A known process for producing opaque, synthetic quartz glass by melting SiO 2 granulate comprises the process steps: synthesis of amorphous SiO 2 primary particles, granulation of the amorphous SiO 2 primary particles to form an open-pored SiO 2 granulate, sintering of the open-pore SiO 2 Granules by heating in a sintering atmosphere at a sintering temperature and during a sintering period to form a compacted SiO 2 granules, and melting the compacted SiO 2 granules at a melt temperature to form the synthetic quartz glass. To this end, to provide a method that allows cost-effective production of low-bubble, transparent components made of quartz glass despite the use of still open-pore SiO 2 granules. According to the invention, it is proposed that the sintering atmosphere, sintering temperature and sintering duration during sintering according to process step (c) be set so that the compacted SiO 2 granules remain open-pored and at the same time have a material-specific infrared transmission at a wavelength of 1700 nm T 1700, which is in the range of 50 to 95% of the infrared transmission T 1700 of a quartz glass grain of the same material.
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