China Clay for White ware Industry:
Required Specification for Bone China:
The addition of China clay in the Bone China composition is required to provide plasticity and green strength for handling of green wares as ball clays cannot be used in bone china due to high iron oxide and titania contents. The china clay also increases the […]
China Clay for White ware Industry:
Required Specification for general Vitreous Ware:
China clays are generally large particle, medium plastic, medium drying Shrinkage, poor dry strength but white fired colour minerals. China clays of relatively plastic type are the preferable choice in porcelain manufacture. Crude Clay after washing will have the following theoretical composition.
Silica (SiO2) – 46.3 […]
China Clay for White ware Industry:
China Clay is one of the most important raw materials for manufacturing White Ware products. Find below the ideal percentage content of China Clay in different White Ware Products;
Vitreous Sanitary Ware – 25 to 30%
Fine Fire Clay Sanitary Ware – 25 to 30%
Hard Porcelain – 30 to 40%
Soft Porcelain – […]
Some Simple tests to determine best Kaolin for Paint Industry:
1. Kaolin is a hydrated silicate of alumina and hence it should be insoluble in water, alkali or dilute acid solutions. However long boiling with strong sulphuric acid should form alumina sulphate in solution and a precipitate of silica.
2. […]
China Clay for Paint Industry:
China clays are not generally used to the extent it deserves in paint industry. This is mainly due to its great oil absorption characteristics and on account of the clay becoming rather transparent when ground in oil. The average specific gravity of china clay or kaolin is 2.25, and a gallon […]
China Clay for Paint Industry:
When china clay is imported it comes in large containers and the clay is in lump form. This usually contains anywhere from 6 to 10 per cent moisture that has to be driven off before it can be used by the paint maker. This will add up to the material cost. […]
China Clay for Paint Industry:
Kaolin just refers to the white earthy pigment of silica and alumina. All the white clays for use in paint must contain Silica and alumina combined with water. The texture of the clay varies according to this composition. China clays with the closest match to the below chemical composition are the […]
Export Market
At present, most of the production is consumed within the country as there is a huge demand for the mineral within the country. Designated as a medium-value mineral, there are no restrictions on exports and imports of china clay. Exports are confined mainly to neighboring countries like Bangladesh, Nepal and Sri Lanka. China clay […]
Indian Reserves
Giving an overview of the country’s reserves position, the study points out th at out of the 10,420 lt of recoverable china clay reserves in the country, some 71 per cent was located in West Bengal, Rajasthan, Orissa and Kerala and the remaining reserves are spread over in 15 different States. Most of the […]
Industrial Usage
Ceramic Sector is the major consumer of processed china clay. Besides ceramics, the other industries which consume this mineral in substantial quantities are paper, paint, plastics and rubber. Crude china clay is consumed mainly by the cement units, and insecticide and refractory sectors. Minor uses are in pharmaceuticals, cosmetics, textile, ink, ultramarine, fibre glass, […]
