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Silicates and Silicas

Chemical Economics Handbook

Published December 2021

This report covers the markets for silicates and silicas. Specifically, it covers the silicates of sodium, calcium, zirconium, potassium, magnesium, and ethyl silicate. It also covers the specialty silicas of precipitated silica, colloidal silica, silica gel, fumed silica, and fused silica.

Sodium silicates account for 92% of the global consumption of silicates. Laundry detergents represent the largest single market for sodium silicates in most regions for direct use and indirect use. Another important direct-use market is in pulp and paper, where sodium silicate is used primarily to stabilize hydrogen peroxide in pulp bleaching and for deinking of recycled paper. Precipitated silicas account for about 62% of the global consumption of silicas.

The following charts show world consumption of silicates:

World consumption of sodium silicate is forecast to grow by 1.8% annually during 2021–26. Mainland China is the leading consumer, accounting for about 33% of total world consumption, followed by Western Europe, the United States, and Other Asia. In addition to a variety of direct uses, sodium silicate is consumed in the downstream production of derivative silicates, silicas, and aluminosilicates, including zeolites. These derivatives account for a substantial percentage of total sodium silicate consumption.

World consumption of potassium silicate is forecast to grow at an average rate of 1.8% annually in 2021–26. Other Asia is the leading consumer, accounting for 26% of total world consumption, followed by mainland China with about 24%, Central and South America with almost 24%, and Western Europe with almost 13%. Potassium silicate is used as a binder in welding rods and in several other markets. It is also used as a detergent builder in both consumer and industrial and institutional (I&I) products, and in various water-based coatings for the construction industry.

World consumption of calcium silicate is forecast to grow by about 1.4% annually during 2021–26. Mainland China, where calcium silicate is used as a compounding additive in plastics and rubbers, is by far the leading consuming region with 35% of world consumption. Calcium silicates are amorphous, water-insoluble powders precipitated from sodium silicate solutions, which function as specialty carriers (especially of oils), flowcontrol agents, and fillers.

World consumption of zirconium silicate is forecast to grow by 1.8% annually during 2021–26. Mainland China is the leading consuming region, accounting for almost 90% of total world demand. Zirconium silicate is used in the manufacture of refractory materials where resistance to corrosion by alkali materials is necessary. It is also used in ceramics, ceramic glazes, and enamels.

The following chart shows world consumption of specialty silicas:

Precipitated silica is the driving force for specialty silicas and demand is driven by the “green revolution” to meet environmental and legislative regulations to improve automotive fuel efficiency. It is forecast to grow by 2.5% annually in 2021–26. Mainland China is the leading consuming region, followed by Other Asia and Western Europe.

Colloidal silica (silica sol), which has a much smaller particle size and a lower tendency to clump, is being adopted in chemical mechanical planarization (CMP) slurries, a reason for its accelerating growth. Its consumption is also growing in pulp and paper mills as part of a retention/drainage aid system with a polymer. Growth is forecast at about 2.3% annually over the next five years. The leading growth market is in the electronics/semiconductor industry as a polishing agent.

Silica gel is a major driver for specialty silica growth, primarily owing to mainland China’s growing demand for adsorbents and desiccants. Mainland China is the largest consumer of silica gel, followed by Other Asia. Use in cosmetics and cat litter has reached maturity in developed markets. Global consumption is forecast to grow by 3% annually in 2021–26.

Fumed silica consumption is projected to grow globally by 2.3% per year during 2021–26. Mainland China will be the fastest growing region during the forecast period, with growth expected to be over 4% in the next five years. Silicone elastomer production is projected to account for almost three-quarters of consumption in 2021.

For more detailed information, see the table of contents, shown below.

S&P Global’s Chemical Economics Handbook – Silicates and Silicas is the comprehensive and trusted guide for anyone seeking information on this industry. This latest report details global and regional information, including

Key Benefits

S&P Global’s Chemical Economics Handbook – Silicates and Silicas has been compiled using primary interviews with key suppliers and organizations, and leading representatives from the industry in combination with S&P Global’s unparalleled access to upstream and downstream market intelligence and expert insights into industry dynamics, trade, and economics.

This report can help you

  • Identify trends and driving forces influencing chemical markets
  • Forecast and plan for future demand
  • Understand the impact of competing materials
  • Identify and evaluate potential customers and competitors
  • Evaluate producers
  • Track changing prices and trade movements
  • Analyze the impact of feedstocks, regulations, and other factors on chemical profitability

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Contents

Executive summary 15
Summary 16
Sodium silicates 16
Potassium silicates 19
Calcium silicates 20
Magnesium silicates 20
Zirconium silicates 21
Ethyl silicate 21
Specialty silicas 22
Precipitated silica 22
Silica gel 23
Colloidal silica (silica sol) 24
Fumed silica 24
Fused silica 25
Introduction 26
Industry structure and dynamics 26
Sodium silicates 26
Siliceous sodium silicates 27
Solid 27
Liquid 27
Alkaline sodium silicates 28
Potassium silicates 28
Other silicates 28
Precipitated silica 29
Silica gel 29
Colloidal silica 29
Fumed silica 30
Fused silica 30
Manufacturing processes 31
Sodium and potassium silicates 31
Other silicates 32
Silicas 32
Precipitated silica 32
Silica gel 33
Colloidal silica (silica sol) 33
Fumed silica 33
Fused silica 33
Environmental issues 34
Supply and demand by region 35
United States 35
Sodium silicates 35
Producing companies 35
Salient statistics 37
Consumption 37
Derivative chemicals 40
Detergents, soaps, and cleaners 40
Pulp and paper 41
Other 42
Price 42
Trade 43
Potassium silicates 44
Producing companies 44
Salient statistics 44
Consumption 45
Welding rods 46
Other binder uses 46
Detergent builder and other 47
Price 47
Calcium silicates 47
Producing companies 47
Salient statistics 48
Consumption 49
Rubber compounding 49
Pesticide carrier 49
Other 50
Price 50
Magnesium silicates 50
Producing companies 50
Salient statistics 51
Consumption 51
Adsorbent 52
Anticaking 52
Other 52
Price 53
Zirconium silicates 53
Ethyl silicate 53
Producing companies 53
Salient statistics 54
Consumption 55
Paints and coatings 55
Investment castings 55
Other 56
Price 56
Precipitated silica 56
Producing companies 56
Salient statistics 57
Consumption 58
Elastomers 59
Food and health care products 60
Batteries 60
Agricultural products 60
Antifoams 61
Catalysts 62
Other 62
Price 63
Silica gel 63
Producing companies 63
Salient statistics 63
Consumption 64
Adsorbents/desiccants 65
Food and health care products 66
Paints and coatings 66
Catalysts 67
Other 67
Trade 68
Colloidal silica (silica sol) 69
Producing companies 69
Salient statistics 69
Consumption 70
Pulp and paper 71
Investment castings 72
Refractory binders 72
Electronics 72
Catalysts, antiblocking agents, and other 73
Price 73
Fumed silica 73
Producing companies 73
Salient statistics 75
Consumption 75
Silicones 76
Coatings and inks 76
CMP 77
Polyester resins 77
Adhesives and sealants 77
Other 77
Price 78
Fused silica 78
Producing companies 78
Salient statistics 79
Consumption 80
Investment castings 80
Other refractories 81
Electronics and other 81
Price 81
Canada 81
Sodium silicates 81
Producing companies 81
Salient statistics 82
Consumption 83
Pulp and paper 83
Detergents, soaps, and cleaners 84
Other 84
Price 84
Trade 85
Potassium silicates 85
Producing companies 85
Salient statistics 86
Consumption 86
Other specialty silicas 87
Mexico 88
Sodium silicates 88
Producing companies 88
Salient statistics 88
Consumption 89
Price 90
Trade 90
Potassium silicates 91
Producing companies 91
Salient statistics 91
Precipitated silica 92
Producing companies 92
Salient statistics 92
Consumption 93
Price 94
Silica gel 95
Producing companies 95
Salient statistics 95
Colloidal silica 95
Producing companies 95
Salient statistics 95
Fumed silica 96
Producing companies 96
Salient statistics 96
Central and South America 97
Sodium silicates 97
Producers 97
Salient statistics 98
Consumption 99
Trade 100
Potassium silicate 100
Producers 100
Salient statistics 101
Calcium silicate 102
Producers 102
Salient statistics 102
Magnesium silicate 103
Producers 103
Salient statistics 103
Consumption 104
Zirconium silicate 104
Producers 104
Salient statistics 105
Consumption 105
Precipitated silica 106
Producers 106
Salient statistics 106
Consumption 107
Silica gel 107
Salient statistics 107
Consumption 108
Colloidal silica (silica sol) 108
Salient statistics 109
Western Europe 109
Sodium silicates 110
Producing companies 110
Salient statistics 112
Consumption 114
Derivative chemicals 116
Detergents, soaps, and cleaners 116
Pulp and paper 117
Other direct uses 117
Price 118
Trade 119
Potassium silicates 119
Producing companies 119
Salient statistics 120
Consumption 121
Construction industry 122
Welding rods 122
Detergents 122
Molecular sieves 122
Other 122
Price 122
Trade 123
Calcium silicates 124
Producing companies 124
Salient statistics 124
Magnesium silicates 125
Producing companies 125
Salient statistics 126
Ethyl silicate 127
Producing companies 127
Salient statistics 127
Precipitated silica 128
Producing companies 128
Salient statistics 128
Consumption 129
Elastomers 130
Detergent and cosmetic auxiliaries 131
Carrier material and free-flow agents 131
Polymers and plastic products 131
Other 131
Price 131
Silica gel 131
Producing companies 131
Salient statistics 132
Consumption 133
Food applications 134
Adsorbents and desiccants 134
Paint and coatings 134
Plastics and textiles 135
Pharmaceutical tableting 135
Other 135
Price 135
Colloidal silica (silica sol) 135
Producing companies 135
Salient statistics 136
Consumption 137
Ceramics 138
Coatings 138
Pulp and paper 139
Electronics 139
Beverage clarification 139
Textile processing 140
Other 140
Price 141
Fumed silica 141
Producing companies 141
Salient statistics 141
Consumption 142
Silicones 143
Paints and coatings 143
Adhesives and sealants 143
Other 143
Price 144
Silica fume 144
Fused silica 144
Producing companies 144
Salient statistics 145
Consumption 145
Trade 145
Central Europe 146
Sodium silicates 146
Producing companies 146
Salient statistics 147
Consumption 148
Potassium silicate 148
Precipitated silica 148
Commonwealth of Independent States (CIS) 150
Sodium silicates 150
Producing companies 150
Salient statistics 150
Consumption 151
Trade 152
Potassium silicates 152
Silica 153
Producing companies 153
Salient statistics 153
Trade 153
Middle East and Africa 154
Sodium silicates 154
Producing companies 154
Salient statistics 156
Consumption 156
Trade 157
Potassium silicates 159
Precipitated silica 159
Producing companies 159
Salient statistics 159
Fumed silica 160
Producing companies 160
Salient statistics 161
Consumption 161
Mainland China 162
Sodium silicates 162
Producing companies 162
Salient statistics 165
Consumption 167
Precipitated silica 167
Silica gel 167
Colloidal silica 167
Zeolites 168
Detergents and cleaners 168
Pulp and paper 168
Other 168
Price 168
Trade 168
Potassium silicate 170
Producing companies 170
Consumption 170
Price 171
Calcium silicate 171
Producing companies 171
Consumption 172
Price 172
Magnesium silicate 172
Producing companies 172
Consumption 173
Price 173
Zirconium silicate 173
Producing companies 173
Consumption 174
Price 175
Ethyl silicate 175
Producing companies 175
Consumption 175
Price 176
Other silicates 176
Precipitated silica 177
Producing companies 177
Salient statistics 178
Consumption 179
Rubber 179
Pesticide/feed 180
Paints and coatings 180
Food and beverage 180
Other 180
Price 180
Trade 180
Silica gel 181
Producing companies 181
Salient statistics 181
Consumption 182
Trade 183
Colloidal silica 183
Producing companies 183
Consumption 184
Price 185
Fumed silica 185
Producing companies 185
Salient statistics 186
Consumption 187
Price 188
Fused silica 188
Producing companies 188
Consumption 188
Price 189
Japan 189
Sodium silicates 189
Producing companies 189
Salient statistics 190
Production 191
Consumption 192
Civil engineering 193
Derivative chemicals 193
Pulp and paper 194
Detergent builders 194
Other 194
Price 194
Trade 195
Potassium silicates 195
Producing companies 195
Salient statistics 196
Production 196
Consumption 197
Detergent builders 198
Paint additives 198
Welding rods 198
Price 198
Trade 198
Calcium silicates 199
Magnesium silicates 199
Ethyl silicate 199
Precipitated silica 199
Producing companies 199
Salient statistics 200
Consumption 201
Elastomers 202
Agricultural products 202
Paper 202
Other 202
Price 202
Trade 203
Silica gel 203
Producing companies 203
Salient statistics 203
Consumption 204
Desiccants 205
Other 205
Price 205
Trade 205
Colloidal silica 205
Producing companies 205
Salient statistics 206
Consumption 207
CMP 207
Catalysts 207
Other 207
Price 208
Trade 208
Fumed silica 208
Producing companies 208
Salient statistics 208
Consumption 209
Silicone elastomers 209
CMP 209
Other 210
Price 210
Trade 210
Fused silica 210
Producing companies 210
Salient statistics 211
Consumption 211
Electronic encapsulants 212
Refractories and other 212
Price 212
Trade 213
Other Asia 213
Sodium silicates 213
Producing companies 213
Salient statistics 215
Trade 216
Potassium silicate 217
Producing companies 217
Salient statistics 218
Calcium silicate 219
Producing companies 219
Salient statistics 219
Magnesium silicate 220
Producing companies 220
Salient statistics 220
Zirconium silicate 220
Producing companies 220
Salient statistics 221
Ethyl silicate 221
Precipitated silica 221
Producing companies 221
Salient statistics 223
Silica gel 224
Producing companies 224
Salient statistics 225
Other specialty silicas 225
Colloidal silica 227
Fumed silica 227
Fused silica 227
Additional resources 229
Revisions 230
Data Workbook 231
Notice 232

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