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cement grinding aids patents - search results

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 ...

GCP Applied Technologies receives European patent for ...

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.

Cement grinding aid composition - Google Patents

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.

The effect of addition agents in grinding Portland cement ...

a grinding aid is commercially practicable its effect upon the finished product must receive serious study_ ·However, no attempts were. made. to stUdy. the. effects of the grinding aids used. upon. the strength of concrete made from the cement produced, inas­ much as this was not within the province of the. pre~ sent work. PREVIOUS WORK. The

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 ...

GCP Applied Technologies Receives European Patent on ...

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

Cement grinding aid and set retarder - Patent US-4204877-A ...

1 Abstract. Additives for use as grinding aids and set retarders in the manufacture of hydraulic cement composed of polyglycerol, preferably a polyglycerol selected from the group of di-, tri-, and tetraglycerol and mixtures thereof, the additive being used either alone or in combination with at least one of a water-soluble glycol, a water ...

US Patent for Method of grinding cement Patent (Patent ...

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 ...

Leslie A. Jardine Inventions, Patents and Patent ...

Abstract: Compositions and methods for increasing grinding efficiency of cement, cement clinker, raw materials for cement, and other inorganic particles. Use of biomass-derived polyols such as diols, triols, or mixtures thereof, optionally with a conventional grinding aid, cement quality improver, and/or hexavalent chromium reducer, are believed to provide less risk of sludging when …

Modern cement manufacturing: Cement grinding aids

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

ACC: Reports, Company History, Directors Report, Chairman ...

1998 – Commissioning of the 0.6 MTPA cement grinding unit at Tikaria, Uttar Pradesh. 1999– Commissioning of captive power plants at the Jamul and Kymore plants in Madhya Pradesh.

New approach suggests path to emissions-free cement | MIT ...

Ordinary Portland cement, the most widely used standard variety, is made by grinding up limestone and then cooking it with sand and clay at high heat, which is produced by burning coal. The process produces carbon dioxide in two different ways: from the burning of the coal, and from gases released from the limestone during the heating.

patent - Cement industry news from Global Cement

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.

Grinding Aids for cement-Term Paper - SlideShare

Grinding aids which are used commercially consist both polar and nonpolar functional group but molecules turn polar functional group towards the clinker[3]. 3.Effect of Grinding Aids on Cement Composition V.S.Ramchandran[10] conducted research on the effect of TEA on cement composition .Dicalciumsilicate(C2S),Tricalciumsilicate(C3S),Tri calcium ...

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.

Weifeng Li Inventions, Patents and Patent Applications ...

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 ...

GCP Applied Technologies Receives European Patent on

Grinding aids and quality improvers make cement manufacturing more efficient, while concrete admixtures can reduce the amount of cement needed to achieve a given strength specification.

US4828624A - Cement grinding aid compositions - Google Patents

US4828624A US07/081,927 US8192787A US4828624A US 4828624 A US4828624 A US 4828624A US 8192787 A US8192787 A US 8192787A US 4828624 A US4828624 A US 4828624A Authority US United States Prior art keywords glycol cement grinding weight grinding aid Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

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

GCP Applied Technologies receives European sustainable ...

GCP Applied Technologies Inc has been issued with a patent for increasing cement grinding efficiency by using sustainable raw materials. The novel grinding aids and quality improvers allow the use of bio-derived glycerol and reduce the use and the impact of oil-derived chemicals.

Progress with grinding aids for VRMs - Global Cement

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 ...

Cement grinding aids - GCPAT

TAVERO® grinding aids make life easier for busy cement producers. Our grinding aids are designed to increase mill output without increasing costs, while saving energy and reducing CO 2 emissions. Improved cement flowability reduces the effort for handling and …

PROCESS FOR IMPROVING GRINDING OF CEMENT CLINKER IN …

1. A process for improving grinding operations in which cement clinker is ground into cement particulates using rollers, said process comprising: introducing a cement clinker into grinding contact with rollers operative to grind the clinker into cement particles; and introducing to said clinker or said rollers an amount of 0.001-0.5 percent based on the dry weight of the cement clinker being ...

grinding aid - English definition, grammar, pronunciation ...

The grinding aids can be added as such or formed in situ by the oxidation of saccharides. patents-wipo. Abrasive articles comprising a grinding aid dispersed in a polymeric blend binder. patents-wipo. An abrasive article (10) is provided which includes a peripheral surface formed comprising a grinding aid.

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.

JP5235958B2 - Cement grinding aid - Google Patents

JP5235958B2 JP2010201911A JP2010201911A JP5235958B2 JP 5235958 B2 JP5235958 B2 JP 5235958B2 JP 2010201911 A JP2010201911 A JP 2010201911A JP 2010201911 A JP2010201911 A JP 2010201911A JP 5235958 B2 JP5235958 B2 JP 5235958B2 Authority JP Japan Prior art keywords polymer cement formula aqueous composition independently Prior art date Legal status …

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 ...

AGENTS DE MOUTURE CEMENT GRINDING-AIDS

CEMENT GRINDING-AIDS AGENTS DE MOUTURE CIMENTS Head Office :19 place de la Résistance - 92446 Issy les Moulineaux - FRANCE Tél. : +33 (0)1 41 17 18 19 - Fax : +33 (0)1 41 17 18 80 6 longrine 04 90 14 48 48 - (7565-AS)

Cement Grinding Aid - SIKA TECHNOLOGY AG

TECHNICAL FIELD. The invention relates to the field of cement grinding aids. STATE OF THE ART. The production of cement is a very complex process. Cement is known to be very sensitive toward water, irrespective of whether it is present in the liquid or gaseous state, since cement sets hydraulically, i.e. it hardens under the influence of water within a short time to give a very stable solid body.

ACC > Company History > Cement - Major > Company History ...

-Company has changed its name from Associated Cement Companies Ltd. to ACC Ltd. 2007 - ACC partners with Christian Medical College for treatment of HIV/AIDS in Tamil Nadu - Sumant Moolgaokar ...