cement grinding aid patent

Cement Grinding Aid Patent

US20150336848A1 - Cement grinding aid …

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.

EP2582643A1 - Grinding aid - Google Patents

The invention relates to the use of methyldiethanolamine as a grinding aid for cement, and in particular its use as a strength enhancing grinding aid for cement. The compressive strength may be enhanced by the methyldiethanolamine at both at an early stage (1and/or 3 days from the start of hydration) and at a late stage (7 and/or 28 days from ...

Cement grinding aid patent - ontwerpbureau …

Cement grinding aid patent. May 09 1989 · a Glycols have been used for years as cement grinding aids alone or with other additives b US Pat No 3420686 teaches that urea is an effective grinding aid and pack set inhibitor THE INVENTION The invention is based on the combination of two components which individually have been shown to be effective ...

CEMENT GRINDING AID COMPOSITION - Dow …

26-11-2015 · 1. A grinding aid composition for cement clinker grinding, comprising: an alkanolamine compound that is a primary alkanolamine compound, a secondary alkanolamine compound, or a mixture thereof; and a glycol. 2. The grinding aid composition of claim 1 wherein the primary alkanolamine compound comprises one C 2-C 8 hydroxyalkyl group. 3.

Modern cement manufacturing: Cement grinding …

4-12-2008 · CEMENT GRINDING AIDS. Dr J D Bapat. The cement grinding aids are the additional materials (gas, liquid or solid), admixed in small amounts during the cement grinding process (cement manufacture), which can significantly improve the grinding efficiency, reduce energy consumption, without compromising the performance of the cement.

Grinding - Cement industry news from Global …

4-9-2019 · 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.

Cement grinding aid - MBT Holding AG

21-12-1999 · A cement clinker grinding aid which comprises a styrene-maleic anhydride copolymer (SMA) superplasticiser. The SMA is preferably a type with polyoxyalkylene-based side chains. Use of the grinding aid renders the grinding process more efficient and improves the performance of cementitous compositions in which the cement thus ground is used.

US Patent for Grinding aids for hydraulic cement …

Justia Patents To Aid Dispersion Or Prevent stone Reaction, Deliquescence, Agglomeration Or Frothing US Patent for Grinding aids for hydraulic cement Patent (Patent # 4,643,362) Grinding aids for hydraulic cement . Dec 2, 1985 - W. R. Grace & Co. Hydraulic ...

Grinding Aids for Cement - SlideShare

Grinding Aids for Cement 1. Grinding Aids For Cement Prepared by: Shyam R. Anandjiwala (Construction Management) INDIAN INSTITUTE OF TECHNOLOGY DELHI 2. What are Grinding Aids? • Grinding mill grinds the hard clinker into fine cement powder. • Additives used …

grinding aid formula - MC Machinery

cement grinding aid guide formula pdf Home » cement grinding aid guide formula pdf Whole Building Design Guide - Official Site The Gateway to Up-To-Date Information on Integrated Whole Building Design Techniques and Technologi The goal of Whole Building Design is to create a successful high-performance building by applying an ..

cement griding aid USA - pepphl.be

US Patent # 4,204,877 Cement grinding aid and set retarder , The hydraulic cement composition of claim 9 or 13 wherein the water , a water-soluble glycol and a defoamer with a commercially available cement grinding aid, , »More detailed. Grinding Aids manufacturers & suppliers - made-in-china.

GCP Applied Technologies receives European …

19-10-2018 · 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

What is a Grinding Aid? (with picture)

15-10-2019 · Grinding aids make it possible to streamline the cement-making process by increasing process efficiency and material fluidity. These benefits of cement grinding aid use also contribute to lower energy costs on the part of industrial mills. The grinding aid began to gain popularity in the mid-20th century as a reliable tool for cement processing.

SINTEF Building and Infrastructure Christian J. Engelsen

power consumption of 7% without the use of grinding aid. Including a suitable additive in such processes, the possibilities for further increase in the grinding efficiency are most likely present. In summary, conventional grinding aids are used to increase the production rate in the cement mill.

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