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cement grinding aids patents

Weifeng Li Inventions Patents and Patent Applications

Weifeng Li Inventions Patents and Patent Applications

Nov 30, 2018 Abstract: It discloses cement grinding aids prepared with waste antifreeze which comprises the following components in parts by weight: 20-75 parts of pretreated waste antifreeze, 5-40 parts of alkanolamine, 1-5 parts of acid solution, 3-12 parts of saccharide and 15-50 parts of water. The pretreated waste antifreeze is prepared by adding an ...

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Cement grinding aids prepared with waste antifreeze

Cement grinding aids prepared with waste antifreeze

Sep 29, 2015 Patents US 2018/0141863 A1. Cement grinding aids prepared with waste antifreeze (22) 29.09.2015 (43) 24.05.2018 (57) It discloses cement grinding aids prepared with waste anti-freeze which comprises the following components in parts by weight: 20-75 parts of pretreated waste antifreeze, 5-40 parts of alkanolamine, 1-5 parts of acid solution, 3 ...

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Development history and evolution of cement grinding aids

Development history and evolution of cement grinding aids

Nov 23, 2018 Development history and evolution of cement grinding aids. Since the 1930s, cement grinding aids have been used in the cement industry. The earliest patents of the 1930s tested and used powdered mixtures of mineral oil, animal oil and petroleum cracking residues to improve the water resistance of cement products and improve the high early strength and processability of cement.

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Grinding aids for high performance cements

Grinding aids for high performance cements

Grinding aids for high performance cements Grinding aids are organic compounds that are added to the mill during cement grinding. Their main purpose is to reduce the energy required to grind the clinker into a given fineness. In addition, some products (usually referred to as performance enhancers) provide positive effect on cement hydration ...

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Cement grinding aid composition Cement Lime Gypsum

Cement grinding aid composition Cement Lime Gypsum

May 31, 2013 Patents US 2015/0336848 A1. Cement grinding aid composition (22) 31.05.2013 (43) 26.11.2015 (57) A grinding aid composition for improving the efficiency of cement grinding. The grinding aid composition comprises: an alkanolamine compound that is a primary alkanolamine compound, a secondary alkanolamine compound, or a mixture thereof; and a glycol.

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PDF Effect of Grinding Aids in Cement Grinding

PDF Effect of Grinding Aids in Cement Grinding

The grinding aid facilitates size reduction so that t he mill has to ap ply less grinding power without hav ing. adverse effect on any of the prop erties of the resulti ng cement. Another be ...

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Progress with grinding aids for VRMs Global Cement

Progress with grinding aids for VRMs Global Cement

Jun 01, 2018 The effect of grinding aids on the comminution of cement is based on the dispersion of fine particles. It is a misunderstanding that grinding aids for vertical roller mills (VRMs) should stabilise the material bed between the rollers and the table by adhesive forces between the particles. Grinding aids reduce the polarity of the cleaved surface ...

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Cement grinding aids additives MasterCem

Cement grinding aids additives MasterCem

MasterCem cement additives amplify grinding efficiency, resulting in a higher mill throughput and lower the clinker factor, with an overall reduction in CO2 emissions. Our performance enhancers modify and elevate cement’s properties, improving its strength, workability and flow and ultimately upgrading cement’s usability and durability.

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Water reducers Where did they come from GCP Applied

Water reducers Where did they come from GCP Applied

Aug 30, 2018 Further research uncovered that the addition of small amounts of compounds, called alkanol amines, negated much of the cement retardation. More patents were issued. Dewey and Almy also expanded into grinding aids for cement manufacture based on the same technology. This hyper-focused attention to research and development of admixtures, coupled ...

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Wuhan Huaxuan High tech Co. Ltd Reviewing Huaxuan

Wuhan Huaxuan High tech Co. Ltd Reviewing Huaxuan

In the course of the development of 12 years, Wuhan Huaxuan High-tech Co., Ltd has gained impressive achievements in the fields of new-type wall material, concrete admixtures, new type of movable manufacturing equipment of polycarboxylate superplasticizer,and cement grinding aids,etc. The company now owns twelve items of invention patents and ...

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Progress with Grinding Aids for Vertical Roller Mills

Progress with Grinding Aids for Vertical Roller Mills

Progress with Grinding Aids for Vertical Roller Mills. The effect of grinding aids on the comminution of cement is based on the dispersion of fine particles. It is a misunderstanding that grinding aids for vertical roller mills (VRMs) should stabilise the material bed between the rollers and the table by adhesive forces between the particles.

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US Patent for Process for making cements with silicon

US Patent for Process for making cements with silicon

This invention relates to grinding aids for cement clinker, and to the use of certain direct process residue gels as grinding aids for pulverizing cement clinker to cement. In particular, the grinding aids are hydrolysis products of alkylhalodisilanes and other chlorosilanes produced in alkylhalosilane manufacturing operations.

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Grinding aids for hydraulic cement. GRACE W R amp CO

Grinding aids for hydraulic cement. GRACE W R amp CO

Grinding aids for hydraulic cement. - GRACE W R & CO. Title: Grinding aids for hydraulic cement. European Patent Application EP0226379. Kind Code: A2. Abstract: Hydraulic cements such as Portland cement are interground with diesters of a polyol (e.g. alkylene glycol) with a monobasic carboxylic acid (e.g. acetic acid) to enhance the efficiency ...

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CEMENT GRINDING AID SIKA TECHNOLOGY AG

CEMENT GRINDING AID SIKA TECHNOLOGY AG

Such cement grinding aids are typically selected from the class comprising glycols such as alkylene glycols, amines or amino alcohols. For example, U.S. Pat. No. 5,084,103 describes trialkanolamines, such as triisopropanolamine (TIPA) or N,N-bis(2-hydroxyethyl)-N-(2-hydroxypropyl)amine and tris(2-hydroxybutyl)amine as grinding aids for clinkers.

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GCP Applied Technologies receives European patent for

GCP Applied Technologies receives European patent for

Oct 19, 2018 Europe: US-based company GCP Applied Technologies has received a European patent for increasing the efficiency of cement grinding by using sustainable raw materials. The grinding aids and quality improvers allow the use of bio-derived glycerol and reduce the use and the impact of oil-derived chemicals.

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US Patent for Method of grinding cement Patent Patent

US Patent for Method of grinding cement Patent Patent

Oct 16, 1995 A method of continued grinding of cement is disclosed in order to obtain cement with a high specific surface and/or a steep grain size distribution curve. The grinding is performed in a mill with agitated grinding medium from a specific surface of 300-400 m.sup.2 /kg (Blaine) to a specific surface of up to 1,200 m.sup.2 /kg (Blaine) and with a particle size distribution such that about 80% of ...

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Modern cement manufacturing Cement grinding aids

Modern cement manufacturing Cement grinding aids

Dec 30, 2008 The patent further claims that these amines could be added as grinding aids in the cement manufacture. (iv) United States Patents 4204877, 3615785, 5125976 and French Patent 2337699 One of the major classes of grinding aids used today is the oligomers of

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patent Cement industry news from Global Cement

patent Cement industry news from Global Cement

Jun 11, 2020 Europe: US-based company GCP Applied Technologies has received a European patent for increasing the efficiency of cement grinding by using sustainable raw materials. The grinding aids and quality improvers allow the use of bio-derived glycerol and reduce the use and the impact of oil-derived chemicals.

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Grinding Aids for cement Term Paper SlideShare

Grinding Aids for cement Term Paper SlideShare

May 11, 2015 Grinding Aids for cement-Term Paper 1. 1 GRINDING AIDS FOR CEMENT Term Paper SHYAM R. ANANDJIWALA 1st year M.Tech, Construction Technology and Management Indian Institute of Technology, Delhi India. [email protected] Abstract-Recent growth of construction industry has increased the demand of cement.

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GCP Applied Technologies Receives European Patent on

GCP Applied Technologies Receives European Patent on

Oct 18, 2018 CAMBRIDGE, Mass. – October 18th, 2018 – GCP Applied Technologies Inc. (NYSE:GCP), a leading global provider of construction products technologies, is proud to announce the issuance of a patent for increasing the efficiency of cement grinding by using sustainable raw materials. The novel grinding aids and

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Comprehensive understanding of 173 grinding aids Cement

Comprehensive understanding of 173 grinding aids Cement

1 Introduction. Grinding aids have been used successfully for decades in cement production and many other areas, such as ceramics, pigments etc. The main effect is to reduce energy consumption and increase the grinding efficiency. Additional features can be improved – e.g. powder flowability and strength development of binders.

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Cement Additives CHRYSO

Cement Additives CHRYSO

CHRYSO CEMENT ADDITIVES improve cement performance, reduce energy & production costs and leverage CO 2 emissions reduction. Because each cement plant has its own challenges and requirements, CHRYSO has developed a strong expertise in the cement industry to provide customers with specific and high-level support and services on field.

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CN101898878B Cement grinding aid Google Patents

CN101898878B Cement grinding aid Google Patents

The invention discloses a cement grinding aid, comprising calcium formate solution, compound glycerol distilled residue solution, triethanolamine, diols and molasses. While the product reutilizes the industrial wastes, the components of the product synergistically act to optimize the efficacy of the grinding process and the product modifies the cement particles, thus improving the quality and ...

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US4643362A Grinding aids for hydraulic cement Google

US4643362A Grinding aids for hydraulic cement Google

US4643362A US06/803,380 US80338085A US4643362A US 4643362 A US4643362 A US 4643362A US 80338085 A US80338085 A US 80338085A US 4643362 A US4643362 A US 4643362A Authority US United States Prior art keywords grinding acid cement grinding aids alkylene polyol Prior art date 1985-12-02 Legal status (The legal status is an assumption and is not a legal conclusion.

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Cement grinding aid composition Google Patents

Cement grinding aid composition Google Patents

The grinding aid composition comprises: an alkanolamine compound that is a primary alkanolamine compound, a secondary alkanolamine compound, or a mixture thereof; and a glycol. US20150336848A1 -...

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Patent Report US10077211 Cement grinding aids

Patent Report US10077211 Cement grinding aids

The cement grinding aids in embodiment 1 and comparative examples 1 and 2 are respectively added into cement, the cement is diluted and then fed into a laboratory mill for milling for 25 minutes, and 45 um sieving residue, specific surface area and 3d/28d breaking/compressive strength of the milled cement sample are respectively measured as ...

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Dieter Honert Inventions Patents and Patent Applications

Dieter Honert Inventions Patents and Patent Applications

Feb 12, 2020 Abstract: The invention relates to an aqueous polymer composition which is used in the form of a cement grinding aid and makes it possible to effectively reduce the grinding time and to obtain cements exhibiting excellent characteristics. A cement grinding aid containing a combination of polymer A and known cement grinding aids is also disclosed.

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Urs Maeder Inventions Patents and Patent Applications

Urs Maeder Inventions Patents and Patent Applications

Abstract: An aqueous polymer composition is disclosed which is used in the form of a cement grinding aid and makes it possible to effectively reduce the grinding time and to obtain cements exhibiting excellent characteristics. A cement grinding aid containing a combination of polymer A and known grinding aids is also disclosed.

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GCP Applied Technologies receives European patent on

GCP Applied Technologies receives European patent on

The patent addresses methods for increasing the efficiency of cement and mineral grinding by using sustainable raw materials. The patent relates to methods for improving the efficiency of grinding materials such as clinker and limestone, using glycerol derived from biofuel production, in combination with various grinding additives.

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cement grinding aid composition BINQ Mining

cement grinding aid composition BINQ Mining

grinding aids: its composition is based on a combination of synthetic organic compounds derived from amines and glycols. … performance as a cement grinding aid. More detailed Cement Grinding Aid – Patent application

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SINTEF Building and Infrastructure Christian J. Engelsen

SINTEF Building and Infrastructure Christian J. Engelsen

Grinding aids are mostly organic compounds that are added to the clinker in the cement mill. Their main purposes are to reduce the energy required to grind the clinker into a given fineness and therefore increase the efficiency of the cement mill. Grinding aids have been used for more

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Risks and Complications of Total Knee Replacement Surgery

Risks and Complications of Total Knee Replacement Surgery

Mar 30, 2020 Over 600,000 people undergo knee replacement surgery every year in the United States. Severe complications, such as an infection, are rare. They occur in fewer than 2 …

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Housemaid's Knee Prepatellar Bursitis Health Patient

Housemaid's Knee Prepatellar Bursitis Health Patient

Jun 28, 2020 Housemaid's knee is also known as prepatellar bursitis. It is caused by inflammation of a small fluid-filled sac (the bursa) in front of the kneecap. It more commonly occurs in people who spend long periods of time kneeling. Treatment is usually supportive only and the outlook is generally very good. Housemaid's Knee.

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48-hour idling test machine before leaving the factory. You can take the materials to the factory test machine. We will customize the solution according to your needs. Free Installation.

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