No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
The cement grinding aid production device is simple in structure, convenient to use and high in production efficiency; materials can be conveniently added; the reaction process can be controlled more accurately and effectively; a sample can be directly taken for detecting the reaction extent in the reaction process; and the product quality is ...
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.
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.
What is claimed: 1. A grinding aid composition for cement clinker grinding comprising a mixture of at least one alkylene glycol represented by the formula: HO (AO) n H. wherein A represents a C 2 -C 3 alkylene and n is an integer from 1 to 5 and particulate carbon in a weight ratio of alkylene glycol to carbon of 1:0.01 to 1:0.5. 2.
The invention therefore provides a cement clinker grinding aid which comprises a styrene-maleic anhydride copolymer superplasticiser. ... A 60% by weight aqueous solution of an SMA polymer (example 1 from French Patent Application 2 671 090) is then sprayed on to the grinding mixture at a rate of 0.15% by weight dry SMA on cement and grinding ...
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.
Lebih detail. Regular Cement Grinding Aid (RGA) atau dalam istilah lain disebut sebagai Conventional Cement Grinding Aid telah digunakan selama lebih dari 40 tahun dalam industri semen. Cement grinding aid adalah bahan tambahan dalam bentuk cair atau padat, yang ditambahkan/dicampur dalam jumlah kecil selama proses penggilingan klinker semen ...
The invention discloses a high-efficiency cement grinding aid and a cement thereof, and belongs to the field of cement production. The cement grinding aid is produced from, by weight, 4-10 parts of sodium tripolyphosphate, 3-9 parts of triisopropanolamine, 1-5 parts of polyethylene glycol, 3-9 parts of hydroxyethyl cellulose, 1-5 parts of unsaturated polyester …
The invention discloses a cement grinding aid. The cement grinding aid comprises the following components in percentage by weight: 8 to 20 percent of triethanolamine, 0 to 10 percent of triisopropanolamine, 8 to 20 percent of diol byproduct, 0 to 10 percent of synthetic glycerine, 0 to 25 percent of molasses, 0 to 5 percent of calcium lignosulfonate, 0 to 15 …
Us Patent Application For Accelerator Composition Patent. Apr 19, 2012 Processes for producing the aqueous and also solid compositions, their use as curing accelerators in building material mixtures containing cement, slag sand, fly ash, silica dust, metakaolin, natural pozzuolanas, calcined oil shales andor calcium aluminate cement and their use as grinding aid …
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.
The reduced energy consumption can significantly improve the overall cost efficiency of a cement plant, for instance by reducing the operating costs of the plant, increasing cement production throughput, and/or reducing the size of the milling equipment required to grind a given amount of cement. Previously known grinding aids are lacking for a ...
The invention discloses a composite cement grinding aid and cement containing the same and belongs to the field of manufacturing of cement. The cement grinding aid comprises raw materials in parts by weight as follows: 6-12 parts of hydroxyethyl cellulose, 2-6 parts of sodium triphosphate, 1-5 parts of calcium formate, 3-9 parts of polyethylene glycol, 2-6 parts …
CEMENT GRINDING AID COMPOSITION grinding cement clinker percent glycol aid weight cga in mix US14410316 () US20150336848A1 () Dow Global Technologies LLC ...
Cement grinding aid compositions . United States Patent 4828624 . Abstract: Cement clinkers are ground in an aqueous environment using as a grinding aid, a composition comprising: TBL _____ Ingredients Percent by Weight _____ A water-soluble glycol 40-70 Urea as a 50% aqueous solution 60-30 _____ ... View Patent Images: Download PDF 4828624 ...
A method for manufacturing supplementary cementitious material and sequestering CO2 by carbonating concrete fines has the following steps: grinding the concrete fines obtained from crushed concrete demolition waste in a mill at a temperature from 1 to 10° C. above the water dew point in a carbonating atmosphere provided by a gas containing from 10 to 99 Vol. …
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.
Benefits of Cement Grinding Aid. CGA reduces the inter-particle attractive forces of cement which causes agglomeration of cement grains. CGA are adsorbed on the newly created surface, neutralising electrical charges and thus reducing …
Justia Patents Derived From Carboxylic Acid Or Derivative US Patent Application for CEMENT GRINDING AID Patent Application (Application #20120270972) CEMENT GRINDING AID . Jul 5, 2012 - SIKA TECHNOLOGY AG. An aqueous polymer composition is disclosed which is used in the form of a cement grinding aid and makes it possible to effectively reduce ...
In the paper, a grinding aid using glycerol-waste antifreeze (GAP) was prepared and its effect on the grinding properties of clinker was investigated in contrast to that without the grinding aid. The results are as follows: The angle of repose of the cement powder added with GAP decreased as the grinding time increased (decreases by 3.8 when ...
Cement Grinding Aid And Set Retarder Westvaco Corporation. May 27 1980 united states patent 4204877 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 …
Benefits of using Cement Grinding Aids. Reduce Coating and Reduce Pack-set. Narrower Cement PSD. Increases Mill Output, by 5 - 30%. Increase Clinker Substitution, by 2-8%. Increases 1 day strength, 10-40% or say 2 - 6 MPa. …
Justia Patents Organic Material Containing US Patent for Grinding aid composition and cement product Patent (Patent # 5,429,675) Grinding aid composition and cement product Aug 22, 1994 - W. R. Grace & Co.-Conn.
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-soluble hydroxy-alkyl amine, a water-soluble salt of …
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.
JT-DC Cement Grinding Aid-Shandong Zhongsen Technology Co., Ltd.-The main components of this series of grinding aids are liquid products mainly composed of organic surfactants, polyols, sugars, and alcohol amines, supplemented by a small amount of inorganic salts. Human health and working performance of cement concrete.
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Overview. 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 …
Justia Patents US Patent for Cement grinding aid and set retarder Patent (Patent # 4,204,877) Cement grinding aid and set retarder . Jan 15, 1979 - Westvaco Corporation. 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 ...
The utility model discloses a kind of cement grinding aid material-pouring device, including L-shaped base and the roller for fixing its bottom, the L-shaped base is provided with the first mounting groove, and the inwall of the first mounting groove is rotatably connected to the second rotating shaft, rotating disk is socketed with second rotating shaft, rotating disk outer …
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-soluble hydroxy-alkyl amine, a water-soluble salt of …
1. The use of an aqueous composition comprising at least one polymer A of the formula (I) as a cement grinding agent where M=each independently H +, alkali metal ion, alkaline earth metal ion, di- or trivalent metal ion, ammonium ion or organic ammonium group, R=each R, independently of the others, is hydrogen or methyl, R 1 and R 2 =each independently C 1 to C 20-alkyl, …
