barium sulfate comprising

barium sulfate comprising

Barium sulfate and cosmetic compositions comprising

1991-3-6 · A cosmetic composition comprising (1) barium sulfate having a plate crystal structure wherein the aspect ratio is 5-100, the ratio of the square of the circumference of the plate and the area of the orthogonal projection plane is 20:1-150:1, and the ratio of the diffraction peaks on planes (020) and (200) is 1.5-100; and (b) spherical powder ...

US20050287092A1 - Cosmetic powder comprising barium ...

Disclosed herein is a cosmetic powder comprising barium sulfate and either at least one elastomeric organopolysiloxane powder and at least one N-acylamino acid powder, or at least one polymethyl methacrylate powder and at least one polyurethane powder, or at least one acrylic polymer powder other than a polymethyl methacrylate powder.

Thermally Stable Catalyst Carrier Comprising Barium Sulfate

2010-12-27 · Provided herein is a barium sulfate-containing catalyst carrier. The catalyst carrier is useful for supporting an exhaust gas purification catalyst, such as a three way conversion catalyst. In an embodiment, the carrier comprises BaSO4/thermally stable alumina. Further provided is a process for preparing the catalyst carrier, with or without precious metals, comprising treating a barium oxide ...

Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper ...

2020-11-25 · Acid/Alkali-Proof Fire-Resistant Inorganic Paper Comprising Fibers Assembled from Barium Sulfate Nanorods Dr. Jin Wu , State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P.

Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper ...

2020-11-25 · Acid/Alkali-Proof Fire-Resistant Inorganic Paper Comprising Fibers Assembled from Barium Sulfate Nanorods Dr. Jin Wu , State Key Laboratory of High

Barium Sulfate - an overview | ScienceDirect Topics

Barium sulfate is a soft crystalline solid. It is a rhombic crystal. The pure salt is white but the color of the mineral “barite” can vary between red, yellow, gray or green, depending on impurities. Its density is 4.50 g/cm 3 and its refractive index is 1.64. It melts around 1580 °C but decomposes above 1600 °C.

Norbar Minerals

A dense mineral comprising barium sulfate (BaSO4), commonly used as a weighting agent for all types of drilling fluids. Norbar Minerlas barite is mined in Marocco and shipped as ore to the grinding plant at Karmøy. The end product is offered in several different qualities depending on particle size, density and non-sag features.

Drilling Fluid Additives - oilfieldteam

2017-5-13 · The most important weighting additive in drilling fluids is barium sulfate (BaSO 4 ). Barite is a dense mineral comprising barium sulfate. The specific gravity of barite is at least 4.20 g/cm 3 to meet API specifications for producing mud densities from 9 to 19 lbm/gal. However, a variety of materials have been used as weighting agents for ...

Sulfate scale dissolution - Mobil Oil Corporation

Alkaline earth metal scales, especially barium sulfate scale deposits are removed from oilfield pipe and other tubular goods with a scale-removing composition comprising an aqueous alkaline solution having a pH of about 8 to about 14, preferably about 11 to 13, of a polyaminopolycarboxylic acid, preferably EDTA or DTPA and a catalyst or synergist comprising a monocarboxylic acid, preferably a ...

生物材料与组织工程研究中心 - SIC

Jin Wu, Ying-Jie Zhu*. Acid/Alkali-Proof Fire-Resistant Inorganic Paper Comprising Barium Sulfate Nanorods-Assembled Fibers. European Journal of Inorganic Chemistry, 2021 (5), 492–499 (2021). 8. Heng Li, Ying-Jie Zhu*. Hydroxyapatite Nanowires

Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper ...

2020-11-25 · Acid/Alkali-Proof Fire-Resistant Inorganic Paper Comprising Fibers Assembled from Barium Sulfate Nanorods Dr. Jin Wu , State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P.

Thermally Stable Catalyst Carrier Comprising Barium Sulfate

2010-12-27 · Provided herein is a barium sulfate-containing catalyst carrier. The catalyst carrier is useful for supporting an exhaust gas purification catalyst, such as a three way conversion catalyst. In an embodiment, the carrier comprises BaSO4/thermally stable alumina. Further provided is a process for preparing the catalyst carrier, with or without precious metals, comprising treating a barium oxide ...

Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper

2021-2-1 · In this work, barium sulfate (BS) fibers with a three‐level nanorod‐assembled hierarchical structure have been synthesized in a large scale by the barium oleate precursor hydrothermal method. A new kind of anti‐acid and anti‐alkali fire‐resistant BS ...

Barite (BARIUM) - Metallurgist & Mineral Processing

2016-4-9 · A dense mineral comprising barium sulfate [BaSO 4] that commonly occurs with a range of accessory minerals, such as quartz, chert, dolomite, calcite, siderite and metal sulfides. Used as a weighting agent for all types of drilling fluids, barites are mined in many areas worldwide and shipped as ore to grinding plants in strategic locations.

Barium Sulfate - an overview | ScienceDirect Topics

Barium sulfate is a soft crystalline solid. It is a rhombic crystal. The pure salt is white but the color of the mineral “barite” can vary between red, yellow, gray or green, depending on impurities. Its density is 4.50 g/cm 3 and its refractive index is 1.64. It melts around 1580 °C but decomposes above 1600 °C.

Norbar Minerals

A dense mineral comprising barium sulfate (BaSO4), commonly used as a weighting agent for all types of drilling fluids. Norbar Minerlas barite is mined in Marocco and shipped as ore to the grinding plant at Karmøy. The end product is offered in several different qualities depending on particle size, density and non-sag features.

barite | Oilfield Glossary

2. n. [Drilling Fluids] A dense mineral comprising barium sulfate [BaSO 4].Commonly used as a weighting agent for all types of drilling fluids, barites are mined in many areas worldwide and shipped as ore to grinding plants in strategic locations, where API specifies grinding to a particle size of 3 to74 microns. Pure barium sulfate has a specific gravity of 4.50 g/cm 3, but drilling-grade ...

Drilling Fluid Additives - oilfieldteam

2017-5-13 · The most important weighting additive in drilling fluids is barium sulfate (BaSO 4 ). Barite is a dense mineral comprising barium sulfate. The specific gravity of barite is at least 4.20 g/cm 3 to meet API specifications for producing mud densities from 9 to 19 lbm/gal. However, a variety of materials have been used as weighting agents for ...

HOME - BORNAENERGY

A dense mineral comprising barium sulfate [BaSO 4 ]. Commonly used as a weighting agent for all types of drilling fluids. Drilling-grade barite is expected to have a specific gravity of at least 4.20 g/cm 3 to meet API specifications. Micronized Gypsum Powder. It is a white, fine and high quality gypsum powder made from high grade gypsum rocks ...

US Patent for Sulfate scale dissolution Patent (Patent ...

Alkaline earth metal scales, especially barium sulfate scale deposits are removed from oilfield pipe and other tubular goods with a scale-removing composition comprising an aqueous alkaline solution having a pH of about 8 to about 14, preferably about 11 to 13, of a polyaminopolycarboxylic acid, preferably EDTA or DTPA and a catalyst or synergist comprising a monocarboxylic acid, preferably a ...

Thermally Stable Catalyst Carrier Comprising Barium Sulfate

2010-12-27 · Provided herein is a barium sulfate-containing catalyst carrier. The catalyst carrier is useful for supporting an exhaust gas purification catalyst, such as a three way conversion catalyst. In an embodiment, the carrier comprises BaSO4/thermally stable alumina. Further provided is a process for preparing the catalyst carrier, with or without precious metals, comprising treating a barium oxide ...

Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper

2021-2-1 · In this work, barium sulfate (BS) fibers with a three‐level nanorod‐assembled hierarchical structure have been synthesized in a large scale by the barium oleate precursor hydrothermal method. A new kind of anti‐acid and anti‐alkali fire‐resistant BS ...

Barite (BARIUM) - Metallurgist & Mineral Processing

2016-4-9 · A dense mineral comprising barium sulfate [BaSO 4] that commonly occurs with a range of accessory minerals, such as quartz, chert, dolomite, calcite, siderite and metal sulfides. Used as a weighting agent for all types of drilling fluids, barites are mined in many areas worldwide and shipped as ore to grinding plants in strategic locations.

Barium Sulfate - an overview | ScienceDirect Topics

Barium sulfate is a soft crystalline solid. It is a rhombic crystal. The pure salt is white but the color of the mineral “barite” can vary between red, yellow, gray or green, depending on impurities. Its density is 4.50 g/cm 3 and its refractive index is 1.64. It melts around 1580 °C but decomposes above 1600 °C.

Hierarchically Nanostructured Barium Sulfate Fibers |

2017-11-4 · Acid/Alkali‐Proof Fire‐Resistant Inorganic Paper Comprising Fibers Assembled from Barium Sulfate Nanorods. European Journal of Inorganic Chemistry 2021, 2021 (5) , 492-499.

Drilling Fluid Additives - oilfieldteam

2017-5-13 · The most important weighting additive in drilling fluids is barium sulfate (BaSO 4 ). Barite is a dense mineral comprising barium sulfate. The specific gravity of barite is at least 4.20 g/cm 3 to meet API specifications for producing mud densities from 9 to 19 lbm/gal. However, a variety of materials have been used as weighting agents for ...

CT Study of Radiopaque Implant Template for Gingival Form

CT templates comprising silicone impression materials containing 5 vol% barium sulfate were easy to use with regard to precise visualization of gingival form. The present study suggests that CT templates comprising silicone impression material containing 5 vol% barium sulfate provide useful information in the assessment of soft tissue ...

Correlation studies of barium on pulmonary infection

2015-12-16 · The barium sulfate group was administered Liquid E-Z Paque barium sulfate suspension (60%) (Qingdao Chemical Engineering Ltd., Co., Shandong, China) comprising 150 g barium powder with 100 ml water. Semi-liquid barium sulfate comprised pasty barium food produced from a mixture of 60 ml of the 60% barium sulfate suspension with 1 g thickener ...

Correlation studies of barium on pulmonary infection

groups. The barium sulfate group was administered Liquid E-Z Paque barium sulfate suspension (60%) (Qingdao Chemical Engineering Ltd., Co., Shandong, China) comprising 150 g barium powder with 100 ml water. Semi-liquid barium sulfate comprised pasty barium food produced from a mixture of 60 ml of the 60% barium sulfate suspension with

Plasma resistant curable fluoroelastomer composition - 百

A fluoroelastomer composition comprising a) a fluoroelastomer, b) a curative and c) barium sulfate having an average particle size less than 200 nm is disclosed. This composition loses less weight and produces fewer particles when exposed to reactive plasmas than do similar compositions which contain larger particle size barium sulfate.