters is carbonic acid. Carbonic acid is produced in rainwater by reaction of the water with carbon dioxide (CO 2) gas in the atmosphere. H is a small ion and can easily enter crystal structures releasing other ions into the water

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  • Clay mineralChemical and physical properties Britannica

    Clay mineralClay mineralChemical and physical properties Depending on deficiency in the positive or negative charge balance (locally or overall) of mineral structures clay minerals are able to adsorb certain cations and anions and retain them around the outside of the structural unit in an exchangeable state generally without affecting the basic silicate structure.

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  • Bleaching clays mineral adsorbents and catalytic

    A catalyst is a material that increases a chemical reaction rate without sustaining any permanent change. Solid acid catalysts are environmentally-friendly products that eliminate the need for liquid acid. They tolerate feedstock impurities feedstock changes and process abnormalities. Various acid catalyzed reactions include

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  • Research Article Preparation and Characteristics of

    Activated clay hydrochloric acid Reaction kettle Cryolite suspension Residue Centrifuge Pressure ltration Filtrate Sodium chloride Hydrou oric acid Cryolite Calcined bauxite Eux of excess part Alkali Inorganic polymer occulants (IPFs) Synthetic cryolite mother liquor by clay-brine process F Process chart of synthetic cryolite by clay-brine

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  • Garden Guides Clay Soil

    Soil becomes acid. Sand does warm up well helping germination along. Loam. Loam is an ideal mix of sand silt and clay with sand the dominant texture. The clay in loam keeps moisture and nutrients near roots the sand prevents the moisture from getting too extreme and

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  • Modified Bentonite Organoclay Organophilic Clay

    Zhejiang Camp-Shinning New Material is a leading manufacturer of Bentonite in China.Tel .E-mail info camp-shinning.

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  • THE BLEACHING CLAYSUSGS

    Each clay has its ovvn characteristic weight-h1llllidity and weight-temperature curves which ma be interpreted in terms of energy of adsorption. The testing of bleaching clays covers t only the bleaching power and hydration but acid solubility and identification of the acid-soluble constituents.

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  • Research Article Preparation and Characteristics of

    Activated clay hydrochloric acid Reaction kettle Cryolite suspension Residue Centrifuge Pressure ltration Filtrate Sodium chloride Hydrou oric acid Cryolite Calcined bauxite Eux of excess part Alkali Inorganic polymer occulants (IPFs) Synthetic cryolite mother liquor by clay-brine process F Process chart of synthetic cryolite by clay-brine

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  • Processing Edible OilsPenn State Extension

    Figure 3 A bag of bleaching clay. A simple acid wash of the raw pressed oil will cause many of the hydratable compounds to settle out of the water and become particles that can be settled centrifuged or filtered from the remaining oil. Citric acid is often chosen as the acid for this operation. In one process the oil is heated to 80°C (176°F).

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  • Re-refining of Used Lube Oil II- by Solvent/Clay and Acid

    The results showed that pour point increased from-15C for feed oil to-2C for acid/clay-percolation process and-6C for solvent/clay process. This is compared with-8C for base oil. Sulfur content was found about 0.42wt for acid/clay-percolation and 0.81 wt for solvent/clay.

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  • Acid sulfate soils explained Environment land and water

    Acid sulfate soils are safe and harmless when not disturbed. If acid sulfate soils are dug up or drained they come into contact with oxygen. The pyrite in the soil reacts with the oxygen and oxidises. This process turns pyrite into sulfuric acid which can cause damage to the environment and to buildings roads and other structures.

    Get Price
  • Acid sulfate soilWikipedia

    Acid sulfate soils are naturally occurring soils sediments or organic substrates (e.g. peat) that are formed under waterlogged conditions.These soils contain iron sulfide minerals (predominantly as the mineral pyrite) or their oxidation products. In an undisturbed state below the water table acid sulfate soils are benign. However if the soils are drained excavated or exposed to air by a

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  • Re-refining of Used Lube Oil II- by Solvent/Clay and Acid

    The results showed that pour point increased from-15C for feed oil to-2C for acid/clay-percolation process and-6C for solvent/clay process. This is compared with-8C for base oil. Sulfur content was found about 0.42wt for acid/clay-percolation and 0.81 wt for solvent/clay.

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  • bleaching earth bleaching clay activated bleaching earth

    About Us "Refoil" is the product name for a wide range of Activated Bleaching Earth produced by "Refoil" group of companies with their flagship company Refoil Earth Pvt. Ltd. The group went into the production of Activated Bleaching Earth in year 1980. Over the time span of more than 35 years the group has earned a good name as a dependable supplier with high quality products of consistent nature.

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  • Acid process for recovery of alumina from clayThe

    The nitric acid recovered from the thermal decomposition step was recovered and recycled to the clay leaching step. A modification of this technique involves subjecting the iron-free aluminum nitrate solution to elevated temperature and pressure in order to precipitate

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  • Acid sulfate soils explained Environment land and water

    Acid sulfate soils are safe and harmless when not disturbed. If acid sulfate soils are dug up or drained they come into contact with oxygen. The pyrite in the soil reacts with the oxygen and oxidises. This process turns pyrite into sulfuric acid which can cause damage to the environment and to buildings roads and other structures.

    Get Price
  • (PDF) Sulphuric Acid Activation of a Calcium Bentonite

    A low-cost inorganic acid-activated clay was used as adsorbent for the adsorption of six dyes (two basic one acidic one disperse one direct dye and one reactive) from aqueous solutions.

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  • How to Use a Clay Bar 13 Steps (with Pictures)wikiHow

    Oct 21 2020 · Auto detailing clay is used to remove dust dirt industrial fallout acid rain and other contaminants from your car s exterior surfaces. Known as a "Clay Bar Detail " the process removes particles that stick to the clay when it is rubbed along the car s surface.

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  • Extraction of Alumina from Local Clays by Hydrochloric

    Extraction of Alumina from Local Clays by Hydrochloric Acid Process 35 6 M 10 Fig. 2. Effect of leaching time and acid concentration on extraction on Al2O3 extraction at acid to clay ratio weight ratio of 10 and boiling temperature. Fig. 3. Effect of acid to clay weight ratio on alumina extraction at different acid concentrations. 15 20 25 30 35

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  • Extraction of Alumina from Local Clays by Hydrochloric

    Extraction of Alumina from Local Clays by Hydrochloric Acid Process 35 6 M 10 Fig. 2. Effect of leaching time and acid concentration on extraction on Al2O3 extraction at acid to clay ratio weight ratio of 10 and boiling temperature. Fig. 3. Effect of acid to clay weight ratio on alumina extraction at different acid concentrations. 15 20 25 30 35

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  • Process for making acid activated bleaching earth using

    A process for making acid-activated bleaching earth from certain naturally occurring mixtures of calcium bentonite and attapulgite clay. The process involves treating such clay with low levels of activating acid which are mixed with the dried and ground clay or spray dried from slurries containing the clay-acid

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  • USAAcid activated clayGoogle Patents

    The process of drying acid-activated clay comprising evaporating only physically admixed water by treating the same with super-heated steam for a period sumcient to reduce the amount of physically

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  • THE BLEACHING CLAYSUSGS

    Each clay has its ovvn characteristic weight-h1llllidity and weight-temperature curves which ma be interpreted in terms of energy of adsorption. The testing of bleaching clays covers t only the bleaching power and hydration but acid solubility and identification of the acid-soluble constituents.

    Get Price
  • Chemistry of Clays

    Pure clay substance is insoluble in dilute hydrochloric acid or nitl icacidi. Concentrated sulfuric acid decompoEle s it at 2500 to 3000 C. with the separatiO n of sand and silica. Hydrof luoric acid illi the presence of s.ulfuriCJ acid decomposes the sand which may be

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  • WOA1Clay treatment process for white mineral

    acid clay color calcium bentonite Prior art date Application number PCT/US1998/025621 Other languages French (fr) Inventor Nadine Yenni Chan Vu Original Assignee Chevron U.S.A. Inc. Priority date (The priority date is an assumption and is not a legal conclusion.

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  • Re-refining of Used Lube Oil II- by Solvent/Clay and Acid

    The results showed that pour point increased from-15C for feed oil to-2C for acid/clay-percolation process and-6C for solvent/clay process. This is compared with-8C for base oil. Sulfur content was found about 0.42wt for acid/clay-percolation and 0.81 wt for solvent/clay.

    Get Price
  • WOA1Clay treatment process for white mineral

    acid clay color calcium bentonite Prior art date Application number PCT/US1998/025621 Other languages French (fr) Inventor Nadine Yenni Chan Vu Original Assignee Chevron U.S.A. Inc. Priority date (The priority date is an assumption and is not a legal conclusion.

    Get Price
  • USAProcess for making acid activated bleaching

    A process for making acid-activated bleaching earth from certain naturally occurring mixtures of calcium bentonite and attapulgite clay. The process involves treating such clay with low levels of activating acid which are mixed with the dried and ground clay or spray dried from slurries containing the clay-acid mixture. Advantages include lower acid costs/unit mass of clay treated lower

    Get Price
  • Processing Edible OilsPenn State Extension

    Figure 3 A bag of bleaching clay. A simple acid wash of the raw pressed oil will cause many of the hydratable compounds to settle out of the water and become particles that can be settled centrifuged or filtered from the remaining oil. Citric acid is often chosen as the acid for this operation. In one process the oil is heated to 80°C (176°F).

    Get Price
  • A Look At The Lithium Clay Projects Seeking Alpha

    Sep 12 2018 · The company tends not to call it a clay but it follows similar acid leaching processes so should be included as a good option additional to the above

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  • Cleaning mineral specimens a guide for mineral collectors

    Oxalic Acid. Anything that has the word "acid" sounds ominous. But oxalic acid is easy to find use and the safest for the home. In fact it is found in many vegetables including spinach. It is used to dissolve the iron oxide (brown) stain on all minerals. Remember also that these mechanical methods are often the first in a many step process

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  • A comparative study of recycling of used lubrication Oils

    from 25.5 for used lube oil to 86.2 for distillation 89.10 for acid/clay treatment and 80.5 is for activated/clay treatment. This is compared with 92.8 cs for fresh lube oil. Other results from the different tests showed varied degrees of improvement with the best results obtained using the acid/clay treatment.

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